A method and apparatus for mounting optical components is described. The apparatus is suitable for mounting multiple optical components and comprises a baseplate having opposing first and second surfaces. Recesses or apertures are formed within the baseplate and are located upon the first or second surfaces so as to define thermally activated optic mounting areas. Pillars are then located within the thermally activated optic mounting areas and these provide a means for attaching the optical component to the baseplate. The employment of the recesses or apertures act to significantly reduce the thermal conduction throughout the baseplate. As a result preferential heating can be provided to the one or more thermally activated optic mounting areas while maintaining the baseplate with a desired mechanical strength. The optical mounting apparatus exhibits a high thermal stability thus making the apparatus ideally suited for use within commercial optical system.
B23K 1/00 - Soldering, e.g. brazing, or unsoldering
G02B 6/42 - Coupling light guides with opto-electronic elements
G02B 7/00 - Mountings, adjusting means, or light-tight connections, for optical elements
G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
G02B 7/182 - Mountings, adjusting means, or light-tight connections, for optical elements for prismsMountings, adjusting means, or light-tight connections, for optical elements for mirrors for mirrors
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific and measuring apparatus and instruments; Internet
enabled scientific and measuring apparatus and instruments;
lasers and laser systems; laser diodes; solid state lasers;
control apparatus for lasers and laser systems; Internet
enabled control apparatus for lasers and laser systems;
Internet enabled control apparatus for optics and optical
systems; optical apparatus and instruments; objectives,
eye-pieces, reticles, focusing mechanisms, microscope bodies
and barrels; diaphragms, shutters, optical tables and rails;
optical component holders; mounts and positioning apparatus
for optical components; vibration isolation apparatus being
parts of optical instruments, optical sources, optical
components; optical lenses; optical condensers, mirrors,
windows and flats; beam samplers, beam splitters; fiber
optic couplers, optical separators, and polarisers;
electro-optical couplers, splitters, polarisers and
modulators; prisms and optical filters; optical beam
deflectors, optical beam detectors; parts and fittings for
all of the aforesaid goods; computer software; computer
software for the control of scientific and measuring
apparatus and instruments; computer software for the control
of optics and optical systems; leak testing and detection
apparatus; microscopes; light sheet microscopes; biological
microscopes; microscopes for medical use; apparatus and
instruments for microscopy; apparatus and instruments for
light sheet fluorescence microscopy; apparatus and
instruments for light sheet imaging; microscope condensers;
microscope illuminating devices; reflectors and prisms for
microscopes; microscope lenses and reflectors; parts and
fittings for all the aforesaid goods. Medical, surgical and veterinary apparatus and instruments;
diagnostic, examination and monitoring equipment; medical
imaging apparatus; lasers and laser systems for medical,
veterinary, surgical, and ophthalmic use; accessories for
laser and laser systems for medical, surgical, veterinary
and ophthalmic use; parts and fittings for all the aforesaid
goods. Installation, assembly, maintenance, and repair of
scientific and measuring apparatus and instruments and in
particular microscopes, light sheet microscopes, lasers,
laser systems, optics and optical systems; maintenance and
repair of medical, surgical, veterinary and ophthalmic
apparatus and instruments; assembly, maintenance and repair
of laboratory equipment; advisory and consultancy services
relating to the above. Scientific consultancy, research and development; scientific
testing services; technological services; scientific
laboratory services; rental of scientific equipment and in
particular lasers and laser systems, optics and optical
systems; research, development and design services all
relating to science, technology, lasers and laser systems,
optics and optical systems, and new products within these
fields; research and development in the fields of microscopy
and light sheet microscopy; design and development of
computer software; provision of scientific information;
biological research and analysis; biological laboratory
services; calibration services relating to medical
apparatus; design and development of medical, veterinary,
surgical and biological diagnostic and screening apparatus
and instruments; monitoring of scientific and measuring
apparatus and instruments and in particular lasers and laser
systems, optics and optical systems; advisory and
consultancy services relating to the above.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific and measuring apparatus and instruments; Internet
enabled scientific and measuring apparatus and instruments;
lasers and laser systems; laser diodes; solid state lasers;
control apparatus for lasers and laser systems; Internet
enabled control apparatus for lasers and laser systems;
Internet enabled control apparatus for optics and optical
systems; optical apparatus and instruments; objectives,
eye-pieces, reticles, focusing mechanisms, microscope bodies
and barrels; diaphragms, shutters, optical tables and rails;
optical component holders; mounts and positioning apparatus
for optical components; vibration isolation apparatus being
parts of optical instruments, optical sources, optical
components; lenses; optical condensers, mirrors, windows and
flats; beam samplers, beam splitters; fiber optic couplers,
optical separators and polarisers; electro-optical couplers,
splitters, polarisers and modulators; prisms and optical
filters; optical beam deflectors, optical beam detectors;
parts and fittings for all of the aforesaid goods; computer
software; computer software for the control of scientific
and measuring apparatus and instruments; computer software
for the control of optics and optical systems; leak testing
and detection apparatus; microscopes; light sheet
microscopes; biological microscopes; microscopes for medical
use; apparatus and instruments for microscopy; apparatus and
instruments for light sheet fluorescence microscopy;
apparatus and instruments for light sheet imaging;
microscope condensers; microscope illuminating devices;
reflectors and prisms for microscopes; microscope lenses and
reflectors; parts and fittings for all the aforesaid goods. Medical, surgical and veterinary apparatus and instruments;
diagnostic, examination and monitoring equipment; medical
imaging apparatus; lasers and laser systems for medical,
veterinary, surgical, and opthalmic use; accessories for
laser and laser systems for medical, surgical, veterinary
and ophthalmic use; parts and fittings for all the aforesaid
goods. Installation, assembly, maintenance, and repair of
scientific and measuring apparatus and instruments and in
particular microscopes, light sheet microscopes, lasers,
laser systems, optics and optical systems; maintenance and
repair of medical, surgical, veterinary and ophthalmic
apparatus and instruments; assembly, maintenance and repair
of laboratory equipment; advisory and consultancy services
relating to the above. Scientific consultancy, research and development; scientific
testing services; technological services; scientific
laboratory services; rental of scientific equipment and in
particular lasers and laser systems, optics and optical
systems; research, development and design services all
relating to science, technology, lasers and laser systems,
optics and optical systems, and new products within these
fields; research and development in the fields of microscopy
and light sheet microscopy; design and development of
computer software; provision of scientific information;
biological research and analysis; biological laboratory
services; calibration services relating to medical
apparatus; design and development of medical, veterinary,
surgical and biological diagnostic and screening apparatus
and instruments; monitoring of scientific and measuring
apparatus and instruments and in particular lasers and laser
systems, optics and optical systems; advisory and
consultancy services relating to the above.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific and measuring apparatus and instruments; Internet
enabled scientific and measuring apparatus and instruments;
lasers and laser systems; laser diodes; solid state lasers;
control apparatus for lasers and laser systems; Internet
enabled control apparatus for lasers and laser systems;
Internet enabled control apparatus for optics and optical
systems; optical apparatus and instruments; objectives,
eye-pieces, reticles, focusing mechanisms, microscope bodies
and barrels; diaphragms, shutters, optical tables and rails;
optical component holders; mounts and positioning apparatus
for optical components; vibration isolation apparatus being
parts of optical instruments, optical sources, optical
components; lenses; optical condensers, mirrors, windows and
flats; beam samplers, beam splitters; fiber optic couplers,
optical separators and polarisers; electro-optical couplers,
splitters, polarisers and modulators; prisms and optical
filters; optical beam deflectors, optical beam detectors;
parts and fittings for all of the aforesaid goods; computer
software; computer software for the control of scientific
and measuring apparatus and instruments; computer software
for the control of optics and optical systems; leak testing
and detection apparatus; microscopes; light sheet
microscopes; biological microscopes; microscopes for medical
use; apparatus and instruments for microscopy; apparatus and
instruments for light sheet fluorescence microscopy;
apparatus and instruments for light sheet imaging;
microscope condensers; microscope illuminating devices;
reflectors and prisms for microscopes; microscope lenses and
reflectors; parts and fittings for all the aforesaid goods. Medical, surgical and veterinary apparatus and instruments;
diagnostic, examination and monitoring equipment; medical
imaging apparatus; lasers and laser systems for medical,
veterinary, surgical, and opthalmic use; accessories for
laser and laser systems for medical, surgical, veterinary
and ophthalmic use; parts and fittings for all the aforesaid
goods. Installation, assembly, maintenance, and repair of
scientific and measuring apparatus and instruments and in
particular microscopes, light sheet microscopes, lasers,
laser systems, optics and optical systems; maintenance and
repair of medical, surgical, veterinary and ophthalmic
apparatus and instruments; assembly, maintenance and repair
of laboratory equipment; advisory and consultancy services
relating to the above. Scientific consultancy, research and development; scientific
testing services; technological services; scientific
laboratory services; rental of scientific equipment and in
particular lasers and laser systems, optics and optical
systems; research, development and design services all
relating to science, technology, lasers and laser systems,
optics and optical systems, and new products within these
fields; research and development in the fields of microscopy
and light sheet microscopy; design and development of
computer software; provision of scientific information;
biological research and analysis; biological laboratory
services; calibration services relating to medical
apparatus; design and development of medical, veterinary,
surgical and biological diagnostic and screening apparatus
and instruments; monitoring of scientific and measuring
apparatus and instruments and in particular lasers and laser
systems, optics and optical systems; advisory and
consultancy services relating to the above.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific and measuring apparatus and instruments; Internet
enabled scientific and measuring apparatus and instruments;
lasers and laser systems; laser diodes; solid state lasers;
control apparatus for lasers and laser systems; Internet
enabled control apparatus for lasers and laser systems;
Internet enabled control apparatus for optics and optical
systems; optical apparatus and instruments; objectives,
eye-pieces, reticles, focusing mechanisms, microscope bodies
and barrels; diaphragms, shutters, optical tables and rails;
optical component holders; mounts and positioning apparatus
for optical components; vibration isolation apparatus being
parts of optical instruments, optical sources, optical
components; lenses; optical condensers, mirrors, windows and
flats; beam samplers, beam splitters; fiber optic couplers,
optical separators and polarisers; electro-optical couplers,
splitters, polarisers and modulators; prisms and optical
filters; optical beam deflectors, optical beam detectors;
parts and fittings for all of the aforesaid goods; computer
software; computer software for the control of scientific
and measuring apparatus and instruments; computer software
for the control of optics and optical systems; leak testing
and detection apparatus; microscopes; light sheet
microscopes; biological microscopes; microscopes for medical
use; apparatus and instruments for microscopy; apparatus and
instruments for light sheet fluorescence microscopy;
apparatus and instruments for light sheet imaging;
microscope condensers; microscope illuminating devices;
reflectors and prisms for microscopes; microscope lenses and
reflectors; parts and fittings for all the aforesaid goods. Medical, surgical and veterinary apparatus and instruments;
diagnostic, examination and monitoring equipment; medical
imaging apparatus; lasers and laser systems for medical,
veterinary, surgical, and opthalmic use; accessories for
laser and laser systems for medical, surgical, veterinary
and ophthalmic use; parts and fittings for all the aforesaid
goods. Installation, assembly, maintenance, and repair of
scientific and measuring apparatus and instruments and in
particular microscopes, light sheet microscopes, lasers,
laser systems, optics and optical systems; maintenance and
repair of medical, surgical, veterinary and ophthalmic
apparatus and instruments; assembly, maintenance and repair
of laboratory equipment; advisory and consultancy services
relating to the above. Scientific consultancy, research and development; scientific
testing services; technological services; scientific
laboratory services; rental of scientific equipment and in
particular lasers and laser systems, optics and optical
systems; research, development and design services all
relating to science, technology, lasers and laser systems,
optics and optical systems, and new products within these
fields; research and development in the fields of microscopy
and light sheet microscopy; design and development of
computer software; provision of scientific information;
biological research and analysis; biological laboratory
services; calibration services relating to medical
apparatus; design and development of medical, veterinary,
surgical and biological diagnostic and screening apparatus
and instruments; monitoring of scientific and measuring
apparatus and instruments and in particular lasers and laser
systems, optics and optical systems; advisory and
consultancy services relating to the above.
6.
APPARATUS AND METHOD FOR STERILISATION OF PATHOGENS
A laser system and method for generating a continuous-wave, tuneable optical output field having a wavelength between 200 nm and 300 nm is disclosed. The laser system comprising: a continuous-wave, narrow-linewidth, tuneable optical field source employed to generate a first output field. The first output field is arranged to propagate thorough the first enhancement cavity frequency double to generate a first frequency doubled output field. The first frequency doubled output field is then arranged to propagate thorough a second enhancement cavity frequency double to generate a second frequency doubled output field which acts as an output field for the laser system. The laser system thus provides a frequency-agile, high power and spectrally pure light source across the UVC the region of the electromagnetic spectrum which makes it a flexible and efficient source for the sterilisation or decontamination of pathogens.
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
C12N 7/00 - Viruses, e.g. bacteriophagesCompositions thereofPreparation or purification thereof
H01S 3/106 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
A nonlinear crystal comprising a first end face and an opposing second end face is described. The first and second end faces are separated along an optical axis of the nonlinear crystal by a length in the range of 0.25 mm and 2 mm. Although the length of the nonlinear crystal results in a reduction in the nonlinear effects induced on an optical field propagating through the crystal it also provides for reduced deviation experienced by the generated optical field when the nonlinear crystal is rotated. Therefore, when the nonlinear crystals are incorporated within an enhancement cavity their reduced length allows for the deviation of the output field to be minimised by servo control electronics arranged to adjust a single cavity mirror. This significantly reduces the complexity, and thus expensive of the servo control electronics when compared to those employed with the prior art enhancement cavities.
A method and system for combining two or more optical fields is disclosed. A first continuous-wave high powered output field generated by a solid-state master laser is injected into a first solid state optical amplifier to produce a single output field from the laser system that exhibits a high phase-coherence with the output field of the master laser. The power of the output field equals the sum of powers of the master laser and that generated by the first optical amplifier, while exhibiting similar beams characteristics to that produced by the output field of the master laser i.e. it exhibits low noise, in a single transverse and longitudinal mode Gaussian beam, and has a single polarisation. The laser system is highly scalable in that N optical amplifiers may be located in series with the master laser to provide a single low noise, high power output field.
H01S 3/094 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency mixing modules; Internet enabled scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency mixing modules; continuous-wave laser frequency mixing modules not for medical use; solid state continuous-wave laser frequency mixing modules not for medical use; electronic control apparatus for continuous-wave laser frequency mixing modules not for medical use; Internet enabled control apparatus for continuous-wave laser frequency mixing modules not for medical use; downloadable computer software for the control of continuous-wave laser frequency mixing modules; recorded computer software for the control of continuous-wave laser frequency mixing modules.
(2) Surgical and veterinary instruments, namely, continuous-wave laser frequency mixing modules; diagnostic, examination and monitoring equipment, namely, continuous-wave laser frequency mixing modules; medical imaging apparatus, namely, continuous-wave laser frequency mixing modules; continuouswave laser frequency mixing modules for veterinary, surgical, and opthalmic use; accessories for continuouswave laser frequency mixing modules for surgical, veterinary and ophthalmic use; parts and fittings for continuous-wave laser frequency mixing modules for surgical, veterinary and ophthalmic use. (1) Installation, assembly, maintenance, and repair of scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency mixing modules; assembly, maintenance and repair of continuouswave laser frequency mixing modules; advisory and consultancy services relating to installation, assembly, maintenance, and repair of continuous-wave laser frequency mixing modules.
(2) Scientific consultancy, research and development in the field of continuous-wave laser frequency mixing modules; technological services, namely, consultation related to research development and design of continuous-wave laser frequency mixing modules; rental of scientific equipment, namely, continuous-wave laser frequency mixing modules; design and development of computer software for the control of continuouswave laser frequency mixing modules; monitoring of scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency mixing modules, to ensure proper functioning; advisory and consultancy services relating to continuous-wave laser frequency mixing modules.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency mixing modules; Internet enabled scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency mixing modules; continuous-wave laser frequency mixing modules not for medical use; solid state continuous-wave laser frequency mixing modules not for medical use; electronic control apparatus for continuous-wave laser frequency mixing modules not for medical use; Internet enabled control apparatus for continuous-wave laser frequency mixing modules not for medical use; downloadable computer software for the control of continuous-wave laser frequency mixing modules; recorded computer software for the control of continuous-wave laser frequency mixing modules Installation, assembly, maintenance, and repair of scientific and measuring apparatus and instruments and in particular continuous-wave laser frequency mixing modules; assembly, maintenance and repair of continuous-wave laser frequency mixing modules; advisory and consultancy services relating to installation, assembly, maintenance, and repair of continuous-wave laser frequency mixing modules Scientific consultancy, research and development in the field of continuous-wave laser frequency mixing modules; technological services, namely, consultation related to research development and design of continuous-wave laser frequency mixing modules; rental of scientific equipment in particular continuous-wave laser frequency mixing modules; design and development of computer software for the control of continuous-wave laser frequency mixing modules; monitoring of scientific and measuring apparatus and instruments and in particular continuous-wave laser frequency mixing modules to ensure proper functioning; advisory and consultancy services relating to continuous-wave laser frequency mixing modules
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency mixing modules; Internet enabled scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency mixing modules; continuous-wave laser frequency mixing modules not for medical use; solid state continuous-wave laser frequency mixing modules not for medical use; electronic control apparatus for continuous-wave laser frequency mixing modules not for medical use; Internet enabled control apparatus for continuous-wave laser frequency mixing modules not for medical use; downloadable computer software for the control of continuous-wave laser frequency mixing modules; recorded computer software for the control of continuous-wave laser frequency mixing modules.
(2) Surgical and veterinary instruments, namely, continuous-wave laser frequency mixing modules; diagnostic, examination and monitoring equipment, namely, continuous-wave laser frequency mixing modules; medical imaging apparatus, namely, continuous-wave laser frequency mixing modules; continuouswave laser frequency mixing modules for veterinary, surgical, and opthalmic use; accessories for continuouswave laser frequency mixing modules for surgical, veterinary and ophthalmic use; parts and fittings for continuous-wave laser frequency mixing modules for surgical, veterinary and ophthalmic use. (1) Installation, assembly, maintenance, and repair of scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency mixing modules; assembly, maintenance and repair of continuouswave laser frequency mixing modules; advisory and consultancy services relating to installation, assembly, maintenance, and repair of continuous-wave laser frequency mixing modules.
(2) Scientific consultancy, research and development in the field of continuous-wave laser frequency mixing modules; technological services, namely, consultation related to research development and design of continuous-wave laser frequency mixing modules; rental of scientific equipment, namely, continuous-wave laser frequency mixing modules; design and development of computer software for the control of continuouswave laser frequency mixing modules; monitoring of scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency mixing modules, to ensure proper functioning; advisory and consultancy services relating to continuous-wave laser frequency mixing modules.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency doubling modules; Internet enabled scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency doubling modules; continuous-wave laser frequency doubling modules not for medical use; solid state continuous-wave laser frequency doubling modules not for medical use; electronic control apparatus for continuous-wave laser frequency doubling modules not for medical use; Internet enabled control apparatus for continuous-wave laser frequency doubling modules not for medical use; downloadable computer software for the control of continuous-wave laser frequency doubling modules; recorded computer software for the control of continuous-wave laser frequency doubling modules.
(2) Surgical and veterinary instruments, namely, continuous-wave laser frequency doubling modules; diagnostic, examination and monitoring equipment, namely, continuous-wave laser frequency doubling modules; medical imaging apparatus, namely, continuous-wave laser frequency doubling modules; continuouswave laser frequency doubling modules for veterinary, surgical, and opthalmic use; accessories for continuouswave laser frequency doubling modules for surgical, veterinary and ophthalmic use; parts and fittings for continuous-wave laser frequency doubling modules for surgical, veterinary and ophthalmic use. (1) Installation, assembly, maintenance, and repair of scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency doubling modules; assembly, maintenance and repair of continuouswave laser frequency doubling modules; advisory and consultancy services relating to installation, assembly, maintenance, and repair of continuous-wave laser frequency doubling modules.
(2) Scientific consultancy, research and development in the field of continuous-wave laser frequency doubling modules; technological services, namely, consultation related to research development and design of continuous-wave laser frequency doubling modules; rental of scientific equipment, namely, continuous-wave laser frequency doubling modules; design and development of computer software for the control of continuouswave laser frequency doubling modules; monitoring of scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency doubling modules, to ensure proper functioning; advisory and consultancy services relating to continuous-wave laser frequency doubling modules.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency mixing modules; Internet enabled scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency mixing modules; continuous-wave laser frequency mixing modules not for medical use; solid state continuous-wave laser frequency mixing modules not for medical use; electronic control apparatus for continuous-wave laser frequency mixing modules not for medical use; Internet enabled control apparatus for continuous-wave laser frequency mixing modules not for medical use; downloadable computer software for the control of continuous-wave laser frequency mixing modules; recorded computer software for the control of continuous-wave laser frequency mixing modules Installation, assembly, maintenance, and repair of scientific and measuring apparatus and instruments and in particular continuous-wave laser frequency mixing modules; assembly, maintenance and repair of continuous-wave laser frequency mixing modules; advisory and consultancy services relating to installation, assembly, maintenance, and repair of continuous-wave laser frequency mixing modules Scientific consultancy, research and development in the field of continuous-wave laser frequency mixing modules; technological services, namely, consultation related to research development and design of continuous-wave laser frequency mixing modules; rental of scientific equipment in particular continuous-wave laser frequency mixing modules; design and development of computer software for the control of continuous-wave laser frequency mixing modules; monitoring of scientific and measuring apparatus and instruments and in particular continuous-wave laser frequency mixing modules to ensure proper functioning; advisory and consultancy services relating to continuous-wave laser frequency mixing modules
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency doubling modules; Internet enabled scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency doubling modules; continuous-wave laser frequency doubling modules not for medical use; solid state continuous-wave laser frequency doubling modules not for medical use; electronic control apparatus for continuous-wave laser frequency doubling modules not for medical use; Internet enabled control apparatus for continuous-wave laser frequency doubling modules not for medical use; downloadable computer software for the control of continuous-wave laser frequency doubling modules; recorded computer software for the control of continuous-wave laser frequency doubling modules Installation, assembly, maintenance, and repair of scientific and measuring apparatus and instruments and in particular continuous-wave laser frequency doubling modules; assembly, maintenance and repair of continuous-wave laser frequency doubling modules; advisory and consultancy services relating to installation, assembly, maintenance, and repair of continuous-wave laser frequency doubling modules Scientific consultancy, research and development in the field of continuous-wave laser frequency doubling modules; technological services, namely, consultation related to research development and design of continuous-wave laser frequency doubling modules; rental of scientific equipment in particular continuous-wave laser frequency doubling modules; design and development of computer software for the control of continuous-wave laser frequency doubling modules; monitoring of scientific and measuring apparatus and instruments and in particular continuous-wave laser frequency doubling modules to ensure proper functioning; advisory and consultancy services relating to continuous-wave laser frequency doubling modules
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific and measuring apparatus and instruments, namely, continuous-wave lasers and continuous-wave frequency doubling modules; Internet enabled scientific and measuring apparatus and instruments, namely, continuous-wave lasers and continuous-wave frequency doubling modules; continuous-wave lasers and continuous-wave frequency doubling modules not for medical use; solid state continuous-wave lasers and continuous-wave frequency doubling modules not for medical use; electronic control apparatus for continuous-wave lasers and continuous-wave frequency doubling modules not for medical use; Internet enabled control apparatus for continuous-wave lasers and continuous-wave frequency doubling modules not for medical use; downloadable computer software for the control of continuous-wave lasers and continuous-wave frequency doubling modules; recorded computer software for the control of continuous-wave lasers and continuous-wave frequency doubling modules Installation, assembly, maintenance, and repair of scientific and measuring apparatus and instruments and in particular continuous-wave lasers and continuous-wave frequency doubling modules; assembly, maintenance and repair of continuous-wave lasers and continuous-wave frequency doubling modules; advisory and consultancy services relating to installation, assembly, maintenance, and repair of continuous-wave lasers and continuous-wave frequency doubling modules Scientific consultancy, research and development in the field of continuous-wave lasers and continuous-wave frequency doubling modules; technological services, namely, consultation related to research development and design of continuous-wave lasers and continuous-wave frequency doubling modules; rental of scientific equipment in particular continuous-wave lasers and continuous-wave frequency doubling modules ; design and development of computer software for the control of continuous-wave lasers and continuous-wave frequency doubling modules; monitoring of scientific and measuring apparatus and instruments and in particular continuous-wave lasers and continuous-wave frequency doubling modules to ensure proper functioning; advisory and consultancy services relating to continuous-wave lasers and continuous-wave frequency doubling modules
A laser diode drive system for generating a drive current for a laser diode is described. The laser diode drive system comprises a first laser diode driver connected to the laser diode by a first cable to provide a drive current source for the laser diode. A second laser diode driver is then connected to the laser diode by a second cable to provide a low current sink for the laser diode. A feedback control loop is employed to provide a feedback signal for the second laser diode driver from to sample of an output field of the laser diode. The laser diode drive system exhibits low power consumption while being capable of creating sufficient feedback bandwidth to reduce the excess optical noise by at least an order of magnitude at 1 MHz compared with laser diode drive systems comprising just a first laser diode driver.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency doubling modules; Internet enabled scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency doubling modules; continuous-wave laser frequency doubling modules not for medical use; solid state continuous-wave laser frequency doubling modules not for medical use; electronic control apparatus for continuous-wave laser frequency doubling modules not for medical use; Internet enabled control apparatus for continuous-wave laser frequency doubling modules not for medical use; downloadable computer software for the control of continuous-wave laser frequency doubling modules; recorded computer software for the control of continuous-wave laser frequency doubling modules.
(2) Surgical and veterinary instruments, namely, continuous-wave laser frequency doubling modules; diagnostic, examination and monitoring equipment, namely, continuous-wave laser frequency doubling modules; medical imaging apparatus, namely, continuous-wave laser frequency doubling modules; continuouswave laser frequency doubling modules for veterinary, surgical, and opthalmic use; accessories for continuouswave laser frequency doubling modules for surgical, veterinary and ophthalmic use; parts and fittings for continuous-wave laser frequency doubling modules for surgical, veterinary and ophthalmic use. (1) Installation, assembly, maintenance, and repair of scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency doubling modules; assembly, maintenance and repair of continuouswave laser frequency doubling modules; advisory and consultancy services relating to installation, assembly, maintenance, and repair of continuous-wave laser frequency doubling modules.
(2) Scientific consultancy, research and development in the field of continuous-wave laser frequency doubling modules; technological services, namely, consultation related to research development and design of continuous-wave laser frequency doubling modules; rental of scientific equipment, namely, continuous-wave laser frequency doubling modules; design and development of computer software for the control of continuouswave laser frequency doubling modules; monitoring of scientific and measuring apparatus and instruments, namely, continuous-wave laser frequency doubling modules, to ensure proper functioning; advisory and consultancy services relating to continuous-wave laser frequency doubling modules.
A method and system for injection-locking multiple optical amplifiers is disclosed. A master laser is employed to generate a continuous-wave output field. Optical modulators then produce first and second seed optical fields from the continuous-wave output field. The first and second seed optical fields provide an input to injection lock one or more optical amplifiers, optionally at different operating frequencies. Since the first and second seed optical fields are generated from the continuous-wave output field then the output fields of the optical amplifiers exhibit a high phase-coherence with each other and with the continuous-wave output field. Employing the first and second optical fields reduces the requirement to induce large frequency shifts on a single optical field. Techniques for phase-locking the output of the injection-locked laser systems are also provided to further reduce phase noise within the systems.
H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
H01S 3/137 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling devices placed within the cavity for stabilising of frequency
An optical frequency mixing module is described that comprises a nonlinear medium for frequency mixing the photons of one or more input optical fields to generate an output optical field; a nonlinear medium tuner for automatically phase matching the nonlinear medium to the one or more input optical fields to select the wavelength of the output optical field generated by the nonlinear medium; and a first direction correcting optic. The position of the first direction correcting optic relative to the nonlinear medium is dependent upon the selected wavelength of the output optical field and therefore ensures that the position and angle of propagation of this field remains constant and independent of its wavelength of. The optical frequency mixing modules therefore provides a means for automatically selecting the wavelength of the output field with no deviation being imparted onto the position or angle of propagation of the output field.
A laser system comprising two phase-locked solid-state laser sources is described. The laser system can be phase-locked at a predetermined offset between the operating frequencies of the lasers. This is achieved with high precision while exhibiting both low noise and high agility around the predetermined offset frequency. A pulse generator can be employed to generate a series of optical pulses from the laser system, the number, duration and shape of which can all be selected by a user. A phase-lock feedback loop provides a means for predetermined frequency chirps and phase shifts to be introduced throughout a sequence of generated pulses. The laser system can be made highly automated. The above features render the laser system ideally suited for use within coherent control two-state quantum systems, for example atomic interferometry, gyroscopes, precision gravimeters gravity gradiometers and quantum information processing and in particular the generation and control of quantum bits.
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
G01J 9/02 - Measuring optical phase differenceDetermining degree of coherenceMeasuring optical wavelength by interferometric methods
G01J 9/04 - Measuring optical phase differenceDetermining degree of coherenceMeasuring optical wavelength by beating two waves of the same source but of different frequency and measuring the phase shift of the lower frequency obtained
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 3/131 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
H03L 7/099 - Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
An electro-optic modulator (EOM) for altering an optical path length of an optical field is described. The EOM comprises first and second Brewster-angle cut nonlinear crystals having a first and second optical axis. The optical axes are orientated relative to each other such that when an optical field propagates through the nonlinear crystals it experiences no overall deviation. The nonlinear crystals are also arranged to be opposite handed relative to the optical field. The EOM has the advantage that its optical losses are lower when compared with those EOMs known in the art. In addition, the EOM can be inserted into, or removed from, an optical system without any deviation being imparted onto the optical field. This reduces the levels of skill and effort required on the part of an operator. The described method and apparatus for mounting the nonlinear crystals also suppresses problematic piezo-electric resonances within the nonlinear crystals.
H01S 3/108 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
H01S 3/08036 - Single-mode emission using intracavity dispersive, polarising or birefringent elements
H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
H01S 3/106 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
H01S 3/107 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using electro-optic devices, e.g. exhibiting Pockels or Kerr effect
H01S 3/0941 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a semiconductor laser, e.g. of a laser diode
A nonlinear crystal comprising a first curved face and an opposing second curved face is described. The first and second curved faces are arranged to provide the nonlinear crystal with rotational symmetry about at least one axis of the nonlinear crystal. The nonlinear crystal allows for frequency tuning of a generated optical field that is generated by propagating a fundamental optical field through the nonlinear crystal by rotation of the nonlinear crystal about an axis of rotation without any significant, or minimal, deviation being introduced to the generated optical field. These nonlinear crystals can therefore be incorporated into an external cavity frequency doubler or mixer without any need for the employment of optical compensation optics or servo control electronics to automatically realign the cavity mirrors.
A method and system for combining two or more optical fields is disclosed. A first continuous-wave high powered output field generated by a solid-state master laser is injected into a first solid state optical amplifier to produce a single output field from the laser system that exhibits a high phase-coherence with the output field of the master laser. The power of the output field equals the sum of powers of the master laser and that generated by the first optical amplifier, while exhibiting similar beams characteristics to that produced by the output field of the master laser i.e. it exhibits low noise, in a single transverse and longitudinal mode Gaussian beam, and has a single polarisation. The laser system is highly scalable in that N optical amplifiers may be located in series with the master laser to provide a single low noise, high power output field.
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 3/094 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
H01S 3/0941 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a semiconductor laser, e.g. of a laser diode
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
24.
LASER SYSTEM FOR COHERENTLY COMBINING MULTIPLE LASER SOURCES
A method and system for combining two or more optical fields is disclosed. A first continuous-wave high powered output field generated by a solid-state master laser is injected into a first solid state optical amplifier to produce a single output field from the laser system that exhibits a high phase-coherence with the output field of the master laser. The power of the output field equals the sum of powers of the master laser and that generated by the first optical amplifier, while exhibiting similar beams characteristics to that produced by the output field of the master laser i.e. it exhibits low noise, in a single transverse and longitudinal mode Gaussian beam, and has a single polarisation. The laser system is highly scalable in that N optical amplifiers may be located in series with the master laser to provide a single low noise, high power output field.
H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 3/0941 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a semiconductor laser, e.g. of a laser diode
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
H01S 3/08 - Construction or shape of optical resonators or components thereof
A method and apparatus for passively synchronising the repetition rate of two or more mode-locked lasers is described. The method and apparatus involve forming a first synchronising optical field (6) by separating a portion of an output field of a first mode-locked laser (2) and thereafter redirecting this synchronising optical field to form a driving signal for a second mode-locked laser (3). Employing these techniques results in systems with timing jitter of less than 1 fs. The method is independent of the wavelength and polarisation at which the mode-locked lasers operate and so is not limited to use with any particular type of mode-locked laser. Since the technique is passive it does not require the employment of electronics, variable time delay paths or additional non-linear optical crystals. Therefore, the method and apparatus are significantly less complex than those known in the art and are not power limited by additional non-linear optical processes. Part of the output (7) of the first mode-locked laser (2) is redirected via a beam splitter (9) and beam steering mirrors (11,12) and a half-wave plate (15) to a polariser (13) in the beam line of the second mode-locked laser (3). The seeding and synchronising signal from the first mode-locked laser (2) may be perpendicularly polarized with respect to the polarization of the second mode-locked laser (3) and may have a different wavelength.
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/11 - Mode lockingQ-switchingOther giant-pulse techniques, e.g. cavity dumping
A laser diode drive system for generating a drive current for a laser diode is described. The laser diode drive system comprises a first laser diode driver connected to the laser diode by a first cable to provide a drive current source for the laser diode. A second laser diode driver is then connected to the laser diode by a second cable to provide a low current sink for the laser diode. A feedback control loop is employed to provide a feedback signal for the second laser diode driver from to sample of an output field of the laser diode. The laser diode drive system exhibits low power consumption while being capable of creating sufficient feedback bandwidth to reduce the excess optical noise by at least an order of magnitude at 1 MHz compared with laser diode drive systems comprising just a first laser diode driver.
A laser diode drive system for generating a drive current for a laser diode is described. The laser diode drive system comprises a first laser diode driver connected to the laser diode by a first cable to provide a drive current source for the laser diode. A second laser diode driver is then connected to the laser diode by a second cable to provide a low current sink for the laser diode. A feedback control loop is employed to provide a feedback signal for the second laser diode driver from to sample of an output field of the laser diode. The laser diode drive system exhibits low power consumption while being capable of creating sufficient feedback bandwidth to reduce the excess optical noise by at least an order of magnitude at 1 MHz compared with laser diode drive systems comprising just a first laser diode driver.
A method and system for injection-locking multiple optical amplifiers is disclosed. A master laser is employed to generate a continuous-wave output field. Optical modulators then produce first and second seed optical fields from the continuous-wave output field. The first and second seed optical fields provide an input to injection lock one or more optical amplifiers, optionally at different operating frequencies. Since the first and second seed optical fields are generated from the continuous-wave output field then the output fields of the optical amplifiers exhibit a high phase-coherence with each other and with the continuous-wave output field. Employing the first and second optical fields reduces the requirement to induce large frequency shifts on a single optical field. Techniques for phase-locking the output of the injection-locked laser systems are also provided to further reduce phase noise within the systems.
H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
H01S 3/139 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the mutual position or the reflecting properties of the reflectors of the cavity
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
A method and system for injection-locking multiple optical amplifiers is disclosed. A master laser is employed to generate a continuous-wave output field. Optical modulators then produce first and second seed optical fields from the continuous-wave output field. The first and second seed optical fields provide an input to injection lock one or more optical amplifiers, optionally at different operating frequencies. Since the first and second seed optical fields are generated from the continuous-wave output field then the output fields of the optical amplifiers exhibit a high phase-coherence with each other and with the continuous-wave output field. Employing the first and second optical fields reduces the requirement to induce large frequency shifts on a single optical field. Techniques for phase-locking the output of the injection-locked laser systems are also provided to further reduce phase noise within the systems.
H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
H01S 3/139 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the mutual position or the reflecting properties of the reflectors of the cavity
A laser system comprising two phase-locked solid-state laser sources is described. The laser system can be phase-locked at a predetermined offset between the operating frequencies of the lasers. This is achieved with high precision while exhibiting both low noise and high agility around the predetermined offset frequency. A pulse generator can be employed to generate a series of optical pulses from the laser system, the number, duration and shape of which can all be selected by a user. A phase-lock feedback loop provides a means for predetermined frequency chirps and phase shifts to be introduced throughout a sequence of generated pulses. The laser system can be made highly automated. The above features render the laser system ideally suited for use within coherent control two- state quantum systems, for example atomic interferometry, gyroscopes, precision gravimeters gravity gradiometers and quantum information processing and in particular the generation and control of quantum bits.
H01S 3/139 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the mutual position or the reflecting properties of the reflectors of the cavity
H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 3/094 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
H01S 3/131 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
A laser system comprising two phase-locked solid-state laser sources is described. The laser system can be phase-locked at a predetermined offset between the operating frequencies of the lasers. This is achieved with high precision while exhibiting both low noise and high agility around the predetermined offset frequency. A pulse generator can be employed to generate a series of optical pulses from the laser system, the number, duration and shape of which can all be selected by a user. A phase-lock feedback loop provides a means for predetermined frequency chirps and phase shifts to be introduced throughout a sequence of generated pulses. The laser system can be made highly automated. The above features render the laser system ideally suited for use within coherent control two- state quantum systems, for example atomic interferometry, gyroscopes, precision gravimeters gravity gradiometers and quantum information processing and in particular the generation and control of quantum bits.
H01S 3/139 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the mutual position or the reflecting properties of the reflectors of the cavity
H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 3/094 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
H01S 3/131 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
An electro-optic modulator (EOM) for altering an optical path length of an optical field is described. The EOM comprises first and second Brewster-angle cut nonlinear crystals having a first and second optical axis. The optical axes are orientated relative to each other such that when an optical field propagates through the nonlinear crystals it experiences no overall deviation. The nonlinear crystals are also arranged to be opposite handed relative to the optical field. The EOM has the advantage that its optical losses are lower when compared with those EOMs known in the art. In addition, the EOM can be inserted into, or removed from, an optical system without any deviation being imparted onto the optical field. This reduces the levels of skill and effort required on the part of an operator. The described method and apparatus for mounting the nonlinear crystals also suppresses problematic piezo-electric resonances within the nonlinear crystals.
G02F 1/03 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels or Kerr effect
G02F 1/355 - Non-linear optics characterised by the materials used
H01S 3/107 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using electro-optic devices, e.g. exhibiting Pockels or Kerr effect
An electro-optic modulator (EOM) for altering an optical path length of an optical field is described. The EOM comprises first and second Brewster-angle cut nonlinear crystals having a first and second optical axis. The optical axes are orientated relative to each other such that when an optical field propagates through the nonlinear crystals it experiences no overall deviation. The nonlinear crystals are also arranged to be opposite handed relative to the optical field. The EOM has the advantage that its optical losses are lower when compared with those EOMs known in the art. In addition, the EOM can be inserted into, or removed from, an optical system without any deviation being imparted onto the optical field. This reduces the levels of skill and effort required on the part of an operator. The described method and apparatus for mounting the nonlinear crystals also suppresses problematic piezo-electric resonances within the nonlinear crystals.
G02F 1/03 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels or Kerr effect
H01S 3/107 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using electro-optic devices, e.g. exhibiting Pockels or Kerr effect
G02B 7/00 - Mountings, adjusting means, or light-tight connections, for optical elements
A nonlinear crystal comprising a first end face and an opposing second end face is described. The first and second end faces are separated along an optical axis of the nonlinear crystal by a length in the range of 0.25 mm and 2 mm. Although the length of the nonlinear crystal results in a reduction in the nonlinear effects induced on an optical field propagating through the crystal it also provides for reduced deviation experienced by the generated optical field when the nonlinear crystal is rotated. Therefore, when the nonlinear crystals are incorporated within an enhancement cavity their reduced length allows for the deviation of the output field to be minimised by servo control electronics arranged to adjust a single cavity mirror. This significantly reduces the complexity, and thus expensive of the servo control electronics when compared to those employed with the prior art enhancement cavities.
A nonlinear crystal comprising a first end face and an opposing second end face is described. The first and second end faces are separated along an optical axis of the nonlinear crystal by a length in the range of 0.25 mm and 2 mm. Although the length of the nonlinear crystal results in a reduction in the nonlinear effects induced on an optical field propagating through the crystal it also provides for reduced deviation experienced by the generated optical field when the nonlinear crystal is rotated. Therefore, when the nonlinear crystals are incorporated within an enhancement cavity their reduced length allows for the deviation of the output field to be minimised by servo control electronics arranged to adjust a single cavity mirror. This significantly reduces the complexity, and thus expensive of the servo control electronics when compared to those employed with the prior art enhancement cavities.
A nonlinear crystal comprising a first curved face and an opposing second curved face is described. The first and second curved faces are arranged to provide the nonlinear crystal with rotational symmetry about at least one axis of the nonlinear crystal. The nonlinear crystal allows for frequency tuning of a generated optical field that is generated by propagating a fundamental optical field through the nonlinear crystal by rotation of the nonlinear crystal about an axis of rotation without any significant, or minimal, deviation being introduced to the generated optical field. These nonlinear crystals can therefore be incorporated into an external cavity frequency doubler or mixer without any need for the employment of optical compensation optics or servo control electronics to automatically realign the cavity mirrors
A nonlinear crystal comprising a first curved face and an opposing second curved face is described. The first and second curved faces are arranged to provide the nonlinear crystal with rotational symmetry about at least one axis of the nonlinear crystal. The nonlinear crystal allows for frequency tuning of a generated optical field that is generated by propagating a fundamental optical field through the nonlinear crystal by rotation of the nonlinear crystal about an axis of rotation without any significant, or minimal, deviation being introduced to the generated optical field. These nonlinear crystals can therefore be incorporated into an external cavity frequency doubler or mixer without any need for the employment of optical compensation optics or servo control electronics to automatically realign the cavity mirrors
A purging system for a laser system is described. The purging system comprising a cartridge that houses a desiccant material and which is configured for removable mounting with an enclosure of the laser system. The cartridge comprising a first mesh layer that provides a means for a fluid to flow to the desiccant material housed within the cartridge. The purging system further comprises a membrane located over the first mesh layer. The purging system therefore provides a mean for passively purging the laser system and so its operation does not require the employment of a pump. The employment of the removable cartridge also has the advantage that the downtimes of the laser system with which it is deployed are reduced during periods when it is required to dry or replace the desiccant material.
A method and apparatus for passively synchronising the repetition rate of two or more mode-locked lasers is described. The method and apparatus involve forming a first synchronising optical field (6) by separating a portion of an output field of a first mode-locked laser (2) and thereafter redirecting this synchronising optical field to form a driving signal for a second mode-locked laser (3). Employing these techniques results in systems with timing jitter of less than 1 fs. The method is independent of the wavelength and polarisation at which the mode-locked lasers operate and so is not limited to use with any particular type of mode-locked laser. Since the technique is passive it does not require the employment of electronics, variable time delay paths or additional non-linear optical crystals. Therefore, the method and apparatus are significantly less complex than those known in the art and are not power limited by additional non-linear optical processes. Part of the output (7) of the first mode-locked laser (2) is redirected via a beam splitter (9) and beam steering mirrors (11,12) and a half-wave plate (15) to a polariser (13) in the the beam line of the second mode-locked laser (3). The seeding and synchronising signal from the first mode-locked laser (2) may be perpendicularly polarized with respect to the polarization of the second mode-locked laser (3) and may have a different wavelength.
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 3/094 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
H01S 3/11 - Mode lockingQ-switchingOther giant-pulse techniques, e.g. cavity dumping
A method and apparatus for passively synchronising the repetition rate of two or more mode-locked lasers is described. The method and apparatus involve forming a first synchronising optical field (6) by separating a portion of an output field of a first mode-locked laser (2) and thereafter redirecting this synchronising optical field to form a driving signal for a second mode-locked laser (3). Employing these techniques results in systems with timing jitter of less than 1 fs. The method is independent of the wavelength and polarisation at which the mode-locked lasers operate and so is not limited to use with any particular type of mode-locked laser. Since the technique is passive it does not require the employment of electronics, variable time delay paths or additional non-linear optical crystals. Therefore, the method and apparatus are significantly less complex than those known in the art and are not power limited by additional non-linear optical processes. Part of the output (7) of the first mode-locked laser (2) is redirected via a beam splitter (9) and beam steering mirrors (11,12) and a half-wave plate (15) to a polariser (13) in the the beam line of the second mode-locked laser (3). The seeding and synchronising signal from the first mode-locked laser (2) may be perpendicularly polarized with respect to the polarization of the second mode-locked laser (3) and may have a different wavelength.
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
H01S 3/094 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
H01S 3/11 - Mode lockingQ-switchingOther giant-pulse techniques, e.g. cavity dumping
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
An electro-optic detector for detecting terahertz radiation comprising an electro-optic material through which the terahertz radiation passes; a probe for transmitting probe radiation into the electro-optic material; an optical arrangement for causing the probe radiation to make multiple passes through the electro-optic material and a radiation detector for detecting the probe radiation after the multiple passes are made.
An optical frequency mixing module is described that comprises a nonlinear medium for frequency mixing the photons of one or more input optical fields to generate an output optical field; a nonlinear medium tuner for automatically phase matching the nonlinear medium to the one or more input optical fields to select the wavelength of the output optical field generated by the nonlinear medium; and a first direction correcting optic. The position of the first direction correcting optic relative to the nonlinear medium is dependent upon the selected wavelength of the output optical field and therefore ensures that the position and angle of propagation of this field remains constant and independent of its wavelength of. The optical frequency mixing modules therefore provides a means for automatically selecting the wavelength of the output field with no deviation being imparted onto the position or angle of propagation of the output field.
An optical frequency mixing module is described that comprises a nonlinear medium for frequency mixing the photons of one or more input optical fields to generate an output optical field; a nonlinear medium tuner for automatically phase matching the nonlinear medium to the one or more input optical fields to select the wavelength of the output optical field generated by the nonlinear medium; and a first direction correcting optic. The position of the first direction correcting optic relative to the nonlinear medium is dependent upon the selected wavelength of the output optical field and therefore ensures that the position and angle of propagation of this field remains constant and independent of its wavelength of. The optical frequency mixing modules therefore provides a means for automatically selecting the wavelength of the output field with no deviation being imparted onto the position or angle of propagation of the output field.
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45.
Passively mode-locking semiconductor disk laser (SDL)
A passively mode-locking laser and corresponding method is described. The laser comprises a resonator (2) terminated by first (3) and second (4) mirrors and folded by a third (5) and fourth (6) mirror. The third mirror comprises a reflector (14) surmounted by a multilayer semiconductor gain medium (15) including at least one quantum well layer while the second mirror (4) comprises an intensity saturable mirror. The resonator is configured to provide a cross sectional area of an intra cavity resonating field on the intensity saturable mirror that is greater than or equal to a cross sectional area of the intra cavity resonating field on the multilayer semiconductor gain medium. This arrangement provides a passively mode-locking laser that exhibits increased stability when compared to those systems known in the art.
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
H01S 5/343 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser
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Lasers and laser systems not for medical use, namely, diode pumped solid state lasers; control apparatus for diode pumped solid state lasers, not for medical use; Internet enabled control apparatus for diode pumped solid state lasers, not for medical use; computer software for the control of non-medical use diode pumped solid state lasers Lasers and laser systems namely, diode pumped solid state lasers for medical, veterinary, surgical, and ophthalmic use; structural parts for diode pumped solid state lasers for medical, surgical, veterinary and ophthalmic use Installation, assembly, maintenance, and repair of lasers and laser systems, namely, diode pumped solid state lasers; advisory and consultancy services relating to the above Scientific consultancy, research and development in the field of diode pumped solid state lasers; scientific testing services in the field of diode pumped solid state lasers; scientific laboratory services; rental of scientific equipment and in particular lasers and laser systems, optics and optical systems; research, development and design services in the field of diode pumped solid state lasers, lasers and laser systems, optics and optical systems, and new products within these fields; calibration services relating to medical apparatus
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
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Scientific and measuring apparatus and instruments; Internet enabled scientific and measuring apparatus and instruments; lasers and laser systems; laser diodes; solid state lasers; control apparatus for lasers and laser systems; Internet enabled control apparatus for lasers and laser systems; Internet enabled control apparatus for optics and optical systems; optical apparatus and instruments; objectives, eye-pieces, recticles, focusing mechanisms, microscope bodies and barrels; diaphragms, shutters, optical tables and rails; optical component holders; mounts and positioning apparatus for optical components; vibration isolation apparatus, optical sources, optical components; lenses; optical condensers, mirrors, windows and flats; beam samplers, beam splitters; optical couplers, separators, and polarisers; electro-optical couplers, splitters, polarisers and modulators; prisms and optical filters; optical beam deflectors, optical beam detectors; parts and fittings for all of the aforesaid goods; computer software for the control of scientific and measuring apparatus and instruments; computer software for the control of optics and optical systems; leak testing and detection apparatus; microscopes; light sheet microscopes; biological microscopes; microscopes for medical use; apparatus and instruments for miscrooscopy; apparatus and instruments for light sheet fluorescence microscopy; apparatus and instruments for light sheet imaging; microscope condensers; microscope illuminating devices; reflectors and prisms for microscopes; microscope lenses and reflectors; parts and fittings for all the aforesaid goods. Medical imaging apparatus; lasers and laser systems for medical, veterinary, surgical, and opthalmic use; accessories for laser and laser systems for medical, surgical, veterinary and ophthalmic use; parts and fittings for all the aforesaid goods. Installation, assembly, maintenance, and repair of scientific and measuring apparatus and instruments and in particular microscopes, light sheet microscopes, lasers, laser systems, optics and optical systems; maintenance and repair of medical, surgical, veterinary and ophthalmic apparatus and instruments; assembly, maintenance and repair of laboratory equipment; advisory and consultancy services relating to the above. Scientific consultancy, research and development; scientific testing services; technological services; scientific laboratory services; rental of scientific equipment and in particular lasers and laser systems, optics and optical systems; research, development and design services all relating to science, technology, lasers and laser systems, optics and optical systems, and new products within these fields; research and development in the fields of microscopy and light sheet microscopy; provision of scientific information; biological research and analysis; biological laboratory services; calibration services relating to medical apparatus; design and development of medical, veterinary, surgical and biological diagnostic and screening apparatus and instruments; monitoring of scientific and measuring apparatus and instruments and in particular lasers and laser systems, optics and optical systems; advisory and consultancy services relating to the above.
A purging system for a laser system is described. The purging system comprising a cartridge that houses a desiccant material and which is configured for removable mounting with an enclosure of the laser system. The cartridge comprising a first mesh layer that provides a means for a fluid to flow to the desiccant material housed within the cartridge. The purging system further comprises a membrane located over the first mesh layer. The purging system therefore provides a mean for passively purging the laser system and so its operation does not require the employment of a pump. The employment of the removable cartridge also has the advantage that the downtimes of the laser system with which it is deployed are reduced during periods when it is required to dry or replace the desiccant material.
B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
B65D 81/26 - Adaptations for preventing deterioration or decay of contentsApplications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, fluids, e.g. exuded by contentsApplications of corrosion inhibitors or desiccators
H01S 3/036 - Means for obtaining or maintaining the desired gas pressure within the tube, e.g. by gettering or replenishingMeans for circulating the gas, e.g. for equalising the pressure within the tube
A purging system for a laser system is described. The purging system comprising a cartridge that houses a desiccant material and which is configured for removable mounting with an enclosure of the laser system. The cartridge comprising a first mesh layer that provides a means for a fluid to flow to the desiccant material housed within the cartridge. The purging system further comprises a membrane located over the first mesh layer. The purging system therefore provides a mean for passively purging the laser system and so its operation does not require the employment of a pump. The employment of the removable cartridge also has the advantage that the downtimes of the laser system with which it is deployed are reduced during periods when it is required to dry or replace the desiccant material.
B65D 81/26 - Adaptations for preventing deterioration or decay of contentsApplications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, fluids, e.g. exuded by contentsApplications of corrosion inhibitors or desiccators
H01S 3/036 - Means for obtaining or maintaining the desired gas pressure within the tube, e.g. by gettering or replenishingMeans for circulating the gas, e.g. for equalising the pressure within the tube
H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
H01S 3/109 - Frequency multiplication, e.g. harmonic generation
B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
B01D 53/00 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
An optical amplifier is described. The optical amplifier (1) comprises a semiconductor disk gain medium (2) including at least one quantum well layer (9) and a pump field source (17) for generating an optical pump field (3) for the semiconductor disk gain medium. The optical amplifier acts to generate an output optical field (5) from an input optical field (4) received by the optical amplifier and arranged to be incident upon the semiconductor disk gain medium. Employing a semiconductor disk gain medium within the optical amplifier allows it to be optically pumped and thus provided for increased stability and beam quality of the output optical field while allowing for the design of optical amplifiers which can operate across a broad range of wavelengths. The optical amplifier may be employed with continuous wave or pulsed input optical fields.
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
H01S 5/50 - Amplifier structures not provided for in groups
H01S 5/187 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only horizontal cavities, e.g. horizontal cavity surface-emitting lasers [HCSEL] using Bragg reflection
H01S 5/34 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
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(1) Scientific instruments, namely airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, and multiphoton light sheet fluorescence imaging systems, not relating to or being for use in the provision of opticians' services or ophthalmological services and not being ophthalmic instruments or goods for the treatment or surgery of the eyes; scientific instruments, namely apparatus for airy beam light sheet microscopes, for single photon light sheet fluorescence imaging systems, and for multiphoton light sheet fluorescence imaging systems, not relating to or being for use in the provision of opticians' services or ophthalmological services and not being ophthalmic instruments or goods for the treatment or surgery of the eyes; scientific instruments, namely lasers and laser systems for airy beam light sheet microscopes, for single photon light sheet fluorescence imaging systems, and for multiphoton light sheet fluorescence imaging systems, not relating to or being for use in the provision of opticians' services or ophthalmological services and not being ophthalmic instruments or goods for the treatment or surgery of the eyes; scientific instruments, namely control apparatus for airy beam light sheet microscopes, for single photon light sheet fluorescence imaging systems, and for multiphoton light sheet fluorescence imaging systems, not relating to or being for use in the provision of opticians' services or ophthalmological services and not being ophthalmic instruments or goods for the treatment or surgery of the eyes
(2) Airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, and multiphoton light sheet fluorescence imaging systems, for medical, veterinary and surgical use, not relating to or being for use in the provision of opticians' services or ophthalmological services and not being ophthalmic instruments or goods for the treatment or surgery of the eyes (1) Installation, assembly, maintenance, and repair of scientific instruments namely airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems, microscopes
(2) Scientific consultancy, research and development in the field of airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems; scientific testing services in the field of airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems; rental of scientific equipment and in particular airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems; research, development and design services in the field of airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems
(3) Laboratory research services and testing for medical, veterinary, surgical, and ophthalmic purposes using airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems, not being or relating to opticians services, ophthalmology or eye surgery including eye laser treatment or being services for the diagnosis or treatment of the eyes; medical, biological and clinical research using airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems, not being or relating to opticians services, ophthalmology or eye surgery including eye laser treatment or being services for the diagnosis or treatment of the eyes; rental of airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems for laboratory services and testing, not being or relating to opticians services, ophthalmology or eye surgery including eye laser treatment or being services for the diagnosis or treatment of the eyes
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Scientific instruments namely, airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems, microscopes; scientific instruments, namely, apparatus for airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems, microscopes; scientific instruments, namely, lasers and laser systems for airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems, microscopes; scientific instruments, namely, control apparatus for airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems, microscopes; parts and fittings for all the aforesaid goods; none of the abovementioned goods being for medical use and not being related to or for use in measuring the position or orientation of target objects or for the provision of opticians' services or ophthalmological services or being ophthalmic instruments or goods for the treatment or surgery of the eyes Installation, assembly, maintenance, and repair of scientific instruments namely airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems, microscopes; advisory and consultancy services relating to the above Scientific consultancy, research and development in the field of airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems; scientific testing services in the field airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems; rental of scientific equipment and in particular airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems; research, development and design services in the field of airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems Medical testing for diagnostic or treatment purposes using airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems; rental of airy beam light sheet microscopes, single photon light sheet fluorescence imaging systems, multiphoton light sheet fluorescence imaging systems for medical testing for diagnostic purposes; none of the abovementioned services being or relating to opticians services, ophthalmology or eye surgery including eye laser treatment or being services for the diagnosis or treatment of the eyes
A self mode locking laser and corresponding method is described. The laser comprises a resonator (2) terminated by first (3) and second (4) mirrors and folded by a third mirror (5). The third mirror comprises a reflector (15) surmounted by a multilayer semiconductor gain medium (16) that includes at least one quantum well layer and an optical Kerr lensing layer (20). A perturbator is also included that provides a means to induce a perturbation on an intensity of one or more cavity modes of the resonator. The pertubator is employed to induce a small perturbation on the intensity of the cavity modes of the resonator which is sufficient for the optical Kerr lensing layer to induce mode locking on the output field. The second mirror (4) comprises an intensity saturable mirror that provides a means for reducing the pulse widths of the generated output field e.g. to around 100 fs. A diamond heat spreader (20) is attached to the top of the half VCSEL gain medium (13) for improved cooling as well as representing the Kerr medium. Further folding mirrors (6-8) may be inserted to adjust the degree of astigmatism to be compensated for by the Kerr effect used for mode-locking.
H01S 5/34 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers
H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
H01S 3/094 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
H01S 3/0941 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a semiconductor laser, e.g. of a laser diode
H01S 5/04 - Processes or apparatus for excitation, e.g. pumping
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
An electro-optic detector for detecting terahertz radiation comprising an electro-optic material through which the terahertz radiation passes; a probe for transmitting probe radiation into the electro-optic material; an optical arrangement for causing the probe radiation to make multiple passes through the electro-optic material and a radiation detector for detecting the probe radiation after the multiple passes are made.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Scientific and measuring apparatus and instruments; microscopes; light sheet microscopes; biological microscopes; microscopes for medical use; apparatus and instruments for microscopy; apparatus and instruments for light sheet fluorescence microscopy; apparatus and instruments for light sheet imaging; microscope condensers; microscope illuminating devices; reflectors and prisms for microscopes; microscope lenses and reflectors; lasers and laser systems; laser diodes; solid state lasers; control apparatus for lasers and laser systems; objectives, recticles, focusing mechanisms, microscope bodies and barrels; diaphragms, shutters, optical tables and rails; optical component holders; mounts and positioning apparatus for optical components; vibration isolation apparatus, optical sources, optical condensers, mirrors, windows and flats; beam samplers, beam splitters; optical couplers, separators, and polarisers; electro-optical couplers, splitters, polarisers and modulators; prisms and optical filters; optical beam deflectors, optical beam detectors; parts and fittings for all the aforesaid goods; none of the abovementioned goods relating to or being for use in the provision of opticians’ services or ophthalmological services or being ophthalmic instruments or goods for the treatment or surgery of the eyes. Medical, surgical and veterinary apparatus and instruments; diagnostic, examination and monitoring equipment; medical imaging apparatus; lasers and laser systems for medical, veterinary, surgical use; accessories for laser and laser systems for medical, surgical, veterinary use; parts and fittings for all the aforesaid goods; none of the abovementioned goods relating to or being for use in the provision of opticians’ services or ophthalmological services or being ophthalmic instruments or goods for the treatment or surgery of the eyes. Installation, assembly, maintenance, and repair of scientific and measuring apparatus and instruments and in particular microscopes, light sheet microscopes, lasers, laser systems; maintenance and repair of medical, surgical, veterinary apparatus and instruments; assembly, maintenance and repair of laboratory equipment; advisory and consultancy services relating to the above. Scientific consultancy, research and development; scientific testing services; technological services; scientific laboratory services; rental of scientific equipment; research and development in the fields of microscopy and light sheet microscopy; research and development in the fields of lasers; research, development and design of microscopes, laser systems, optics and optical systems, and new products within these fields; provision of scientific information; biological research and analysis; biological laboratory services; calibration services relating to medical apparatus; design and development of medical, veterinary, surgical and biological diagnostic and screening apparatus and instruments; advisory and consultancy services relating to the above. Medical services; medical and veterinary testing; medical and veterinary laboratory services; medical, biological and clinical research; medical and veterinary diagnostic services; surgical diagnostic services; medical imaging; rental of medical and surgical equipment; rental of equipment for medical and veterinary purposes; consultancy and advisory services relating to the above; none of the abovementioned services relating to or being for use in the provision of opticians’ services or ophthalmological services or being ophthalmic instruments or goods for the treatment or surgery of the eyes.
57.
Method and apparatus for mounting a semiconductor disk laser (SDL)
The present invention describes a method and apparatus for mounting a semiconductor disc laser (SDL). In particular there is described a cooling apparatus assembly (12) for mounting the semiconductor disc laser (1) the cooling apparatus assembly comprising a crystalline heat spreader (8) made of diamond, sapphire or SiC and optically contacted to the SDL (1). The apparatus further comprises a heatsink (13) made of copper and a recess (16) located on a first surface (15) of the heatsink. A pliable filler material (17) which may be In or an In alloy is provided within the recess (16) such that when a sealing plate (19) is fastened to the heatsink the SDL (1) is hermetically sealed within the recess. Hermetically sealing the SDL within the recess is found to significantly increase the lifetime of the device comprising the SDL. The heat sink (13) may be water cooled with pipes (14) delivering the water. In case the sealing plate (19) is made from for example Invar, it has an aperture (20).
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
An apparatus and a method monitor fluid loss from one or more casks during a maturation process. The apparatus comprises a multi-pass absorption cell arranged in fluid communication with one or more fluid conduits, a pump and a monitoring system. The pump and fluid conduits transport a fluid sample (e.g. vapor sample) from a perimeter of the one or more casks to the multi-pass absorption cell. The monitoring system detects and identifies fluid within the multi-pass absorption cell.
C12H 1/22 - Ageing or ripening by storing, e.g. lagering of beer
G01N 21/3504 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
A method and apparatus for mounting optical components is described. The apparatus (1) is suitable for mounting multiple optical components (2) and comprises a baseplate (3) having opposing first (4) and second (5) surfaces. Recesses or apertures (7) are formed within the baseplate and are located upon the first or second surfaces so as to define thermally activated optic mounting areas. Pillars (13) are then located within the thermally activated optic mounting areas and these provide a means for attaching the optical component to the baseplate (3). The employment of the recesses or apertures act to significantly reduce the thermal conduction throughout the baseplate. As a result preferential heating can be provided to the one or more thermally activated optic mounting areas while maintaining the baseplate with a desired mechanical strength. The optical mounting apparatus exhibits a high thermal stability thus making the apparatus ideally suited for use within commercial optical system.
B23K 1/00 - Soldering, e.g. brazing, or unsoldering
G02B 7/00 - Mountings, adjusting means, or light-tight connections, for optical elements
G02B 6/42 - Coupling light guides with opto-electronic elements
G02B 7/02 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses
G02B 7/182 - Mountings, adjusting means, or light-tight connections, for optical elements for prismsMountings, adjusting means, or light-tight connections, for optical elements for mirrors for mirrors
An optical amplifier is described. The optical amplifier (1) comprises a semiconductor disk gain medium (2) including at least one quantum well layer (9) and a pump field source (17) for generating an optical pump field (3) for the semiconductor disk gain medium. The optical amplifier acts to generate an output optical field (5) from an input optical field (4) received by the optical amplifier and arranged to be incident upon the semiconductor disk gain medium. Employing a semiconductor disk gain medium within the optical amplifier allows it to be optically pumped and thus provided for increased stability and beam quality of the output optical field while allowing for the design of optical amplifiers which can operate across a broad range of wavelengths. The optical amplifier may be employed with continuous wave or pulsed input optical fields.
H01S 5/04 - Processes or apparatus for excitation, e.g. pumping
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
H01S 5/50 - Amplifier structures not provided for in groups
An optical amplifier is described. The optical amplifier (1) comprises a semiconductor disk gain medium (2) including at least one quantum well layer (9) and a pump field source (17) for generating an optical pump field (3) for the semiconductor disk gain medium. The optical amplifier acts to generate an output optical field (5) from an input optical field (4) received by the optical amplifier and arranged to be incident upon the semiconductor disk gain medium. Employing a semiconductor disk gain medium within the optical amplifier allows it to be optically pumped and thus provided for increased stability and beam quality of the output optical field while allowing for the design of optical amplifiers which can operate across a broad range of wavelengths. The optical amplifier may be employed with continuous wave or pulsed input optical fields.
H01S 5/50 - Amplifier structures not provided for in groups
H01S 5/04 - Processes or apparatus for excitation, e.g. pumping
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
A passively mode-locking laser and corresponding method is described. The laser comprises a resonator (2) terminated by first (3) and second (4) mirrors and folded by a third (5) and fourth (6) mirror. The third mirror comprises a reflector (14) surmounted by a multilayer semiconductor gain medium (15) including at least one quantum well layer while the second mirror (4) comprises an intensity saturable mirror. The resonator is configured to provide a cross sectional area of an intra cavity resonating field on the intensity saturable mirror that is greater than or equal to a cross sectional area of the intra cavity resonating field on the multilayer semiconductor gain medium. This arrangement provides a passively mode-locking laser that exhibits increased stability when compared to those systems known in the art.
A passively mode-locking laser and corresponding method is described. The laser comprises a resonator (2) terminated by first (3) and second (4) mirrors and folded by a third (5) and fourth (6) mirror. The third mirror comprises a reflector (14) surmounted by a multilayer semiconductor gain medium (15) including at least one quantum well layer while the second mirror (4) comprises an intensity saturable mirror. The resonator is configured to provide a cross sectional area of an intra cavity resonating field on the intensity saturable mirror that is greater than or equal to a cross sectional area of the intra cavity resonating field on the multilayer semiconductor gain medium. This arrangement provides a passively mode-locking laser that exhibits increased stability when compared to those systems known in the art.
A self mode locking laser and corresponding method is described. The laser comprises a resonator (2) terminated by first (3) and second (4) mirrors and folded by a third mirror (5). The third mirror comprises a reflector (15) surmounted by a multilayer semiconductor gain medium (16) that includes at least one quantum well layer and an optical Kerr lensing layer (20). A perturbator is also included that provides a means to induce a perturbation on an intensity of one or more cavity modes of the resonator. The pertubator is employed to induce a small perturbation on the intensity of the cavity modes of the resonator which is sufficient for the optical Kerr lensing layer to induce mode locking on the output field. The second mirror (4) comprises an intensity saturable mirror that provides a means for reducing the pulse widths of the generated output field e.g. to around 100 fs. A diamond heat spreader (20) is attached to the top of the half VCSEL gain medium (13) for improved cooling as well as representing the Kerr medium. Further folding mirrors (6-8) may be inserted to adjust the degree of astigmatism to be compensated for by the Kerr effect used for mode-locking.
H01S 3/08 - Construction or shape of optical resonators or components thereof
H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
H01S 3/094 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
H01S 3/0941 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a semiconductor laser, e.g. of a laser diode
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
H01S 5/04 - Processes or apparatus for excitation, e.g. pumping
65.
IMPROVED SELF MODE-LOCKING SEMICONDUCTOR DISK LASER (SDL)
A self mode locking laser and corresponding method is described. The laser comprises a resonator terminated by first and second mirrors and folded by a third mirror. The third mirror comprises a reflector surmounted by a multilayer semiconductor gain medium that includes at least one quantum well layer and an optical Kerr lensing layer. A perturbator is also included that provides a means to induce a perturbation on an intensity of one or more cavity modes of the resonator. The perturbator is employed to induce a small perturbation on the intensity of the cavity modes of the resonator which is sufficient for the optical Kerr lensing layer to induce mode locking on the output field. The second mirror comprises an intensity saturable mirror that provides a means for reducing the pulse widths of the generated output field e.g. to around 100 fs.
b). When incorporated within a laser cavity the described system and methodology can be used to lock and scan the output of the laser cavity while providing the laser output with a reduced linewidth.
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
H01S 3/106 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
H01S 3/137 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling devices placed within the cavity for stabilising of frequency
H01S 3/139 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the mutual position or the reflecting properties of the reflectors of the cavity
H01S 3/08 - Construction or shape of optical resonators or components thereof
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/105 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity
G02B 26/00 - Optical devices or arrangements for the control of light using movable or deformable optical elements
H01S 3/139 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the mutual position or the reflecting properties of the reflectors of the cavity
H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
H01S 3/106 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
The present invention describes a mode locking semiconductor disk laser (SDL). The laser comprises a resonator terminated by first and second mirrors (6,7) and folded by a third mirror. The third mirror comprising a semiconductor disk laser (8) suitable for generating a resonator field comprising a predetermined central wavelength AO while the second mirror comprising an intensity saturable mirror (7) suitable for mode locking the resonator field at the predetermined wavelength. The reflectivity of the of the resonator at the central wavelength AO is reduced by shifting the reflectivity profiles of the first and or second mirrors to wavelength shorter than the predetermined wavelength so as to suppress gain at wavelengths longer than the central wavelength AO. By mismatching the reflectivity profile (32) of the second mirror (7) to that of the desired output wavelength (3) provides a stable mode locked laser with significantly reduced noise. The SDL may comprise a DBR with a reflectivity profile (1) having a peak wavelength corresponding to the laser emission (3). The gain medium comprises a RPG structure of the active region resulting in a Fabry-Perot with a FSR as indicated by the corresponding reflectivity profile (2). The peak reflection of the DBR of the saturable absorber mirror may be shifted towards shorter wavelengths with respect to the laser emission by an amount corresponding to one half to one FSR of said RPG active region.
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
H01S 3/08 - Construction or shape of optical resonators or components thereof
H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
H01S 3/0941 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a semiconductor laser, e.g. of a laser diode
H01S 5/04 - Processes or apparatus for excitation, e.g. pumping
H01S 5/12 - Construction or shape of the optical resonator the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers
The present invention describes a mode locking semiconductor disk laser (SDL). The laser comprises a resonator terminated by first and second mirrors (6,7) and folded by a third mirror. The third mirror comprising a semiconductor disk laser (8) suitable for generating a resonator field comprising a predetermined central wavelength AO while the second mirror comprising an intensity saturable mirror (7) suitable for mode locking the resonator field at the predetermined wavelength. The reflectivity of the of the resonator at the central wavelength AO is reduced by shifting the reflectivity profiles of the first and or second mirrors to wavelength shorter than the predetermined wavelength so as to suppress gain at wavelengths longer than the central wavelength AO. By mismatching the reflectivity profile (32) of the second mirror (7) to that of the desired output wavelength (3) provides a stable mode locked laser with significantly reduced noise. The SDL may comprise a DBR with a reflectivity profile (1) having a peak wavelength corresponding to the laser emission (3). The gain medium comprises a RPG structure of the active region resulting in a Fabry-Perot with a FSR as indicated by the corresponding reflectivity profile (2). The peak reflection of the DBR of the saturable absorber mirror may be shifted towards shorter wavelengths with respect to the laser emission by an amount corresponding to one half to one FSR of said RPG active region.
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
H01S 5/04 - Processes or apparatus for excitation, e.g. pumping
The invention provides a maturation apparatus and associated method that reduces fluid loss from one or more casks during a maturation process by sealably enclosing the casks in an intermodal container. The intermodal container provides an expansion volume to receive fluid vapour from the casks which assists in reducing product loss via evaporation and in reducing the problematic effects associated with fungi that often form in the vicinity of a distillery or other spirit maturation facilities. The maturation apparatus may further comprise a vapour detection system and or an environmental control system. The use of intermodal containers within the maturation apparatus provides a number of significant advantages for the transportation and storage of the casks during the maturation process.
The present invention describes a self mode locking laser and a method for self mode locking a laser. The laser (1) comprises a resonator terminated by first (3) and second (4) mirrors and folded by a third mirror (5). The third mirror comprises a single distributed Bragg reflector (17) upon which is mounted a multilayer semiconductor gain medium (18) and which includes at least one quantum well layer and an optical Kerr lensing layer (22). Self mode locking may be achieved by configuring the laser resonator such that the lensing effect of the Kerr lensing layer acts to reduce an astigmatism deliberately introduced to the cavity mode. The self mode locking of the laser may be further enhanced by selecting the length of the resonator such that a round trip time of a cavity mode is matched with an upper-state lifetime of one or more semiconductor carriers located within the gain medium.
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
The present invention describes a self mode locking laser and a method for self mode locking a laser. The laser (1) comprises a resonator terminated by first (3) and second (4) mirrors and folded by a third mirror (5). The third mirror comprises a single distributed Bragg reflector (17) upon which is mounted a multilayer semiconductor gain medium (18) and which includes at least one quantum well layer and an optical Kerr lensing layer (22). Self mode locking may be achieved by configuring the laser resonator such that the lensing effect of the Kerr lensing layer acts to reduce an astigmatism deliberately introduced to the cavity mode. The self mode locking of the laser may be further enhanced by selecting the length of the resonator such that a round trip time of a cavity mode is matched with an upper-state lifetime of one or more semiconductor carriers located within the gain medium.
H01S 5/34 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers
H01S 3/08 - Construction or shape of optical resonators or components thereof
H01S 5/04 - Processes or apparatus for excitation, e.g. pumping
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
H01S 3/094 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
73.
METHOD AND APPARATUS FOR MOUNTING A SEMICONDUCTOR DISK LASER (SDL)
The present invention describes a method and apparatus for mounting a semiconductor disc laser (SDL). In particular there is described a cooling apparatus assembly for mounting the semiconductor disc laser (SDL) the cooling apparatus assembly comprising a crystalline heat spreader optically contacted to the SDL. The apparatus further comprises a heatsink and a recess located on a first surface of the heatsink. A pliable filler material is provided within the recess such that when a sealing plate is fastened to the heatsink the SDL is hermetically sealed within the recess. Hermitically sealing the SDL within the recess is found to significantly increase the lifetime of the device comprising the SDL.
H01S 5/02218 - Material of the housingsFilling of the housings
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
74.
METHOD AND APPARATUS FOR MOUNTING A SEMICONDUCTOR DISK LASER (SDL)
The present invention describes a method and apparatus for mounting a semiconductor disc laser (SDL). In particular there is described a cooling apparatus assembly (12) for mounting the semiconductor disc laser (1) the cooling apparatus assembly comprising a crystalline heat spreader (8) made of diamond, sapphire or SiC and optically contacted to the SDL (1). The apparatus further comprises a heatsink (13) made of copper and a recess (16) located on a first surface (15) of the heatsink. A pliable filler material (17) which may be In or an In alloy is provided within the recess (16) such that when a sealing plate (19) is fastened to the heatsink the SDL (1) is hermetically sealed within the recess. Hermetically sealing the SDL within the recess is found to significantly increase the lifetime of the device comprising the SDL. The heat sink (13) may be water cooled with pipes (14) delivering the water. In case the sealing plate (19) is made from for example Invar, it has an aperture (20).
H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
The invention provides an apparatus and a method to monitor fluid loss from one or more casks (2) during a maturation process. The apparatus (1) comprises a multi-pass absorption cell (4) arranged in fluid communication with one or more fluid conduits (5) and a pump (8), and a monitoring system (12). The pump (8) and fluid conduits (5) provide a means for transporting a fluid sample (e.g. a vapour sample) to the multi-pass absorption cell (4). The monitoring system (12) provides a means for detecting and identifying fluid within the multi-pass absorption cell (4).
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
C12H 1/22 - Ageing or ripening by storing, e.g. lagering of beer
G01N 1/22 - Devices for withdrawing samples in the gaseous state
The invention provides an apparatus and a method to monitor fluid loss from one or more casks (2) during a maturation process. The apparatus (1) comprises a multi-pass absorption cell (4) arranged in fluid communication with one or more fluid conduits (5) and a pump (8), and a monitoring system (12). The pump (8) and fluid conduits (5) provide a means for transporting a fluid sample (e.g. a vapour sample) to the multi-pass absorption cell (4). The monitoring system (12) provides a means for detecting and identifying fluid within the multi-pass absorption cell (4).
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
C12H 1/22 - Ageing or ripening by storing, e.g. lagering of beer
G01N 1/22 - Devices for withdrawing samples in the gaseous state
A method and apparatus for mounting optical components is described. The apparatus (1) is suitable for mounting multiple optical components (2) and comprises a baseplate (3) having opposing first (4) and second (5) surfaces. Recesses or apertures (7) are formed within the baseplate and are located upon the first or second surfaces so as to define thermally activated optic mounting areas. Pillars (13) are then located within the thermally activated optic mounting areas and these provide a means for attaching the optical component to the baseplate (3). The employment of the recesses or apertures act to significantly reduce the thermal conduction throughout the baseplate. As a result preferential heating can be provided to the one or more thermally activated optic mounting areas while maintaining the baseplate with a desired mechanical strength. The optical mounting apparatus exhibits a high thermal stability thus making the apparatus ideally suited for use within commercial optical system.
A method and apparatus for mounting optical components is described. The apparatus (1) is suitable for mounting multiple optical components (2) and comprises a baseplate (3) having opposing first (4) and second (5) surfaces. Recesses or apertures (7) are formed within the baseplate and are located upon the first or second surfaces so as to define thermally activated optic mounting areas. Pillars (13) are then located within the thermally activated optic mounting areas and these provide a means for attaching the optical component to the baseplate (3). The employment of the recesses or apertures act to significantly reduce the thermal conduction throughout the baseplate. As a result preferential heating can be provided to the one or more thermally activated optic mounting areas while maintaining the baseplate with a desired mechanical strength. The optical mounting apparatus exhibits a high thermal stability thus making the apparatus ideally suited for use within commercial optical system.
The invention provides an apparatus and a method that reduces fluid loss from a cask during a maturation process by sealably enclosing the cask in a vessel that provides an expansion volume to receive fluid vapor from the cask, a monitoring system and a method that monitors fluid loss from a cask during a maturation process using a light source and a detector to determine the presence of fluid vapor in the vicinity of the cask, a corresponding system for controlling a maturation process in which environmental conditions are controlled, and a cask leak testing system and method making use of the above.
C12H 1/22 - Ageing or ripening by storing, e.g. lagering of beer
G01N 21/3504 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
An M2 value beam profiling apparatus and method is described. The M2 value beam profiler comprises an optical axis defined by a focussing lens assembly and a detector, wherein the focussing lens acts to create an artificial waist within an optical field propagating along the optical axis. The beam profiler also comprises a multiple blade assembly having a first set of blades located at an artificial waist position and a second set of blades longitudinally separated along the optical axis from the artificial waist position. The multiple blade assembly therefore provides a means for selectively passing the blades through the location of the optical axis. Employing these measured widths allows for the M2 value of the optical field to be determined.
A method and system for characterising a hydrocarbon fluid (2) is described. The method involves exposing the hydrocarbon fluid to an output field generated by a mid-infrared laser source (4). The wavelength of the output field is then scanned and the field is scanned over an area of the hydrocarbon fluid so allowing for the absorption of the output field by the hydrocarbon fluid to be measured. From this measured data a spectral profile or fingerprint (9) of the hydrocarbon fluid can be produced. This spectral profile or fingerprint of the hydrocarbon fluid can then be used to identify the source of the hydrocarbon fluid or monitor for the presence of contaminants or foreign fluids entering the hydrocarbon fluid. The method and system finds particular application for real time monitoring of a hydrocarbon production flow.
G01N 21/39 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
82.
METHOD AND APPARATUS FOR LOCKING AND SCANNING THE OUTPUT FREQUENCY FROM A LASER CAVITY
A tunable reference cavity (3) with two independently controllable mirrors (15, 16) is disclosed. The mirrors are mounted on respective piezoelectric crystals (18, 19) so that thermal expansion of the piezoelectric crystals moves the cavity mirrors in the same direction along a longitudinal axis of the reference cavity thereby reducing a change of the cavity length. Also disclosed is a system for locking and scanning the output of a laser cavity (2). An error signal is generated between an output of the laser cavity (28) and the transmission (28) of the laser through the external reference cavity (3). A dual piezo-actuated mirror (6b) permits processing of the error signal (26) with separate signal processing circuits (29a, 29b) used to provide an electrical feedback signal to the dual piezoelectric crystal (22, 23b).
H01S 3/139 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the mutual position or the reflecting properties of the reflectors of the cavity
G02B 26/00 - Optical devices or arrangements for the control of light using movable or deformable optical elements
H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
H01S 3/105 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity
H01S 3/106 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
83.
METHOD AND APPARATUS FOR LOCKING AND SCANNING THE OUTPUT FREQUENCY FROM A LASER CAVITY
A system and method that can be employed to lock and scan the output of a laser cavity (2) is described. The system and method involves the use of a signal generator for generating an error signal between an output of the laser cavity (28) and the transmission (28) of the laser through a tunable external reference cavity (3). A dual piezo-actuated mirror (6b) permits processing of the error signal (26) with separate signal processing circuits (29a, 29b) used to provide an electrical feedback signal to the two piezoelectric crystals (22, 23b). When incorporated within a laser cavity the described system and methodology can be used to lock and scan the output of the laser cavity while providing the laser output with a reduced linewidth.
H01S 3/139 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the mutual position or the reflecting properties of the reflectors of the cavity
G02B 26/00 - Optical devices or arrangements for the control of light using movable or deformable optical elements
H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
H01S 3/105 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity
H01S 3/106 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
84.
METHOD AND APPARATUS FOR LOCKING AND SCANNING THE OUTPUT FREQUENCY FROM A LASER CAVITY
A system and method that can be employed to lock and scan the output of a laser cavity (2) is described. The system and method involves the use of a signal generator for generating an error signal between an output of the laser cavity (28) and the transmission (28) of the laser through a tunable external reference cavity (3). A dual piezo-actuated mirror (6b) permits processing of the error signal (26) with separate signal processing circuits (29a, 29b) used to provide an electrical feedback signal to the two piezoelectric crystals (22, 23b). When incorporated within a laser cavity the described system and methodology can be used to lock and scan the output of the laser cavity while providing the laser output with a reduced linewidth.
H01S 3/139 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the mutual position or the reflecting properties of the reflectors of the cavity
G02B 26/00 - Optical devices or arrangements for the control of light using movable or deformable optical elements
H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
H01S 3/105 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity
H01S 3/106 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
85.
METHOD AND APPARATUS FOR LOCKING AND SCANNING THE OUTPUT FREQUENCY FROM A LASER CAVITY
A tunable reference cavity (3) with two independently controllable mirrors (15, 16) is disclosed. The mirrors are mounted on respective piezoelectric crystals (18, 19) so that thermal expansion of the piezoelectric crystals moves the cavity mirrors in the same direction along a longitudinal axis of the reference cavity thereby reducing a change of the cavity length. Also disclosed is a system for locking and scanning the output of a laser cavity (2). An error signal is generated between an output of the laser cavity (28) and the transmission (28) of the laser through the external reference cavity (3). A dual piezo-actuated mirror (6b) permits processing of the error signal (26) with separate signal processing circuits (29a, 29b) used to provide an electrical feedback signal to the dual piezoelectric crystal (22, 23b).
H01S 3/139 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the mutual position or the reflecting properties of the reflectors of the cavity
G02B 26/00 - Optical devices or arrangements for the control of light using movable or deformable optical elements
H01S 3/081 - Construction or shape of optical resonators or components thereof comprising three or more reflectors
H01S 3/105 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity
H01S 3/106 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
The present invention describes a self mode locking laser and a method for self mode locking a laser. The laser (1) comprises a resonator terminated by first (3) and second (4) mirrors and folded by a third mirror (5). The third mirror comprises a single distributed Bragg reflector (17) upon which is mounted a multilayer semiconductor gain medium (18) and which includes at least one quantum well layer and an optical Kerr lensing layer (22). Self mode locking may be achieved by configuring the laser resonator such that the lensing effect of the Kerr lensing layer acts to reduce an astigmatism deliberately introduced to the cavity mode. The self mode locking of the laser may be further enhanced by selecting the length of the resonator such that a round trip time of a cavity mode is matched with an upper- state lifetime of one or more semiconductor carriers located within the gain medium.
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
The present invention describes a self mode locking laser and a method for self mode locking a laser. The laser (1) comprises a resonator terminated by first (3) and second (4) mirrors and folded by a third mirror (5). The third mirror comprises a single distributed Bragg reflector (17) upon which is mounted a multilayer semiconductor gain medium (18) and which includes at least one quantum well layer and an optical Kerr lensing layer (22). Self mode locking may be achieved by configuring the laser resonator such that the lensing effect of the Kerr lensing layer acts to reduce an astigmatism deliberately introduced to the cavity mode. The self mode locking of the laser may be further enhanced by selecting the length of the resonator such that a round trip time of a cavity mode is matched with an upper- state lifetime of one or more semiconductor carriers located within the gain medium.
H01S 3/11 - Mode lockingQ-switchingOther giant-pulse techniques, e.g. cavity dumping
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
The present invention describes a self mode locking laser and a method for self mode locking a laser. The laser (1) comprises a resonator terminated by first (3) and second (4) mirrors and folded by a third mirror (5). The third mirror comprises a single distributed Bragg reflector (17) upon which is mounted a multilayer semiconductor gain medium (18) and which includes at least one quantum well layer and an optical Kerr lensing layer (22). Self mode locking may be achieved by configuring the laser resonator such that the lensing effect of the Kerr lensing layer acts to reduce an astigmatism deliberately introduced to the cavity mode. The self mode locking of the laser may be further enhanced by selecting the length of the resonator such that a round trip time of a cavity mode is matched with an upper- state lifetime of one or more semiconductor carriers located within the gain medium.
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
The present invention describes a self mode locking laser and a method for self mode locking a laser. The laser (1) comprises a resonator terminated by first (3) and second (4) mirrors and folded by a third mirror (5). The third mirror comprises a single distributed Bragg reflector (17) upon which is mounted a multilayer semiconductor gain medium (18) and which includes at least one quantum well layer and an optical Kerr lensing layer (22). Self mode locking may be achieved by configuring the laser resonator such that the lensing effect of the Kerr lensing layer acts to reduce an astigmatism deliberately introduced to the cavity mode. The self mode locking of the laser may be further enhanced by selecting the length of the resonator such that a round trip time of a cavity mode is matched with an upper- state lifetime of one or more semiconductor carriers located within the gain medium.
H01S 3/11 - Mode lockingQ-switchingOther giant-pulse techniques, e.g. cavity dumping
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
A method of optimizing parametric gain in a nonlinear optical crystal that in response to application of a pump beam generates through a parametric generation process signal and idler beams, wherein the signal beam is non-collinear with the pump beam and the signal beam is subject to absorption due to the nonlinear material, the method involving shaping the pump beam to have an elliptical cross section, wherein the method further involves determining the width w of the pump beam depending on the absorption co-efficient of the optical crystal.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
Goods & Services
Scientific apparatus, namely, Ti-sapphire lasers not for medical use; infrared lasers not for medical use; [ terahertz lasers not for medical use; ] femtosecond and picosecond lasers not for medical use; diode drivers, temperature controllers, photodiode monitors, electronic data-loggers, [ external cavity frequency doublers and actuator drivers, all specially designed for use with lasers, not for medical use; ] lasers, not for medical use; [ laser diodes; ] solid state lasers not for medical use; electronic control apparatus for lasers, not for medical use; [ electronic apparatus for controlling lasers, not for medical use, via Internet or ethernet; electronic control apparatus for lasers, not for medical use, which can be operated remotely via the Internet; electronic control apparatus for optics, namely, for optical lenses which can be operated remotely via the Internet; optical lenses for use with lasers, not for medical use; reticles for optical lenses, focusing mechanisms for lasers, diaphragms, shutters, optical tables and rails, all specially designed for lasers not for medical use; optical component holders, namely, holders specially designed for optical lenses, optical fibres; diaphragms, shutters, reticles and diodes; mounts and positioning apparatus specially designed for lasers, optical lenses, optical fibres, diaphragms, shutters, reticles and diodes, not for medical use; vibration isolators for controlling vibrations in lasers not for medical use; ] optical sources, namely, lasers and laser diodes not for medical use; [ optical components, namely, optical fibres; optical condensers, optical mirrors, optical windows, optical flats for use with lasers not for medical use; optical flats in the nature of optical lenses; beam samplers, namely, devices for sampling laser beams, not for medical use; beam splitters, namely, devices for splitting laser beams, not for medical use; optical couplers, separators, and polarisers, all specially designed for use with lasers, not for medical use; electro-optical couplers, splitters, polarisers and modulators all specially designed for use with lasers, not for medical use; prisms and optical filters; optical beam deflectors and optical beam detectors both specially designed for use with lasers, not for medical use; ] computer software for controlling lasers, not for medical use; computer software for the control of lasers and laser systems; computer software for the control of optics and optical systems Lasers for medical, surgical, and ophthalmic use [ ; structural parts of laser and laser systems for medical, surgical and ophthalmic use ]
92.
Optical parametric generator based on a slant-stripe periodically poled nonlinear material with optimized lateral output coupling of a terahertz signal
An optical parametric device comprising a slant-stripe periodically poled nonlinear material that is operable to generate signal in response to interaction with a pump wave, the non-linear interaction being such that the pump and idler waves are collinear and the signal wave is non-collinear relative to the pump and idler waves, wherein the slant-stripe non-linear material is able to generate two idler waves and two signal waves, and the device is adapted to allow for the selection and output coupling of a required one of the two signal waves.
The invention provides an apparatus and a method that reduces fluid loss from a cask during a maturation process by sealably enclosing the cask in a vessel that provides an expansion volume to receive fluid vapour from the cask, a monitoring system and a method that monitors fluid loss from a cask during a maturation process using a light source and a detector to determine the presence of fluid vapour in the vicinity of the cask, a corresponding system for controlling a maturation process in which environmental conditions are controlled, and a cask leak testing system and method making use of the above.
C12H 1/22 - Ageing or ripening by storing, e.g. lagering of beer
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
The invention provides an apparatus and a method that reduces fluid loss from a cask during a maturation process by sealably enclosing the cask in a vessel that provides an expansion volume to receive fluid vapour from the cask, a monitoring system and a method that monitors fluid loss from a cask during a maturation process using a light source and a detector to determine the presence of fluid vapour in the vicinity of the cask, a corresponding system for controlling a maturation process in which environmental conditions are controlled, and a cask leak testing system and method making use of the above.
C12H 1/22 - Ageing or ripening by storing, e.g. lagering of beer
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific and measuring apparatus and instruments; internet
enabled scientific and measuring apparatus and instruments;
lasers and laser systems; laser diodes; solid state lasers;
control apparatus for lasers and laser systems; internet
enabled control apparatus for lasers and laser systems;
internet enabled control apparatus for optics and optical
systems; optical apparatus and instruments; objectives,
eye-pieces, reticles, focusing mechanisms, microscope bodies
and barrels; diaphragms, shutters, optical tables and rails;
optical component holders; mounts and positioning apparatus
for optical components; vibration isolation apparatus,
optical sources, optical components; lenses; optical
condensers, mirrors, windows and flats; beam samplers, beam
splitters; optical couplers, separators, and polarisers;
electro-optical couplers, splitters, polarisers and
modulators; prisms and optical filters; optical beam
deflectors, optical beam detectors; parts and fittings for
all of the aforesaid goods; computer software; computer
software for the control of scientific and measuring
apparatus and instruments; computer software for the control
of lasers and laser systems; computer software for the
control of optics and optical systems. Lasers and laser systems for medical, surgical, and
ophthalmic use; components of laser and laser systems for
medical, surgical and ophthalmic use. Installation, assembly, maintenance, and repair of
scientific and measuring apparatus and instruments and in
particular lasers and laser systems, optics and optical
systems. Research, development and design services all relating to
science, technology, lasers and laser systems, optics and
optical systems, and new products within these fields;
rental and leasing of scientific and measuring apparatus and
instruments and in particular lasers and laser systems,
optics and optical systems; monitoring of scientific and
measuring apparatus and instruments and in particular lasers
and laser systems, optics and optical systems; installation,
maintenance, monitoring and repair of computer software.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
Goods & Services
Scientific and measuring apparatus and instruments; Internet enabled scientific and measuring apparatus and instruments; lasers and laser systems; laser diodes; solid state lasers; control apparatus for lasers and laser systems; Internet enabled control apparatus for lasers and laser systems; Internet enabled control apparatus for optics and optical systems; optical apparatus and instruments; objectives, eye-pieces, reticles, focusing mechanisms, microscope bodies and barrels; diaphragms, shutters, optical tables and rails; optical component holders; mounts and positioning apparatus for optical components; vibration isolation apparatus, optical sources, optical components; lenses; optical condensers, mirrors, windows and flats; beam samplers, beam splitters; optical couplers, separators, and polarisers; electro-optical couplers, splitters, polarisers and modulators; prisms and optical filters; optical beam deflectors, optical beam detectors; parts and fittings for all of the aforesaid goods; computer software; computer software for the control of scientific and measuring apparatus and instruments; computer software for the control of lasers and laser systems; computer software for the control of optics and optical systems; leak testing apparatus; leak detection apparatus; parts and fittings for all the aforesaid goods. Lasers and laser systems for medical, surgical, and ophthalmic use; accessories for laser and laser systems for medical, surgical and opthalmic use; parts and fittings for all the aforesaid goods. Installation, assembly, maintenance, and repair of scientific and measuring apparatus and instruments and in particular lasers and laser systems, optics and optical systems; maintenance services, namely testing for leaks, faults and damage in pipes, conduits, containers and industrial and commercial apparatus; advisory and consultancy services relating to the above.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
Goods & Services
Scientific and measuring apparatus and instruments; Internet enabled scientific and measuring apparatus and instruments; lasers and laser systems; laser diodes; solid state lasers; control apparatus for lasers and laser systems; Internet enabled control apparatus for lasers and laser systems; Internet enabled control apparatus for optics and optical systems; optical apparatus and instruments; objectives, eye-pieces, reticles, focusing mechanisms, microscope bodies and barrels; diaphragms, shutters, optical tables and rails; optical component holders; mounts and positioning apparatus for optical components; vibration isolation apparatus, optical sources, optical components; lenses; optical condensers, mirrors, windows and flats; beam samplers, beam splitters; optical couplers, separators, and polarisers; electro-optical couplers, splitters, polarisers and modulators; prisms and optical filters; optical beam deflectors, optical beam detectors; parts and fittings for all of the aforesaid goods; computer software; computer software for the control of scientific and measuring apparatus and instruments; computer software for the control of lasers and laser systems; computer software for the control of optics and optical systems; leak testing apparatus; leak detection apparatus; parts and fittings for all the aforesaid goods. Lasers and laser systems for medical, surgical, and ophthalmic use; accessories for laser and laser systems for medical, surgical and opthalmic use; parts and fittings for all the aforesaid goods. Installation, assembly, maintenance, and repair of scientific and measuring apparatus and instruments and in particular lasers and laser systems, optics and optical systems; maintenance services, namely testing for leaks, faults and damage in pipes, conduits, containers and industrial and commercial apparatus; advisory and consultancy services relating to the above.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific and measuring apparatus and instruments; Internet enabled scientific and measuring apparatus and instruments; lasers and laser systems; laser diodes; solid state lasers; control apparatus for lasers and laser systems; Internet enabled control apparatus for lasers and laser systems; Internet enabled control apparatus for optics and optical systems; optical apparatus and instruments; objectives, eye-pieces, reticles, focusing mechanisms, microscope bodies and barrels; diaphragms, shutters, optical tables and rails; optical component holders; mounts and positioning apparatus for optical components; vibration isolation apparatus, optical sources, optical components; lenses; optical condensers, mirrors, windows and flats; beam samplers, beam splitters; optical couplers, separators, and polarisers; electro-optical couplers, splitters, polarisers and modulators; prisms and optical filters; optical beam deflectors, optical beam detectors; parts and fittings for all of the aforesaid goods; computer software; computer software for the control of scientific and measuring apparatus and instruments; computer software for the control of lasers and laser systems; computer software for the control of optics and optical systems; leak testing apparatus; leak detection apparatus; parts and fittings for all the aforesaid goods. Lasers and laser systems for medical, surgical, and ophthalmic use; accessories for laser and laser systems for medical, surgical and opthalmic use; parts and fittings for all the aforesaid goods. Installation, assembly, maintenance, and repair of scientific and measuring apparatus and instruments and in particular lasers and laser systems, optics and optical systems; maintenance services, namely testing for leaks, faults and damage in pipes, conduits, containers and industrial and commercial apparatus; advisory and consultancy services relating to the above. Research, development and design services all relating to science, technology, lasers and laser systems, optics and optical systems, and new products within these fields; rental and leasing of scientific and measuring apparatus and instruments and in particular lasers and laser systems, optics and optical systems; monitoring of scientific and measuring apparatus and instruments and in particular lasers and laser systems, optics and optical systems; installation, maintenance, monitoring and repair of computer software; testing of apparatus; advisory and consultancy services relating to the above.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
Goods & Services
Laser systems namely optical parametric oscillators; control apparatus for optical parametric oscillators; Internet enabled control apparatus for optical parametric oscillators ; computer software for the control of optical parametric oscillators; parts and fittings for all the aforesaid goods; all the aforesaid goods for lasers and laser systems, none of the aforesaid goods/services in relation to gas or fire detection. Installation, assembly, maintenance, and repair of laser systems namely optical parametric oscillators; advisory and consultancy services relating to the above, none of the aforesaid services in relation to gas or fire detection.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific apparatus, namely, Ti-sapphire lasers not for medical use; infrared lasers not for medical use; terahertz lasers not for medical use; femtosecond and picosecond lasers not for medical use; diode drivers, temperature controllers, photodiode monitors, data-loggers, external cavity frequency doublers and actuator drivers, all specially designed for lasers, not for medical use; measuring apparatus and instruments, namely, gas detectors for detecting the presence of gas or vapours; lasers, not for medical use; laser diodes; solid state lasers not for medical use; electronic control apparatus for lasers, not for medical use; internet or ethernet control apparatus for lasers, not for medical use; internet enabled electronic control apparatus for lasers, not for medical use; internet enabled electronic control apparatus for optics, namely, for optical lenses; optical lenses for use with lasers not for medical use; reticles for optical lenses, focusing mechanisms for lasers, diaphragms, shutters, optical tables and rails, all specially designed for lasers not for medical use; optical component holders, namely, holders specially designed for optical lenses, optical fibres, optical diaphragms, optical shutters, optical reticles and diodes; mounts and positioning apparatus specially designed for lasers, optical lenses, optical fibres, optical diaphragms, optical shutters, optical reticles and diodes, not for medical use; vibration isolators for controlling vibrations in lasers not for medical use; optical sources, namely, lasers and laser diodes not for medical use; optical components, namely, optical fibres; optical condensers, optical mirrors, optical windows and optical flats, all specially designed for lasers not for medical use; optical flats in the nature of optical lenses; beam samplers, namely, devices specially designed for sampling laser beams, not for medical use; beam splitters, namely, devices specially designed for splitting laser beams, not for medical use; optical couplers, separators, and polarisers, all specially designed for lasers, not for medical use; electro-optical couplers, splitters, polarisers and modulators all specially designed for lasers, not for medical use; prisms and optical filters; optical beam deflectors and optical beam detectors both specially designed for lasers, not for medical use; computer software for controlling lasers, not for medical use; computer software for the control of lasers and laser systems; computer software for the control of optics and optical systems Lasers for medical, surgical, and medical ophthalmic use; structural parts of laser and laser systems for medical, surgical and medical ophthalmic use Installation, maintenance, and repair of scientific and measuring apparatus and instruments, namely, of lasers and laser systems for medical, surgical and medical ophthalmic use Research, development and design of lasers and laser systems, optics and optical systems; rental and leasing of lasers and laser systems, optics and optical systems; monitoring of lasers and laser systems, optics and optical systems to ensure proper functioning; installation, maintenance, monitoring to ensure proper functioning and repair of computer software for controlling lasers, not for medical use
