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2018
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Invention
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Balancing losses in semiconductor optical waveguides. A method of equalising optical losses, at a... |
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Invention
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Negative bias to improve phase noise. Negative bias to improve phase noise A method of operating ... |
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Invention
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Combined frequency and mode filter. An optical filter comprising a first lens, and first and seco... |
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Invention
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Rf chirp reduction in mz modulator. A waveguide structure for use in a balanced push-pull Mach Ze... |
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Invention
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Apparatus for monitoring the output of an optical system. Apparatus for monitoring the output of ... |
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Invention
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Tuneable filter. According to a first aspect of the present invention, there is provided an optic... |
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2017
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Invention
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Electrical isolation in photonic integrated circuits. A method of providing electrical isolation ... |
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Invention
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Waveguide array. There is described an RF waveguide array. The array comprises a substrate compri... |
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Invention
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Waveguide structure. A waveguide structure including a waveguide having a thermally controllable ... |
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Invention
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Tuneable dbr laser without external frequency locker. In accordance with one aspect of the presen... |
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Invention
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Active mode centre control. There is disclosed a DBR laser and a method of use. The DBR laser com... |
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Invention
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Ground structure in rf waveguide array. A radio frequency, RF, waveguide array. The array compris... |
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Invention
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Optical locker. There is described an interferometer for use in an optical locker. The interferom... |
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Invention
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Optimised rf input section for coplanar transmission line. A chip comprising a bonding pad region... |
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Invention
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Radiofrequency structures in electronic packages. An RF transition assembly (300) for enabling a ... |
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2016
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Invention
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An optical modulation device. The invention relates to optical modulation devices and, in particu... |
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Invention
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Calibration of pluggable optical module. An optical communications apparatus comprising a host (1... |
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Invention
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Electronical compensation of an interleaver transfer function for optical multiple carrier transm... |
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Invention
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Dither free bias control. A Mach-Zehnder modulator for modulating optical signals, and comprising... |
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2015
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Invention
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Monolithically integrated tunable semiconductor laser. A monolithically integrated, tunable semic... |
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Invention
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Optical component. Methods and apparatus for use in coherent transmission and reception of optica... |
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2013
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Invention
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Semiconductor dbr laser. A semiconductor distributed Bragg reflector laser configured for single ... |
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Invention
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Component temperature control. There is disclosed an electronic assembly comprising an electronic... |
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Invention
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Optoelectronic assembly. The invention relates to an optoelectronic assembly. The optoelectronic ... |
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Invention
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Optical modulator. The invention relates to a folded Mach-Zehnder modulator. The modulator may co... |
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2012
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Invention
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Dual path wavelength selective switch. An optical switching device with a switch-and-select archi... |
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Invention
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Cooling system for an optical module. An optical module with a cooling system provides enhanced h... |
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Invention
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Multi-channel optical signal monitoring device and method. A light detector measures optical powe... |
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Invention
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Tunable multi-mode laser. A widely tunable multi-mode semiconductor laser containing only two ele... |
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Invention
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Embedded optical time domain reflectometer for optically amplified links. Fiber-optic communicati... |
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Invention
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High speed vertical-cavity suface-emitting laser. There is described a high speed vertical-cavity... |
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Invention
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Optical fibre and method of fabricating a coupling device therefor.
The present invention disclo... |
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Invention
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Optical fibre and method of fabricating a coupling device therefor. The present invention disclos... |
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Invention
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An optical system and a method for improving an optical system. Disclosed is an optical system an... |
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Invention
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Alignment of a data signal to an alignment signal. The present invention, provides a method and a... |
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Invention
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Tunable optical filters with liquid crystal resonators. A voltage-tuned optical filter that is lo... |
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Invention
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Wavelength selective switch. An optical switching device has multiple input ports and multiple ou... |
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Invention
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High speed vertical-cavity surface-emitting laser.
There is described a high speed vertical-cavi... |
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Invention
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Optical path switching. A light source package is disclosed for a Raman amplifier node having a p... |
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Invention
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Robust pigtail system for high power laser modules. In a high power, i.e. 100W and more, semicond... |
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Invention
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Tunable pumping light source for optical amplifiers. A tunable external cavity laser for use as a... |
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Invention
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Assembly for multiplexing light of different polarisation states and wavelengths. An assembly is ... |
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2011
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Invention
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Optical performance monitoring system.
An optical performance monitoring system includes a four-... |
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Invention
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Fast wavelength switching.
There is described a laser assembly for providing light at a switchab... |
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Invention
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Cooling system for an optical module.
An optical module with a cooling system provides enhanced ... |
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Invention
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Electrically-adaptive dspk and (d)mpsk receivers.
The present application describes methods and ... |
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2010
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Invention
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Photodiode array with algorithm-based crosstalk reduction.
A photodiode (PD) array accurately me... |
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Invention
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Surface treatments and coatings.
A method of treating a surface for an electronic or optoelectro... |
