Abrégé

The present invention relates to a laser device (10) comprising a housing (12) in which the following elements are arranged: - a laser cavity (20) bounded by a reflecting mirror (M1) and a partially reflecting mirror (M2), the partially reflecting mirror forming the exit of the laser cavity for a laser beam amplified in the laser cavity, - an optical fibre (22) able to convey the laser beam between the exit of the laser cavity and the world outside the housing, the optical fibre being fastened to the housing at least at one fastening point (P1, P2), and - a selective component (24) able to select the wavelength of the laser beam output from the laser device, the selective component being positioned in the optical fibre at the exit of the laser cavity and upstream of the one or more fastening points.

Classes IPC  ?

• H01S 3/08031 - Émission monomode
• H01S 5/02251 - Découplage de lumière utilisant des fibres optiques
• H01S 5/028 - Revêtements
• H01S 5/14 - Lasers à cavité externe
• H01S 5/0222 - Boîtiers remplis de gaz
• H01S 5/10 - Structure ou forme du résonateur optique

Abrégé

The present invention relates to a semiconductor optoelectronic device (10) comprising a junction (12) consisting a stack of layers defining an N-doped region, an intermediate region and a P-doped region, at least one layer, called a modulated layer, of the N-doped region and/or of the P-doped region and/or of the intermediate region, being formed of a plurality of stacks of sub-layers, each sub-layer differing from the other sub-layers of the same stack by a feature of the material of the sub-layer, called a distinctive feature, the thicknesses and distinctive features of the sub-layers being chosen so as to reduce the absorption of photons in the corresponding region compared with a semiconductor optoelectronic device, known as a reference device, the only difference being that each modulated layer is replaced by an unmodulated layer of the same thickness as the modulated layer and with identical features except for the distinctive feature.

Classes IPC  ?

• H01S 5/32 - Structure ou forme de la région activeMatériaux pour la région active comprenant des jonctions PN, p. ex. hétérostructures ou doubles hétérostructures

Abrégé

The present invention relates to a semiconductor optoelectronic device (10) comprising a junction (12) formed from a stack of layers defining an n-doped region, an intermediate region and a p-doped region, at least one layer, called the modulated layer, of the n-doped region and/or of the p-doped region and/or of the intermediate region, being formed from a plurality of stacks of sublayers, each sublayer differing from the other sublayers of the same stack in one characteristic of the material of the sublayer, which characteristic is called the distinctive characteristic, the thicknesses and the distinctive characteristics of these sublayers being chosen so as to decrease the absorption of photons in the corresponding region with respect to a semiconductor optoelectronic device, called the reference device, that differs only in that each modulated layer is replaced by a non-modulated layer that is of same thickness as the modulated layer and that has identical characteristics thereto with the exception of the distinctive characteristic.

Classes IPC  ?

• H01S 5/32 - Structure ou forme de la région activeMatériaux pour la région active comprenant des jonctions PN, p. ex. hétérostructures ou doubles hétérostructures
• H01L 21/02 - Fabrication ou traitement des dispositifs à semi-conducteurs ou de leurs parties constitutives

Produits et services

Optical fiber connectivity products, systems and components, namely, laser chips, pump and signal combiners and components, pump laser, strain sensors, temperature sensors, pressure sensors, thermal sensors, liquid-level sensors, timing sensors, interferometers, fiber laser mirror gratings, fiber Bragg gratings, cladding power strippers, semiconductors, frequency taps and splitters; Electrical and electronic components for communicating over fiber optic cable, namely, photo detectors, optical transmitter, optical receiver, optical amplifier module, pump laser, optical connector, optical isolator, optical coupler, optical attenuator, optical switch, optical modulator, optical circulator, optical polarizer, optical filter, optical grating, integrated optical circuit, waveguides, wavelength division multiplexer, optical add and drop multiplexer; environmental measuring and analysis instruments, namely, portable gas analyzers, oxygen analyser, environmental pollution analyzers, industrial gas analyzers, gas detectors, gas sensors, gas calibrators, gas monitors, gas chromatograph, air sampling pumps, dust monitors, weather station sensors, flow meters, flow conditioners, flow switches, water samplers, liquid-level gauges, level transmitters, level switches, level pump controllers, float switches, water quality analyzer, industrial waste water analyzer, water sensors, water test analyzers, water meters, data recorders for sewer overflow, laser scanners, temperature gauges, temperature sensors, pressure transmitters, level monitoring alarm, electronic recorder for measuring and recording multiple voltage current and thermocouple readings from various transducers. Sale of optical fiber connectivity products, systems and components; Sale of electronic equipment for the monitoring of industrial processes and environmental surveillance. Distribution of optical fiber connectivity products, systems and components; Distribution of electronic equipment for the monitoring of industrial processes and environmental surveillance. Engineering and design of optical fiber connectivity products, systems and components; Research and development in the field of optical fiber connectivity products, systems and components; technical consulting services in the fields of optical fiber connectivity products, systems and components; engineering in the field of air, gas, water monitoring systems and instrumentation industry; Calibration of electronic equipment for the monitoring of industrial processes and environmental surveillance.

Produits et services

Foundry services, namely, custom manufacturing of optical fiber connectivity products, systems and components, of electrical and electronic components for communicating over fiber optic cable, of electronic equipment for the monitoring of industrial processes and environmental surveillance; manufacture of optical fiber connectivity products, systems, and components to order and/or specification of others Optical fiber connectivity products, systems and components, namely, laser chips, pump and signal combiners and components, pump laser, strain sensors, temperature sensors, pressure sensors, thermal sensors, liquid-level sensors, timing sensors, interferometers, fiber laser mirror gratings, fiber Bragg gratings, semiconductors, frequency taps and splitters; Electrical and electronic components for communicating over fiber optic cable, namely, photo detectors, optical transmitter, optical receiver, optical amplifier module, pump laser, optical connector, optical isolator, optical coupler, optical attenuator, optical switch, optical modulator, optical circulator, optical polarizer, optical filter, optical grating, integrated optical circuit, waveguides, wavelength division multiplexer, optical add and drop multiplexer; Environmental measuring and analysis instruments, namely, portable gas analyzers, oxygen analyser, environmental pollution analyzers, industrial gas analyzers, gas detectors, gas sensors, gas calibrators, gas monitors, gas chromatograph, air sampling pumps, dust monitors, weather station sensors, flow meters, flow conditioners, flow switches, water samplers, liquid-level gauges, level transmitters, level switches, level pump controllers, float switches, water quality analyzer, industrial waste water analyzer, water sensors, water test kits, namely, water testing instrumentation for monitoring and detecting contamination, water meters, data recorders for sewer overflow, laser scanners, temperature gauges, temperature sensors, pressure transmitters, level monitoring alarm, electronic recorder for measuring and recording multiple voltage current and thermocouple readings from various transducers [ Distributorships and retail store services featuring optical fiber connectivity products, systems and components; business consulting services in the fields of optical fiber connectivity products, systems and components; distributorships and retail store services featuring electronic equipment for the monitoring of industrial processes and environmental surveillance ] Engineering and design of optical fiber connectivity products, systems and components; research and development in the field of optical fiber connectivity products, systems and components; engineering in the field of air, gas, water monitoring systems and instrumentation industry; calibration of electronic equipment for the monitoring of industrial processes and environmental surveillance

Produits et services

Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; Apparatus for recording, transmission or reproduction of sound or images; Magnetic data carriers, recording discs; Automatic vending machines and mechanisms for coin-operated apparatus; Cash registers, calculating machines, data processing equipment and computers; Fire-extinguishing apparatus. Telecommunications. Scientific and technological services and research and design relating thereto; Industrial analysis and research services; Design and development of computer hardware and software.