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WO/2024/043129A1 |
The present invention reduces a change in light quantity caused by a change in light-emitting current of a light-emitting element. This light source device comprises: a plurality of light-emitting elements; a plurality of switch elements...
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WO/2024/044567A2 |
A III-nitride-based vertical cavity surface emitting laser (VCSEL) includes an active region between p-type and n-type layers; and a curved mirror on or above the p-type layer such that the p-type layer is between the active region and t...
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WO/2024/041851A1 |
A self-mixing interferometric, SMI, laser sensor (1) comprises a vertical cavity surface emitting laser (10), VCSEL, configured to emit laser radiation, the VCSEL comprising a first distributed Bragg reflector (11), DBR, a second DBR (12...
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WO/2024/037264A1 |
A linear-light-spot light source emission device, comprising a plurality of vertical-cavity surface-emitting laser chips (101), and a circuit board (102). The circuit board (102) comprises a drive circuit. Each vertical-cavity surface-em...
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WO/2024/040106A1 |
A dual-grating spectral beam combiner includes a series of sources emitting a respective series of diverging laser beams with mutually parallel center rays offset from each other in a one-dimensional array. The laser beam wavelengths are...
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WO/2024/037890A1 |
The invention relates to a radiation-emitting device having a carrier having a principal plane of extent, a radiation-emitting component having a radiation exit surface, an optical element, and at least one positioning element, wherein t...
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WO/2024/038826A1 |
Provided is a prism which has, for example, an entrance surface, a reflection surface, and an exit surface extending in respective differing directions that each intersect a first direction, which changes the direction of travel of light...
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WO/2024/031944A1 |
Disclosed in the present invention are an automatic phase-locked constant-current source circuit and method for driving a tunable laser. The circuit comprises a phase lag circuit, a phase-locked loop, a summator and a voltage-controlled ...
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WO/2024/031810A1 |
A filter index determination method and apparatus, a device, and a computer readable storage medium. The method comprises: on the basis of first data of a filter at a first temperature and preset data of the filter at a second temperatur...
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WO/2024/034166A1 |
An optical device (100) comprises: a first optical functional layer (FL1) which is provided on a first prism (PS1), reflects light of a first wavelength from a first light source (LD1) and transmits light of a second wavelength from a se...
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WO/2024/032888A1 |
The present disclosure relates to optical communications using a spin vertical-cavity surface¬ emitting laser (VCSEL). The disclosure provides a laser apparatus comprising the spin VCSEL, and a light source for optically pumping the spi...
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WO/2024/034480A1 |
The present invention provides a method for producing a bonded wafer for micro LEDs, the method comprising: a step for forming an epitaxial layer by epitaxially growing an AlGaInP first cladding layer, an active layer and a second claddi...
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WO/2024/027248A1 |
A laser (400) and an optical module (200). The laser (400) comprises a gain chip (411), a first wave plate (413), a Faraday magneto-optic crystal (414), a polarization beam combiner (415), a second wave plate (416), a polarization beam s...
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WO/2024/028137A1 |
The invention provides a light generating system comprising a first light generating device, a second light generating device, a first luminescent material, and a control system, wherein: (A) the first light generating device comprises a...
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WO/2024/029182A1 |
This semiconductor laminate comprises a base layer, an active layer, an InP layer, a first semiconductor layer, a second semiconductor layer, and a third semiconductor layer. The InP layer has p-type conductivity. The first semiconductor...
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WO/2024/028239A1 |
The invention relates to a light emission system (10, 20) of the spin-LED or spin-laser type, comprising: - a stack (STA) comprising an active layer (AL) and transport layers; - an electrode referred to as anode (An) and an electrode ref...
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WO/2024/029062A1 |
This semiconductor optical device comprises: a first cladding layer (102) that is formed on a substrate (101); a first conduction-type first semiconductor layer (103) that is formed on the first cladding layer (102); an active layer (104...
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WO/2024/027769A1 |
A light source assembly (10) and a display device, relating to the technical field of photoelectricity. The light source assembly (10) comprises: a power supply board (101) and a plurality of lasers (102) secured on the power supply boar...
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WO/2024/028714A1 |
A pulsed laser diode driver includes a laser diode switch and a bypass switch to control a current flow through an inductor to produce a high-current pulse through a laser diode, the high-current pulse corresponding to a peak current of ...
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WO/2024/029255A1 |
An electronic device according to an embodiment of the present invention comprises: a chip; a semiconductor substrate; a bump; an insulating film; and a metal film. The chip is provided with a semiconductor laser. The semiconductor subst...
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WO/2024/028745A1 |
A semiconductor optical amplifier (1) for laser devices (100, 200), particularly of the quantum cascade type, which is adapted to emit luminous radiation when subjected to an electric current and which comprises: a quantum well structure...
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WO/2024/027157A1 |
Disclosed in the present invention is a laser gas sensor packaging structure, comprising a base. Two insulators are embedded in the base; connecting columns are mounted on both the insulators; a heating element is mounted between the two...
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WO/2024/024234A1 |
The present invention provides a semiconductor laser device comprising: a semiconductor laser element including a plurality of mesa portions; and a submount including a plurality of recesses where the plurality of mesa portions are arran...
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WO/2024/024190A1 |
This photonic crystal surface-emitting laser comprises an active layer, a photonic crystal layer, and a first semiconductor layer, wherein: the photonic crystal layer has a base material and a plurality of holes periodically arranged in ...
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WO/2024/023655A1 |
A light source device includes; a surface emitting laser to emit a light beam to a subject; and circuitry to drive the surface emitting laser to emit a light having a time width, a light intensity of which is 1/e2 with respect to a peak ...
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WO/2024/024734A1 |
This light-emitting module comprises: a support substrate having a plurality of placement surfaces arranged side by side in a first direction; a plurality of light-emitting devices, the corresponding light-emitting devices being disposed...
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WO/2024/023005A1 |
The invention relates to an optoelectronic module (1) comprising a substrate (2), a radiation-emitting semiconductor element (3) on the substrate, and an optical element (4) in a beam path of the semiconductor element (2), wherein at lea...
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WO/2024/024233A1 |
This semiconductor laser device comprises: a semiconductor laser element having a plurality of mesa sections; and a submount having recesses in which the plurality of mesa sections are disposed. The recesses each have a wiring section pr...
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WO/2024/024575A1 |
[Problem] To provide an optical device and a distance measuring device capable of suitably detecting an emission timing of oscillating light. [Solution] An optical device according to the present disclosure comprises: a light emitting el...
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WO/2024/024086A1 |
This optical transmitter comprises a waveguide type laser (102) formed on a substrate (101), a waveguide type EA modulator (103), and a waveguide type semiconductor optical amplifier (104) and comprises a condensing unit (106) that uses ...
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WO/2024/024369A1 |
[Problem] To provide: a light-emitting device configured such that a substrate that has been singulated can be suitably protected; and a manufacturing method for the same. [Solution] A light-emitting device according to this present disc...
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WO/2024/022714A1 |
An optoelectronic semiconductor device (1) comprising a semiconductor body (10) having a first region (101), a second region (102) and an active region (103) configured to emit or detect electromagnetic radiation in an emission direction...
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WO/2024/018501A1 |
A semiconductor laser light source device according to the present disclosure comprises: a temperature control module which includes a metal stem, an electrically conductive first support block provided on a main surface of the metal ste...
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WO/2024/017553A1 |
A method for manufacturing an edge emitting semiconductor laser diode comprising the following steps is provided: - providing an edge emitting semiconductor body (2) configured for generating electromagnetic laser radiation during operat...
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WO/2024/020526A1 |
A system comprises a wavelength-tunable light source and a controller. The controller is configured to cause attenuation of a light being generated by the wavelength-tunable light source during a transition period between a first wavelen...
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WO/2024/017891A1 |
Apparatus and method of coherent beam combination by coupling photonic crystal surface emitting lasers (PCSEL) to one or more adjacent PCSELs in a self-locked laser array with each laser at the same frequency and each coupling is a waveg...
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WO/2024/019098A1 |
Provided is a semiconductor light-emitting element having better light-emitting characteristics than conventional light-emitting elements. A semiconductor light-emitting element according to the present invention comprises a light-emitti...
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WO/2024/015554A1 |
Provided is a novel beam delivery system comprising an optical beam spatial period converter. The converter comprises a substrate comprising two or more flexures coupled in series; a plurality of first spacing reflective elements and a p...
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WO/2024/012899A1 |
The invention relates to a laser component comprising an active zone for generating electromagnetic radiation, a first mirror and a second mirror, wherein at least the first mirror has a functional region which has an adjustable refracti...
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WO/2024/015852A1 |
A spectroscopy system comprises a tunable laser including a gain chip, a collimating lens for collimating light from the gain chip, an end reflector, a focusing lens for focusing the collimated light on the end reflector, a thin film ban...
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WO/2024/014140A1 |
Provided is a surface emitting laser that is easily manufactured and is capable of simultaneously achieving lower resistance and higher light emission efficiency. The present technology provides a surface emitting laser comprising a re...
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WO/2024/015690A1 |
A laser assembly (10) includes a substrate (22); a plurality of spaced apart, lasers (20) grown on the substrate (22); and an electrical connector assembly (14). The lasers (20) are individually tested to identify if the tested lasers (2...
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WO/2024/013948A1 |
In the present invention, an initial setting circuit (11) holds an initial setting value corresponding to a preset target light amount of a semiconductor laser element (2). A differential amplifier (17) acquires, from a first optical det...
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WO/2024/012895A1 |
The optoelectronic semiconductor component (1) comprises a semiconductor body (2) having an active zone (23) and segments (3, 4), as well as a shielding structure (5). Two adjacent segments (3, 4) are separated by a trough (6) that penet...
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WO/2024/010847A1 |
An apparatus comprises an optical cavity formed on a substrate and defining a round-trip optical path, an interface positioning at least a portion of a gain medium to provide an active portion of the round-trip optical path over which th...
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WO/2024/009337A1 |
A multimode laser (1) is characterized by comprising: a semiconductor amplifier (2); and a laser resonator (7) formed between the semiconductor amplifier (2) and a loop mirror (6) that is composed of a waveguide formed on a semiconductor...
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WO/2024/008092A1 |
A table-lookup-type multi-band pulsed light parameter adjustment control system and method. The control system comprises: a multi-band light parameter setting module, a control module, a semiconductor light source drive module, a multi-p...
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WO/2024/008740A1 |
The invention relates to a semiconductor laser chip (101) comprising: * A substrate (105) comprising: - two side faces (107), - a lower face (109), and - an upper face (108); * at least two semiconductor lasers (102), these two lasers (1...
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WO/2024/008937A1 |
The invention relates to a device and a method for stabilizing the frequency of a laser, in particular a device and a method for stabilizing the frequency of a laser on the basis of the spectroscopy of a temperature-stabilized volume Bra...
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WO/2024/009822A1 |
The purpose of the present disclosure is to provide a metamaterial that is more practical and more useful. The present disclosure provides a metamaterial that has a structure in which structural units having air holes are arranged and ...
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