Patents
Patents for H01S 5 - Semiconductor lasers (52,420)
04/1994
04/27/1994EP0593568A1 Fibre laser
04/27/1994EP0593531A1 Active optical logic device incorporating a surface-emitting laser
04/27/1994EP0383943B1 Light emitting device and method of producing the same
04/26/1994US5307434 Article that comprises a laser coupled to an optical fiber
04/26/1994US5307366 Logic function generator using an optical transposition in a distributed feedback laser diode
04/26/1994US5307362 Mold-type semiconductor laser device
04/26/1994US5307361 Ridge waveguide laser diode with a depressed-index cladding layer
04/26/1994US5307360 Method of wiring a row of lasers and a row of lasers wired by this method
04/26/1994US5307359 Monolithic semi-conductor laser producing blue, green and red output wavelengths
04/26/1994US5307357 Protection means for ridge waveguide laser structures using thick organic films
04/26/1994US5307183 Apparatus and method for fabricating a curved grating in a surface emitting distributed feedback semiconductor laser diode device
04/26/1994US5306924 Semiconductor device with strained-layer superlattice
04/26/1994US5306923 Optoelectric device with a very low series resistance
04/26/1994US5306385 Method for generating photoluminescence emission lines from transition element doped CAF2 thin films over a Si-based substrate
04/26/1994CA2034987C Front surface emitting diode laser
04/26/1994CA2013156C Random-access digitally-tuned coherent optical receiver
04/20/1994EP0593237A2 Optical semiconductor amplifier
04/20/1994EP0593031A2 Semiconductor laser and method of manufacturing same
04/20/1994EP0592746A1 Encapsulated light emitting diode and method for encapsulating the same
04/20/1994EP0592499A1 Slab laser resonators
04/19/1994US5305412 Semiconductor diode optical switching arrays utilizing low-loss, passive waveguides
04/19/1994US5305344 Laser diode array
04/19/1994US5305343 Highly coupled superlattice integrated laser-modulator component
04/19/1994US5305342 Multibeam semiconductor laser array
04/19/1994US5305341 Semiconductor laser whose active layer has an ordered structure
04/19/1994US5305340 Waveguide ridge laser device with improved mounting and ridge protection
04/19/1994US5305337 Laser controller
04/19/1994US5305336 Compact optical pulse source
04/19/1994US5305330 System comprising a laser diode and means for stabilizing the wavelength of light emitted by said laser diode, and laser interferometer
04/19/1994US5304507 Process for manufacturing semiconductor laser having low oscillation threshold current
04/19/1994US5304283 Process for producing a buried stripe semiconductor laser using dry etching for forming said stripe and laser obtained by this process
04/19/1994CA2011155C Semiconductor laser device
04/14/1994WO1994008371A1 Tuning system for external cavity diode laser
04/14/1994WO1994008370A1 Laser diode drive circuit
04/14/1994WO1994008369A1 Semiconductor laser with an active film disposed between two resonator mirrors, and a method for producing the laser
04/14/1994WO1994008368A1 Solid state waveguide lasers
04/14/1994WO1994008367A1 Laser diode assembly
04/14/1994WO1994008355A1 Method of producing p-doped layers, particularly in ii-vi semiconductors
04/14/1994DE4234342A1 Working materials with laser beam - using high power laser diodes, for welding, drilling, cutting, soldering and heat treating various materials
04/14/1994CA2146555A1 Laser diode drive circuit
04/13/1994EP0592293A1 Improved laser head
04/13/1994EP0591864A2 Optical semiconductor apparatus and optical communication system using the apparatus
04/13/1994EP0591863A1 Optical receiver, optical semiconductor apparatus, and optical communication system utilizing the same
04/13/1994EP0591814A1 Optical waveguide for continuously shifting the phase of the DFB grating period
04/12/1994US5303316 Optical beam scanner
04/12/1994US5303255 Distributed feedback semiconductor laser device and a method of producing the same
04/12/1994US5303251 Method and circuit arrangement for driving a laser diode
04/12/1994US5303248 Laser apparatus and method employing digital filter controlled pulse width modulation
04/06/1994EP0591042A1 Arrayed-wave guide grating multi/demultiplexer with loop-back optical paths
04/06/1994EP0590951A2 Semiconductor laser element
04/06/1994EP0590871A1 Thinning a diamond body by means of molten rare-earth-containing alloys
04/06/1994EP0590870A2 Method of making a buried heterostructure laser
04/06/1994EP0590336A1 Optoelectronic element with narrow beam angle
04/06/1994EP0590232A1 Semiconductor laser array and mounting method
04/05/1994US5301249 Catoptric coupling to an optical fiber
04/05/1994US5301204 Calcium fluoride film absorbs optical emissions from porous silicon layer
04/05/1994US5301202 Varying differences in aluminum concentrations of the upper and lower aluminum gallium arsenide cladding layers to control the horizontal far-field parameter
04/05/1994US5301201 Article comprising a tunable semiconductor laser
04/05/1994US5301059 Short-wavelength light generating apparatus
04/05/1994US5300956 Multibeam semiconductor laser array and multibeam laser printer
04/05/1994US5300794 Method of fabricating highly lattice mismatched quantum well structures
04/05/1994US5300789 Article comprising means for modulating the optical transparency of a semiconductor body, and method of operating the article
04/05/1994US5300788 Light emitting diode bars and arrays and method of making same
04/05/1994US5300452 Local etching with plasma of silicon tetrachloride and argon to which methane is added; smooth surface
04/05/1994US5300190 Process of producing diffraction grating
04/05/1994US5300062 Photocoagulator
03/1994
03/31/1994WO1994007287A1 Improved semiconductor architecture and application therefor
03/31/1994WO1994007178A1 Integrated tunable optical filter
03/31/1994DE4330987A1 Semiconductor laser with multilayer structure - has current and light limiting sections either side of separation channel groove
03/31/1994DE4232860A1 Halbleiterlaser mit einer zwischen zwei Resonatorspiegeln angeordneten aktiven Schicht und Verfahren zu seiner Herstellung Semiconductor laser with a resonator mirrors arranged between two active layer, and method for its preparation
03/31/1994DE4232764A1 Tunable HF signal generator heterodyning two coherent optical sources - is adjusted by variation of injection current in one of two laser diodes emitting at slightly different wavelengths
03/31/1994DE4232504A1 Verfahren zur Herstellung von p-dotierten Schichten insbesondere in II-VI-Halbleitern A process for preparing p-doped layers in particular II-VI semiconductors
03/30/1994EP0589727A2 Semiconductor laser device
03/30/1994EP0589524A2 Method of manufacturing an optoelectronic semiconductor device and optoelectronic semiconductor element suitable for use in such a method
03/30/1994EP0589397A1 Laser diode driving circuit and optical transmission device
03/30/1994EP0589200A1 Semiconductor laser device and its production method
03/29/1994US5299221 Laser light generating apparatus
03/29/1994US5299219 Stripe-type laser diode used as a light source
03/29/1994US5299218 Substrate, cladding layer, alkali halide active layer, field emission tip, vacuum space means and electrode means
03/29/1994US5299217 Semiconductor light-emitting device with cadmium zinc selenide layer
03/29/1994US5299216 Cladding and active layers comprises mixed crystal of group three to five semiconductor materials
03/29/1994US5299212 Article comprising a wavelength-stabilized semiconductor laser
03/29/1994US5299057 Monolithically integrated optical amplifier and photodetector tap
03/29/1994US5299045 Light detecting apparatus having a diffraction grating
03/29/1994US5298762 Quantum well switching device with stimulated emission capabilities
03/29/1994US5298735 Laser diode and photodetector circuit assembly
03/29/1994US5298456 Method of manufacturing semiconductor laser
03/29/1994CA2023510C Single wavelength oscillating semiconductor laser device and method for manufacturing diffraction grating
03/29/1994CA2015482C Optical system including wavelength tunable semiconductor laser
03/24/1994DE4231177A1 Semiconductor laser used as FM transmitter for optical communications - has charge-injection diode, and heating diode formed from simple pn junction with separate contacts form those used for carrying laser current
03/23/1994EP0588575A2 Optical recording/reproducing apparatus
03/23/1994EP0588406A1 Method of manufacturing a block-shaped support body for a semiconductor component
03/23/1994EP0588327A1 Silicon-based microlaser by doped thin glass films
03/23/1994EP0588292A1 Solid state laser
03/23/1994EP0588197A1 High power distributed feedback semiconductor laser
03/23/1994EP0588014A2 Optical bus with optical transceiver modules and method of manufacture
03/23/1994EP0587911A1 Semiconductor laser device
03/22/1994US5297218 Optical semiconductor laser and optical waveguide alignment device
03/22/1994US5297158 Multilayer clad metal element
03/22/1994US5297157 Driver circuit for a laser