| Patents for H01S 3 - Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves (57,482) |
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| 09/24/1991 | US5051788 Light-emitting apparatus |
| 09/24/1991 | US5051617 Multilayer semiconductor waveguide device for sum frequency generation from contra-propagating beams |
| 09/24/1991 | US5050949 Multi-stage optical fiber amplifier |
| 09/24/1991 | CA1289395C High energy laser beam replica producing method and system |
| 09/20/1991 | CA2036359A1 Laser system with multiple radial discharge channels |
| 09/19/1991 | WO1991014303A1 Laser system |
| 09/19/1991 | WO1991014301A1 Carbon dioxide laser |
| 09/19/1991 | DE4008226A1 Laser diode pumped ring laser - has three crystals forming resonator including Faraday rotation element |
| 09/19/1991 | DE4008225A1 Laser diode pumped solid state laser - has resonator divided into number of volumes using number of pumping diodes |
| 09/18/1991 | EP0447096A2 Quantum-well laser comprising an InGaAsP containment layer, and method of producing the laser |
| 09/18/1991 | EP0447032A2 A laser markable white pigment composition |
| 09/18/1991 | EP0446369A1 Turbo blower for laser and laser oscillator using the same |
| 09/18/1991 | EP0250464B1 Wide band, high efficiency simmer power supply for a laser flashlamp |
| 09/18/1991 | CN1054670A Actire fibre optical amplifier, with double-core portions, having wide signal wavelength band |
| 09/17/1991 | US5050184 Method and apparatus for stabilizing laser mirror alignment |
| 09/17/1991 | US5050183 Figure eight shaped coherent optical pulse source |
| 09/17/1991 | US5050182 Chemical process yielding stimulated emission of visible radiation via fast near resonant energy transfer |
| 09/17/1991 | US5050181 Waveguide laser with microwave excitation |
| 09/17/1991 | US5050179 External cavity semiconductor laser |
| 09/17/1991 | US5050178 Multichannel pseudo-spark switch and excitation circuit for gas lasers having the switch |
| 09/17/1991 | US5050176 Direct modulation phase-shift-keying system and method |
| 09/17/1991 | US5050175 Pulsed power laser with mopa structure with nonlinear energy transfer medium |
| 09/17/1991 | US5050174 Laser device |
| 09/17/1991 | US5050173 Looped, phased array laser oscillator |
| 09/17/1991 | US5048963 Dither signal remover for a dithered ring laser gyro |
| 09/17/1991 | US5048938 Monolithic laser spatial filter |
| 09/17/1991 | CA1289231C Intracavity generation of coherent optical radiation by optical mixing |
| 09/17/1991 | CA1289194C Optical communications system comprising raman amplification means |
| 09/16/1991 | CA2036765A1 Laser markable white pigment composition |
| 09/12/1991 | DE4007588A1 Kohlendioxid-laser Carbon dioxide laser |
| 09/11/1991 | EP0446153A2 Photorefractive system and process for its use |
| 09/11/1991 | EP0446079A1 Industrial material with fluorine passivated film and process of manufacturing the same |
| 09/11/1991 | EP0446072A2 Laser apparatus with preionization |
| 09/11/1991 | EP0445488A1 Semiconductor laser diode arrangement |
| 09/11/1991 | EP0197943B1 Optical waveguide amplifier and laser |
| 09/10/1991 | US5048051 Optically-stabilized plano-plano optical resonators |
| 09/10/1991 | US5048048 Gas laser device |
| 09/10/1991 | US5048047 Passive absorptive resonator laser system and method |
| 09/10/1991 | US5048046 Cathode and cathode mount for a gas laser |
| 09/10/1991 | US5048045 Automatic preionization pulse laser |
| 09/10/1991 | US5048044 Optically pumped lasers |
| 09/10/1991 | US5048043 Gas laser |
| 09/10/1991 | US5048042 Catalytic method for inhibiting deposit formation in methane Raman cells |
| 09/10/1991 | US5048041 Compact excimer laser |
| 09/10/1991 | US5048034 Long wavelength NdYAG laser |
| 09/10/1991 | US5048033 Method and apparatus for controlling the power supply of a laser operating in a pulse mode |
| 09/10/1991 | US5048032 Air cooled RF induction excited ion laser |
| 09/10/1991 | US5048031 Laser with actively stabilized etalon for single frequency operation |
| 09/10/1991 | US5048030 Light amplifying device |
| 09/10/1991 | US5048029 System for obtaining smooth laser beams where intensity variations are reduced by spectral dispersion of the laser light (SSD) |
| 09/10/1991 | US5048027 Hybrid laser |
| 09/10/1991 | US5048026 Fiber optic amplifier |
| 09/10/1991 | US5048025 Superconducting free electron laser |
| 09/10/1991 | US5046808 Integrated optics chip and method of connecting optical fiber thereto |
| 09/10/1991 | CA2036723A1 Photorefractive system and process for its use |
| 09/10/1991 | CA1288851C Generation of coherent optical radiation by optical mixing |
| 09/10/1991 | CA1288849C Ring laser gyroscope with geometrically induced bias |
| 09/10/1991 | CA1288819C Acknowledge back pager with frequency control apparatus |
| 09/09/1991 | CA2037850A1 Laser apparatus with preionization |
| 09/06/1991 | WO1991014302A1 Discharge excitation excimer laser device |
| 09/06/1991 | CA2054756A1 Discharge exciting excimer laser device |
| 09/05/1991 | WO1991013123A1 Cartridge for extending the lifetime of dyes in dye lasers |
| 09/05/1991 | WO1991013038A1 A rare-earth doped fibre |
| 09/05/1991 | WO1991011538A3 Improving material properties |
| 09/04/1991 | EP0444986A1 Electrical power supply device for one or several metal vapor lasers |
| 09/04/1991 | EP0444949A2 Three micron laser |
| 09/04/1991 | EP0444843A2 Interference sensors and methods of measuring a physical quantity using such interference sensors as well as vehicle control system |
| 09/04/1991 | EP0444694A2 Optical coupler |
| 09/04/1991 | EP0444607A2 Waveguide optical element and its driving method |
| 09/04/1991 | EP0444442A2 CO or CO2 waveguide laser |
| 09/04/1991 | EP0444435A2 Two cell laser raman converter |
| 09/04/1991 | EP0308511B1 Laser oscillator control circuit |
| 09/04/1991 | EP0259374B1 Self-pumped phase conjugate mirror |
| 09/04/1991 | CN2084239U Light feedback apparatus of statistics type pulse laser |
| 09/03/1991 | US5046184 Method and apparatus for passive mode locking high power lasers |
| 09/03/1991 | US5046070 Longitudinally laser pumped laser with compensation for thermal lens effects |
| 09/03/1991 | US5045759 Power supply for laser flashlamp |
| 09/03/1991 | US5045719 Deflection cell for power laser beams |
| 09/03/1991 | US5044731 Laser tube |
| 09/03/1991 | US5044713 Optical isolator |
| 09/03/1991 | US5044710 Laser beam deflection apparatus |
| 09/03/1991 | CA2037016A1 Three micron laser |
| 09/03/1991 | CA1288506C High frequency cross-flow gas laser and method using same |
| 08/29/1991 | DE4005867A1 Fibre=optical amplifier with two=way coupler - connected to each end of fibre and to light pump |
| 08/28/1991 | EP0443902A2 Laser delivering two waves at two different frequencies |
| 08/28/1991 | EP0443751A2 Solid lasers |
| 08/28/1991 | EP0443622A2 Method and apparatus for correcting amplitude variation in electro-optic laser systems |
| 08/28/1991 | EP0424481A4 A heat dissipating device for laser diodes |
| 08/28/1991 | EP0306536B1 Device for detecting output voltage of a laser oscillator |
| 08/28/1991 | CN1054137A Optical amplifier having a single-mode curved active fibre |
| 08/27/1991 | US5043998 Narrow-bandwidth unstable resonator laser cavity |
| 08/27/1991 | US5043997 Optical resonant cavity |
| 08/27/1991 | US5043996 Monlithic nonplanar ring oscillator and method |
| 08/27/1991 | US5043995 Process to electrically excite a laser gas |
| 08/27/1991 | US5043557 Load voltage detecting device for use in an apparatus for supplying a current variable with time to a load section |
| 08/27/1991 | US5043555 NC laser device |
| 08/27/1991 | US5043308 Crystalline rare earth aluminum borates |
| 08/27/1991 | US5042887 High energy ultraviolet laser reflector grown on a single crystalline substrate |
| 08/27/1991 | CA1288157C Rare earth doped semiconductor laser |
| 08/27/1991 | CA1288156C Wide tolerance, modulated blue laser source |