| 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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| 02/06/1991 | EP0411022A1 Device and process for generating high-output, high-voltage pulses, in particular for partial-discharge gas lasers |
| 02/06/1991 | EP0411001A1 Te-type gas laser with an excitation circuit and with a multichannel pseudo-spark switch |
| 02/06/1991 | EP0410991A1 Laser |
| 02/06/1991 | CN2070955U Dye laser with compensated tune related to dual h high power |
| 02/06/1991 | CN1049069A Quasi-optical gyrotron |
| 02/05/1991 | US4991183 Target illuminators and systems employing same |
| 02/05/1991 | US4991182 Ring resonator |
| 02/05/1991 | US4991181 Platinum group metal, reducible metal oxide and compound which can bind water to its structure |
| 02/05/1991 | US4991180 Metallic vapor laser apparatus |
| 02/05/1991 | US4991178 Laser apparatus |
| 02/05/1991 | US4990761 Plural arc radiation protector |
| 02/05/1991 | US4990480 Dispersing source of boria, alumina, rare earth oxides, drying, calcining; used as catalysts, laser materials |
| 02/05/1991 | US4990322 NaCl:OH color center laser |
| 02/05/1991 | US4990287 (Naphtho or benzo)pyran compound |
| 02/05/1991 | CA2022672A1 Method of stabilizing the laser beam and apparatus utilizing the same |
| 02/05/1991 | CA1279919C Chemical laser |
| 01/31/1991 | DE3924320A1 Analysis of longitudinal mode structure of a laser - using band pass filtering to identify type of mode for indication via intensity independent threshold values |
| 01/31/1991 | DE3923791A1 Optical resonator for laser - which is unaffected by reflection from mirror cover layers |
| 01/31/1991 | DE3923625A1 Carbon dioxide gas laser with folded resonator - has gas circulation and electrode system to eliminate variations in density |
| 01/31/1991 | DE3923624A1 Carbon di:oxide gas laser with gas circulation - has system arranged to reduce variations in gas density in chamber by circulating gas in opposite directions |
| 01/30/1991 | EP0410880A1 Free electron laser with improved electron accelerator |
| 01/30/1991 | EP0410863A1 Free-electron laser with gas-loaded wiggler and method of using the same |
| 01/30/1991 | EP0410565A2 Power supply assembly |
| 01/30/1991 | EP0410217A1 Quasi-optical gyrotron |
| 01/30/1991 | EP0410155A1 Stable high voltage pulse power supply |
| 01/30/1991 | EP0409921A1 Optical feedback control in the frequency conversion of laser diode radiation. |
| 01/30/1991 | EP0409884A1 Glass laser |
| 01/30/1991 | EP0250581B1 Self-aligning phase conjugate laser |
| 01/30/1991 | EP0185035B1 Dye laser |
| 01/30/1991 | CN1048961A Unit for amplifying light signals in optical fibre transmission line |
| 01/29/1991 | US4989217 Laser resonator |
| 01/29/1991 | US4989216 Double conjugate laser amplifier |
| 01/29/1991 | US4989215 Laser pumping cavity |
| 01/29/1991 | US4989201 Optical communication system with a stabilized "comb" of frequencies |
| 01/29/1991 | US4988908 Piezoelectric transducers for a ring laser gyroscope dither motor |
| 01/29/1991 | US4988402 Processes for enhancing fluorescence of tunable titanium-doped oxide laser crystals |
| 01/24/1991 | WO1991001054A1 Synchrotron radiation excited laser |
| 01/24/1991 | WO1991001053A1 Process and device for regenerating a dye solution in a dilutant, in particular, a dye solution for a dye laser |
| 01/24/1991 | DE3923277A1 Gasentladungsanordnung Gas discharge arrangement |
| 01/23/1991 | EP0409682A1 High power laser pulse generator |
| 01/23/1991 | EP0409258A2 A fiber optical amplifier |
| 01/23/1991 | EP0409177A2 Optical feedback amplifier |
| 01/23/1991 | EP0409012A1 Unit for amplifying light signals in optical fiber transmission lines |
| 01/23/1991 | EP0408974A2 Laser device with Raman cell |
| 01/23/1991 | EP0408905A2 Optical fiber telecommunication line comprising amplifiers of the transmitted signals and amplifiers for said line |
| 01/22/1991 | US4987577 Gas laser having microwave excitation |
| 01/22/1991 | US4987575 Tetrahedral crystal structure |
| 01/22/1991 | US4987574 Helium-neon lasers |
| 01/22/1991 | US4987376 Frequency shifted laser transmitter |
| 01/22/1991 | US4986939 Method for the production of cylindrically symmetric bodies with a radial gradient |
| 01/22/1991 | US4986661 Solid state fiber optic semiconductor ring laser apparatus |
| 01/22/1991 | US4986634 Beam-combining laser beam source device |
| 01/22/1991 | CA1279395C Laser apparatus and method for discriminating against higher order modes |
| 01/16/1991 | EP0408406A1 Tunable high power laser source |
| 01/16/1991 | EP0408394A1 Optical communications network |
| 01/16/1991 | EP0408142A1 Method and electric circuit for exciting a gas discharge laser |
| 01/16/1991 | EP0407572A1 An assembly for arranging optical components of a laser |
| 01/16/1991 | CN2069618U Laser mechanism experimental apparatus |
| 01/15/1991 | WO1991001579A1 Narrow-band oscillation excimer laser and wavelength detector |
| 01/15/1991 | US4985898 Narrow-band laser apparatus |
| 01/15/1991 | US4985897 Semiconductor laser array having high power and high beam quality |
| 01/15/1991 | US4984885 Method and apparatus for high power optical fiber injection and alignment |
| 01/15/1991 | CA2063600A1 Narrow band excimer laser and wavelength detecting apparatus |
| 01/15/1991 | CA1278910C Mounting a component to a substrate |
| 01/14/1991 | WO1991001066A1 Optical communications network |
| 01/10/1991 | WO1991000632A1 Optical carrier generation using stimulated brillouin scattering |
| 01/10/1991 | DE4019822A1 HV pulse generating circuit - has magnetic pulse compression circuit with saturable main choke, and resetting circuit |
| 01/10/1991 | DE3920634A1 Ignition electrode for gas lasers - contains metal of platinum gp. in ignition area to increase its working life |
| 01/10/1991 | DE3920138A1 Corrosion resistant cooling device esp. for excimer laser - comprises low melting metallic layer between corrosion resistant metallic layers |
| 01/09/1991 | EP0407194A1 Input/output ports for a lasing medium |
| 01/09/1991 | EP0406351A1 Ultrasonic laser soldering. |
| 01/08/1991 | US4984246 Slab laser with optical pumping from a source having a narrow emitting area |
| 01/08/1991 | US4984245 Laser oscillator device and method of filling laser gas in such laser oscillator device |
| 01/08/1991 | US4983039 Spectrometer |
| 01/08/1991 | US4983009 Light transmitting device utilizing indirect reflection |
| 01/07/1991 | WO1991001055A1 Solid laser with a transmission wavelength of 0.5-0.65 micrometres |
| 01/07/1991 | CA2035889A1 0.5 - 0.65 micrometre wavelength solid laser |
| 01/02/1991 | EP0406062A1 Method and apparatus for in situ cleaning of excimer laser optics |
| 01/02/1991 | EP0405821A1 Ring resonator gyro |
| 01/02/1991 | EP0405800A2 Laser-photodetector assemblage |
| 01/02/1991 | EP0405529A1 Ring laser gyroscope |
| 01/02/1991 | EP0405195A2 Phase conjugate laser with a temporal square pulse |
| 01/02/1991 | CA1278421C Nonlinear optical materials and devices |
| 01/01/1991 | USH882 Multiple-section pulsed gas laser |
| 01/01/1991 | US4982406 Self-injection locking technique |
| 01/01/1991 | US4982405 Coupled-cavity Q-switched laser |
| 01/01/1991 | US4982166 Method and apparatus for combining two lower power laser beams to produce a combined higher power beam |
| 01/01/1991 | US4982082 Frequency detector for discriminating multi-longitudinal mode laser operation |
| 01/01/1991 | US4981359 Ring laser gyroscope dither drive system and method |
| 12/28/1990 | WO1991000631A1 Laser with switchable polarization |
| 12/28/1990 | CA2058931A1 Laser with switchable polarization |
| 12/27/1990 | WO1990016101A1 Double slab, diode pumped fibre bundle coupled solid state laser |
| 12/27/1990 | WO1990016100A1 Method for obtaining laser generation and a laser therefor |
| 12/27/1990 | WO1990016099A1 Optically switched, fluid cooled, diode pumped, fibre bundle coupled solid state laser |
| 12/27/1990 | EP0404635A1 Delocalised optical source illumination structure of a rod laser |
| 12/27/1990 | EP0404308A2 Semiconductor laser light source device |
| 12/27/1990 | EP0404152A2 Optical fiber amplifier |
| 12/27/1990 | EP0404054A2 Direct modulation phase-shift-keying system and method |
| 12/27/1990 | EP0403582A1 Acousto-electromagnetic hologistic resonant system |
| 12/27/1990 | EP0240512B1 Frequency referencing system and method |