Patents
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)
04/1992
04/08/1992EP0126735B2 Device for producing a laser radiation
04/08/1992CN1016188B Neutral high penetration low radiation multilayer film and its making method
04/07/1992US5103457 Elliptical mode cavities for solid-state lasers pumped by laser diodes
04/07/1992US5103454 Laser beam
04/07/1992US5103074 Laser processing method and apparatus
04/07/1992US5102834 For use in lasers; heat resistance
04/07/1992CA1298644C Unitary solid-state laser
04/07/1992CA1298643C Process for the electrical excitation of a lazer gas
04/07/1992CA1298642C Laser optical element mounting arrangement and method
04/07/1992CA1298636C Cavity length control apparatus for a multioscillator
04/07/1992CA1298507C Mirror assembly for lasers
04/02/1992WO1992005642A1 An optical fibre amplifier with coupling of pump energy from several pump sources
04/02/1992WO1992004876A2 Dental treatment device and filler material for use therewith
04/02/1992WO1992004871A1 Modular-construction, pulsed multi-wavelength solid laser for medical purposes
04/02/1992DE4030068A1 Optical information coupling to amplifier - using coupling medium having higher refractive index than optical fibre, or optical fibre doped with rare earth element
04/02/1992DE4029687A1 Excimer laser resonator with high spectral purity output beam - has filter between beam widening device and exit mirror
04/01/1992EP0478391A2 Optical wavelength filter device
04/01/1992EP0478180A2 Laser resonator
04/01/1992EP0477898A2 Method for producing a quartz optical waveguide
04/01/1992EP0477880A1 Slab or strip guide gas laser
04/01/1992EP0477879A1 Electrically pumped gaslaser suitable for high input power
04/01/1992EP0477875A2 Optical communication system and transmitting apparatus for use therein
04/01/1992EP0477865A1 High power strip guide laser
04/01/1992EP0477864A1 Slab or strip guide laser
04/01/1992EP0477427A1 Gas-laser with narrow tolerances for output performance
04/01/1992EP0477421A1 Mirror support for gas-laser
04/01/1992EP0422132A4 Laser harmonic generation employing low-loss external optical resonator
04/01/1992CN1059882A Mixed silicates of yttriium and lanthanide and laser using monocrystals of these silicates.
03/1992
03/31/1992US5101461 Optical fiber amplifier apparatus
03/31/1992US5101415 Laser resonator mirror with wavelength selective coatings on two surfaces
03/31/1992US5101414 Electrically wavelength tunable semiconductor laser
03/31/1992US5101411 Semiconductors
03/31/1992US5100236 Two servo loop passive ring laser gyroscope
03/31/1992US5100235 Laser-ring gyro beam intensity monitor
03/31/1992US5100220 Semiconductor laser diode arrangement and method of making same
03/26/1992DE4030006A1 Portable laser fitted inside support - has ceramic tube with laser parts independently adjustable to avoid deficiencies due to deviations in carrier tube
03/25/1992EP0477021A2 Superfluorescent source stabilization
03/25/1992EP0476914A2 Temperature stabilized broadband light source
03/25/1992EP0476910A2 Mode partition screening apparatus
03/25/1992EP0476889A2 An electromagnetic radiation frequency doubler system
03/25/1992EP0476857A1 Laser resonator mirror with wavelength selective coatings
03/25/1992EP0476830A2 Method of operating concatenated optical amplifiers
03/25/1992EP0476800A2 Large signal three-level superfluorescent fiber sources
03/25/1992EP0476383A2 Forsterite single crystal and method for the manufacture of the same
03/25/1992EP0457846A4 Microchip laser
03/25/1992EP0324028B1 High reflectance pumping cavity
03/25/1992EP0294459B1 Mirror assembly for lasers
03/24/1992US5099492 Laser system
03/24/1992US5099491 Laser gas replenishment system
03/24/1992US5099490 Method for reducing energy losses in laser crystals
03/24/1992US5099489 Apparatus comprising a quantum well device
03/24/1992US5099486 Frequency stabilized Ho:YAG laser
03/24/1992US5099350 Method and device for the optical filtering and photodetection of intensity-modulated optical signals
03/24/1992US5099175 Tunability enhanced electromagnetic wiggler
03/24/1992US5099147 Raman converter with variable wavelength distribution
03/24/1992US5098427 Surgical laser instrument
03/24/1992US5098189 Ion-suppressed ring laser gyro frames
03/24/1992CA1297935C Wavelength locked dye lazer with transverse pumping
03/23/1992CA2051981A1 Laser resonator
03/20/1992CA2051308A1 Stabilization apparatus and method for a sfs
03/20/1992CA2049849A1 Mode partition screening apparatus
03/19/1992WO1992004791A1 Optical packet time compression and expansion
03/19/1992WO1992004751A1 Laser resonator for laser media with annular cross-section
03/19/1992WO1992004748A1 Laser having coupled optical waveguides
03/19/1992WO1992004747A1 Semiconductor film free electron laser
03/19/1992WO1992004656A1 Optical pulse and method and apparatus for processing an optical pulse
03/19/1992DE4029530A1 Modular, pulsed solid state laser with multiple wavelengths - consists of basic alexandrite resonator using fundamental wavelength, after doubling or tripling or after exciting long wavelength resonator
03/19/1992DE4029187A1 High power carbon di:oxide laser - has rectangular transmission path with fixed structure for compactness
03/19/1992CA2051612A1 Stability compensated broadband source
03/19/1992CA2042255A1 Large signal three-level superfluorescent fiber sources
03/18/1992EP0475680A2 Laser system
03/18/1992EP0474683A1 Frequency-doubled laser.
03/18/1992CN1059622A Circular laser polariscope
03/17/1992US5097481 Gas laser having two longitudinal modes of laser oscillation
03/17/1992US5097480 Acoustic modulation apparatus for laser
03/17/1992US5097479 Folded waveguide laser
03/17/1992US5097478 Ring cavity laser device
03/17/1992US5097477 Laser diode pumped multiple rod ring laser allowing combination of multiple pump sources
03/17/1992US5097475 Arrangement for the input of energy into a gas-swept electrical gas discharge
03/17/1992US5097474 Gas laser
03/17/1992US5097472 Production of coherent light
03/17/1992US5097471 Mode-locked laser using non-linear self-focusing element
03/17/1992US5097229 Modulator - demodulator transformer coupled d.c. to one mhz information channel
03/17/1992US5096297 Multi-oscillator ring laser gyroscope with improved stabilization
03/17/1992US5095664 Optical surface polishing method
03/12/1992DE4028821A1 Glass optical fibre doped with rare earth elements - acts as pumped laser in which element is present to enhance laser transfer of the dopant thulium
03/12/1992DE4028818A1 Frequency stabilisation of semiconductor laser - using external ring resonator driven as brillouin laser to derive regulating signal from requency difference between oscillations
03/12/1992DE4028180A1 Soliton transmission procedure via light conductor(s) - using fibre=optic couplers and lasers to feed second Raman pump wave amplifying first to reduce its attenuation
03/12/1992DE4027929A1 Dye laser wavelength tuning - by dye temp. regulation, allowing fully automatic fine tuning for e.g. spectroscopy
03/12/1992DE4027559A1 Laser cavity for optical pumping of laser active material - uses light source to provide partial, alternating diffusely reflected and imaging reflected radiation
03/11/1992EP0474447A1 Method of producing an apparatus comprising an optical gain device
03/11/1992EP0474426A2 Optical star coupler utilizing fiber amplifier technology
03/11/1992EP0474408A2 Method and apparatus for controlling the power supply of a laser operating in a pulse mode
03/11/1992EP0248843B1 Simplified gaseous discharge device simmering circuit
03/11/1992CN1059426A Discharge tube of metal vapour laser device
03/11/1992CN1015840B Unit for amplifying light signals in optical fibre transmission line
03/10/1992US5095492 Providing light in a particular band of wavelengths
03/10/1992US5095491 Laser system and method
03/10/1992US5095490 Asymmetric rf excited gas laser electrode configuration
03/10/1992US5095487 System for generating pluralities of optical pulses with predetermined frequencies in a temporally and spatially overlapped relationship