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)
06/1994
06/01/1994EP0446369B1 Turbo blower for laser and laser oscillator using the same
06/01/1994EP0349590B1 Gas laser apparatus and method of operating
06/01/1994DE4239653A1 Micro-cooler arrangement for two-dimensional solid state laser array - minimises thermal deformation or stress birefringence by immediate cooling of hot spots of laser crystal deposited directly onto coolant surface
06/01/1994CN1024874C Non-linear reflecting mirror locking mode laser device
06/01/1994CN1024873C Optical power amplifier with doped active fibre
05/1994
05/31/1994US5317590 Positioning, compression and storage device for a modular face-pumped laser
05/31/1994US5317589 Laser oscillator having a curved mirror with a through-hole
05/31/1994US5317585 Laser reflecting cavity with ASE suppression and heat removal
05/31/1994US5317582 System for detecting modulated laser signals
05/31/1994US5317579 Laser pump
05/31/1994US5317577 Optical wavelength shifter using nonlinear refractive medium disposed interiorly of laser resonator
05/31/1994US5317576 Continously tunable single-mode rare-earth doped pumped laser arrangement
05/31/1994US5317447 High-power, compact, diode-pumped, tunable laser
05/26/1994WO1994011932A2 Power laser system
05/26/1994WO1994011931A1 Apparatus for, and method of, maintaining a clean window in a laser
05/26/1994WO1994011759A1 Look-ahead windshear detector by filtered rayleigh and/or aerosol scattered light
05/25/1994EP0598387A1 Optical transmission line and distortion reduction technique
05/24/1994US5315677 Optical pulse generator
05/24/1994US5315613 Laser diode pumped solid laser
05/24/1994US5315612 High efficiency transversely pumped solid-state slab laser
05/24/1994US5315611 High average power magnetic modulator for metal vapor lasers
05/24/1994US5315610 System for controlling the flow of gas into and out of a gas laser
05/24/1994US5315607 Dual use power supply configuration for the double pulsed flashlamp pumped dye laser
05/24/1994US5315605 Ion laser apparatus
05/24/1994US5315603 Backscatter absorption for laser diodes
05/24/1994US5315436 Fiber optics system
05/24/1994US5315433 Optical wavelength converting apparatus
05/24/1994US5314608 Nickel-cobalt-boron alloy, implement, plating solution and method for making same
05/24/1994CA2021281C Unit for amplifying light signals in optical fiber transmission lines
05/24/1994CA2019178C Direct modulation phase-shift-keying system and method
05/18/1994EP0597436A1 Spontaneous emission source having high spectral density at a desired wavelength
05/18/1994EP0597390A1 Birefringence distribution measuring method
05/18/1994EP0412165B1 Turboblower for lasers and laser oscillator
05/18/1994CN1024612C Active fiber optical amplifier having wide band signal wavelength
05/18/1994CA2103222A1 Optical transmission line and a method of forming thereof
05/17/1994US5313547 Optical light guides
05/17/1994US5313544 Wave guide and material comprising wave guides, and its applications and manufacture
05/17/1994US5313488 Ring laser discharge starting concept
05/17/1994US5313487 Discharge excitation gas laser apparatus
05/17/1994US5313486 Discharge excitation pulsed laser oscillation device
05/17/1994US5313485 Luminescent light source for laser pumping and laser system containing same
05/17/1994US5313481 Copper laser modulator driving assembly including a magnetic compression laser
05/17/1994US5313480 Stabilization apparatus and method for an SFS
05/17/1994US5313479 Speckle-free display system using coherent light
05/17/1994US5313478 Method of operating a semiconductor laser as a mode-locked semiconductor laser and devices for implementing the method
05/17/1994US5313477 Rare earth ion doped CW cascade fiber laser
05/17/1994US5313324 Solid state optical converter
05/17/1994US5313057 Non-selective photoreceiver for frequency-modulated optical signals and optical link using said receiver
05/17/1994US5312472 Coupling optics of a laser to laser tube
05/11/1994WO1994010729A1 A laser and a device for initiating mode-locking of a laser beam
05/11/1994WO1994010727A1 Laser oscillator
05/11/1994WO1994010538A1 Detector of variations in a physical quantity
05/11/1994WO1994010536A1 Method and apparatus for compensating for the residual birefringence in interferometric fiber-optic gyros
05/11/1994WO1994010534A2 Laser gyro digital path length controller
05/11/1994EP0596714A1 Solid state laser apparatus
05/11/1994EP0596463A1 Wavelength switching light source
05/11/1994EP0596009A1 Fiber optic isolator and amplifier
05/11/1994EP0595957A1 A method of amplifying an optical signal, an optical amplifier for performing the method, and use of such an optical amplifier as a source of light.
05/11/1994CA2148608A1 Physical quantity variations sensor
05/10/1994US5311606 Optical filter and optical amplifier employing said optical filters
05/10/1994US5311603 Highly efficient superfluorescent fiber laser/amplifier for interferometric sensors
05/10/1994US5311540 Laser with coupled optical waveguides
05/10/1994US5311538 For sensing rotation
05/10/1994US5311537 Hollow pipes of aluminum nitride and borosilicate glass; hermetic sealing; accuracy
05/10/1994US5311532 Calcium-yttrium silicate oxyapatite lasers
05/10/1994US5311531 Light generator, in particular for conveying a microwave signal
05/10/1994US5311529 Liquid stabilized internal mirror lasers
05/10/1994US5311528 Solid-state laser device capable of stably producing an output laser beam at high power
05/10/1994US5311527 Method for automatically adjusting the optical axis of a laser resonator
05/10/1994US5311525 Nonlinear optical coupler using a doped optical waveguide
05/10/1994US5311280 Laser light length control assembly for ring laser gyro
05/05/1994DE4236355A1 Adaptive diaphragm mirror with axially movable concentric knife-edges - employs straight-line piezoelectric positioner of outer knife-edge for adjustment of concavity giving stabilised laser power
05/05/1994DE4236296A1 Adjustable solid state laser for high-speed optical communication - has electro-optic crystal arranged w.r.t. axes such that electric fields vary laser emission wavelength
05/04/1994EP0595595A1 Superfluorescent source
05/04/1994EP0595537A1 Monitoring optical gain of semiconductor optical amplifier
05/04/1994EP0595536A1 Reduction of stimulated brillouin scattering in a fiber optic transmission system
05/04/1994EP0595396A1 A compact-size optical amplifier
05/04/1994EP0595395A1 A compact-size optical amplifier having separate functions
05/04/1994EP0595335A1 Laser oscillator
05/04/1994CN1086350A Helium neon laser
05/04/1994CN1024438C Multifunction laser resistance-regulating machine
05/03/1994US5309535 Apparatus and method utilizing a rotating waveplate for reducing polarization dependent hole-burning in an amplified optical transmission system
05/03/1994US5309530 Technique utilizing stress-induced birefringence for reducing polarization dependent hole-burning in an amplified optical transmission system
05/03/1994US5309473 Pulsed, frequency stable, narrow linewidth master oscillator and phase conjugation mirror therefor with semiconductor material having bandgap for nonlinear resonance
05/03/1994US5309471 Optically pumped laser minicavity, its production process and laser using said cavity
05/03/1994US5309469 Monitoring optical gain of semiconductor optical amplifier
05/03/1994US5309468 Laser diode for producing an output optical beam in a direction substantially perpendicular to epitaxial layers
05/03/1994US5309462 Magnetic spiker gas laser excitation circuit
05/03/1994US5309459 Laser gyro smart digital PLC acquisition control
05/03/1994US5309456 Pulse stretcher
05/03/1994US5309455 High-power light pulse generating apparatus
05/03/1994US5309454 Apparatus for wavelength conversion of laser light
05/03/1994US5309453 Single pulse injection locking
05/03/1994US5309452 Optical fiber doped with praseodymium
05/03/1994US5309277 High intensity illuminator
05/03/1994US5309255 Storage phosphor reader apparatus
05/03/1994US5309218 Gas ring laser gyroscopes
05/03/1994CA1329003C Lasing gas and process using a co _laser
05/01/1994CA2102020A1 Compact-size optical amplifier having separate functions
04/1994
04/28/1994WO1994009537A1 Gas discharge device current control circuit