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)
02/1993
02/02/1993US5184247 Optically stabilized feedback amplifier
02/02/1993US5184189 Non-intrusive beam power monitor for high power pulsed or continuous wave lasers
02/02/1993US5184085 High-voltage pulse generating circuit, and discharge-excited laser and accelerator containing such circuit
02/02/1993CA1313404C Broadband optical fiber laser
01/1993
01/28/1993DE4124413A1 Subminiature, semiconductor, power solid state laser - is optically energised by number of LED chips with radiation impinging on jacket of laser-active crystal
01/28/1993DE4124407A1 Ring laser with polygonal beam path in resonator - uses reflection and output mirrors and deflection elements with two or more mutually offset polygonal beam paths to achieve high output power
01/27/1993EP0524591A1 Process for manufacturing active optical fibres
01/27/1993EP0524558A2 Superluminescent optical source
01/27/1993EP0524382A2 Optical oscillator sweeper
01/27/1993EP0432150B1 Laser diode with buried active layer and lateral current limiting and process for its manufacture
01/27/1993CA2048138A1 Dye laser add excitation light transmitted by optical fiber
01/26/1993US5182759 Apparatus and method for pumping of a weakly absorbing lasant material
01/26/1993US5181306 Method of making laser gyro resonator blocks
01/26/1993CA2074569A1 Process for making active optical fibers
01/21/1993WO1993001638A1 Multiple wavelength laser system
01/21/1993WO1993001637A1 Optical amplifier and laser
01/21/1993WO1993001635A1 Slab laser resonators
01/21/1993WO1993001510A1 Optical guided-mode resonance filter
01/21/1993WO1993001139A1 Neodymium-doped gehlenite crystal and laser using same
01/21/1993DE4124114A1 Resonator control for two-mode high pressure pulsed gas laser e.g. of TE carbon di:oxide type - converts optical output signal into electrical pulses, and evaluates them to adjust resonator length and to stabilise pulses via piezo-regulator
01/21/1993DE4123470A1 Kompakter gas-laser mit mikrowellen-anregung Compact gas laser with microwave-excitation
01/20/1993EP0524020A1 Raman laser
01/20/1993EP0523861A2 Optical device and method of manufacturing the same
01/20/1993EP0523828A2 Optically pumped up coverting light source
01/20/1993EP0523766A1 Polarisation-insensitive amplification device
01/20/1993EP0523674A1 Slab or ribbon guide laser for high laser output
01/20/1993EP0523484A2 Narrow band incoherent optical carrier generator
01/20/1993EP0523084A1 A method of forming a refractive index grating in an optical waveguide
01/20/1993CN1068218A High power gas laser
01/19/1993US5181223 High-efficiency mode-matched transversely-pumped solid state laser amplifier
01/19/1993US5181222 Laser oscillator
01/19/1993US5181217 Laser oscillator circuit
01/19/1993US5181215 Heated solid state laser
01/19/1993US5181214 Temperature stable solid-state laser package
01/19/1993US5181213 Optical pulse generating apparatus
01/19/1993US5181212 Method of emitting on a specific wavelength Fraunhofer line using a neodymium doped laser transmitter
01/19/1993US5181210 Electrically tunable fiber ring laser
01/19/1993US5181135 Optical underwater communications systems employing tunable and fixed frequency laser transmitters
01/19/1993US5180378 Laser surgery system
01/19/1993CA2074125A1 Raman laser
01/19/1993CA1312939C Laser
01/19/1993CA1312908C Plasma x-ray tube, for the x-ray pre-ionisation of gas lasers
01/19/1993CA1312907C Plasma x-ray tube, in particular for x-ray preionization of gas lasers and method for producing x-radiation with such an x-ray tube
01/13/1993EP0522379A2 Optical time multiplexing
01/13/1993EP0522201A1 Optical fiber amplifier with filter
01/13/1993EP0521943A1 Optical component
01/13/1993EP0414733B1 Scatter symmetrization in multi-mode ring laser gyros
01/13/1993CN1067832A Normal-temp. compound catalyst and catalytic device
01/12/1993US5179615 Optical waveguide having a variable refractive index and an optical laser having such an optical waveguide
01/12/1993US5179610 Connector for coupling of laser energy
01/12/1993US5179603 Optical fiber amplifier and coupler
01/12/1993US5179566 Laminated laser light emitting portion ans optical waveguides of semiconductor substrates
01/12/1993US5179564 Linear polarization control of high power lasers
01/12/1993US5179563 Linear polarization control of high power lasers
01/12/1993US5179562 Frequency doubled ultraviolet laser
01/12/1993CA1312666C Interlocked ring intracavity raman laser and method of generating raman shifted laser output
01/07/1993WO1993000605A2 Second harmonic generation and self frequency doubling laser materials comprised of bulk germanosilicate and aluminosilicate glasses
01/07/1993EP0521763A1 Optical noise reduction in optical fibre amplifier
01/07/1993EP0521715A1 Gas laser tube
01/07/1993EP0521364A2 Triaxial laser gyroscope
01/07/1993EP0521029A1 Gas laser.
01/07/1993EP0422155B1 Wavelength stabilization, in particular for interferometric measurement of length
01/07/1993DE4127421A1 Safety circuit for medical laser scalpel - detects parameters of test oscillation applied to all circuit components e.g. relay shutter, and power supply cut=off switch
01/07/1993DE4122431A1 Gas discharge lamp ignition device - uses conductor passing through annular lamp envelope coupled to HF coil
01/07/1993CA2112138A1 Second harmonic generation and self frequency doubling laser materials comprised of bulk germanosilicate and aluminosilicate glasses
01/06/1993CN1067767A Non-linear reflector modulus-locking laser device
01/05/1993US5177764 Unidirectional, planar ring laser with birefringence
01/05/1993US5177762 Saturable reactor
01/05/1993US5177761 Gas discharge tube having refractory ceramic coated bore disc for ion laser
01/05/1993US5177760 Gas laser with internal gas reservoir having long regeneration path
01/05/1993US5177759 Method and apparatus of fabricating a reflector
01/05/1993US5177756 Laser apparatus including crystal protection circuitry and method of operation thereof
01/05/1993US5177755 Laser feedback control circuit and method
01/05/1993US5177754 Magnetic compression laser driving circuit
01/05/1993US5177751 Laser apparatus
01/05/1993US5177750 Misalignment-tolerant, grating-tuned external-cavity laser with enhanced longitudinal mode selectivity
01/05/1993US5177749 Semiconductor laser device
01/05/1993US5177748 In phase coupled strip waveguide CO2 laser
01/05/1993US5177634 Optics
01/05/1993US5177562 Stability compensated broadband source and fiber interferometer
01/05/1993US5177205 Electrooptics
01/05/1993CA1312368C Multiply folded laser systems
01/03/1993CA2072789A1 Amplifying optical fibre amplifier
01/02/1993WO1993001636A1 Solid laser
01/02/1993CA2090557A1 Solid-state laser device
12/1992
12/30/1992EP0520670A1 Cooling apparatus for optical design
12/30/1992EP0520281A2 Optical element for generating short wave laser light
12/30/1992EP0520249A1 High frequency excited laser for high input power, in particular CO2 slab waveguide laser
12/30/1992EP0519998A1 Laser system.
12/30/1992CN1067530A Crystal optical-fibre laser device and its making method
12/29/1992US5175742 Atmospheric pulsed gas laser apparatus
12/29/1992US5175741 Optical wavelength conversion method and laser-diode-pumped solid-state laser
12/29/1992US5175738 Insulator for laser housing
12/29/1992US5175737 Cavity referenced acousto-optical laser frequency stabilization
12/29/1992US5175736 Tunable dye laser with thin birefringent filter for improved tuning
12/29/1992US5175664 Discharge of lightning with ultrashort laser pulses
12/29/1992US5175653 Brass laser mirror
12/29/1992US5175643 Monolithic integrated master oscillator power amplifier
12/29/1992US5174876 Controlling width, depth of waveguide strips in dielectric substrates
12/29/1992US5174853 Forsterite single crystal and method for the manufacture of the same