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)
08/1993
08/19/1993DE4304111A1 Image generating system for laser photocopier, printer - has solid state laser output pulse width modulated using phase locked loop using analogue voltage controlled oscillator
08/19/1993DE4204844A1 Voltage or current control of thyratron for gas-laser switching - determining error pulse rate or repetition rate of gas laser and setting operating voltage or current accordingly
08/18/1993EP0556016A1 Wavelength variable laser device
08/18/1993EP0555973A1 Hybrid pumping arrangement for doped fiber amplifiers
08/18/1993EP0555778A2 Optical filter and optical amplifier employing said optical filters
08/18/1993EP0339085B1 Optical device using stimulated brillouin scattering
08/17/1993US5237636 Optical wavelength converting apparatus
08/17/1993US5237584 High power optical cavity for end-pumped solid state laser
08/17/1993US5237583 MIrror
08/17/1993US5237582 Conductive polymer dye laser and diode and method of use
08/17/1993US5237580 RF excited CO2 slab waveguide laser
08/17/1993US5237578 Solid-state laser device capable of producing an outgoing laser beam having a narrower spectral band width
08/17/1993US5237577 Monolithically integrated fabry-perot saturable absorber
08/17/1993US5237576 Article comprising an optical fiber laser
08/17/1993US5237331 Eyesafe coherent laser radar for velocity and position measurements
08/17/1993US5237150 Method of cutting workpiece with laser beam
08/12/1993DE4303404A1 Laser generator, e.g. CO2 gas laser - has conical indentation in one mirror whose surface is angled at 45 deg. to optical axis of resonator having semitransparent mirror at other end
08/12/1993DE4203225A1 Waveguide laser e.g. diffusion-cooled Carbon di:oxide laser - has gaps between radial sectors of resonator mirror which constitutes diffraction grating for coupling of laser radiation bundle out of cavity between coaxial cylinder walls
08/11/1993EP0554714A1 Dispersion compensating devices and systems
08/10/1993US5235610 Prism gain module and method
08/10/1993US5235608 Gas laser apparatus
08/10/1993US5235607 Solid-state laser device and machining apparatus
08/10/1993US5235606 Amplification of ultrashort pulses with nd:glass amplifiers pumped by alexandrite free running laser
08/10/1993US5235605 Solid state laser
08/10/1993US5235604 Optical amplifier using semiconductor laser as multiplexer
08/10/1993US5235456 Tunable pulsed single longitudinal mode optical parametric oscillator
08/10/1993CA1321254C Gas laser apparatus, method and turbine compressor therefor
08/10/1993CA1321122C Processes for enchancing fluorescence of ti:a1_0_ tunable laser crystals
08/05/1993WO1993015536A1 Laser-diode pumped lasing fibre scalable to high powers
08/05/1993WO1993015423A1 Device and method for polarization-independent processing of a signal comprising a combined wave-guide and polarisation converter
08/04/1993EP0554126A1 Optical amplification repeating system
08/04/1993EP0553867A2 Drive circuit for electronic device
08/04/1993EP0553687A2 Laser apparatus
08/04/1993CN1075014A Device in which electromagnetic radiation is raised in frequency and apparatus for optically scanning an information plane, comprising such a device
08/03/1993US5233624 Method and apparatus for an increased output for a pumped laser using a moving aperture
08/03/1993US5233621 Second harmonic generation and self frequency doubling laser materials comprised of bulk germanosilicate and aluminosilicate glasses
08/03/1993US5233620 Second-harmonic generating apparatus
08/03/1993US5233619 High power light pulse generator
08/03/1993US5233463 Active fiber optical amplifier for a fiber optics telecommunication line
08/03/1993US5233456 Resonant mirror and method of manufacture
08/03/1993CA1320874C Process for the production of laser cathodes
08/01/1993WO1993015531A1 Reduction of sidelobes in optical arrays
08/01/1993CA2101173A1 Reduction of sidelobes in optical arrays
07/1993
07/29/1993DE4300700A1 Carbon di:oxide plate laser group arrangement - has channel between wave-conducting electrode surfaces subdivided into multiple parallel laser resonators
07/29/1993DE4202291A1 Optical resonator operating method, e.g. for optical frequency conversion - controlling resonator radiation power w.r.t. control value, at selected frequency of excitation radiation
07/28/1993EP0552937A1 Optically-amplifying repeaters
07/28/1993EP0552539A1 Method for forming microilluminants
07/28/1993EP0552415A1 Optical source with frequency locked to an in-fiber grating resonator
07/28/1993EP0552394A1 Method and apparatus for adjusting the wavelength in an optical device and laser using the method
07/28/1993EP0370110B1 Nc laser apparatus
07/28/1993CN1021717C Automatic tracking method for selection of longitudinal mode, Q regulating and mode locking
07/27/1993US5231644 Slab or stripline gas laser
07/27/1993US5231643 Optical frequency converter of bulk resonator structure
07/27/1993US5231641 Crystalline slab laser with intracavity non-linear optic
07/27/1993US5231533 Nonlinear optical element and uses thereof
07/27/1993US5231529 Light amplifier for multi-wavelength signals
07/27/1993US5231465 High efficiency fiber absorber and method for attenuating pump light in a broadband fiber optic light source
07/22/1993WO1993014542A1 High power laser employing fiber optic delivery means
07/22/1993WO1993014541A1 High power regenerative laser amplifier
07/22/1993WO1993014430A1 Method and apparatus for transmitting laser radiation
07/22/1993CA2128104A1 Method and apparatus for transmitting laser radiation
07/21/1993EP0552093A1 Method and apparatus for the generation of pulsed light using a laser source
07/21/1993EP0552029A1 Single focus backward Raman laser
07/21/1993EP0383942B1 Laser beam relay unit
07/20/1993US5230029 Electromagnetic scattering in active guides
07/20/1993US5230005 Electronic tuning of a broadband laser
07/20/1993US5230004 Narrow beam oscillator and large volume amplifier utilizing same gain medium
07/20/1993US5229883 Hybrid binary optics collimation fill optics
07/20/1993US5229100 From hydrogen peroxide and chlorine gas
07/20/1993CA2012221C Optical fibre for frequency conversions
07/20/1993CA1320559C Laser devices, laser system including the laser devices and output mirror for the laser system
07/20/1993CA1320557C Radio frequency excited ring laser gyroscope
07/20/1993CA1320532C Monitoring and controlling radiation source stability
07/15/1993DE4140404A1 Micro mechanical components prodn. bonding for semiconductor - by mechanically contacting components contg. ion plating applied adhesive layer on contact surfaces, avoiding high temp.
07/14/1993EP0550996A1 Structure and method for mounting laser diode arrays
07/14/1993EP0550929A1 Optical device and apparatus for scanning an information plane, comprising such an optical device
07/14/1993EP0550759A1 Discharge tube for laser
07/13/1993US5228051 Tilted lens imager in a laser amplifier/oscillator and method utilizing same
07/13/1993US5228049 Beam control in integrated diode laser and power amplifier
07/13/1993US5227913 Co-deposition of erbium and titanium into lithium niobate and optical amplifier produced thereby
07/13/1993US5227624 Optical sensing systems with plural wavelengths and wavelength sensitive sensors
07/08/1993WO1993013575A1 Multi-function intra-resonator loss modulator
07/08/1993WO1993013574A1 Method and apparatus for optical beam combination and cleanup using stmulated scattering
07/08/1993WO1993013045A1 Polymeric optical amplifier doped with lanthanide
07/08/1993DE4127859A1 Einrichtung zur messung der drehgeschwindigkeit Means for measuring the rotational speed
07/08/1993CA2126573A1 Polymeric optical amplifier doped with lanthanide
07/08/1993CA2126323A1 Apparatus and method for controlling an extinction ratio of a laser diode over temperature
07/07/1993EP0550309A1 Non-selective photoreceiver for frequency modulated optical signals and optical link using the photoreceiver
07/07/1993EP0550145A1 Low noise, optical amplifier having post-amplification loss element
07/07/1993EP0550095A2 Device in which electromagnetic radiation is raised in frequency and apparatus for optically scanning an information plane, comprising such a device
07/07/1993EP0549972A1 Compensated, SBS-free optical beam amplification and delivery apparatus and method
07/07/1993EP0549899A1 System and method for infrared-to-visible upconversion in a laser or display device operable at room temperature
07/07/1993EP0549853A1 Coupled quantum well tunable laser
07/06/1993US5226054 Cavity mirror for suppressing high gain laser wavelengths
07/06/1993US5226051 Laser pump control for output power stabilization
07/06/1993US5226050 Small line width tunable laser
07/06/1993US5226049 Optical fiber rare earth ion upconversion laser system
07/06/1993US5225925 Sensitized erbium fiber optical amplifier and source
07/06/1993US5225922 Optical transmission system equalizer
07/06/1993US5225850 Apparatus for controlling intensity of laser beam emitted from semiconductor laser unit