Patents
Patents for H01S 5 - Semiconductor lasers (52,420)
06/1994
06/07/1994US5319219 Efficiently generating high intensity beams of light at relatively low operating voltate
06/05/1994CA2110421A1 Optical transmission system
06/01/1994EP0599826A1 Semiconductor device including cascadable polarization independent heterostructure
06/01/1994EP0599248A1 Semiconductor laser pumped multiple molecular gas lasers
06/01/1994EP0599247A1 Semiconductor laser pumped molecular gas lasers
06/01/1994EP0599224A1 Light-emitting gallium nitride-based compound semiconductor device
06/01/1994EP0598966A1 Optical waveguide isolator
06/01/1994EP0598861A1 Method of fabrication optoelectronic components
06/01/1994EP0598855A1 Optically controlled semiconductor laser.
06/01/1994DE4338772A1 Laser appts of improved heat transfer - comprising substrate and diode laser rod arrangement
06/01/1994DE4239655A1 Optical transmitter using overlapping mode spectra - sub-divides interferometric branched Y=shaped waveguide laser into sections, with separate current paths providing individually-controllable current to associated segments for changing optical length of resonator
06/01/1994CN1024873C Optical power amplifier with doped active fibre
05/1994
05/31/1994US5317588 Ridge waveguide distributed-feedback laser diode with a depressed-index cladding layer
05/31/1994US5317587 VCSEL with separate control of current distribution and optical mode
05/31/1994US5317586 Buried layer III-V semiconductor devices with impurity induced layer disordering
05/31/1994US5317584 Surface emission type semiconductor laser
05/31/1994US5317583 Semiconductor laser screen of a cathode-ray tube
05/31/1994US5317581 Electric field absorption light modulation driving apparatus and method having improved feature to eliminate noise from optical output
05/31/1994US5317580 Bidirectional transmission system with identical laser components
05/31/1994US5317578 Laser light output control apparatus
05/31/1994US5317577 Optical wavelength shifter using nonlinear refractive medium disposed interiorly of laser resonator
05/31/1994US5317448 Method for driving a laser amplifier with minimized distortion
05/31/1994US5317447 High-power, compact, diode-pumped, tunable laser
05/31/1994US5317236 Single crystal silicon arrayed devices for display panels
05/31/1994US5317170 High density, independently addressable, surface emitting semiconductor laser/light emitting diode arrays without a substrate
05/31/1994US5316968 Method of making semiconductor surface emitting laser
05/31/1994US5316967 Using insulating film as mask to produce a ridge having reverse mesa shape
05/26/1994WO1994011930A1 A monolithically integrated semiconductor structure and method of fabricating such structure
05/26/1994WO1994011929A2 Optoelectronic devices
05/25/1994EP0598592A2 Laser emission unit, optical head and optical memory device
05/25/1994CN1024731C Semiconductor device comprising support and manufacturing method thereof
05/24/1994US5315608 Holmium-doped solid state optically pumped laser
05/24/1994US5315606 Laser diode driving circuit
05/24/1994US5315603 Backscatter absorption for laser diodes
05/24/1994US5315436 Fiber optics system
05/24/1994US5315133 Compound semiconductor structure including p-type and n-type regions doped with carbon
05/24/1994US5315104 Photodiode photodetector with adjustable active area
05/24/1994US5314844 Forming a groove in parallel to the crystal plane by grinding-cutting, breaking along the scribe line and the groove
05/24/1994US5314838 Method for making a semiconductor laser
05/19/1994DE4339184A1 Planar III-V semiconductor structure mfr. by vapour phase epitaxy - involves etching of epitaxial active layer prior to organic chemical vapour deposition of Gp.III and V elements for enclosure layer
05/18/1994EP0597644A1 Semiconductor laser driving circuit
05/18/1994EP0597436A1 Spontaneous emission source having high spectral density at a desired wavelength
05/17/1994US5313484 Quantum box or quantum wire semiconductor structure and methods of producing same
05/17/1994US5313483 Laser screen for a cathode-ray tube and method for making same
05/17/1994US5313482 Method and circuit arrangement for correcting the light power output of a laser diode
05/17/1994US5313478 Method of operating a semiconductor laser as a mode-locked semiconductor laser and devices for implementing the method
05/17/1994US5313333 Method and apparatus for combined active and passive athermalization of an optical assembly
05/17/1994US5313324 Solid state optical converter
05/17/1994US5313057 Non-selective photoreceiver for frequency-modulated optical signals and optical link using said receiver
05/17/1994US5312968 Compounds for skin lubrication
05/11/1994WO1994010755A1 Electronic component
05/11/1994WO1994010728A1 Modified semiconductor laser diode with integrated temperature control
05/11/1994WO1994010600A1 Single crystal silicon tiles for display panels
05/11/1994EP0596613A2 Optical fibre coupling modules
05/11/1994EP0596463A1 Wavelength switching light source
05/11/1994EP0596357A1 Laser diode automatic power control circuit with means of protection of the laser diode
05/11/1994EP0595831A1 Circuit for limiting the power of the optical signal emitted by a laser
05/10/1994US5311540 Laser with coupled optical waveguides
05/10/1994US5311539 Roughened sidewall ridge for high power fundamental mode semiconductor ridge waveguide laser operation
05/10/1994US5311536 Vertically stacked, accurately positioned diode lasers
05/10/1994US5311535 Monolithic laser diode array providing emission from a minor surface thereof
05/10/1994US5311534 Semiconductor laser devices
05/10/1994US5311533 Index-guided laser array with select current paths defined by migration-enhanced dopant incorporation and dopant diffusion
05/10/1994US5311531 Light generator, in particular for conveying a microwave signal
05/10/1994US5311530 Semiconductor laser array
05/10/1994US5311528 Solid-state laser device capable of stably producing an output laser beam at high power
05/10/1994US5311526 Article that comprises a semiconductor laser, and method of operating the article
05/10/1994US5311046 Long wavelength transmitter opto-electronic integrated circuit
05/10/1994US5311013 Optical fiber distribution system for an optical fiber sensor in a luminescent sensor system
05/10/1994US5311005 Optical transmitters
05/10/1994US5310697 Method for fabricating an AlGaInP semiconductor light emitting device including the step of removing an oxide film by irradiation with plasma beams and an As or P molecular beam
05/10/1994US5310696 Chemical method for the modification of a substrate surface to accomplish heteroepitaxial crystal growth
05/10/1994CA2000525C Grating-coupled surface-emitting superluminescent device
05/10/1994CA1329416C Device for biostimulation of tissue and method for treatment of tissue
05/05/1994DE4236644A1 Elektronisches Bauelement Electronic component
05/05/1994DE4236609A1 Method for forming a structure in the surface of a substrate - with an auxiliary structure laterally bounding an initial masking structure, followed by selective removal of masking structure using the auxiliary structure as an etching mask
05/04/1994EP0595537A1 Monitoring optical gain of semiconductor optical amplifier
05/04/1994EP0595502A1 Semiconductor optical apparatus having an improved precision for the optical beam position
05/04/1994EP0595469A1 Vertical-to-surface optical semiconductor device and apparatus for coupling optical signals
05/04/1994EP0595449A1 Semiconductor laser module
05/03/1994US5309542 Fiber optic transmitter modification for improved extinction ratio
05/03/1994US5309472 Semiconductor device and a method for producing the same
05/03/1994US5309470 Electrical distribution system for semiconductor laser integrated circuit
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
05/03/1994US5309467 Semiconductor laser with InGaAs or InGaAsP active layer
05/03/1994US5309466 Semiconductor laser
05/03/1994US5309465 Active layer of indium gallium arsenic phosphide with graded profile indium phosphide cladding layers
05/03/1994US5309464 Semiconductor laser and method for manufacturing the same
05/03/1994US5309463 Laser driving circuit
05/03/1994US5309461 Compensated laser drive circuit
05/03/1994US5309460 Semiconductor laser with encapsulated lead members
05/03/1994US5309458 Method and apparatus for stabilizing laser diode energy output
05/03/1994US5309457 Micro-heatpipe cooled laser diode array
05/03/1994US5309277 High intensity illuminator
05/03/1994US5309275 Semiconductor optical amplifying apparatus
05/03/1994US5309269 Light transmitter
05/03/1994CA2039875C Process for forming the ridge structure of a self-aligned semiconductor laser
04/1994
04/28/1994WO1994009507A1 An improved optical fiber distribution system for an optical fiber sensor in a luminescent sensor system
04/27/1994EP0594212A1 An ohmic electrode, its fabricating method and a light emitting device