Patents
Patents for H01S 5 - Semiconductor lasers (52,420)
02/1990
02/13/1990US4901123 Superluminescent diode
02/13/1990US4900912 Driver circuit for semiconductor light-emitting device
02/13/1990CA1265863A1 Distributed feedback semiconductor laser with monitor
02/07/1990EP0354141A2 Diode laser with improved means for electrically modulating the emitted light beam intensity including turn-on and turn-off and electrically controlling the position of the emitted laser beam spot
02/07/1990EP0353853A1 Laser diode to fiber reflective coupling
02/07/1990CN1039511A Phi-coating for dfb/dbr laser diodes
02/06/1990US4899361 Optical filter device
02/06/1990US4899360 Semiconductor laser device having monolithically formed active and passive cavities on the same substrate
02/06/1990US4899359 Optical memory semiconductor laser apparatus
02/06/1990US4899349 Semiconductor laser device
02/06/1990US4899348 Method and apparatus for controlling optical output of laser light source
02/06/1990US4899344 Semiconductor laser control apparatus
02/06/1990US4899204 High voltage switch structure with light responsive diode stack
02/06/1990US4899201 Electronic and optoelectric devices utilizing light hole properties
02/06/1990CA1265604A1 Semiconductor lasers
01/1990
01/31/1990EP0353054A2 Quantum well structure and semiconductor device using the same
01/31/1990EP0353037A2 Bistable semiconductor laser diode device
01/31/1990EP0353033A2 Rib waveguide type semiconductor laser
01/31/1990EP0352974A2 Polarization independent optical amplifier apparatus
01/31/1990EP0352747A2 Frequency separation stabilization method for optical heterodyne or optical homodyne communication
01/30/1990US4897846 Surface emission type semiconductor light-emitting device
01/30/1990US4897845 Semiconductor optical amplifying element
01/30/1990US4897844 Information transmission by mode modulation and laser oscillators thereof
01/30/1990US4896936 Component mounted to substrate with overlying bridge-shaped supporte
01/25/1990WO1990000753A2 Optical components
01/25/1990WO1990000732A1 Method and apparatus for spectroscopic measurement of the concentration of a gaz
01/24/1990EP0352125A2 A semiconductor laser driving apparatus
01/24/1990EP0352059A2 An optically pumped laser
01/24/1990EP0352021A2 Optical amplifier with reduced nonlinearity
01/24/1990EP0351869A2 Electroluminescent device of compound semiconductor
01/24/1990EP0351868A2 Electroluminescent device of compound semiconductor
01/24/1990EP0351867A2 Electroluminescent device of compound semiconductor
01/24/1990EP0351839A2 Integrated semiconductor laser suitable for liquid-phase growth and method of fabricating same
01/24/1990EP0351816A2 Method and apparatus for stabilizing oscillation frequency separation among plural laser devices
01/23/1990US4896331 Distributed feedback semiconductor laser
01/23/1990US4896328 Ridge waveguide-type semiconductor laser having a current recombination layer and an optical waveguide layer
01/23/1990US4896327 Method for frequency stabilization of a semiconductor laser comprising a coupled external ring resonator
01/23/1990US4896325 Multi-section tunable laser with differing multi-element mirrors
01/23/1990US4895615 Monolithic fabrication techniques for front face optoelectronic couplers and/or optical components including ridge structured waveguides
01/17/1990EP0351211A2 Method of making an optical component
01/16/1990US4894840 Surface emitting laser
01/16/1990US4894839 High efficiency mode-matched solid-state laser with transverse pumping
01/16/1990US4894836 Semiconductor device
01/16/1990US4894835 Surface emitting type semiconductor laser
01/16/1990US4894834 Semiconductor laser and method for production thereof
01/16/1990US4894833 Surface emitting lasers with combined output
01/16/1990US4894832 Diodes; lasers
01/16/1990US4894525 Optical power control device for semiconductor light emitting element
01/16/1990US4894524 Laser recording apparatus with laser intensity control
01/11/1990WO1990000322A1 Semiconductor laser array
01/11/1990DE3821775A1 Semiconductor layer structure for a laser diode having a buried heterostructure
01/10/1990EP0350327A2 Semiconductor laser arrays
01/10/1990EP0350207A2 Transceiver-based single fiber lan
01/09/1990US4893353 Optical frequency synthesizer/sweeper
01/09/1990US4893313 Small threshold current; reliability
01/09/1990US4893296 Optical pickup device
01/09/1990CA1264368A1 Opto-electronic and electro-optic devices
01/03/1990EP0349193A2 A multi-layered dielectric film
01/03/1990EP0349082A1 Phase-coating for DFB/DBR laser diodes
01/03/1990EP0348950A2 Hybrid surface emitting laser and detector
01/03/1990EP0348941A2 Semiconductor laser device
01/03/1990EP0348540A1 Process for the selective growth of GaAs
01/02/1990US4891816 Integrated semiconductor laser device
01/02/1990US4891815 Bulk avalanche semiconductor laser
01/02/1990US4891093 Processes for the manufacture of laser including monolithically integrated planar devices
12/1989
12/26/1989US4890293 Semiconductor laser device
12/26/1989US4890292 Semiconductor laser device
12/26/1989US4890288 Light quantity control device
12/20/1989EP0347213A2 A grating-tuned laser
12/20/1989EP0347202A2 Excitation system for a semiconductor laser device
12/20/1989EP0346389A1 Dual mode laser/detector diode for optical fiber transmission lines
12/20/1989EP0187058B1 Near infrared monomode light source and tunable optical amplifier
12/19/1989US4888785 Miniature integrated optical beam splitter
12/19/1989US4888784 Semiconductor laser device
12/19/1989US4888783 Semiconductor laser device
12/19/1989US4888782 Semiconductor light emitting device
12/19/1989US4888781 Semiconductor laser
12/19/1989US4888777 Semiconductor laser control apparatus
12/19/1989US4888760 Optical head apparatus
12/19/1989US4888624 Semiconductor devices employing high resistivity in-based compound group III-IV epitaxial layer for current confinement
12/19/1989US4888085 Processes for their manufacture of monolithically integrated planar lasers differing in emission wavelengths
12/19/1989US4887900 Polarization maintaining fiber interferometer and method for source stabilization
12/14/1989WO1989012337A1 Laser diode source assembly
12/13/1989EP0346120A2 Semiconductor device
12/13/1989EP0345971A2 Apparatus comprising an optical or opto-electronic device
12/13/1989EP0345923A2 Grating coupler with monolithically integrated quantum well index modulator
12/13/1989EP0345874A1 Optoelectronic arrangement having a coupling between an optical transmission fibre and a semiconductor laser diode
12/13/1989EP0345626A2 Optical semiconductor device
12/12/1989US4887274 Deterioration-resistant superlattice semiconductor laser device
12/12/1989US4887271 Power supply for a laser diode in a common module
12/12/1989US4886334 Optical amplifying repeater
12/06/1989EP0345011A1 Electrical signal observing device
12/05/1989US4885753 Semiconductor laser device of variable wavelength type
11/1989
11/30/1989WO1989011743A1 Optical fiber tap for monitoring laser input power
11/30/1989DE3817326A1 Method for producing grating structures having sections mutually offset by half a grating pitch (period)
11/29/1989EP0343725A2 Optical transmitter with a laser diode
11/29/1989EP0343610A2 Method of characterizing bistable semiconductor lasers
11/29/1989EP0343591A2 Visible laser source
11/29/1989EP0343489A2 Optical amplifier module
11/28/1989US4884280 Semiconductor laser driving device for stabilizing the optical output thereof