Assignee: Spectra Diode Laboratories, Inc.

Location: SanJose, CA
No. of patents: 35

Browse patents
Browse applications

Number	Title	Issue Date
5231642	Semiconductor ring and folded cavity lasers A semiconductor laser that includes at least one grating reflector with a grating period selected to diffract at a nonperpendicular angle within the plane of the laser waveguide. This allows dispersal of laser light, eliminating filamentary multimode oper...	07/27/1993
5219785	Method of forming current barriers in semiconductor lasers A method using implantation to form a semiconductor laser or laser array with current blocking implants. A semiconductor material laser structure including layers of a first conductivity type, an active region and layers of a second conductivity type is f...	06/15/1993
5193098	Method of forming current barriers in semiconductor lasers A method using implantation to form a semiconductor laser or laser array with current blocking implants. A semiconductor material laser structure including layers of a first conductivity type, an active region and layers of a second conductivity type is f...	03/09/1993
5185754	Spectrally stable laser diode with internal reflector A laser diode construction having internal reflectors within the laser cavity to provide a stable spectral mode of laser operation. The laser includes a plurality of contiguous semiconductor layers disposed on a substrate to form a semiconductor body with...	02/09/1993
5185752	Coupling arrangements for frequency-doubled diode lasers Arrangements for efficiently coupling light between a laser diode and a second-harmonic generator which feature external resonant cavities that include a feedback grating fabricated on the second-harmonic generator. The feedback grating reflects light of ...	02/09/1993
5168401	Brightness conserving optical system for modifying beam symmetry An optical system for use in conjunction with a one or two dimensional array of high brightness sources where such sources are individually rotated by multiple reflective elements and in turn may be captured by beam filling optics and subsequently re-imag...	12/01/1992
5159604	Antiguided semiconductor laser array with edge reflectors In a semiconductor laser array structure in which antiguided regions between high effective refractive index waveguide regions experience greater gain then the waveguide regions, structures introduced at the sides of the array, next to the edgemost wavegu...	10/27/1992
5103456	Broad beam laser diode with integrated amplifier An integrated master oscillator/power amplifier semiconduction device having a laser diode oscillator, a broad area light amplifier and a coupling grating disposed to deflect light at an angle from the laser oscillator to the light amplifier. The amplifie...	04/07/1992
5099488	Ribbed submounts for two dimensional stacked laser array A laser array submount structure for assembly into a two-dimensional stacked array with precise separation between laser diodes of adjacent submounts. The submount includes a deformable metal layer, such as a soft solder, on one major surface of a laser a...	03/24/1992
5088105	Optical amplifier with folded light path and laser-amplifier combination An optical amplifier having one or more amplifier regions with a noncollinear light path provided by curved or folded waveguides therein between input, output and reflective surfaces provided, for example, by a low reflectivity front facet and a high refl...	02/11/1992
5065401	Pulse jitter reduction method for a laser diode or array A method of driving a multimode laser diode has pulse circuitry providing a sequence of drive current pulses to the laser and modulation circuitry superimposing a modulation current upon the drive current pulses. When the modulation amplitude and rate are...	11/12/1991
5048036	Heterostructure laser with lattice mismatch Semiconductor heterostructure lasers having at least one lattice mismatched strain layer in the cladding proximate to the active region. Indium or phosphorus may be added in high concentration to form the strain layers. The strain layers may be spaced som...	09/10/1991
5033054	Phase conjugate laser A laser having a phase conjugating reflector positioned with a resonant cavity of a laser configuration capable of multimode operation. The resonant cavity or other means associated with the laser configuration selects the preferred mode at threshold. The...	07/16/1991
5003550	Integrated laser-amplifier with steerable beam A monolithic integrated master oscillator power amplifier (MOPA) device including a single mode diode laser with distributed Bragg reflectors, an amplifier in tandem with the laser, lateral phase controllers and a detuned second order grating surface outp...	03/26/1991
4995050	Diode laser with external lens cavity A diode laser external lens cavity configuration having a stripe mirror with two thin parallel stripes placed in front of the two lobes of the arrays for far field output pattern. The configuration includes a diode laser array or broad area laser, a lens ...	02/19/1991
4984242	GaAs/AlGaAs heterostructure laser containing indium GaAs/AlGaAs heterostructure lasers containing indium in at least one layer other than or in addition to the active region. Embodiments are described in which indium added in low concentration to the cladding functions to match the lattice constants betwee...	01/08/1991
4972427	Talbot cavity diode laser with uniform single-mode output A diode laser of the type having an array of laser emitters in a Talbot cavity in which edge reflectors are added to enhance feedback to edgemost emitters. In one embodiment, a transparent slab with reflectively coated sides is present between the phase p...	11/20/1990
4934273	Laser flare A compact laser flare illuminator includes a semiconductor diode laser array radiation source, an energy source for the radiation source that can be switched on and a housing which holds the array and energy source, while allowing egress of a beam. This i...	06/19/1990
4933301	Method of forming a semiconductor laser A method of making semiconductor laser arrays having an impurity disordered pattern of waveguides at least some of which are directly joined at branching junctions. The region near the branching junctions provides a phase boundary condition in which light...	06/12/1990
4862802	Method of initiating a sequence of pyrotechnic events A pyrotechnic ignition method in which a semiconductor laser bar or bars containing a number of independent laser array sources deliver optical power in a specified sequence through optical fibers to a set of pyrotechnic elements in order to initiate a se...	09/05/1989
4845725	Window laser with high power reduced divergence output A window laser having at least one window region with a transparent waveguide layer optically coupled to an active region generating lightwaves. The waveguide layer is characterized by a broader guided transverse mode for the lightwaves than the active re...	07/04/1989
4826269	Diode laser arrangement forming bright image A plurality of diode lasers is focussed onto a single region by arranging the diodes at equally spaced locations on a first arc. Each diode laser emits light in a slit-like pattern which is characterized by orthogonal axes. In a first group of cylindrical...	05/02/1989
4820010	Bright output optical system with tapered bundle An optical system producing bright light output for optical pumping, communications, illumination and the like in which one or more fiberoptic waveguides receive light from one or more diode lasers or diode laser bars and transmit the light to an output e...	04/11/1989
4818062	Optical system with bright light output An optical system producing bright light output for optical pumping, communications, illumination and the like in which one or more fiberoptic waveguides receive light from one or more diode lasers or diode laser bars and transmit the light to an output e...	04/04/1989
4815084	Semiconductor laser with integrated optical elements Lasers and laser arrays having various optical elements, such as lenses, apertures, prisms, etalons and phase plates, integrated within the resonant optical cavity of the laser. The optical elements are created by introducing a lateral geometric contour i...	03/21/1989
4809288	Hybrid Y-junction laser array A semiconductor laser array having a plurality of waveguides at least some of which are directly joined at Y-junctions. The region near the Y-junctions provides a phase boundary condition in which lightwaves propagating in adjacent waveguides are in phase...	02/28/1989
4803691	Lateral superradiance suppressing diode laser bar A diode laser bar producing a linear array of laser beams without lateral superradiance. The laser bar has a double-heterostructure or quantum well structure. Etched channels in the substrate create lateral corrugations in the subsequently deposited layer...	02/07/1989
4794615	End and side pumped laser A laser having a combination of end and side pumping so as to produce high power pulsed output with little or no delay between side pump pulses and laser output pulses, with suppressed spiking due to gain switching, and with high modulation rates. An acti...	12/27/1988
4763975	Optical system with bright light output An optical system producing bright light output for optical pumping, communications, illumination and the like in which one or more fiberoptic waveguides receive light from one or more diode lasers or diode laser bars and transmit the light to an output e...	08/16/1988
4751711	Asymmetric offset stripe laser for emission in a single lobe A phased array laser having a laterally asymmetric variation in the gain or coupling of lasing elements of the array for emission in a single far field lobe. The lasing elements are confined by internal waveguide structuring, periodically spaced current c...	06/14/1988
4719634	Semiconductor laser array with fault tolerant coupling A semiconductor laser array having a plurality of sets of interconnecting waveguides, each joining two optical waveguides together at respective branching junctions. The array has a plurality of semiconductor layers disposed on a substrate, at least one o...	01/12/1988
4718069	Semiconductor laser array with single lobed output A semiconductor laser array having a single lobe far field intensity pattern radiating normal to the laser's light emitting facet. The laser array has a plurality of semiconductor layers disposed over a substrate, at least one of the layers forming an act...	01/05/1988
4716568	Stacked diode laser array assembly A diode laser array assembly made from a plurality of linear diode laser array subassemblies stacked one above the other. Each subassembly is an array of individual laser beam emitters, such as a laser bar, mounted on a support plate. An electrically cond...	12/29/1987
4688884	Fiberoptic coupling system for phased-array semiconductor lasers A fiberoptic coupling system comprising a phased array semiconductor laser and a squashed multimode light transmitting fiber. The squashed input end has an oblong, preferably elliptical, or polygonal cross-section with major and minor core widths. The maj...	08/25/1987
4633476	Semiconductor laser with internal reflectors and vertical output A heterostructure semiconductor laser emitting light in a direction vertical to the horizontal active layer has one or more internal reflectors for feedback. Angled reflectors, in the form of grooves etched at an angle exceeding the angle of total interna...	12/30/1986

PatentStorm

Famous Patents

PatentStorm News

Assignee: Spectra Diode Laboratories, Inc.