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8175130 |
Diode laser structure for generating diode laser radiation
A diode laser structure includes multiple stripe emitters disposed next to each other, in which each of the stripe emitters is configured to emit, during operation, a laser beam having a...
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8160115 |
Two-dimensional diode-laser array with broad-band output
It is demonstrated that substantial operating-parameter-dependent temperature-differences can exist between diode-laser bars in pulsed operation of a stack of such bars arranged to provide a...
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8152307 |
Diffractive optical element having periodically repeating phase mask and system for reducing perceived speckle
A optical apparatus (201) for use in an laser imaging system (200) is provided. The optical apparatus (201) includes one or more optical elements (215) that are configured to create an intermediate...
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8149891 |
Semiconductor device and optical module
A semiconductor laser element 10 according to the present invention comprises a waveguide 12 of a high mesa type. And then such the waveguide 12 comprises an oblique end face 17 as an emitting...
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8132919 |
Digital projector using arrayed light sources
A beam alignment chamber extending in a length direction comprising a base having a front edge, and two side edges, first and second opposed side walls connected to the base, and extending along...
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8130807 |
Diode laser array and method for manufacturing such an array
The invention relates to a diode laser array with at least one laser bar and having at least one emitter and a heat sink array for cooling the at least one laser bar.
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8130804 |
Laser diode and method of manufacturing the same
A laser diode capable of independently driving each ridge section, and inhibiting rotation of a polarization angle resulting from a stress applied to the ridge section without lowering reliability...
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8126025 |
Laser light source apparatus, and monitoring apparatus and image display apparatus using the same
A laser light source apparatus includes a first laser array light source that emits first-wavelength light, and a second laser array light source that emits second-wavelength light, the second...
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8120843 |
Dark channel array with scattering centers
In one of the embodiments, a dark channel array is provided which includes gain channels, each configured to emit an output beam from an output surface and to have a light wave propagating...
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8121167 |
Dual wavelength laser device for optical communication
A dual wavelength laser device including a cap, a header, a first laser chip and a second laser chip. The cap includes a cap body and a lens embedded on the cap body. The header forms an...
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8121166 |
Side-emitting LED light source for backlighting applications
This invention relates to a side-emitting light device comprising two sub-assemblies which are optically bonded together. Each sub-assembly comprises a substrate, at least one light source disposed...
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8121168 |
Multibeam laser diode
A multibeam laser diode capable of improving heat release characteristics in the case of junction-down assembly is provided. Contact electrodes are provided respectively for protruding streaks of a...
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8111730 |
3D optoelectronic packaging
An optoelectronic (OE) package or system and method for fabrication is disclosed which includes a silicon layer with a wiring layer. The silicon layer has an optical via for allowing light to pass...
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8102893 |
Multiple emitter VECSEL
An extended cavity surface emitting laser has a first laser die with a first cavity and a first gain element and a second laser die with a second cavity and a second gain element. The first and...
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8098699 |
Semiconductor laser apparatus and optical apparatus
A semiconductor laser apparatus comprises a first semiconductor laser device that emits a blue-violet laser beam, a second semiconductor laser device that emits a red laser beam, and a conductive...
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8089995 |
Structures and methods for adjusting the wavelengths of lasers via temperature control
One embodiment of the present invention provides a system that facilitates adjusting the wavelengths of lasers via temperature control. This system includes a chip with an active face upon which...
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8077751 |
Bar-shaped semiconductor laser chip and method of fabrication thereof
A bar-shaped semiconductor laser chip that can hold down a variation in oscillation wavelength is provided. The bar-shaped semiconductor laser chip has a nitride semiconductor substrate and a...
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8070298 |
Laser display system with optical feedback configured to reduce speckle artifacts
An imaging system (200) includes a plurality of laser sources (201) configured to produce a plurality of light beams (204). One or more optical alignment devices (220) orient the light beams (204)...
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8031751 |
Nitride semiconductor laser device
The present invention relates to a nitride semiconductor laser device having a structure in which two or more of nitride semiconductor laser elements, having at least a first electrode on a first...
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8023548 |
Diode lasers type of devices with good coupling between field distribution and gain
Diode lasers type of devices with good coupling between field distribution and gain are disclosed. A single element has a flat field distribution that couples with the uniform current injection in...
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8017954 |
Semiconductor light-emitting element and semiconductor light-emitting device
According to an aspect of the invention, there is provided a semiconductor light-emitting element including a substrate, a first stripe, the first stripe including a first n-type clad layer, a...
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8014431 |
Vertical surface light emitting device with multiple active layers
A vertical cavity surface light emitting device (VCSLED) with multiple active layers includes at least one optical resonance unit comprising a highly-doped conduction region (1), an insulating...
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8014434 |
Multiple cavity etched-facet DFB lasers
A semiconductor chip has at least two DFB etched facet laser cavities with one set of facets with AR coatings and a second set of etched facets with HR coatings that have a different relative...
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8005123 |
Wavelength tunable laser
A wavelength tunable laser includes a first facet including a high reflection coating film; a gain region disposed adjacent to the first facet, the gain region including two or more light emitting...
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8000368 |
Modulated semiconductor DFB laser array with a MEMS-based RF switch
Many approaches to tunable lasers use an array of DFBs, where each element of the array has a different wavelength. In some operations one element of the array is activated at a time depending on...
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7993012 |
Laser display system with optical feedback configured to reduce speckle artifacts
An imaging system (200) includes a plurality of laser sources (201) configured to produce a plurality of light beams (204). One or more optical alignment devices (220) orient the light beams (204)...
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7991034 |
Electrically-pumped semiconductor zigzag extended cavity surface emitting lasers and superluminescent LEDs
A semiconductor surface emitting optical amplifier chip utilizes a zigzag optical path within an optical amplifier chip. The zigzag optical path couples two or more gain elements. Each individual...
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7991035 |
Surface emitting laser array
Provided is a surface emitting laser array using a photonic crystal, which allows an active layer to be shared without disconnecting the active layer between the individual surface emitting lasers...
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7974327 |
Surface emitting laser element array
A surface emitting laser element array comprises a plurality of surface emitting laser elements (15) on a same substrate (1) each comprising a mesa post formed of a laminated structure including an...
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7972007 |
Image generating apparatus using a mirror common to a plurality of optical paths
An image generating apparatus is provided, which has a plurality of image generating optical paths and means for simultaneously deflecting a received plurality of light beams of primary...
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7970041 |
Semiconductor laser apparatus
A wavelength variable laser smaller in size than the conventional one can be achieved by arranging a gain chip, an etalon filter and a fifth reflective mirror on an AlN submount and longitudinally...
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7965748 |
Laser pump cavity
A laser pump cavity includes a heat sink holder with a central through hole, a plurality of slot portions, and a plurality of single emitters. The single emitter includes a heat sink and a single...
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7965754 |
Spherical array laser source
A laser cavity is provided by a reflecting spherical substrate with an array of emitters having a mode size. Each emitter has an axis aligned with a radius of the spherical substrate. A single mode...
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7960195 |
Laser diode array, method of manufacturing same, printer, and optical communication device
A method of manufacturing a laser diode array capable of inhibiting electric cross talk is provided. The method of manufacturing a laser diode array includes a processing step of forming a peel...
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7959297 |
Uniform speckle reduced laser projection using spatial and temporal mixing
A digital image projector includes a light assembly configured to project light along a light path from at least one laser array light source, the projected light having an overlapping far field...
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7961769 |
Wavelength tunable semiconductor laser device, controller for the same, and control method for the same
An object is to provide a wavelength tunable semiconductor laser device, a controller for the same and a control method for the same, which prevent wavelength drifts. The wavelength tunable...
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7961770 |
Optoelectronic module with integrated monitoring photodiode array for a parallel optical transmitter
A power monitoring system uses a low loss reflective element to partially split the output laser beams from an array of laser sources, in a parallel configuration, to produce a monitor beams for...
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7957447 |
VCSEL array device and method for manufacturing the VCSEL array device
Provided is a VCSEL array device that includes at least a first multilayer reflective film, an active layer, and a second multilayer reflective film, formed on a substrate that extends in a...
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7949028 |
Method of tuning a semiconductor laser device having coupled cavities
An array of optically coupled cavities (called micro-cavities) of a semiconductor laser are defined by either an etch and/or by a native oxide of an aluminum-bearing III-V semiconductor material...
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7949029 |
Wavelength tunable semiconductor laser having multiple sets of intercavity spacings
An array of optically coupled cavities (called micro-cavities) of a semiconductor laser are defined by either an etch and/or by a native oxide of an aluminum-bearing III-V semiconductor material...
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7949030 |
High-power, phased-locked, laser arrays
High-power, phased-locked, laser arrays as disclosed herein utilize a system of optical elements that may be external to the laser oscillator array. Such an external optical system may achieve...
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7949020 |
Semiconductor laser and optical integrated semiconductor device
A tunable distributed feedback semiconductor laser includes a substrate; an optical waveguide structure disposed on a main surface of the substrate and including an active layer and a diffraction...
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7944956 |
Heat sink, laser apparatus provided with such heat sink, and laser stack apparatus
A heat sink has a first flat plate, a partition plate, and a second flat plate. The first flat plate has an upper surface in which a first recess is formed. The second flat plate has a lower...
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7944960 |
Integration of laser sources and detectors for a passive optical network
Various methods and apparatuses are described in which an array of optical gain mediums capable of lasing are contained in a single integral unit. The array may contain four or more optical gain...
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7940828 |
Optical communication system and optical transmitter
An optical communication system for performing data transmission with optical signals comprises a first optical transmitter and a first optical receiver. The first optical transmitter has a first...
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7936799 |
Interleaving laser beams
A laser system includes at least two sources configured to provide at least two spatially separated laser beams, and a mount configured to mount the at least two sources along an arc, the arc...
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7936800 |
Light source device and projector
A light source device includes a plurality of light emission sections disposed in parallel with an interval, wherein the interval for the light emission sections near each end portion in an array...
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7933302 |
Laser arrangement having a laser diode apparatus and method for stabilizing operating temperature distribution of a laser diode apparatus
A laser arrangement has at least one laser diode apparatus with a side surface which laterally limits the laser diode apparatus. The laser arrangement has a plurality of active regions arranged...
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7929585 |
High brightness semiconductor laser diode arrays
Systems and methods for high brightness, improved phase characteristics laser diodes.
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RE42292 |
Pinned photodiode photodetector with common pixel transistors and binning capability
A lock in pinned photodiode photodetector includes a plurality of output ports which are sequentially enabled. Each time when the output port is enabled is considered to be a different bin of time....
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