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8184668 |
Method for reducing capacitance and improving high frequency performance in vertical cavity surface emitting lasers (VCSELs)
A VCSEL structure is provided. The VCSEL structure comprises a substrate. The structure may also include one or more conducting layers positioned on the substrate. There may be void spaces...
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8179931 |
Wavelength tunable filter and wavelength tunable laser module
A wavelength tunable filter and a wavelength tunable laser module are a codirectional coupler type whose characteristics do not vary significantly with a process error. They are structured so as to...
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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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8170077 |
Internal memory for transistor outline packages
A transistor outline (TO) package includes a housing having a window and a substrate. Circuitry is coupled to the substrate within the housing. The circuitry comprises a laser diode and memory...
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8170076 |
GaN laser element
In a GaN-based laser device having a GaN-based semiconductor stacked-layered structure including a light emitting layer, the semiconductor stacked-layered structure includes a ridge stripe...
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8165180 |
Waveguide device having delta doped active region
Embodiments of the invention include a laser structure having a delta doped active region for improved carrier confinement. The laser structure includes an n-type cladding layer, an n-type...
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8155163 |
Photonic crystal laser and method of manufacturing photonic crystal laser
A photonic crystal laser comprises an n-type substrate, an n-type clad layer, an active layer, a p-type clad layer, a photonic crystal layer, a p-type electrode, an n-type electrode and a package...
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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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8130806 |
AlGaInN-based lasers produced using etched facet technology
A process for fabricating lasers capable of emitting blue light wherein a GaN wafer is etched to form laser waveguides and mirrors using a temperature of over 500° C. and an ion beam in excess of ...
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8126332 |
Method of wavelength alignment for a wavelength division multiplexed passive optical network
Described is a method for controlling the wavelength of a laser in a wavelength division multiplexed (WDM) system. The method includes generating broadband light having a dithered optical power and...
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8121162 |
Nanocrystal structures
A structure including a grating and a semiconductor nanocrystal layer on the grating, can be a laser. The semiconductor nanocrystal layer can include a plurality of semiconductor nanocrystals...
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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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8111452 |
Wavelength conversion device with microlens and optical package incorporating the same
An optical package is provided comprising a laser diode and a wavelength conversion device. The laser diode and the wavelength conversion device define an external laser cavity and the wavelength...
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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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8107508 |
External cavity laser light source
Provided is an external cavity laser light source. The light source includes a substrate, an optical waveguide, and a current blocking layer. The optical waveguide includes a passive waveguide...
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8102890 |
Semiconductor light emitting device
A semiconductor light emitting device includes a first-conductivity-type first multilayer film reflecting mirror, and a second-conductivity-type second multilayer film reflecting mirror; a cavity...
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8098704 |
Semiconductor laser apparatus, method of manufacturing semiconductor laser apparatus, and optical pickup apparatus
A monolithic red/infrared semiconductor laser device is joined to a blue-violet semiconductor laser device. The distance between a blue-violet emission point in the blue-violet semiconductor laser...
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8094694 |
Operating a pulse laser diode
Circuit arrangements for the operation of a pulse laser diode and methods for operating a pulse laser diode include a current source to supply a direct current to the pulse laser diode. The circuit...
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8081671 |
Optoelectronic device and method of operating optoelectronic device
The invention provides an optoelectronic device combining a vertical cavity surface emitting laser (VCSEL) and a photodetector for monitoring the output power of the vertical cavity surface...
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8077752 |
Vertical cavity surface emitting laser
A Vertical Cavity Surface Emitting Laser (VCSEL) capable of providing high output of fundamental transverse mode while preventing oscillation of high-order transverse mode is provided. The VCSEL...
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8073029 |
Semiconductor optical device
To provide a semiconductor optical device which can restrain laser characteristics from being deteriorated by excitation in a substrate mode and can reduce the number of manufacturing steps. A...
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8068529 |
Surface emitting laser manufacturing method, surface emitting laser array manufacturing method, surface emitting laser, surface emitting laser array, and optical apparatus including surface emitting laser array
Provided is a surface emitting laser manufacturing method, etc., which reduces process damage occurring to a surface relief structure, enabling stable provision of a single transverse mode...
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8064492 |
Method of manufacturing semiconductor laser device, semiconductor laser device and light apparatus
A method of manufacturing a semiconductor laser device comprises steps of forming a first semiconductor laser device substrate having first grooves for cleavage on a surface thereof, bonding a...
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8059690 |
Sub-wavelength grating integrated VCSEL
A vertical cavity surface emitting laser (VCSEL) is described using a sub-wavelength grating (SWG) structure that has a very broad reflection spectrum and very high reflectivity. The grating...
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8050308 |
Transmitter optical subassembly with volume phase holographic optics
A means for optically coupling a semiconductor laser to an optical fiber is disclosed. In one embodiment, a volume phase holographic element is disposed on a light-emitting surface of a...
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8041219 |
Optical network element with Brillouin effect colorless wavelength shift
A method of optical communication includes generating an amplified optical signal from at least a portion of a first optical signal having a first carrier wavelength, λ1. The amplified optical ...
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8040933 |
Diffraction grating device, laser diode, and wavelength tunable filter
A diffraction grating device includes a substrate with a primary surface having a plurality of grating areas that are periodically arranged with a constant period in a predetermined axis direction,...
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8040928 |
Semiconductor laser, method for generating laser beam and method for reducing a spectral line-width of laser beam
A semiconductor laser is provided capable of generating very narrow laser beams and having stable characteristics, a method for generating the laser beams and a method for reducing a spectral...
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8031749 |
Passively Q-switched microlaser with controllable peak power density
Geometrical design of laser microchips is disclosed that allows variation of the optical path length in the different media by simple displacement of the microchip, the movement having a non-zero...
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8031752 |
VCSEL optimized for high speed data
A Vertical Cavity Surface Emitting Laser (VCSEL) is optimized for longer life of the VCSEL by controlling the distance of doped and undoped layers near an active region. In addition, the VCSEL...
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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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8009712 |
Light-emitting device having injection-lockable semiconductor ring laser monolithically integrated with master laser
A semiconductor ring laser (SRL) section is monolithically integrated with a DFB or DBR master laser section on a semiconductor substrate of a light-emitting device to provide an injection locking...
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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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7995636 |
Semiconductor laser apparatus and manufacturing method thereof
A semiconductor laser apparatus has a Zener diode containing a first semiconductor region of a first conduction type and a second semiconductor region of a second conduction type joined with the...
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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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7983318 |
Optical semiconductor device
An optical semiconductor device includes a semiconductor laser, a first optical waveguide, an optical coupler for branching light guided from the semiconductor laser through the first optical...
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7970036 |
Organic semiconductor laser and method for producing it
An organic semiconductor laser, which is produced integrally with an electrically operable inorganic LED (1), and also the method for producing said laser.
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7968362 |
Semiconductor light-emitting device, surface-emission laser diode, and production apparatus thereof, production method, optical module and optical telecommunication system
A semiconductor light-emitting device has a semiconductor layer containing Al between a substrate and an active layer containing nitrogen, wherein Al and oxygen are removed from a growth chamber...
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7965750 |
Semiconductor light emitting device
A semiconductor light emitting device includes a first-conductivity-type first multilayer film reflecting mirror, and a second-conductivity-type second multilayer film reflecting mirror; a cavity...
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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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7961768 |
Integrated semiconductor laser device and method of fabricating the same
An integrated semiconductor laser device capable of improving the properties of a laser beam and reducing the cost for optical axis adjustment is provided. This integrated semiconductor laser...
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7957448 |
Optoelectronic circuit with a photoreceptor and a laser diode, and module comprising the same
The optoelectronic circuit includes a photoreceptor (1) made in a silicon semiconductor substrate (4), and a monomode VCSEL laser diode (2) made in a gallium arsenide substrate. The photoreceptor...
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7957437 |
Multisectional laser
Disclosed is a semiconductor laser in which the substrate comprises at least three independent functional sections in the direction of light wave propagation, said functional sections serving...
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7940818 |
Passively mode locked quantum cascade lasers
This invention relates to a self-induced transparency mode-locked quantum cascade laser having an active section comprising a plurality of quantum well layers deposited in alternating layers on a...
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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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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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7924897 |
Semiconductor laser device
A semiconductor laser device includes a chip obtained from a substrate and a semiconductor multi-layer formed on the substrate. The semiconductor multi-layer is formed from a plurality of...
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