|
Match
|
Document |
Document Title |
|
|
6442184 |
Nitride-based semiconductor light emitting device and manufacturing method therefor
A semiconductor light emitting device having multi-layer structure of group-3 nitride-based semiconductors is disclosed. The light emitting device has lower density of threading dislocation...
|
|
|
6438148 |
Method and device for encoding data into high speed optical train
A device for encoding data into high speed optical train includes N data encoding branches, each having a dual-mode laser, generating at the beat frequency f, and an external modulator. Each dual...
|
|
|
6438147 |
Tunable external cavity diode laser
An external cavity laser system composed of a semiconductor diode laser ( 10 ), a temperature control ( 30 ) and injection current control ( 40 ) means the diode laser, an external cavity ( 60 )...
|
|
|
6434177 |
Solid laser with one or several pump light sources
In a solid laser with one or several pump light sources whose radiation is fed into a laser crystal with a high light density, a laser crystal and an optical resonator are provided. Each pump light...
|
|
|
6429463 |
Semiconductor device structures incorporating “buried” mirrors and/or “buried” metal electrodes and a process for their fabrication
The invention relates to a device structure and crystal growth process for making the same, whereby single-crystal semiconductor layers are formed over metal or composite layers. The metal layers...
|
|
|
6420197 |
Semiconductor device and method of fabricating the same
A semiconductor device comprises a substrate having a first thermal expansion coefficient T 1, a strain reducing layer formed on the substrate and having a second thermal expansion coefficient T...
|
|
|
6418152 |
Multi-amplifier, high power mode locked laser
A mode locked semiconductor laser that can generate relatively high-power output pulses. The semiconductor mode locked laser is formed from an array of optical amplifiers that are coupled to a...
|
|
|
6411642 |
Techniques for fabricating and packaging multi-wavelength semiconductor laser array devices (chips) and their applications in system architectures
Phase masks which can be used to make both linear and curved gratings of single or multiple submicron pitches, with or without any abrupt quarter-wavelength shifts (or gradually varying finer phase...
|
|
|
6411636 |
Nitride semiconductor laser and method of fabricating the same
A method for fabricating a nitride-semiconductor laser constituted by superimposing a plurality of crystal layers respectively made of a group III nitride semiconductor (Al x Ga 1−x ) 1−Y In y...
|
|
|
6411763 |
Integrated optical component
An integrated optical component having a first section (S 1 ) including a wave guide ( 10 ) perpendicular to an output facet (P) of the component, a termination (T) of the wave guide being coupled...
|
|
|
6404790 |
Semiconductor laser and multi-semiconductor laser
A stripe portion extending in an <011> crystal axis direction of a compound semiconductor substrate ( 1 ) in which a {100} crystalline surface is made a major surface is formed between...
|
|
|
6404789 |
Chiral laser apparatus and method
A chiral laser apparatus comprises a layered structure configured to produce a photonic stop band, the layered structure including a upper chiral material layer, a middle excitable light-emitting...
|
|
|
6396859 |
Chiral twist laser and filter apparatus and method
A defect causing a localized state is induced in a chiral structure composed of multiple chiral elements by twisting one element of the chiral structure with respect to the other elements along a...
|
|
|
6395573 |
Laser diode and method for fabricating the same
Provided with a laser diode and its fabricating method including the steps of: sequentially forming a first conductivity type clad layer, an active layer, a second conductivity type first clad...
|
|
|
6388275 |
Compound semiconductor device based on gallium nitride
A compound semiconductor device based on gallium nitride which can have a thick gallium nitride semiconductor layer serving to prevent cracks or defects attributable to a strain caused by a...
|
|
|
6385223 |
Method for connecting optical waveguide and optical semiconductor device and apparatus for connecting the same
A method for connecting an optical waveguide and an optical semiconductor device and an apparatus for connecting the same, capable of removing a working error and getting a high optical coupling...
|
|
|
6375364 |
Back facet flared ridge for pump laser
A laser pump module has a ridge waveguide chip with a ridge width that is flared in the direction of the rear facet. Such a ridge profile yields a number of advantages depending on the specific...
|
|
|
6369403 |
Semiconductor devices and methods with tunnel contact hole sources and non-continuous barrier layer
A semiconductor light emitting device is disclosed. The device has a tunnel junction disposed between a p-type layer and an n-type layer. The tunnel junction includes a tunnel barrier that is a...
|
|
|
6363092 |
Narrow spectral width high power distributed feedback semiconductor lasers
High power edge emitting semiconductor lasers are formed to emit with very narrow spectral width at precisely selected wavelengths. An epitaxial structure is grown on a semiconductor substrate,...
|
|
|
6356571 |
Semiconductor laser device and method of manufacture
A Vertical Cavity Surface Emitting Laser (VCSEL) ( 10 ) and a method for manufacturing the VCSEL ( 10 ). The VCSEL ( 10 ) includes a ridge structure ( 34 ), a first confinement layer ( 36 )...
|
|
|
6356693 |
Semiconductor optical pulse compression waveguide
A semiconductor optical pulse compression waveguide with a novel structure that can greatly reduce its size, and be simply fabricated. The semiconductor optical pulse compression waveguide is...
|
|
|
6350629 |
Optical semiconductor device having active layer and carrier recombination layer different from each other
In an optical semiconductor device including a semiconductor substrate, an active layer formed on the semiconductor substrate, a pnpn-type current blocking layer formed on a side of the active...
|
|
|
6347103 |
Light source module with two wavelength
Light source module with two wavelengths including a first and a second laser diodes each for emitting a laser beam with a wavelength different from each other, and a submount formed between the...
|
|
|
6345059 |
Short cavity tunable laser with mode position compensation
A semiconductor tunable laser system includes a tunable Fabry-Perot cavity and a cavity length modulator, which controls an optical length of the cavity at least over a distance corresponding to...
|
|
|
6337871 |
Multiple edge-emitting laser components located on a single wafer and the on-wafer testing of the same
An edge-emitting laser having an edge-emitting output and a surface-emitting output. The edge-emitting laser has a resonator having a high order grating, preferably a second order grating capable...
|
|
|
6333944 |
Semiconductor laser for operation in librational modes
A solid state laser comprises a cavity resonator in the form of a generally cylindrical body and, located within the resonator, an active region which generates lasing light when suitably pumped....
|
|
|
6330263 |
Laser diode having separated, highly-strained quantum wells
A semiconductor laser device with separated, highly-strained quantum wells employs highly-strained ternary and quasi-ternary compounds as material for each quantum well. A first device structure...
|
|
|
6327277 |
Method for controlling the wavelength of an optical fiber-based light source
The output wavelength of a laser-diode pumped fiber source can be stabilized at its minimum value irrespective of temperature and the age of the laser diode by the seeking the minimum output...
|
|
|
6326646 |
Mounting technology for intersubband light emitters
A mounting technology that increases the cw operating temperature of intersubband lasers, without increasing the risk of hot spots near the facets and short circuits near the perimeter of the laser...
|
|
|
6324200 |
Semiconductor laser device
A GaN buffer layer and an Si-doped n-type GaN contact layer are formed in this order on a sapphire substrate. An n-type Al 0 .3 Ga 0 .7 N cladding layer, an n-type Al 0 .25 Ga 0 .75 N optical guide...
|
|
|
6314117 |
Laser diode package
The output optical beam from an angled-facet semiconductor laser diode is made to propagate parallel to the optical axis of the laser package with low optical back-reflection. In this way, the...
|
|
|
6301278 |
Semiconductor laser devices
A semiconductor laser device has a semiconductor laser element placed inside a package on an electrically conductive submount such that one of the electrodes with one conduction type sandwiching...
|
|
|
6298078 |
Laser diodes with composite material systems which decouple refractive index and band gap profiles
Laser diodes are formed using composite material systems which result in the decoupling of the refractive index and band gap profiles of the structures formed with such systems. Laser diodes with...
|
|
|
6282214 |
Wavelength multiplexing light source
In a wavelength multiplexing light source used in an optical wavelength division multiplexing (WDM) transmission system and the like, at least three semiconductor lasers of single longitudinal mode...
|
|
|
6277651 |
Diode laser electrochemical sensor for detecting chemical and biological analytes
The present sensor allows the user of any diode laser structure to be employed to provide sensitive chemical and biological detector. A diode laser electrochemical sensor is described in U.S. Pat....
|
|
|
6275513 |
Hermetically sealed semiconductor laser device
A wafer assembly that includes a wafer substrate. A plurality of micro-optomechanical or micro-optoelectrical devices are positioned on a surface of the wafer substrate. Each micro-optomechanical...
|
|
|
6271961 |
Semiconductor optical component and amplifier and wavelength converter consisting thereof
An active structure in the semiconductor die of an amplifier or converter includes a plurality of stacked active layers with different compositions. The different compositions lead to a spectral...
|
|
|
6266354 |
Semiconductor laser device with ridge structure
A semiconductor laser device, including a substrate; a ridge stripe formed on the substrate and including an active layer, an n-cladding layer and p-cladding layer, the n-cladding layer and the...
|
|
|
6263006 |
Electroluminescent solid state device
An electroluminescent solid state device includes an active body member that is formed of a single crystalline metal oxide, such as aluminum oxide, that is doped with a rare earth element, such as...
|
|
|
6263002 |
Tunable fiber Fabry-Perot surface-emitting lasers
This invention provides compact, fixed-wavelength and tunable fiber-optic lasers comprising a gain medium, for example a semiconductor, half-cavity VCSEL, or an organic light emitting polymer,...
|
|
|
6256329 |
Semiconductor laser driver circuit
The larger the number of successive "0"s preceding a "1" in input data applied to a semiconductor laser, the longer the emission delay time of the laser. Accordingly, if a pulse signal for driving...
|
|
|
6256331 |
Semiconductor laser device, optical communication system using the same, and method for producing compound semiconductor
The semiconductor laser device of the present invention includes a GaAs substrate and a multi-layer structure formed on the GaAs substrate. The multi-layer structure includes an active layer for...
|
|
|
6249140 |
Method of screening semiconductor laser device using temperature cycling and variable driving current
A method of screening semicondutor laser devices which fail due to sudden deterioration and initial failures. Semiconductor laser devices are screened by thermal cycling wherein the devices are...
|
|
|
6240113 |
Microlaser-based electro-optic system and associated fabrication method
The electro-optic apparatus includes a primary heat sink and at least one submount mounted to the heat sink. The electro-optic apparatus also includes a pump source, such as a laser diode, mounted...
|
|
|
6236669 |
LD/PD module and LED/PD module
The module has a planar platform. A straight light guide is formed on the planar platform for guiding incoming light and outgoing light. A filter is interposed slantingly in the light guide for...
|
|
|
6233261 |
Optical communications system
Apparatus for simultaneously monitoring and controlling the wavelength of a plurality of semiconductor lasers whose wavelengths can be adjusted, the device including a wavelength filter including a...
|
|
|
6222863 |
Article comprising a stable, low-resistance ohmic contact
A stable, reliable ohmic contact, and improved semiconductor articles and opto-electronic circuits incorporating same, are disclosed. According to an illustrative embodiment of the invention, an...
|
|
|
6212213 |
Projector light source utilizing a solid state green light source
A light source constructed from a two dimensional array of light emitting devices. The light emitting devices include first, second and third types of light emitter. The first type of light...
|
|
|
6212212 |
Optical module
An electrode of a laser diode (LD) is joined with a Si substrate via a solder layer. A cavity region is formed directly under the LD in the solder layer. The solder layer spreads outside the cavity...
|
|
|
6208793 |
Wavelength-tunable optoelectronic apparatus
The present invention provides an optoelectronic apparatus operating on different wavelength channels, such that the individual wavelength channels are individually variable in wavelength. The...
|