Matches 351 - 400 out of 964 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >
Match Document Document Title
6996150 Semiconductor light emitting device and manufacturing method therefor  
A semiconductor light emitting device of double hetero junction includes an active layer and clad layers. The clad layers include an n-type layer and p-type layer. The clad layers sandwich the...
6993056 Hetero laser and light-emitting source of polarized radiation  
A device and method for hetero laser and light-emission of high polarization radiation. Previous light emitting devices suffered from very low degree of the radiation polarization. A hetero laser...
6993054 Enhanced link operation of directly modulated lasers using gain-coupled gratings  
Increasing the gain-coupling of a DFB directly modulated semiconductor laser permits the output response to be overdamped without lowering the relaxation oscillation frequency of the output. The...
6990133 Laser diode and manufacturing method thereof  
Laser diodes containing aluminum at high concentration in an active layer have been usually suffered from remarkable facet deterioration along with laser driving operation and it has been difficult...
6990134 GaN series surface-emitting laser diode having spacer for effective diffusion of holes between P-type electrode and active layer, and method for manufacturing the same  
A GaN series surface-emitting laser diode and a method for manufacturing the same are provided. The GaN series surface-emitting laser diode includes: an active layer; p-type and n-type material...
6987285 Semiconductor light emitting device in which high-power light output can be obtained with a simple structure including InGaAsP active layer not less than 3.5 microns and InGaAsP and InP cladding  
The semiconductor light emitting device includes a semiconductor substrate formed from InP, an active layer, an n-type cladding layer formed from InGaAsP, and a p-type cladding layer formed from...
6985505 Semiconductor laser diode and optical module  
The present invention provides a highly reliable ridge-waveguide semiconductor laser diode and an optical module. The p-side electrode of the ridge-waveguide laser diode has a first conductor layer...
6985504 Semiconductor laser and method for manufacturing the same  
A semiconductor laser includes an active layer formed on a substrate and a pair of cladding layers sandwiching the active layer. On at least one of resonator end faces of the semiconductor laser, a...
6983002 Semiconductor laser device and optical pickup using the same  
A semiconductor laser device, with which a compact and thin optical pickup can be realized, is provided. On the top surface of a supporting member, there is formed an element mounting area for...
6983003 III-V nitride semiconductor laser device  
A III-V nitride semiconductor laser device demonstrates an excellent emission characteristic without an increase in production cost. The refractive index of a p-side optical guiding layer is larger...
6980577 Vertical laser cavity with a non-planar top mirror  
A vertical laser cavity includes a non-planar top mirror in order to improve the optical performance of the laser cavity. In one approach, the top mirror is curved to form a plano-concave geometry...
6977951 Semiconductor laser apparatus and optical pickup apparatus using same  
A semiconductor laser apparatus of the present invention is composed of an insulating frame 11 in which at least a semiconductor laser device and a light receiving device are mounted. A plurality...
6975661 Method and apparatus for producing VCSELS with dielectric mirrors and self-aligned gain guide  
The invention includes a method of fabricating a laser device, that includes: depositing a photoresist on epitaxially grown layers, patterning said photoresist to form an aperture area, depositing...
6975663 Surface-emission laser diode operable in the wavelength band of 1.1-7μm and optical telecommunication system using such a laser diode  
A surface-emission laser diode includes a distributed Bragg reflector tuned to wavelength of 1.1 μm or longer, wherein the distributed Bragg reflector includes an alternate repetition of a...
6973109 Semiconductor laser device having strain buffer layer between compressive-strain quantum well layer and tensile-strain barrier layer  
A semiconductor laser device having an active region including alternating layers of at least one quantum well layer and a plurality of barrier layers, where two of the plurality of barrier layers...
6970490 Organic light emitting devices based on the formation of an electron-hole plasma  
When the density of excitons in an organic single crystal (including the linear acenes, polyacenes, and thiophenes) approaches the density of molecular sites, an electron-hole plasma may form in...
6970491 Planar and wafer level packaging of semiconductor lasers and photo detectors for transmitter optical sub-assemblies  
A planar wafer-level packaging method is provided for a laser and a monitor photo detector. The laser and photo detector are affixed to a planar substrate. The planar substrate provides electrical...
6970489 Semiconductor laser module, spatial optical transmission system and electronic appliance  
A highly sensitive and inexpensive spatial optical transmission system using an LD (Laser Diode) as a light source and making use of the characteristics of a light receiving element is provided....
6967980 Optical semiconductor module  
A semiconductor laser diode, in which an active layer is formed close to a bottom surface thereof, is fixed to a top surface of a substrate by means of solder layers in such a condition that the...
6967982 Semiconductor laser device with a strain reduction cushion function, semiconductor laser module, and semiconductor laser device fabrication method  
A semiconductor laser element is fixed onto a submount by forming a metallic thin film at a region on a surface of a p-side electrode of the semiconductor laser element. A periphery of the thin...
6967983 Semiconductor laser apparatus  
A device structure whereby an excellent tunable laser does not require a highly complicated wavelength control circuit, and delivers a high output, and excels in wavelength stability; and a...
6967984 External cavity laser  
External cavity laser with reflector in optical wave guide, particularly HDBR laser, with an active element comprising a semiconductor optical amplifying cavity having a low-reflectivity facet ( 3...
6967770 Semiconductor optical amplifier with reduced effects of gain saturation  
An active optical device with reduced axial carrier depletion is disclosed. This active optical device includes a substrate layer; a p-doped active layer coupled to the substrate, a semiconductor...
6967979 Semiconductor laser device, optical pickup and fabrication method of semiconductor laser device  
A semiconductor laser device and optical pickup in which the reflectance of the side beam at a header portion will not adversely affect the characteristics of the optical pickup, and superior in...
6965626 Single mode VCSEL  
A VCSEL having a metallic heat spreading layer adjacent a semiconductor buffer layer containing an insulating structure. The heat spreading layer includes an opening that enables light emitted by...
6965623 Semiconductor laser device and method of manufacturing the same  
In the semiconductor laser device of the present invention, a P-type diffusion region 3 A is disposed in an N − epitaxial layer 2 of a silicon submount 16 , and an N-type diffusion region 4...
6963593 Semiconductor laser module and optical transmitter  
For preventing an optical axis from shifting due to a heat cycle in a semiconductor laser module, or in a optical transmitter, the semiconductor laser module comprises, a semiconductor laser...
6963592 Laser amplifying system  
In order to improve a laser amplifying system comprising a plate-like solid-state body which has two oppositely located flat sides and comprises a laser-active medium, a cooling member with a...
6961357 Semiconductor laser module  
In a semiconductor laser module, in order to sufficiently reduce the thermal stress arising in a due to the bonding of elements when they are packaged and to improve the yield of production, the...
6959027 High-power coherent arrays of vertical cavity surface emitting lasers  
A high-power coherent array of Vertical Cavity Surface Emitter Lasers is described in which a plurality of Vertical Cavity Surface Emitting Lasers (VCSELs) are provided along with a structure which...
6959029 Apparatus for performing anastomosis  
A wide-slit lateral growth projection mask, projection system, and corresponding crystallization process are provided. The mask includes an opaque region with at least one a transparent slit in the...
6956881 Stacked semiconductor laser diode  
The present invention relates to an arrangement of semiconductor diode lasers stacked on top of one another, which is arranged on a substrate ( 1 ). A first diode laser ( 12 ) is arranged on the...
6956808 Optical device and optical sensor  
An aperture 12 for producing an evanescent wave is provided at an n-Au electrode 106 . The aperture 12 is directed roughly perpendicularly to a direction in which end faces 104 a of an...
6956883 Semiconductor laser device including light receiving element for receiving monitoring laser beam  
A semiconductor laser device has a semiconductor laser element, light receiving element, lead frame, and package. The semiconductor laser element is an element for emitting a laser beam. The light...
6956880 Semiconductor laser module  
A semiconductor laser module comprises a laser diode that emits light in a frontward direction and a rearward direction, an optical fiber that transmits the light emitted in the frontward direction...
6954477 Semiconductor laser device and fabrication method thereof  
A method of fabricating a ridge-waveguide type semiconductor laser device having a large half-value width and a high kink level is provided. First, an effective refractive index difference Δn...
6954473 Optoelectronic device employing at least one semiconductor heterojunction thyristor for producing variable electrical/optical delay  
An optoelectronic integrated circuit includes a resonant cavity formed on a substrate. A heterojunction thyristor device is formed in the resonant cavity and operates to detect an input optical...
6952435 Speckle free laser probe beam  
The present invention contemplates a method and apparatus to generate a laser probe beam free of speckles. The present invention employs a holographic phase plate inserted in a laser beam path to...
6950451 Multi-beam semiconductor laser element  
A multi-beam semiconductor laser device capable of emitting respective laser beams with uniform optical output levels and enabling easy alignment is provided. This multi-beam semiconductor laser...
6950452 Semiconductor laser module and method for simultaneously reducing relative intensity noise (RIN) and stimulated brillouin scattering (SBS)  
A semiconductor laser module including a semiconductor laser device having an integrated diffraction grating configured to output a multiple mode laser beam in the presence of a driving current, an...
6947459 Organic vertical cavity laser and imaging system  
An organic vertical cavity laser light producing device ( 10 ) comprises a substrate ( 20 ). A plurality of laser emitters ( 200 ) emits laser light in a direction orthogonal to the substrate. Each...
6947460 Optically pumpable surface-emitting semiconductor laser device  
In an optically pumpable surface-emitting semiconductor laser device with a vertical emitter with a radiation-generating active layer, at least one modulation radiation source for modulating the...
6947463 Semiconductor laser device for use in a laser module  
A semiconductor laser device, module, and method for providing light suitable for providing an excitation light source for a Raman amplifier. The semiconductor laser device includes an active layer...
6940889 Optical pulse source for long haul optical communication systems  
In accordance with the invention, a modulated RZ pulse source comprises a modulated light source optically coupled to a stabilized Bragg grating filter and one or more optical taps. The light...
6940883 Laser diode  
A laser diode ( 1 ) for outputting light of a single mode comprises a substrate layer ( 5 ), a cladding layer ( 6 ) and a compound light propagating layer ( 7 ) comprising first, second, third and...
6937631 Semiconductor laser device  
A semiconductor laser device which ensures high yield, high reliability and high power output by reduction in tensile strain in its active region for improvement in the COD level. The device...
6937632 Integrated semiconductor laser and waveguide device  
A buried heterojunction laser optically coupled with a buried waveguide electro-absorption (EA) optical modulator via an active layer is fabricated on a substrate carrying a number of deposited...
6937633 Multi-wavelength semiconductor lasers  
A multi-wavelength semiconductor laser is formed by monolithically integrating a plurality of laser diodes ( 1, 2 ) with at least one isolator section ( 3 ) and a coupler ( 4 ), which couples the...
6934312 System and method for fabricating efficient semiconductor lasers via use of precursors having a direct bond between a group III atom and a nitrogen atom  
A system for fabricating a light emitting device is disclosed. The system contains a growth chamber and at least one nitrogen precursor that is introduced to the growth chamber. The at least one...
6934311 Semiconductor laser module and Raman amplifier  
A semiconductor laser module has a Fabry-Perot type semiconductor laser device, an optical fiber, and first and second lenses. The tip of the optical fiber, on which the laser beam falls, is askew...
Matches 351 - 400 out of 964 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >