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Class 372/50.12 - Laser array


Subclass of Class 372 - Coherent light generators
Definition: Subject matter including a group of many similar, basic,
No. of patents: 190
Last issue date: 05/08/2012


1          
NumberTitleIssue Date
8175130Diode 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 corresponding beam parameter product with respect to a slow axis (BPPSA
05/08/2012
8149891Semiconductor 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 facet that is different from a cleaved end fa...
04/03/2012
8130807Diode 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. ...
03/06/2012
8126025Laser 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 wavelength being different from the first wavelength. The first laser arr...
02/28/2012
8023548Diode 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 a contact region. A multi element array having almost flat field dist...
09/20/2011
8000368Modulated 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 the desired wavelength. For modulated applications, an RF voltage is a...
08/16/2011
7991035Surface 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 adjacent to each other, and enables high-density arraying easily. The...
08/02/2011
7965754Spherical 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 waveguide is aligned with the array at an optical coupling distance ...
06/21/2011
7949028Method 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 and are arranged serially end-to-end along the longitudinal direction. ...
05/24/2011
7949029Wavelength 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 and are arranged serially end-to-end along the longitudinal direction. ...
05/24/2011
7944960Integration 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 mediums capable of lasing. Each optical gain medium capable of lasing s...
05/17/2011
7940828Optical 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 surface-emitting laser including an active layer of a multiple quantum...
05/10/2011
7936799Interleaving 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 defining an angular coordinate and a radial coordinate, wherein an axial c...
05/03/2011
7916766Semiconductor laser device and manufacturing method thereof
A first semiconductor laser element is formed on a surface of the first substrate and including a first active layer. A second semiconductor laser element is bonded to the first semiconductor laser element with a first insulating film interposed therebetween. A firs...
03/29/2011
7916767Integration 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 mediums capable of lasing. Each optical gain medium capable of lasing s...
03/29/2011
7903713Multi-beam semiconductor laser
An edge-emitting multi-beam semiconductor laser includes juxtaposed stripe-shaped light-emitting portions the number of which is N (wherein N≧2), wherein a separation groove that electrically separates the light-emitting portions from each other is provided betwee...
03/08/2011
7881355System and method for generating intense laser light from laser diode arrays
Laser modules using two-dimensional laser diode arrays are combined to provide an intense laser beam. The laser diodes in a two-dimensional array are formed into rows and columns, and an optical assembly images light generated by laser diodes in a column into an opt...
02/01/2011
7873090Surface emitting laser, photodetector and optical communication system using the same
A surface emitting laser includes a plurality of light-emitting portions for emitting laser light beams in different linearly polarized light directions. The light-emitting portions are formed on the substrate and located close to each other. The light-emitting port...
01/18/2011
7873091Laser diode illuminator device and method for optically conditioning the light beam emitted by the same
A laser diode illuminator device and a method for optically conditioning the output beam radiated from such a device, so that highly-demanding illumination application requirements that call for high output powers within a specified field of illumination can be addr...
01/18/2011
7843983Semiconductor laser element and manufacturing method thereof
In an element wherein a plurality of ridges (16, 36) are arranged in parallel, supports (17, 37) are formed to sandwich each of the ridges (16, 36). More specifically, on an outer side of the ridge (16) in the element, the first support (...
11/30/2010
7843984Semiconductor laser device
A semiconductor laser device has a red laser element and an infrared laser element on a substrate. The red laser element has a double hetero structure in which an InGaP-based or AlGaInP-based active layer is interposed between a first conductivity type cladding laye...
11/30/2010
7830941Wavelength selective and tunable semiconductor laser device with 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 and are arranged serially end-to-end along the longitudinal direction. ...
11/09/2010
7817694Semiconductor laser apparatus and manufacturing method thereof
A one-chip semiconductor laser device for use in a semiconductor laser apparatus has a structure in which a red semiconductor laser device and an infrared semiconductor laser device are stacked on a blue-violet semiconductor laser device. The blue-violet semiconduct...
10/19/2010
7817693Method and a laser device for producing high optical power density
A method for producing high optical power density. Laser beams emitted from a plurality of laser bars are combined by spatial multiplexing to become substantially parallel with an optical axis. Each single laser bar includes one or more diode lasers. The slow axes o...
10/19/2010
7804874Multibeam laser apparatus and image forming device using the same
A multibeam laser apparatus and an image forming device using the same. The multibeam laser beam apparatus includes a common electrode unit, a plurality of light source units to emit light using the common electrode unit, and an isolating unit to interconnect the co...
09/28/2010
7801196Light source device, lighting device, monitoring device, and image display apparatus
A light source device includes a plurality of first laser emission units and a plurality of second laser emission units for emitting light. The plurality of first laser emission units and the plurality of second laser emission units are disposed on a flat surface. T...
09/21/2010
7792173Semiconductor laser device
In a multi-beam semiconductor laser device, relative difference in shear strain applied to each of light-emitting portions of a laser chip mounted on a submount is suppressed, thereby reducing relative difference in polarization angle. A semiconductor laser element ...
09/07/2010
7773653Diode laser arrangement and associated beam shaping unit
A diode laser apparatus includes a plurality of laser bars, each laser bar having an emission direction and a beam path. The laser bars are disposed along an arc, the emission directions of the laser bars are directed toward an inside of the arc, and a slow-axis dir...
08/10/2010
7769068Spectral-narrowing diode laser array system
A system to increase the brightness of, and control gaps in, the light from an external cavity, spectrally narrowed, stack of diode laser bars employing a stepped mirror and transparent plates in the external cavity. ...
08/03/2010
7764723High brightness laser module
A powerful high-brightness laser pump modules is configured with a plurality of spaced laser diodes each generating a light beam at a pump wavelength, and respective groups of optical components guiding the light beams along parallel light paths. The groups of the o...
07/27/2010
7751458High power laser diode array comprising at least one high power diode laser and laser light source comprising the same
Array comprising high power laser diode comprising laser light emitters, each defining, in a direction perpendicular to direction of propagation of an output laser beam, a fast axis and a slow axis; fast axis collimating means for collimating output laser beams in f...
07/06/2010
7724797Solid-state laser arrays using nonlinear frequency conversion in periodically poled materials
A compact solid-state laser array for nonlinear intracavity frequency conversion into desired wavelengths using periodically poled nonlinear crystals. The crystals contain dopants such as MgO and/or have a specified stoichiometry. A preferred embodiment comprises a ...
05/25/2010
7688875Vertical cavity surface emitting laser array and method for manufacturing, and image forming apparatus using vertical cavity surface emitting laser array
A vertical cavity surface emitting laser array is disclosed which allows wires for individually driving devices arrayed at a small pitch to be provided on the laser array with ease and with a high degree of freedom is provided. The vertical cavity surface emitting l...
03/30/2010
7680170Coupling devices and methods for stacked laser emitter arrays
Methods and devices for coupling the output light energy of one or more stacked laser emitter bar arrays using a beam interleaver and beam combiner to achieve high brightness and coupling efficiency. Some embodiments may include wavelength control devices and method...
03/16/2010
7680171Semiconductor laser device, and image display device
A semiconductor laser device and an image display device that efficiently release a heat from stripe active regions, and operated at a low-consumption current and a low-consumption electric power. A semiconductor laser element includes stripe active regions for emit...
03/16/2010
7664153Laser diode array, optical scanning device and printing apparatus
According to an aspect of the present invention, there is provided a laser diode array including: a laser array chip including: a substrate; and at least three of laser diodes that are formed on the substrate; first electrodes that are formed on each of the laser di...
02/16/2010
7653109Multi-channel laser pump source for optical amplifiers
An optical assembly, such as a multiple output diode laser pump source for EDFAs, is formed by pressing an optical array emitter chip against a standoff structure protruding from a submount such that the emitter chip deforms to match the curvature of the standoff st...
01/26/2010
7653110Semiconductor laser apparatus and method for mounting semiconductor laser apparatus
According to an aspect of the present invention, there is provided a semiconductor laser apparatus including: a laser device including: a semiconductor substrate, first and second resonators formed on the semiconductor substrate, and first and second electrodes that...
01/26/2010
7653108Apparatus and method of establishing optical communication channels between a steerable array of laser emitters and an array of optical detectors
An array of light beam emitter sections comprises: a substrate having a surface divided into an array of sections; and a grouping of light emitters disposed at each surface section and configured to emit light beams at different emission angles with respect to the s...
01/26/2010
7602830Monolithic semiconductor laser and method of manufacturing the same
A monolithic semiconductor laser having plural semiconductor lasers having different emission wavelengths from each other, including: a semiconductor substrate; a first double hetero-structure formed within a first area on the semiconductor substrate and having firs...
10/13/2009
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