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| Number | Title | Issue Date |
| 8179936 | Gas-cooled laser device A gas-cooled laser device includes heat dissipative components, and housing walls made of a heat conducting material, in which one or more of the housing walls are provided with ventilation channels. At least one heat dissipative component is mounted on a plate of a... | 05/15/2012 |
| 8170073 | Optically-pumped external-cavity surface-emitting semiconductor lasers with front-cooled gain-structures A semiconductor gain-structure functions as a gain-element in a laser-resonator. The gain-structure is bonded to a diamond heat-spreader that is peripherally cooled by a heat-sink configured to allow access to the gain-structure by laser-radiation circulating in the... | 05/01/2012 |
| 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 two-dimensional array of diode-laser emitters. These differences can produc... | 04/17/2012 |
| 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 active circuitry and signal pads reside. A thermal-control mechanism pr... | 01/03/2012 |
| 8068525 | Solid-state laser element To achieve a solid-state laser element capable of outputting a high-power laser, in a planar waveguide type solid-state laser element that causes a plurality of fundamental laser beams to oscillate in a direction of an optic axis within a flat plate-like laser mediu... | 11/29/2011 |
| 8000360 | Laser diode assemblies Laser diodes (120) emit laser beams along a vertical YZ plane at different distances from the YZ plane. The beams are collimated in their fast and slow axes, and are redirected by turning mirrors (162) to form a beam stack (130C) traveling along... | 08/16/2011 |
| 7991029 | Optical module A cut-out portion of a ground conductor is located in a region where a header faces a flexible board from the junction of a signal pin and a signal line and faces the signal line. The size of the cut-out portion is determined so that the impedance of the signal pin ... | 08/02/2011 |
| 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 core disposed on the heat sink. The slot portions are uniformly spaced... | 06/21/2011 |
| 7949023 | Semiconductor laser apparatus A semiconductor laser apparatus of the present invention includes: a semiconductor laser chip 1 having an electrode 11 formed on a surface of the semiconductor laser chip 1; a heat sink 3 for the semiconductor laser chip 1; a submo... | 05/24/2011 |
| 7949024 | Multibeam arrays of optoelectronic devices for high frequency operation A VCSEL array device formed of a monolithic array of VCSELs and short circuited mesas is disclosed. The VCSELs can be spaced symmetrically or asymmetrical, in a manner to improve power or speed, or in phase and in parallel. The VCSELs are connected to a first metal ... | 05/24/2011 |
| 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 laterally side by side and configured to generate radiation. The laser d... | 04/26/2011 |
| 7889770 | Semiconductor laser device A semiconductor laser beam device, comprising a stem type package having a base part and a heat sink part, wherein the heat sink part is cylindrically formed so as to be concentric to the base part, a groove is formed along the axial direction of the heat sink part,... | 02/15/2011 |
| 7873086 | Semiconductor device In a semiconductor device where a semiconductor element having an asymmetric temperature distribution during an operation is mounted, inner leads on the right and left ends have asymmetric lengths, so that the right and left regions of a semiconductor element mounti... | 01/18/2011 |
| 7864825 | Method and system for a laser diode bar array assembly A laser diode array is formed on a heat sink having an insulating layer in which a plurality of grooves is formed through the ceramic layer and to or into the heat sink. A laser diode stack is soldered to the ceramic layer. ... | 01/04/2011 |
| 7856038 | Light-emitting module installing thermo-electric controller There is provided a light-emitting module which suppresses wavelength drift. A light-emitting module according to the invention includes a stem and a cap fixed to the upper surface of the stem. A thermo-electric cooler is mounted on the stem and a base is mounted on... | 12/21/2010 |
| 7848372 | Modular diode laser assembly An extremely versatile diode laser assembly is provided, the assembly comprised of a plurality of diode laser subassemblies mounted to a stepped cooling block. The stepped cooling block allows the fabrication of a close packed and compact assembly in which individua... | 12/07/2010 |
| 7848371 | Laser device formed by a stack of laser diodes The laser device (22) is formed by a stack of laser diodes (4) arranged on plates (6) formed of a material that is electrically conductive and a good heat conductor. In order to obtain a high level of heat evacuation efficiency towards the cooli... | 12/07/2010 |
| 7839908 | Mode control waveguide laser device Provided is a device capable of oscillating a plurality of oscillation modes within a laser medium for obtaining a fundamental wave output which is easy in output scaling and high in luminance, thereby enabling a second harmonic conversion which is high in efficienc... | 11/23/2010 |
| 7826503 | Extended tuning in external cavity quantum cascade lasers In a semiconductor lasers using quantum well gain medium, a quantum well stack is mounted in an epi-down configuration. The epitaxial side of the device may be directly bonded to an efficient heat transport system so that heat may more easily leave the quantum well ... | 11/02/2010 |
| 7817689 | Laser source device, display device, and projector A laser source device includes: a plurality of lasers; wavelength converting elements that convert wavelengths of a plurality of light beams emitted from the plurality of lasers; a temperature sensor that detects the temperatures of the wavelength converting element... | 10/19/2010 |
| 7804867 | Apparatus for dissipating heat in electro-optical communications systems A laser mounted in a casing is driven by and mounted close to its driving circuit. To reduce the effect on the laser of heat generated by the driver circuit, the casing includes a passive heat sink element on which the driver circuit is mounted whereby heat generate... | 09/28/2010 |
| 7801191 | Semiconductor laser device In a semiconductor laser device, in a case where an emission direction of a laser beam from a semiconductor laser element portion is a front side, a first front end of a first lead is arranged rearward beyond a first rear end of a second heatsink, and a second surfa... | 09/21/2010 |
| 7801190 | Carrier for a vertical arrangement of laser diodes with a stop A laser radiation source which is scalable with respect to output is designed in such a way that laser diode elements can be arranged on a carrier so as to be stacked equidistantly and with low stress at a low manufacturing cost. The laser radiation source comprises... | 09/21/2010 |
| 7738518 | Extended tuning in external cavity quantum cascade lasers In a semiconductor lasers using quantum well gain medium, a quantum well stack is mounted in an epi-down configuration. The epitaxial side of the device may be directly bonded to an efficient heat transport system so that heat may more easily leave the quantum well ... | 06/15/2010 |
| 7733932 | Laser diode assemblies Laser diodes (120) emit laser beams along a vertical YZ plane at different distances from the YZ plane. The beams are collimated in their fast and slow axes, and are redirected by turning mirrors (162) to form a beam stack (130C) traveling along... | 06/08/2010 |
| 7724791 | Method of manufacturing laser diode packages and arrays A laser diode package according to the present invention is composed of CTE mismatched components soldered together. The laser diode package includes a laser diode bar, at least one heat sink, and at least one exothermic layer. Solder layers are adjacent the heat si... | 05/25/2010 |
| 7715456 | Semiconductor laser device A semiconductor laser device has at least one semiconductor laser element, a heat sink having a first bearing area, on which the at least one semiconductor laser element bears, a housing upper part and a housing lower part, which, in the interconnected state, can at... | 05/11/2010 |
| 7711020 | Optical pick-up apparatus and optical disk apparatus An exemplary optical pick-up apparatus of the invention comprises: an optical base; a collimator lens provided on the optical base; a laser source disposed adjacent the collimator lens on the optical base and emitting light that produces heat; and temperature gradie... | 05/04/2010 |
| 7706421 | Temperature sensing device patterned on an electro-optic transducer die An optical transmit assembly having a temperature sensor patterned on an electro-optic transducer die. Due to the close proximity of the electro-optic transducer junction and the temperature sensor, the temperature sensor more accurately measures the temperature of ... | 04/27/2010 |
| 7668215 | Apparatus for dissipating heat in electro-optical communications systems A laser mounted in a casing is driven by and mounted close to its driving circuit. To reduce the effect on the laser of heat generated by the driver circuit, the casing includes a passive heat sink element on which the driver circuit is mounted whereby heat generate... | 02/23/2010 |
| 7656916 | Semiconductor light emitting device and method for fabricating same A nitride semiconductor device includes a stem. A heat sink is provided on the stem. At least one nitride semiconductor light-emitting element is connected to the heat sink. A light-detecting element for detecting light from the semiconductor light-emitting element ... | 02/02/2010 |
| 7653100 | Solid laser module, optical amplifier, and laser oscillator The present invention relates to a solid-state laser module, and so on, having a structure for enabling optical output of high quality to be obtained. The solid-state laser module includes a vacuum container with windows, and a heat sink, a solid-state laser medium,... | 01/26/2010 |
| 7586962 | Integrated diamond carrier for laser bar arrays A mounting improvement for the solid state laser bars used for example to pump high power lasers is provided. Solid state laser bars are mounted in side by side relationship and combined with integrated substrate and laser output directing optical elements on a disc... | 09/08/2009 |
| 7586963 | Modular diode laser assembly An extremely versatile diode laser assembly is provided, the assembly comprised of a plurality of diode laser subassemblies mounted to a stepped cooling block. The stepped cooling block allows the fabrication of a close packed and compact assembly in which individua... | 09/08/2009 |
| 7586964 | Laser package and laser module A laser package has at least one laser device and a hermetically sealed package including a package base and a cap having a light transmissive window for emitting light. The at least one laser device is placed in the package and fixed onto the package base. Further,... | 09/08/2009 |
| 7570679 | Wide temperature range uncooled transceiver module for uncontrolled environments A laser transmitter within an optical transceiver includes a heating element. The heating element is coup led to the laser package and is controlled to allow the laser to be heated to a higher temperature than the ambient temperature when low environmental temperatu... | 08/04/2009 |
| 7567599 | Semiconductor laser diode device with thermal conductive encapsulating resin and method for manufacturing the same A semiconductor laser diode device comprises a semiconductor laser diode, a primary lead having a sub-mount for mounting the semiconductor laser diode, at least one secondary lead electrically insulated from the primary lead, a first resin member for integrally fixi... | 07/28/2009 |
| 7548569 | High-power optically end-pumped external-cavity semiconductor laser A high-power optically end-pumped external-cavity semiconductor laser is provided having a laser chip including an active layer and a distributed Bragg reflector (DBR) for emitting light of a fundamental wavelength; an external mirror spaced apart from a first surfa... | 06/16/2009 |
| 7542496 | Semiconductor laser device, light scanner, and image forming apparatus A semiconductor laser device including an edge-emitting type laser chip having at least three emitting points in one light emitting edge, a sub-mount mounted with the laser chip, and a heat sink bonded to the sub-mount through a solder layer. When R designates a lin... | 06/02/2009 |
| 7508854 | Semiconductor laser device A semiconductor laser device of the present invention is provided with a base portion (2) having a horizontal top surface (S), a heat sink portion (3) that has a vertical element mount surface (7) and is located above the top surface (S) of the ... | 03/24/2009 |
