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| Number | Title | Issue Date |
| 8023542 | High energy laser thermal management Methods and systems are disclosed for cooling a laser, such as a high average power (HAP) solid state laser (SSL). A coolant that has been heated from previous use can be conditioned by transferring heat from the coolant to a phase change medium. The conditioned coo... | 09/20/2011 |
| 7957439 | Microchannel cooler for high efficiency laser diode heat extraction A laser diode package includes a laser diode, a cooler, and a metallization layer. The laser diode is used for converting electrical energy to optical energy. The cooler receives and routes a coolant from a cooling source via internal channels. The cooler includes a... | 06/07/2011 |
| 7949022 | Diode pumping of a laser gain medium An integrated, low profile, high power laser light emission device is disclosed. The integrated laser light emission device provides uniform heat dissipation, as well as uniform pumping of the laser gain medium without the need for a pumping cavity. The laser system... | 05/24/2011 |
| 7944956 | Heat sink, laser apparatus provided with such heat sink, and laser stack apparatus A heat sink has a first flat plate, a partition plate, and a second flat plate. The first flat plate has an upper surface in which a first recess is formed. The second flat plate has a lower surface in which a second recess is formed, and an upper surface on which a... | 05/17/2011 |
| 7885299 | Semiconductor laser equipment The present invention relates to a semiconductor laser apparatus having a structure for preventing the corrosion of a refrigerant flow path in a heat sink and for cooling a semiconductor laser array stably over a long period of time. The semiconductor laser apparatu... | 02/08/2011 |
| 7881351 | Laser module A laser module (1) with at least two laser units (3) are adjusted such that the emitted beams of the laser units (3) converge. The laser units (3) exhibit cooling channels (5) that are provided with a cooling medium. At least one o... | 02/01/2011 |
| 7809033 | Laser oscillator A laser oscillator is obtained in which the flatness of an optical element that makes contact with a cooling flange is maintained in a highly precise state, by suppressing a flange presser and a base from profile-deforming the cooling flange. The flange presser and ... | 10/05/2010 |
| 7760778 | Thin-film evaporative cooling for side-pumped laser A system and method are provided for cooling a crystal rod of a side-pumped laser. A transparent housing receives the crystal rod therethrough so that an annular gap is defined between the housing and the radial surface of the crystal rod. A fluid coolant is injecte... | 07/20/2010 |
| 7715455 | Solar light pumped laser and cooling method of solar light pumped laser Object: To provide a solar light pumped laser and a cooling method of a solar light pumped laser. Means for Solving the Problems: A solar light pumped laser performing laser oscillation by pumping a laser medium with solar light, the solar light pumped laser ... | 05/11/2010 |
| 7656915 | Microchannel cooler for high efficiency laser diode heat extraction A laser diode package includes a laser diode, a cooler, and a metallization layer. The laser diode is used for converting electrical energy to optical energy. The cooler receives and routes a coolant from a cooling source via internal channels. The cooler includes a... | 02/02/2010 |
| 7633980 | Phase change based cooling for high burst mode heat loads with temperature regulation above the phase change temperature An apparatus and method for transferring thermal energy from a heat load is disclosed. In particular, use of a phase change material and specific flow designs enables cooling with temperature regulation well above the fusion temperature of the phase change material ... | 12/15/2009 |
| 7567598 | Semiconductor laser equipment This invention relates to a semiconductor laser apparatus having a structure to prevent corrosion in a refrigerant flow path of a heat sink and cool stably a semiconductor laser array over a long period. The semiconductor laser apparatus has a semiconductor laser st... | 07/28/2009 |
| 7548568 | Portable laser device A hand-held laser device includes a casing formed with a substantially hollow interior space and having a laser emitter thereinside. The laser emitter is formed with an exciting lamp and a laser rod. A source generating a stream of gaseous coolant is provided within... | 06/16/2009 |
| 7539224 | Scalable zig-zag laser amplifier A high power laser system is provided having a master oscillator for generating a reference laser beam of desired beam quality, means for dividing the reference beam into multiple sub-beams, a multi-slab gain module positioned to receive the multiple sub-beams as in... | 05/26/2009 |
| 7522643 | Semiconductor laser device The present invention relates to a semiconductor laser apparatus having a metal body which efficiently cools a semiconductor laser element, in which joining of copper-made members coated with DLC layers and prevention of corrosion in the vicinity of joined portions ... | 04/21/2009 |
| 7486710 | Semiconductor laser device and method of manufacturing the same A semiconductor laser device 1 comprises: a heat sink 20, in turn comprising a main cooler unit 21, formed by joining metal members, a fluid channel 30, formed inside the main cooler unit 21, a cooling region 23 on an outer ... | 02/03/2009 |
| 7466732 | Laser diode package with an internal fluid cooling channel A laser diode assembly has a laser diode. The laser diode has an emitting surface and a reflective surface opposing the emitting surface. The laser diode has first and second side surfaces between the emitting and reflective surfaces. A first electrically-insulating... | 12/16/2008 |
| 7443895 | 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... | 10/28/2008 |
| 7436868 | 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... | 10/14/2008 |
| 7433376 | Zig-zag laser with improved liquid cooling A zig-zag laser has the ability to generate a high power beam while effectively removing heat without degrading the beam quality. The laser has a series of gaps interposed between the thin slabs, the gain medium, and between the thin slabs and the quartz windows to ... | 10/07/2008 |
| 7430230 | Tube solid-state laser An improved tube solid-state laser (SSL) is provided utilizing diode pumping, microchannel cooling, optics, and/or new coating and bonding processes. In one example, an amplifier module for the SSL includes a tube of laser gain material, a first substrate and a seco... | 09/30/2008 |
| 7428257 | Apparatus for optical pumping of a laser-active solid body An apparatus for optically pumping a laser-active solid body with pumping light coupled into the solid body through an end surface of the solid body is disclosed. The apparatus includes a laser-active solid body including an end surface though which pumping light is... | 09/23/2008 |
| 7420996 | 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... | 09/02/2008 |
| 7415052 | Low stress, high thermal conduction laser rod mounting A mount for suspending a laser medium has a cross section profile. The mount is configured to conduct heat away from the laser medium without imparting undue stress. The mount includes a laser host medium having a first cross section profile. A heat sink defines a b... | 08/19/2008 |
| 7406829 | Cryogenic liquid oxidizer cooled high energy system A high energy system comprising a high energy electrical device powered by an electrical generator both of which are cooled by a cryogenic liquid oxidant stored in a storage tank. A power turbine powered by a combustor using fuel and the oxidant drives the electrica... | 08/05/2008 |
| 7406109 | Hand held laser for medical treatment A hand held laser for treating a skin condition includes a housing comprising a first end, a second end and a cavity therein wherein the cavity includes a substantially light reflective surface and wherein the housing comprises at least one fin extending from an ext... | 07/29/2008 |
| 7386022 | Laser beam transmitter A laser oscillator includes a light condensing block having a through-hole for housing a laser medium, and an aperture for introducing excitation light from an excitation light source module into the through-hole; an end plate fixed to an end of the light condensing... | 06/10/2008 |
| 7371615 | Heat sink and method for its production A method for producing a heat sink for cooling a semiconductor device including forming plural base members, the base member being each in plate or block-shape, the base member each having paths shaped on one or both sides of surfaces thereof, and the base member ea... | 05/13/2008 |
| 7367360 | Integrated piping plate, machining method for same, machining apparatus for same, and machining equipment for same A machining method for an integrated piping plate, for example, composed of a plurality of plates joined together, and in which an instrument and a component constituting an apparatus, or the instrument, or the component are or is disposed on one surface or both sur... | 05/06/2008 |
| 7369589 | Diode laser subelement and arrangements with such diode laser subelement Expansion-adapted mounting and electrical contacting of laser diode elements are connected with one another in terms of structural engineering such that the laser diode elements can be stacked or arranged laterally in one plane for producing vertical diode laser arr... | 05/06/2008 |
| 7365464 | Composite rotor and output shaft for galvanometer motor and method of manufacture thereof A rotor is disclosed for a galvanometer system. A rotor includes a permanent magnet core, a sleeve and at least one shaft unit. The sleeve encloses and attaches to at least a portion of the permanent magnet core. The sleeve is formed of a material having a density o... | 04/29/2008 |
| 7366211 | Laser containing a distributed gain medium A laser device which may be used as an oscillator or amplifier comprising a chamber having a volume formed therein and a gain medium within the volume. The gain medium comprises a solid-state element containing active laser ion within the volume. A cooling fluid flo... | 04/29/2008 |
| 7361978 | Laser diode packaging A laser diode package includes a heat sink, a laser diode, and an electrically nonconductive (i.e. insulative) substrate. The laser diode has an emitting surface and a reflective surface opposing the emitting surface. The laser diode further has first and second sid... | 04/22/2008 |
| 7360903 | Light source device, method for manufacturing light source device, and projection type display apparatus Exemplary embodiments of the invention provide a light source device to cool a solid-state light source at a high efficiency even in a case where a large quantity of heat has developed from the solid-state light source including a minute heat generation region. A li... | 04/22/2008 |
| 7356057 | Wide temperature range vertical cavity surface emitting laser A vertical cavity surface emitting laser (VCSEL) module that is configured to operate in a wide temperature range without severely minimizing its lifetime or requiring excessive drive current. The VCSEL portion of the VCSEL module is tuned to operate efficiently at ... | 04/08/2008 |
| 7356066 | Solid state laser A solid body laser has a crystal disk forming its laser active medium. A flat side of the crystal disk is totally reflecting. A resonator mirror configuration includes a partially transparent end mirror and one or more folding mirrors, which are disposed with spatia... | 04/08/2008 |
| 7349453 | Direct impingement cooling of a laser diode array A laser diode array assembly. The assembly includes a plurality of vertical emitting laser diodes. Each laser diode has a vertical emitting surface and an exposed substrate surface opposite from the emitting surface. Each vertical emitting surfaces emit a laser beam... | 03/25/2008 |
| 7338575 | Hydrocarbon dielectric heat transfer fluids for microwave plasma generators A process and apparatus for cooling a plasma tube generally includes flowing a hydrocarbon dielectric heat transfer fluid into a space defined by the plasma tube and a concentric tube surrounding the plasma tube. In one embodiment, the hydrocarbon fluid is selected ... | 03/04/2008 |
| 7310360 | Apparatus and method for face cooling of optical components of a laser system A cooling system for use in with a transmissive optical element of a high average power laser (HAP). The system includes at least one optically transmissive element (TOC) that is held by a differential pressure in thermal contact with a heat sink assembly. In one em... | 12/18/2007 |
| 7308008 | Magnetically controlled heat sink A system and method for controlling the temperature of a heat-generating component such as a laser. A microelectromechanical system for controlling the temperature of the heat-generating component includes a magnetic heat sink device, a temperature sensor, and contr... | 12/11/2007 |
