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Particular Temperature Control

Particular Temperature Control patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

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Coherent Light Generators


Particular Temperature Control



Gas laser having a heat exchanger
12/04/14 - - A gas laser includes a fan for producing a flow of a laser gas and a heat exchanger including multiple heat exchanger pipes. The heat exchanger further includes two end plates to which the multiple heat exchanger pipes are secured at the opposing ends thereof. The two end plates include...

Hyperbolic metamaterials as distributed bragg mirrors for high power vcsel devices
11/27/14 - 20140348191 - Implementing a layered hyperbolic metamaterial in a vertical cavity surface emitting laser (VCSEL) to improve thermal conductivity and thermal dissipation thereby stabilizing optical performance. Improvement in the thermal management and power is expected by replacing the distributed Bragg reflector (DBR) mirrors in the VCSEL. The layered metamaterial structure performs the...

Method of controlling temperature of semiconductor laser, temperature control device of semiconductor laser and non-transitory computer-readable medium
11/20/14 - 20140341240 - A method of controlling a temperature of a semiconductor laser includes: controlling a supply current so that a temperature of a temperature control element is changed to a target temperature, the temperature control element controlling a temperature of the semiconductor laser by a temperature changing according to the supply current...

Projection rgb-laser light source with stabilized color balance
11/20/14 - 20140341241 - A laser light source includes a thermoelectric cooling device, a composite green laser made up of an infrared wavelength pumped laser diode and a solid-state laser cavity designed for efficient nonlinear intra-cavity frequency conversion into desired wavelengths using periodically poled nonlinear crystals thermally coupled with the cooling device and a...

Mount for semiconductor devices using conformable conductive layers, and method
11/13/14 - 20140334507 - A mount for semiconductor laser devices comprises thermally conductive anode and cathode blocks on either side of a semiconductor laser device such as a laser diode. Interposed between at least the anode block and the anode of the semiconductor laser device is a sheet of conformable electrically conductive material with...

Tunable laser with high thermal wavelength tuning efficiency
10/30/14 - 20140321488 - A monolithically integrated thermal tunable laser comprising a layered substrate comprising an upper surface and a lower surface, and a thermal tuning assembly comprising a heating element positioned on the upper surface, a waveguide layer positioned between the upper surface and the lower surface, and a thermal insulation layer positioned...

Laser source assembly with thermal control and mechanically stable mounting
10/23/14 - 20140314110 - A laser source (340) comprises a first frame (356), a laser (358), and a first mounting assembly (360). The laser (358) generates an output beam (354) that is directed along a beam axis (354A). The first mounting assembly (360) allows the laser (358) to expand and contract relative to the...

Thermal management in packaged vcsels
10/23/14 - 20140314111 - Heat management systems for vertical cavity surface emitting laser (VCSEL) chips are provided. Embodiments of the invention provide substrates having, a vertical cavity surface emitting laser chip disposed on the substrate surface and electrically interconnected with the substrate, a thermal frame disposed on the substrate surface and proximate to at...

Laser assembly and method for manufacturing the same
09/18/14 - 20140269795 - A laser assembly and a method for manufacturing the same are provided according to embodiments of the present disclosure. The laser assembly (900) may comprise a first plate (903) having first projections (918, 928); a printed circuit board assembly (902) including a printed circuit board (912) having first openings (913,...

Multi-wavelength vcsel array to reduce speckle
09/18/14 - 20140269796 - Embodiments of the invention describe an illuminator having a light source to originate an illumination beam, wherein the light source further comprises a set of vertical-cavity surface emitting lasers (VCSELs), including a first VCSEL having a first laser emission wavelength, and a second VCSEL having a second laser emission wavelength...

Wavelength tunable semiconductor laser having two difractive grating areas
09/04/14 - 20140247844 - A semiconductor laser has a first diffractive grating area. The first diffractive grating area has a plurality of segments. Each segment has a first area including a diffractive grating and a second area that is space area combined to the first area. Optical lengths of at least two of the...

Laser device and method for generating laser light
09/04/14 - 20140247845 - The invention refers to a laser device comprising a plurality of linear resonator tubes (12) for a gas to be excited, the resonator tubes being in fluidic communication with each other and forming a common tubular space, connecting elements (20) arranged in corners between adjacent resonator tubes of a common...

Thermal shunt
07/24/14 - 20140204967 - A thermal shunt is to transfer heat from a sidewall of a device to a silicon substrate. The device is associated with a Silicon-On-Insulator (SOI) including a buried oxide layer. The thermal shunt extends through the buried oxide layer to the silicon substrate....

Resonant cavity conditioning for improved nonlinear crystal performance
05/29/14 - 20140146838 - Systems and methods to improve the performance of nonlinear crystals in a resonant cavity are presented. A humidified purge gas is supplied to a resonant cavity of a laser based illumination source that includes a nonlinear crystal. A small amount of water vapor is added to a clean, dry purge...

Methods of driving laser diodes, optical wavelength sweeping apparatus, and optical measurement systems
04/24/14 - 20140112361 - An optical wavelength sweeping apparatus having a laser diode with an active region, and a coupled pulse generator is disclosed. The pulse generator is configured and operable to provide current drive pulses of relatively short duration and high amplitude to the laser diode to selectively and rapidly heat the active...

Gas laser device
04/24/14 - 20140112362 - A CO2 gas laser device according to the present invention amplifies CO2 laser light that oscillates repeatedly in short pulses having a pulse width of 100 ns or less, and cools a CO2 laser gas which is excited by continuous discharge by circulating the CO2 laser gas by means of...

Gas laser having a heat exchanger
04/03/14 - 20140092928 - A gas laser includes a fan for producing a flow of a laser gas and a heat exchanger including multiple heat exchanger pipes. The heat exchanger further includes two end plates to which the multiple heat exchanger pipes are secured at the opposing ends thereof. The two end plates include...

Optical module and method of controlling optical module
03/20/14 - 20140079083 - Provided is an optical module in which a temperature of a semiconductor element to be subjected to temperature control is controlled to fall within a desired operating temperature range regardless of whether an environmental temperature is outside or inside the operating temperature range of the semiconductor element, and which is...

Wavelength-stabilized diode laser
03/13/14 - 20140072004 - A hybrid external cavity laser (HECL) system comprises a diode laser, collection and collimation optics, and a volume Bragg grating, emits radiation at a single wavelength with a short-term wavelength stability in the order of at least one part in a billion The wavelength stability is achieved by use of...

Optical module with enhanced robustness of temperature controlling device
03/13/14 - 20140072005 - An optical assembly (OSA) that installs a semiconductor optical device mounted on a thermo-electric controller (TEC) is disclosed. The TEC in the upper plate thereof is mechanically connected to the housing, or to the block stiffly fixed to the housing by a bridge made of stiff material. The bridge preferably...

Temperature measurement and control for laser and light-emitting diodes
02/27/14 - 20140056322 - The existing diodes in an LED or laser diode package are used to measure the junction temperature of the LED or laser diode. The light or laser emissions of a diode are switched off by removing the operational drive current applied to the diode package. A reference current, which can...

Device for managing heat in an optical element, and related heat-management method
02/06/14 - 20140036946 - A device is provided for managing heat in an optical element, including: the optical element; a material at a reference temperature; and an intermediate gas layer located directly between the reference-temperature material and the optical element, the intermediate gas layer being located on at least a portion of the thickness...

Metal vapor circulating system
01/23/14 - 20140023100 - A system for circulating an alkali vapor to operate as, for example, a gain medium in a diode pumped alkali laser. The system includes a pump configured to pump a buffer gas to a metal source. A source heat exchanger heats the alkali metal source to produce a metal vapor...

Single-cavity dual-electrode discharge cavity and excimer laser
01/23/14 - 20140023101 - A single-cavity dual-electrode discharge cavity and an excimer laser including such a discharge cavity are disclosed. The discharge cavity may comprise a cavity body and two sets of main discharge electrodes. The cavity body may comprise a left chamber and a right chamber arranged to form a symmetric dual-chamber cavity....

Laser gain module and method for producing such a module
12/19/13 - 20130336347 - According to one embodiment, the invention relates to a laser gain module (1) comprising: a laser rod (5) having a shaft and two optical interfaces (7, 9) facing each other, the rod (5) being used for longitudinal or quasi-longitudinal optical pumping; and a metal cooling body (3), at least one...

Semiconductor laser
11/21/13 - 20130308666 - A semiconductor laser includes: a first reflector that is provided in a gain region and has a sampled grating in which a plurality of segments are combined; and a second reflector that is optically connected to the first reflector and has a sampled grating in which a plurality of segments...

Methods for manufacturing and using solid state laser systems having cladded lasing materials
10/31/13 - 20130287052 - In one embodiment, the instant invention is an optical structure that includes: an optical active medium of a solid state laser, where the optical active medium has a first coefficient of thermal expansion; and a protective structure that is directly cladded a portion of the optical active medium, where the...

Laser diode devices
10/17/13 - 20130272329 - A laser diode device including a housing having a mounting area in a cavity of the housing, at least one laser diode chip that emits electromagnetic radiation through a radiation exit area during operation, at least one covering element which is transmissive, at least in places, to the electromagnetic radiation...

Laser element having a thermally conductive jacket
09/26/13 - 20130250984 - A laser element includes a laser rod and a thermally conductive jacket on an exterior surface of the laser rod. The thermally conductive jacket assists in dissipating heat generated in the laser rod during the application of pump energy to the laser rod....

Laser crystal components joined with thermal management devices
09/19/13 - 20130243017 - A method for preparing a surface of a YAG crystal for thermal bonding includes performing an ion implantation process to introduce nitrogen into a surface layer of the YAG crystal to replace depleted oxygen therein, to change surface energy of the surface layer of the YAG crystal and to provide...

Excimer laser and laser device
08/15/13 - 20130208744 - An excimer laser may include a frame, a base plate on which the frame is disposed, an excimer laser configured to oscillate and output laser light by discharge-pumping within a chamber containing a laser gas, an optical element that is mounted upon the frame and that is disposed in the...

Heat-swap device and method
08/15/13 - 20130208745 - A TOSA can include: a light emitting element; and one or more heating elements thermally coupled to the light emitting element so as to provide a substantially constant heat generation profile and/or temperature profile across the TOSA during a light emitting element dormant period and a light emitting element firing...

Laser system with wavelength converter
08/15/13 - 20130208746 - The present invention relates to an apparatus comprising a diode laser (10) providing radiation in a first wavelength interval, a radiation conversion unit (12) having an input and an output, the radiation converter configured to receive the radiation in the first wavelength interval from the diode laser at the input,...

Laser machine and controlling method of laser machine
07/04/13 - 20130170514 - A laser machine includes a laser oscillator, a cooler for cooling the laser oscillator, and a control unit for controlling the laser oscillator and the cooler. The control unit includes a controller that stops base discharge of the laser oscillator at a time when a specified time has elapsed from...

Quantum cascade laser source with ultrabroadband spectral coverage
06/13/13 - 20130148678 - A broadband quantum cascade laser includes multiple gain regions and a spacer layer disposed between at least two of the gain regions. The arrangement and characteristics of the gain regions and the spacer layer may be configured to reduce cross absorption between the gain regions. For example, one gain region...

Optical amplifier and laser incorporating such an amplifier
06/06/13 - 20130142208 - A high-gain optical amplifier for a wave to be amplified at a wavelength referred to as the emission wavelength, includes: optical pumping elements (4) producing a pump wave at a wavelength referred to as the pump wavelength; a solid amplifying medium (1) that is doped with active ions, the solid...

Mounting base for a laser system
04/11/13 - 20130089114 - A laser source assembly (10) comprises a laser system (228), a mounting base (226), and a temperature control system (229). The mounting base (226) supports the laser system (228). The mounting base (226) includes a side wall (232) having a side top (232T) and a side bottom (232B), and a...

Thermal conduction path for a heat-sensitive component
02/21/13 - 20130044775 - A thermal conduction path for a heat-sensitive, heat-generating component is formed by placing a heat-generating device, such as a laser diode, in a desired orientation relative to a supporting surface. A solid-phase mass of a heat-conducting material is positioned between the heat-generating device and the supporting surface and is converted...

Integrated advanced heat spreader for solid-state laser systems
02/21/13 - 20130044776 - A thermal management apparatus and method for a solid-state laser system enabling the laser system to have near isothermal temperatures across and throughout a solid-state gain material, by mechanically controlling an oscillating heat pipe having effective thermal conductivity of 10-20,000 W/m*K; bonding a solid-state lasing crystal or ceramic to the...

Optical transmitter with stable output wavelength
02/21/13 - 20130044777 - An optical transmitter is disclosed, where the optical transmitter shows an emission wavelength kept stable in one of grid wavelengths of the WDM system during the boot of the transmitter. The optical transmitter includes an LD, a TEC to control a temperature of the LD, and a controller. Detecting the...

Optical transmitter for stabilizing output wavelength
01/31/13 - 20130028278 - An optical transmitter implemented with an LD whose temperature is stably controlled is disclosed. A temperature of the LD is continuously monitored; and a difference from the target temperature and a time derivative thereof are calculated. When the time derivative becomes substantially zero, that is, the difference becomes an extremum,...

Gas laser having radial and axial gas bearings
01/24/13 - 20130022065 - A fan for circulating laser gas in a gas laser, the fan having a shaft which is supported by at least one radial bearing and at least one axial gas bearing. The axial gas bearing has at least two rotating bearing faces, one or both being structured with a groove...

Laser device and method for manufacturing same
01/24/13 - 20130022066 - A laser device includes: a semiconductor laser element having an output surface; an optical fiber having a leading end portion facing the output surface of the semiconductor laser element; and an optical fiber supporting member for supporting the optical fiber, the optical fiber supporting member being made from a non...

Laser device
01/24/13 - 20130022067 - The laser device includes a semiconductor laser element having an emission surface from which laser light is emitted, an optical fiber having an end part facing the emission surface, and an optical fiber supporting member which (i) supports the optical fiber and (ii) has a bonding pad to which the...

Handheld laser small arm
11/29/12 - 20120300803 - A hand-held laser weapon including: a laser module for generating a laser light; a telescope module fiber optically coupled to the laser module for focusing the laser light on a target; a burst power module, including a storage capacitor, for storing electrical energy capable of a rapid release in the...

Laser array light source unit
11/15/12 - 20120287954 - A laser array light source unit 1 includes: a plurality of semiconductor lasers 2 each including a main body portion 2a and a leg portion 2b with two leading electrodes; a laser holder 3 holding the main body portions 2a, and having through-holes for the leg portions 2b; a pressing...

Low chirp coherent light source
06/28/12 - 20120163405 - A coherent light source having a semiconductor laser resonator and an optical amplifier which amplifies coherent light emitted by the semiconductor laser resonator in response to current injection, in which the amount of current injected into the semiconductor laser is controlled for conformity with a chirp requirement of an optical...

Laser crystal components joined with thermal management devices
06/14/12 - 20120147913 - A method for preparing a surface of a YAG crystal for thermal bonding includes performing an ion implantation process to introduce nitrogen into a surface layer of the YAG crystal to replace depleted oxygen therein, to change surface energy of the surface layer of the YAG crystal and to provide...

6 khz and above gas discharge laser system
05/17/12 - 20120120974 - A system and method of operating a high repetition rate gas discharge laser system. The system includes a gas discharge chamber having a hot chamber output window heated by the operation of the gas discharge laser chamber, an output laser light pulse beam path enclosure downstream of the hot chamber...

Diode-pumped cavity
05/17/12 - 20120120975 - A side-pumped, diode-pumped solid-state laser cavity includes a conductively cooled housing having an opening for pump radiation from a diode array in close proximity to a laser rod. The pump light is absorbed by the rod and excites the laser ions. The cavity includes a thin, diffuse reflector encircling the...

3d optoelectronic packaging
05/17/12 - 20120120976 - An optoelectronic (OE) package or system and method for fabrication is disclosed which includes a silicon layer with a wiring layer. The silicon layer has an optical via for allowing light to pass therethrough. An optical coupling layer is bonded to the silicon layer, and the optical coupling layer includes...

Component temperature control
04/12/12 - 20120087384 - There is disclosed an electronic apparatus comprising a chip within a casing. A thermoelectric cooler has thermal connections to the chip and the casing and is configured to transport heat from the chip to the casing. A temperature measuring device is provided for determining the temperature of the chip. A...

Flare for battlefield illumination
04/12/12 - 20120087385 - An infrared flare includes at least one diode laser configured to emit radiation in a near-infrared spectrum and an optical system configured to transform the radiation output from the at least one diode laser. Each of the at least one diode lasers are coupled to a laser mount. The infrared...

Optical pumping of a solid-state gain-medium using a diode-laser bar stack with individually addressable bars
02/09/12 - 20120033692 - A diode-laser bar stack includes a plurality of diode-laser bars having different temperature dependent peak-emission wavelengths. The stack is arranged such that the bars can be separately powered. This allows one or more of the bars to be “on” while others are “off”. A switching arrangement is described for selectively...

Semiconductor laser module and suppression member
01/26/12 - 20120020379 - Above a Peltier element disposed on a bottom of a case, bases that are platy members of two or more layers and have different expansion coefficients from each other are stacked. At least on a partial region of the base serving as an uppermost layer, a suppression member having an...

Laser gain medium and laser oscillator using the same
01/12/12 - 20120008654 - A laser gain medium includes an optical medium configured to transmit a laser beam and having an incident face, a first face, a second face opposing to the first face; and gain media configured to amplify the laser beam while reflecting the laser beam. At least one of the gain...

Optical device
12/08/11 - 20110299559 - When environmental temperature becomes low, the quantity of light of the backward output light irradiated onto a light absorber formed on a mount over which a chip is mounted, is increased by a light quantity adjuster, to increase the optical absorption by the light absorber, thereby raising its temperature. As...

Laser diode package with enhanced cooling
11/24/11 - 20110286481 - A laser diode package assembly includes a reservoir filled with a fusible metal in close proximity to a laser diode. The fusible metal absorbs heat from the laser diode and undergoes a phase change from solid to liquid during the operation of the laser. The metal absorbs heat during the...

Temperature measurement and control for laser and light-emitting diodes
10/06/11 - 20110243167 - The existing diodes in an LED or laser diode package are used to measure the junction temperature of the LED or laser diode. The light or laser emissions of a diode are switched off by removing the operational drive current applied to the diode package. A reference current, which can...

Optical pumping structure
09/29/11 - 20110235662 - An optical pumping structure for lasers includes: an active medium in the form of a cylindrical rod with a circular cross-section, said rod being inserted at its ends into two rings made of a thermally conductive material; at least three stacks of pumping diode strips arranged in the form of...

Laser diode structure with reduced interference signals
09/08/11 - 20110216793 - A laser diode structure for generating a collimated or divergent laser beam, preferably for application in gas detection, with a laser diode arranged in a closed housing, with the housing comprising a housing bottom, an exit window, electrical connections, a temperature control device for the laser diode, and an optical...

Laser wavelength stabilization
09/01/11 - 20110211603 - In a coarse wavelength division multiplexing (CWDM) optical transmission system, a distributed feedback (DFB) laser is tuned so that the peak reflection of the grating overlaps with the gain range of the DFB laser. The diffraction grating is tuned so that the peak is positioned on the long wavelength end...

Designs and processes for thermally stabilizing a vertical cavity surface emitting laser (vcsel) in a chip-scale atomic clock
08/04/11 - 20110188524 - Designs and processes for thermally stabilizing a vertical cavity surface emitting laser (vcsel) in a chip-scale atomic clock are provided. In one embodiment, a Chip-Scale Atomic Clock includes: a vertical cavity surface emitting laser (vcsel); a heater block coupled to a base of the vcsel; a photo detector; a vapor...

Terahertz wave emission laser device
08/04/11 - 20110188525 - A laser device having a wave emission within a frequency range of 0.5 to 5 THz, includes a semiconductor heterostructure having a cylindrical form with a circular cross-section and including: a first optically nonlinear semiconductor material layer including an emitting medium configured to emit at least two optical whispering gallery...

Semiconductor laser device
07/07/11 - 20110164634 - A semiconductor laser device includes: a semiconductor laser; a carrier that has a carrier side face facing with a longitudinal direction of the semiconductor laser, has a carrier edge area, and has a first bonding area that is the closest to a first end of the semiconductor laser and a...

Laser resonator gain medium securement
06/30/11 - 20110158271 - A laser resonator comprises a cylindrical gain medium, a cooling system and a coupling member. The cylindrical gain medium comprises a central axis, an outer side surface, two opposing end faces and a first depression in the outer side surface. The cooling system comprises a cooling jacket disposed around the...

Optical module with enhanced robustness of temperature controlling device
06/16/11 - 20110142086 - An optical assembly (OSA) that installs a semiconductor optical device mounted on a thermo-electric controller (TEC) is disclosed. The TEC in the upper plate thereof is mechanically connected to the housing, or to the block stiffly fixed to the housing by a bridge made of stiff material. The bridge preferably...

Semiconductor laser chip, semiconductor laser device, and semiconductor laser chip manufacturing method
06/09/11 - 20110134948 - Provided is a semiconductor laser chip improved more in heat dissipation performance. This semiconductor laser chip includes a substrate, which has a front surface and a rear surface, nitride semiconductor layers, which are formed on the front surface of the substrate, an optical waveguide (ridge portion), which is formed in...

Compact, thermally stable multi-laser engine
06/09/11 - 20110134949 - Various embodiments of a multi-laser system are disclosed. In some embodiments, the multi-laser system includes a plurality of lasers, a plurality of laser beams, a beam positioning system, a thermally stable enclosure, and a temperature controller. The thermally stable enclosure is substantially made of a material with high thermal conductivity...

High power radiation source with active-media housing
04/28/11 - 20110096802 - A high power source of electro-magnetic radiation having a multi-purpose housing is disclosed. The multi-purpose housing includes an interior filled with a material forming at least a light source and further comprising a reflector which can envelope a laser rod surrounded by light sources for providing light excitation to the...

High power semiconductor laser diodes
03/03/11 - 20110051758 - A high power laser source comprises at least a bar of laser diodes with a first coefficient of thermal expansion (CTEbar), a submount onto which said laser bar is affixed with a second coefficient of thermal expansion (CTEsub), and a cooler onto which said submount is affixed with a third...