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This page is updated frequently with new Lasers-related patent applications. Subscribe to the Lasers RSS feed to automatically get the update: related Lasers RSS feeds. RSS updates for this page: Lasers RSS RSS


Photonic crystal cavities and related devices and methods

Photonic crystal cavities and related devices and methods

Mid-infrared photodetectors

Mid-infrared photodetectors

Mid-infrared photodetectors

Intertial confinement fusion power plant which decouples life-limited component from plant availability

Date/App# patent app List of recent Lasers-related patents
10/09/14
20140301736
 Directly modulated multi-level optical signal generator and method thereof patent thumbnailDirectly modulated multi-level optical signal generator and method thereof
A directly modulated multi-level optical signal generator and a method thereof are provided. The multi-level optical signal generator includes n number of direct modulation lasers (dmls) configured to directly modulate source light into a 2-level optical signal, and an optical power combiner configured to combine n number of 2-level optical signals directly modulated by the respective dmls to generate a 2n-level optical signal..
10/09/14
20140301418
 Photonic crystal cavities and related devices and methods patent thumbnailPhotonic crystal cavities and related devices and methods
Photonic crystal cavities and related devices and methods are described. The described cavities can be used as lasers, photovoltaic sources, and single photon sources.
10/09/14
20140299772
 Mid-infrared photodetectors patent thumbnailMid-infrared photodetectors
Nanoparticles, methods of manufacture, devices comprising the nanoparticles, methods of their manufacture, and methods of their use are provided herein. The nanoparticles and devices having photoabsorptions in the range of 1.7 μm to 12 μm and can be used as photoconductors, photodiodes, phototransistors, charge-coupled devices (ccd), luminescent probes, lasers, thermal imagers, night-vision systems, and/or photodetectors..
09/25/14
20140286471
 Intertial confinement fusion power plant which decouples life-limited component from plant availability patent thumbnailIntertial confinement fusion power plant which decouples life-limited component from plant availability
An architecture for a fusion power plant is disclosed. The plant includes a fusion chamber for producing neutrons from a fusion reaction, and a laser system in which lasers are arranged about a vacuum chamber to provide energy to the fusion chamber to initiate the fusion reaction.
09/25/14
20140286367
 Nanopillar photonic crystal lasers patent thumbnailNanopillar photonic crystal lasers
A nanopillar photonic crystal laser includes a plurality of nanopillars and a support structure in contact with at least a portion of each of the nanopillars. Each nanopillar has an axial dimension and two mutually orthogonal cross dimensions.
09/25/14
20140286362
 High power neodymium fiber lasers and amplifiers patent thumbnailHigh power neodymium fiber lasers and amplifiers
A fiber block is configured with a fiber block including a nd-doped active fiber and a pump-light delivery fiber which has a stretch extending along the active fiber in a side-to-side configuration so as to lunch pump light into the nd-doped core of the active fiber. The core of the active fiber is surrounded by at least one or more claddings which, like the core, have a double bottleneck cross-section with a relatively large-area central region and relatively small input and output regions.
09/18/14
20140273534
 Integration of absorption based heating bake methods into a photolithography track system patent thumbnailIntegration of absorption based heating bake methods into a photolithography track system
A method of patterning a layered substrate is provided that includes forming a layer of a block copolymer on a substrate; and annealing the layer of the block copolymer to affect microphase segregation such that self-assembled domains are formed by application of an absorption based heating method. Exemplary absorption based heating methods include electromagnetic radiation sources such as broadband flash lamps, light emitting diodes, lasers, or duv flash lamps.
09/18/14
20140273323
 Method of manufacture of advanced heterojunction transistor and transistor laser patent thumbnailMethod of manufacture of advanced heterojunction transistor and transistor laser
Methods of manufacture of advanced heterojunction transistors and transistor lasers, and their related structures, are described herein. Other embodiments are also disclosed herein..
09/18/14
20140270783
 Radio-frequency signal repetition and amplification using phase-modulation injection-locked lasers patent thumbnailRadio-frequency signal repetition and amplification using phase-modulation injection-locked lasers
A method and apparatus for regenerating a received radio frequency (rf) signal may mix the received rf signal with a first laser signal, and the result, or a filtered version thereof, may be used to injection-seed a second laser. The result may be mixed with the first laser signal, and the result may be detected to provide a regenerated version of the received rf signal..
09/18/14
20140269802
 Lasers with gapsb barrier layers patent thumbnailLasers with gapsb barrier layers
A laser active region can include a quantum well barrier having gapsb. The active region can include one or more quantum wells, and a quantum well barrier having gapsb bounding each side of each of the one or more quantum wells.
09/18/14
20140269800
Photonic devices and methods of using and making photonic devices
Examples of the present invention include integrated erbium-doped waveguide lasers designed for silicon photonic systems. In some examples, these lasers include laser cavities defined by distributed bragg reflectors (dbrs) formed in silicon nitride-based waveguides.
09/18/14
20140269796
Multi-wavelength vcsel array to reduce speckle
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 different than the first laser emission wavelength. Thus, by varying laser emission wavelengths of vcsels in a vcsel array, embodiments of the invention produce low-contrast speckle, and do not limit the imaging capabilities of the host illumination system.
09/18/14
20140269794
Laser optic protection
The specification and drawings present an apparatus and a method for protecting lasers or other sources of high optical power from damage due to external sources of contamination using a concept of a sacrificial optical component and automatic laser shutdown based on a pressure indication of a substantial damage to the sacrificial optical component such as puncturing through that component.. .
09/18/14
20140269789
Distributed feedback (dfb) brillouin fiber lasers
A brillouin fiber laser uses a distributed feedback (dfb) fiber bragg grating with a discrete π-phase shift, which is offset from the physical center of the grating as a resonator. Lasing is achieved by using the sbs gain in the dfb from narrow-linewidth laser pump radiation with an optical frequency that is higher than the central pass band of the grating by an amount nominally equal to the stokes's frequency shift, νb.
09/18/14
20140269788
Injection locking of gain switched diodes for spectral narrowing and jitter stabilization
Pulse power can be stabilized by applying spectrally narrow pulses to a laser diode during gain switching. An injection locking laser with a narrow emission bandwidth is tuned to a gain bandwidth of a laser diode to be gain switched.
09/18/14
20140268262
Non-mechanical digital/holographic wide angle control of one or more lasers beams.
An apparatus including a laser generating a plane wave beam, a first beam splitter splitting the plane wave beam into a first reference laser beam and at least one ideal input beam, at least one second beam splitter, and an angle-magnifying optical element. The at least one second beam splitter reflects the at least one ideal input beam through the angle-magnifying optical element to generate at least one distorted input beam.
09/18/14
20140268050
Tunable laser array system
A system for swept source optical coherence tomography, the system including a light source emitting multiplexed wavelength-swept radiation over a total wavelength range, the light source including n wavelength-swept vertical cavity lasers (vcl) emitting n tunable vcl outputs having n wavelength trajectories, a combiner for combining the n tunable vcl optical outputs into a common optical path to create the multiplexed wavelength-swept radiation, a splitter for splitting the multiplexed wavelength-swept radiation to a sample and a reference path, an optical detector for detecting an interference signal created by an optical interference between a reflection from the sample and light traversing the reference path, and a signal processing system which uses the interference signal to construct an image of the sample, wherein at least one of the n wavelength trajectories differs from another of the n wavelength trajectories with respect to at least one parameter.. .
09/18/14
20140267533
Inkless printer
An inkless printing device that comprises a plurality of lasers, a rotating polygonal mirror, and an energy recycling unit. The mirror rotates and reflects a laser beam in a manner that allows the beams to reach any point on the paper.
09/18/14
20140263211
Methods for trimming display polarizers using lasers
A display such as a liquid crystal display has a display substrate that includes a layer of liquid crystal material sandwiched between a color filter layer and a thin-film-transistor layer. An oversized polarizer is laminated to the surface of the display substrate.
09/18/14
20140263208
Thermal processing with line beams
Multi-beam, multi-wavelength processing systems include two or more lasers configured to provide respective beams to a substrate. The beams have wavelengths, pulse durations, beam areas, beam intensities, pulse energies, polarizations, repetition rates, and other beam properties that are independently selectable.
09/11/14
20140254619
Method for wideband spectrally equalized frequency comb generation
The present invention relates to method for spectrally equalized frequency comb generation. In order to carry this method, the following steps are followed: seed laser or lasers are modulated to acquire frequency chirp necessary to enable temporal compression and an increase in peak optical intensity necessary for an efficient nonlinear optical mixing process to occur; the compressed waveform is reshaped by nonlinear-transfer optical element and subsequently used to generate frequency comb in nonlinear waveguide.
09/11/14
20140254616
Fiber designs for wavelength tunable ultra-short pulse lasers
Embodiments of the present invention generally relate to fiber designs for wavelength tunable ultra-short pulse lasers. More specifically, embodiments of the present invention relate to systems incorporating fiber designs for higher order mode fibers capable of soliton self frequency shifting where a system comprises a first fiber for shifting the wavelength from a pump wavelength to a transfer wavelength and a second fiber for shifting the pulse from the transfer wavelength to an output wavelength.
09/04/14
20140247854
High-power, phase-locked, laser arrays
High-power, phased-locked, laser arrays as disclosed herein utilize a system of optical elements that may be external to the laser oscillator array. Such an external optical system may achieve mutually coherent operation of all the emitters in a laser array, and coherent combination of the output of all the lasers in the array into a single beam.
09/04/14
20140247850
Multiquantum well structures for suppression of electron leakage and reduction of threshold-current density in quantum cascade lasers
Semiconductor structures for laser devices are provided. The semiconductor structures have a quantum cascade laser structure comprising an electron injector, an active region, and an electron extractor.
09/04/14
20140247841
Vcsel pumped fiber optic gain systems
Optical pump modules comprising vcsel and vcsel array devices provide high optical power for configuring fiber optic gain systems such as fiber laser and fiber amplifier particularly suited for high power operation. Pump modules may be constructed using two reflector or three reflector vcsel devices optionally integrated with microlens arrays and other optical components, to couple high power pump beams to a fiber output port.
09/04/14
20140247316
Marking apparatus
The invention relates to a marking apparatus (100) for marking an object with laser light, comprising a plurality of lasers (10) and a control unit for individually activating each of the lasers to emit a laser beam according to a sign to be marked. A set of deflection means (30) for rearranging the laser beams into a two-dimensional array of laser beams is provided, the set of deflection means (30) comprises at least one deflection means (33) per laser beam, in particular at least one mapping mirror (33) or one optical waveguide per laser beam..
09/04/14
20140246422
Heating configuration for use in thermal processing chambers
An apparatus for heat treating semiconductor wafers is disclosed. The apparatus includes a heating device which contains an assembly linear lamps for emitting light energy onto a wafer.
08/28/14
20140241726
Temperature controlled multi-channel transmitter optical subassembly and optical transceiver module including same
A temperature controlled multi-channel transmitter optical subassembly (tosa) may be used in a multi-channel optical transceiver. The temperature controlled multi-channel tosa generally includes an array of lasers optically coupled to an optical multiplexer, such as an arrayed waveguide grating (awg), to combine multiple optical signals at different channel wavelengths.
08/28/14
20140241717
Dynamic wavelength virtualization and/or on-demand flow provisioning in optical networks
A network apparatus used in an optical network is disclosed. The network apparatus includes one or more first tunable and temperature controlled (ttc) lasers, one or more transmitters each of which is connected to one of said one or more ttc lasers, one or more second ttc lasers, one or more digital signal processing (dsp) transponders (tpnds) each of which is connected to one of said one or more second ttc lasers, one or more receivers, and a controller to control said one or more transmitters and said one or more dsp tpnds, wherein said one or more transmitters defragment an optical access spectrum, and said one or more dsp tpnds exploit a newly available spectrum.
08/28/14
20140240977
Light source system and laser light source
Disclosed are a light source system and a laser light source (300). The laser light source includes two groups of laser groups (20a, 20b), wherein at least one group of laser groups includes at least two lasers (21a, 21b, 21c, 21d), and the light beams (l1) generated by the two groups of laser groups are in the same direction and parallel to each other.
08/28/14
20140240712
Method and system for detecting optical ring resonator resonance frequencies and free spectral range to reduce the number of lasers in a resonator fiber optic gyroscope
A resonator fiber optic gyroscope (rfog) is provided. The rfog includes a gyroscope resonator having a clockwise input port and a counter-clockwise input port; a first laser configured to couple a clockwise optical beam into to the clockwise input port; a clockwise pound-drever-hall modulation generator to modulate the clockwise optical beam with a resonance tracking modulation before the clockwise optical beam is coupled into the clockwise input port; bias correction electronics; fsr-detection-and-servo electronics including a switch communicatively coupled to the clockwise pound-drever-hall modulation generator; a clockwise transmission detector configured to receive an optical beam output from the counter-clockwise input port and output signals to the bias correction electronics and the fsr-detection-and-servo electronics; and a second laser configured to couple a counter-clockwise optical beam into to the counter-clockwise input port, wherein the fsr of the gyroscope resonator is measured based on the pound-drever-hall modulation of the clockwise optical beam..
08/28/14
20140239250
Etched-facet lasers having windows with single-layer optical coatings
An edge-emitting etched-facet optical semiconductor structure has a substrate, an active multiple quantum well (mqw) region formed on the substrate, and a ridge waveguide formed over the mqw region extending in substantially a longitudinal direction between a waveguide first etched end facet and a waveguide second etched end facet. A mask layer used to form windows in which the etched end facets are disposed consists of a single dielectric material disposed directly on the ridge waveguide.
08/28/14
20140237831
Systems and methods for sailboat mast alignment
Systems and methods for sailboat mast alignment are provided. In some embodiments, a system for alignment of a sailboat mast comprises a mounting bracket configured for attachment to the mast, and one or more lasers pivotally connected to the mounting bracket to enable the one or more lasers to be positioned at an index angle relative to the mast on both sides of the mast..
08/21/14
20140236021
Near-infrared super-continuum lasers for early detection of breast and other cancers
A system and method for using near-infrared or short-wave infrared (swir) light sources for early detection and monitoring of breast cancer, as well as other kinds of cancers may detect decreases in lipid content and increases in collagen content, possibly with a shift in the collagen peak wavelengths and changes in spectral features associated with hemoglobin and water content as well. Wavelength ranges between 1000-1400 nm and 1600-1800 nm may permit relatively high penetration depths because they fall within local minima of water absorption, scattering loss decreases with increasing wavelength, and they have characteristic signatures corresponding to overtone and combination bands from chemical bonds of interest, such as hydrocarbons.
08/21/14
20140234865
Instrument and method for optical particle sensing
Devices for detecting particle sizes and distributions using focused light scattering techniques, by passing a sample through a focused beam of light, are disclosed. In one embodiment, the devices include one or more lasers, whose light is focused into a narrow beam and into a flow cell, and dispersions are passed through the flow cell using hydrodynamic sample injection.
08/21/14
20140233596
Semiconductor lasers and etched-facet integrated devices having non-uniform trenches
An edge-emitting etched-facet optical semiconductor structure includes a substrate, an active multiple quantum well (mqw) region formed on the substrate, a ridge waveguide formed over the mqw region extending in substantially a longitudinal direction between a waveguide first etched end facet disposed in a first window and a waveguide second etched end facet disposed in a second window, and first and second trenches having non-uniform widths extending in substantially the longitudinal direction between the first and second windows.. .
08/21/14
20140233041
Computerized movable laser system for radiographic patient positioning
A system for radiographic patient positioning includes at least one laser. An orientation sensor is associated with a laser and the orientation sensor produces tilt data indicative of an orientation of a laser.
08/21/14
20140233022
Apparatus for focus beam analysis of high power lasers
An in-line laser beam waist analyzer system includes an optical prism that picks off a portion of a second surface reflection from either a laser processing focus lens or a protective debris shield for the processing lens and directs that focused light to a pixelated detector. This provides real time monitoring of the focused laser beam while it is processing material by welding, cutting, drilling, scribing or marking, without disrupting the process..
08/21/14
20140233021
Apparatus for focus beam analysis of high power lasers
An in-line laser beam waist analyzer system includes an optical prism that picks off a portion of a second surface reflection from either a laser processing focus lens or a protective debris shield for the processing lens and directs that focused light to a pixelated detector. This provides real time monitoring of the focused laser beam while it is processing material by welding, cutting, drilling, scribing or marking, without disrupting the process..
08/21/14
20140231647
Compact fiber-based scanning laser detection and ranging system
A system for short-range laser detection and ranging of targets can provides rapid three-dimensional, e.g., angle, angle, range, scans over a wide field-of-view. Except for the final transmit/receive lens, the disclosed ladar system can be implemented in an all-fiber configuration.
08/21/14
20140231634
Apparatus for focus beam analysis of high power lasers
An in-line laser beam waist analyzer system includes an optical prism that picks off a portion of a second surface reflection from either a laser processing focus lens or a protective debris shield for the processing lens and directs that focused light to a pixelated detector. This provides real time monitoring of the focused laser beam while it is processing material by welding, cutting, drilling, scribing or marking, without disrupting the process..
08/21/14
20140231524
Barcode scanner having laser alignment indication
A barcode scanner having a laser alignment indication mainly has an alignment light source module and a reading light source module. After the alignment light source module is aligned with a barcode, the reading light source module is started to read barcode information.
08/14/14
20140227559
Method for machining a metallic frictional surface using lasers; and a corresponding sheet-metal part
A method for machining a metallic frictional surface for wet-running applications is provided in which the metallic frictional surface is machined using a laser.. .
08/14/14
20140226692
Organic semiconductor lasers by triplet managers
A first device is provided. The device includes an organic semiconductor laser.
08/14/14
20140226691
Iii-v photonic crystal microlaser bonded on silicon-on-insulator
Novel methods and systems for miniaturized lasers are described. A photonic crystal is bonded to a silicon-on-insulator wafer.
08/14/14
20140224778
Marking apparatus with a plurality of gas lasers with resonator tubes and individually adjustable deflection means
The invention relates to a marking apparatus (100) for marking an object with laser light, comprising a plurality of gas lasers (10) and a control unit for individually activating each of the gas lasers (10) to emit a laser beam according to a sign to be marked. The gas lasers (10) are stacked such that the laser beams emitted by the gas lasers (10) form an array of laser beams, in particular a linear array with parallel laser beams, each gas laser (10a-i) comprises laser tubes (12) that at least partially surround an inner area (5).
08/14/14
20140224777
Marking apparatus with a plurality of lasers, deflection means, and telescopic means for each laser beam
The invention relates to a marking apparatus for marking an object with laser light, comprising a plurality of lasers and a control unit for individually activating each of the lasers to emit a laser beam (90a-i) acording to a sign to be marked. A set of deflection means (30) for directing the laser beams (90a-i) toward the object to be marked is provided, a set of telescopic means (40) comprising at least one telescopic means (40a-i) per laser beam (90a-i) is provided, and each telescopic means (40a-i) is adjustable for individually setting a focal length of the respective laser beam (90a-i)..
08/07/14
20140221718
Excess air control for cracker furnace burners
A method for control of the air/fuel ratio of the burner(s) (excess air) of a thermal cracker includes three steps. The thermal cracker has three consecutive zones or portions through which combustion gases pass, a firebox portion, a bridge wall portion and a convection portion the first step is to direct a wavelength modulated beam of near infrared light from two different tunable diode lasers located in the bridge wall portion through combustion gas from the burner to a pair of near infrared light detectors, each positioned to receive the wavelength modulated beam of near infrared light from a different one of the two tunable diode lasers to generate a detector signal.
08/07/14
20140219604
Flexible 3-d photonic device
Three-dimensional flexible photonic integrated circuits on silicon are fabricated in semiconductor wafer form and then transferred to silicon-on-polymer (sop) substrates. Sop provides flexibility for conformal mounting with devices capable of maintaining performance when dynamically deformed to allow routing of light in x, y and z directions.
08/07/14
20140219306
Multicolor photonic crystal laser array
A multicolor photonic crystal laser array comprises pixels of monolithically grown gain sections each with a different emission centre wavelength. As an example, two-dimensional surface-emitting photonic crystal lasers comprising broad gain-bandwidth iii-nitride multiple quantum well axial heterostructures were fabricated using a novel top-down nanowire fabrication method.
08/07/14
20140219305
Semiconductor lasers and etched-facet integrated devices having h-shaped windows
An edge-emitting optical semiconductor structure has a substrate, an active multiple quantum well (mqw) region formed on the substrate, and a ridge waveguide extending between first and second etched end facets. The first etched end facet is disposed in a first window, while the second etched end facet is disposed in a second window.
08/07/14
20140219301
Reflectivity-modulated grating mirror
The invention relates to vertical cavity lasers (vcl) incorporating a reflectivity-modulated grating mirror (1) for modulating the laser output. A cavity is formed by a bottom mirror (4), an active region (3), and an outcoupling top grating mirror (1) formed by a periodic refractive index grating region in a layer structure comprising a p- and a n-doped semiconductor layer with an electrooptic material layer (12) arranged there between.
08/07/14
20140219297
Anisotropic beam pumping of a kerr lens modelocked laser
Apparatus and methods for anisotropic pumping of a kerr lens modelocked laser. Direct diode laser pumping of an ultrafast kerr lens modelocked laser oscillator is accomplished.
08/07/14
20140219296
Compact coherent high brightness light source for the mid-ir and far ir
Compact laser systems are disclosed which include ultrafast laser sources in combination with nonlinear crystals or waveguides. In some implementations fiber based mid-ir sources producing very short pulses and/or mid-ir sources based on a mode locked fiber lasers are utilized.
08/07/14
20140218928
Laser lighting device
The present invention discloses a laser lighting device, includes a laser device, used to emit lasers; a power supply, connecting to the laser device; a battery of lenses, locates at the same optical axis with the laser device; a regulating device, used to regulate exit angles of the lasers passing through the battery of lenses; a controlling device, connecting to the power supply and the laser device separately, used to receive and based on the users' control instructions to control the laser device emitting lasers at corresponding exit angles, and/or control the power supply outputting corresponding powers. The laser lighting device can regulate the laser exit angles through the regulating device, and receive and based on users' control instructions to control both laser brightnesses and laser exit angles.
08/07/14
20140218750
Wavelength scanning interferometer and method for aspheric surface measurement
The present invention discloses a wavelength scanning interferometer and a method for an aspheric surface measurement. The wavelength scanning interferometer comprises a set of tunable lasers (7) used as a light source, a twyman-green interferometer used for generating interference fringes, a translation platform (1) used for scanning an optical path difference along an optical axis, an image card (11) used for converting interference data to a digital signal and transmitting the digital signal to a computer (12), and a data card (13) used for synchronizing the actions of a ccd camera (9) and the translation platform (1).
08/07/14
20140217073
Marking apparatus with a plurality of lasers and individually adjustable sets of deflection means
The invention relates to a marking apparatus for marking an object with laser light, comprising a plurality of lasers and a control unit for individually activating each of the lasers to emit a laser beam (90) according to a sign to be marked. A set of deflection means (30) for rearranging the laser beams (90) into a desired array of laser beams (90) is provided, the set of deflection means (30) comprises at least two deflection means (33a-i, 34a-i) per laser beam (90), in particular at least two mapping mirrors (33a-i, 34a-i) or at least one optical waveguide and one lens per laser beam (90a-i), and each deflection means (33a-i, 34a-i) is individually adjustable in its deflection direction and/or individually shiftable..
08/07/14
20140217072
Marking apparatus with a plurality of lasers and a combining deflection device
The invention relates to a marking apparatus (100) for marking an object with laser light, comprising a plurality of lasers (10), in particular gas lasers (10), and a control unit for individually activating each of the lasers (10) to emit a laser beam according to a sign to be marked. A deflection device (30) is provided by which at least two laser beams are combined on a common spot..
07/31/14
20140212331
Near infrared microbial elimination laser systems (nimels)
Methods, systems, and apparatus for near infrared microbial elimination laser systems (nimels) including use with medical devices are disclosed. The medical devices can be situated in vivo.
07/31/14
20140211822
Vertical-cavity surface-emitting lasers
Vertical-cavity surface-emitting lasers (“vcsels”) and vcsel arrays are disclosed. In one aspect, a surface-emitting laser includes a grating layer having a sub-wavelength grating to form a resonant cavity with a reflective layer for a wavelength of light to be emitted from a light-emitting layer and an aperture layer disposed within the resonant cavity.
07/31/14
20140211466
Étendue shaping using faceted arrays
An apparatus for directing laser light has an illumination source having one or more lasers that are each energizable to emit laser light. A first faceted array in the path of the emitted laser light from the illumination source has at least a first light-redirecting facet and an adjacent second light-redirecting facet.
07/31/14
20140211461
Light source module using lasers as light source
A light source module includes a first triangular prism, a second triangular prism, a second laser source, and a third laser source. A first laser beam emitted from the first laser source and a second laser beam emitted from the second laser source are mixed to a first mixed laser beam by the first triangular prism.
07/31/14
20140211192
Driver circuit for leds for time-of-flight calculation
An electronic driver circuit for leds and lasers is provided for use in time-of-flight applications featuring a high efficiency of energy-conversion and a high precision of distance-measurements based on a dual conversion circuit. A voltage to voltage dc-dc conversion is hereby merged with a dc-voltage to pulsed-current booster, this booster operating at a time-of-flight modulation frequency.
07/31/14
20140209583
Managing thermal budget in annealing of substrates
A method and apparatus are provided for treating a substrate. The substrate is positioned on a support in a thermal treatment chamber.
07/24/14
20140206178
Method of laser separation of the epitaxial film or of the epitaxial film layer from the growth substrate of the epitaxial semiconductor structure (variations)
The present invention proposes variations of the laser separation method allowing separating homoepitaxial films from the substrates made from the same crystalline material as the epitaxial film this new method of laser separation is based on using the selective doping of the substrate and epitaxial film with fine donor and acceptor impurities. In selective doping, concentration of free carries in the epitaxial film and substrate may essentially differ and this can lead to strong difference between the light absorption factors in the infrared region near the residual beams region where free carriers and phonon-plasmon interaction of the optical phonons with free carriers make an essential contribution to infrared absorption of the optical phonons.
07/24/14
20140204573
Light source module using lasers as light source
A light source module includes a double refraction prism, an optical plate, a first laser source, a second laser source, and a third laser source. A first laser beam emitted from the first laser source and a second laser beam emitted from the second laser source are mixed by the double refraction prism and these are mixed together with a third laser beam emitted from the third laser source by the optical plate..
07/24/14
20140202994
Compact, coherent, high brightness light sources for the mid and far ir
Compact high brightness light sources for the mid and far ir spectral region, and exemplary applications are disclosed based on passively mode locked tm fiber comb lasers. In at least one embodiment the coherence of the comb sources is increased in a system utilizing an amplified single-frequency laser to pump the tm fiber comb laser.
07/17/14
20140200689
Quantum computer and quantum computing using ising model
For each pair of a plurality of slave lasers b for which injection synchronization is performed by a master laser m, by controlling the intensity of light exchanged between two slave lasers b and an optical path length between the two slave lasers b using a slave-to-laser intensity control unit ia and an inter-slave laser optical path length control unit ip, the magnitude and the sign of pseudo ising interaction jij between the two slave lasers b are implemented. After the plurality of slave lasers b arrive at a steady state, by measuring relative values of the oscillation phases of the plurality of slave lasers b with respect to the oscillation phase of the master laser m by using an oscillation phase measuring unit pm, pseudo ising spins σi of the plurality of slave lasers b are measured..


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Lasers topics: Semiconductor, Photosensitive Drum, Device Control, Incident Light, Lens Array, Electrical Signal, Laser Array, Raman Amplifier, Amplification, Internal Combustion Engine, Enhancement, Processing Device, Processing Devices, Fiber Optic Cable, Fiber Optic

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This listing is a sample listing of patent applications related to Lasers for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Lasers with additional patents listed. Browse our RSS directory or Search for other possible listings.
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