Popular terms

[SEARCH]

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

Follow us on Twitter
twitter icon@FreshPatents

Web & Computing
Cloud Computing
Ecommerce
Search patents
Smartphone patents
Social Media patents
Video patents
Website patents
Web Server
Android patents
Copyright patents
Database patents
Programming patents
Wearable Computing
Webcam patents

Web Companies
Apple patents
Google patents
Adobe patents
Ebay patents
Oracle patents
Yahoo patents

[SEARCH]

Lasers patents



      
           
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


Method and apparatus to reduce noise caused by mode hopping in external cavity lasers

Agilent Technologies

Method and apparatus to reduce noise caused by mode hopping in external cavity lasers

Methods for determining optical power, for power normalizing laser measurements, and for stabilizing power of lasers via…

Battelle Memorial Institute

Methods for determining optical power, for power normalizing laser measurements, and for stabilizing power of lasers via…

Methods for determining optical power, for power normalizing laser measurements, and for stabilizing power of lasers via…

Board Of Regents University Of Oklahoma

Tunable semiconductor lasers


Date/App# patent app List of recent Lasers-related patents
08/27/15
20150244331 
 Microwave power amplification apparatus and method thereof patent thumbnailMicrowave power amplification apparatus and method thereof
Period-one nonlinear dynamics of semiconductor lasers are utilized to provide an apparatus for photonic microwave power amplification in radio-over-fiber links through optical modulation depth improvement. The microwave power amplification apparatus includes a microwave-modulated optical signal generation module and a microwave power amplification module.
National Cheng Kung University


08/27/15
20150244150 
 Method and apparatus to reduce noise caused by mode hopping in external cavity lasers patent thumbnailMethod and apparatus to reduce noise caused by mode hopping in external cavity lasers
An external cavity laser and method for operating same are disclosed. The external cavity laser includes a gain chip, a grating, an actuator and actuator driver.
Agilent Technologies, Inc.


08/27/15
20150244145 
 Methods for determining optical power, for power normalizing laser measurements, and for stabilizing power of lasers via compliance voltage sensing patent thumbnailMethods for determining optical power, for power normalizing laser measurements, and for stabilizing power of lasers via compliance voltage sensing
A method is disclosed for power normalization of spectroscopic signatures obtained from laser based chemical sensors that employs the compliance voltage across a quantum cascade laser device within an external cavity laser. The method obviates the need for a dedicated optical detector used specifically for power normalization purposes.
Battelle Memorial Institute


08/27/15
20150244144 
 Tunable semiconductor lasers patent thumbnailTunable semiconductor lasers
A tunable semiconductor laser having, in one embodiment, a higher bias voltage end, a lower bias voltage end, and an optically active gain region comprising a band-gap configured to emit light at an emission wavelength that is tunable when an electric field is generated across the optically active gain region by applying a bias voltage thereto, an electron quantum well (qw) layer positioned closer to the higher bias voltage end than the lower voltage bias end, and a hole qw layer positioned closer to the lower bias voltage end than the higher bias voltage end and comprising a type-ii band alignment with the electron qw layer such that the band-gap is determined by an energy difference between a ground electron state in the electron qw layer and a ground hole state in the hole qw layer, wherein the emission wavelength is redshifted upon an increase in a bias voltage applied to the optically active gain region.. .
Board Of Regents University Of Oklahoma


08/27/15
20150244140 
 Air-cooled gas lasers with heat transfer resonator optics and associated systems and methods patent thumbnailAir-cooled gas lasers with heat transfer resonator optics and associated systems and methods
Embodiments of an air-cooled gas laser with heat transfer resonator optics are disclosed herein. A laser configured in accordance with one embodiment includes resonator optics having an optical element, a first heat sink element in surface-to-surface contact with a first side surface of the optical element, a second heat sink element in surface-to-surface contact with a second side surface of the optical element, and a carrier member carrying the optical element and the first heat sink element, and including a forward facing surface in surface-to-surface contact with the backside surface of the optical element.
Universal Laser Systems, Inc.


08/27/15
20150244139 
 Air-cooled gas lasers and associated systems and methods patent thumbnailAir-cooled gas lasers and associated systems and methods
Embodiments of an air-cooled gas laser are disclosed herein. A laser configured in accordance with one embodiment includes a laser superstructure, an optical assembly, and an elongated thermal decoupler member having a first end portion fixedly coupled to the optical assembly and a second end portion fixedly coupled to the laser superstructure.
Universal Laser Systems, Inc.


08/27/15
20150244137 
 Air-cooled gas lasers with heat transfer assembly and associated systems and methods patent thumbnailAir-cooled gas lasers with heat transfer assembly and associated systems and methods
Embodiments of an air-cooled gas laser with a heat transfer assembly are disclosed herein. A laser configured in accordance with one embodiment includes a laser superstructure and a laser superstructure having an opening and a cavity accessible through the opening, and an electrode assembly.
Universal Laser Systems, Inc.


08/27/15
20150240564 
 Drill with remotely controlled operating modes and  providing the same patent thumbnailDrill with remotely controlled operating modes and providing the same
The present invention relates to a drilling system with a multi-function drill head used in, among other applications, oil and gas drilling. The system is used to enhance the effective permeability of an oil and/or gas reservoir by drilling or cutting new structures into the reservoir.
Ramax, Llc


08/20/15
20150235848 
 Ultra long lifetime gallium arsenide patent thumbnailUltra long lifetime gallium arsenide
A novel bulk gaas with an increased carrier lifetime of at least 10 microseconds has been produced. This novel gaas has many uses to improve optical and electrical devices.
Bae Systems Information And Electronic Systems Integration Inc.


08/20/15
20150234295 
 Dynamic patterning method that removes phase conflicts and improves pattern fidelity and cdu on a two phase-pixelated digital scanner patent thumbnailDynamic patterning method that removes phase conflicts and improves pattern fidelity and cdu on a two phase-pixelated digital scanner
Phase conflicts in pattern transfer with phase masks can be resolve by exposing pattern features with a first pattern and a second pattern, wherein the second pattern is selected based on the phase conflicts. In scanned exposures using pulsed lasers, a number of exposures of the second pattern can be less than 20% of a total number of exposures..
Nikon Corporation


08/20/15
20150234188 

Control of adaptive optics


A portable display system operative to present images to a user wearing the display and to correct vision using adaptive optics may include a lens system with a variable index of refraction and an image projector and image capture device. The image projector may project a pattern onto a retina of the user's eye(s) and the image capture device may capture a retinal reflection image of the pattern.
Aliphcom


08/20/15
20150234187 

Adaptive optics


A portable display system operative to present images to a user wearing the display and to correct vision using adaptive optics may include a lens system with a variable index of refraction and an image projector and image capture device. The image projector may project a pattern onto a retina of the user's eye(s) and the image capture device may capture a retinal reflection image of the pattern.
Aliphcom


08/13/15
20150229407 

Optical semiconductor device


An optical semiconductor device includes: semiconductor lasers; a wave coupling section multiplexing light output by the semiconductor lasers; an optical amplifying section amplifying output light of the wave coupling section; first optical waveguides respectively optically connecting respective semiconductor lasers to the wave coupling section; a light intensity lowering section located in each of the first optical waveguides and lower light intensity of reflected light that is reflected at a reflecting point located in the optical semiconductor device and that returns to the respective semiconductor lasers; to decrease line width of the light output by the semiconductor lasers.. .
Mitsubishi Electric Corporation


08/13/15
20150226921 

Wavelength division multiplexing with multi-core fiber


Optical systems for wavelength division multiplexing and wavelength division demultiplexing with a multi-core fiber, and methods of their fabrication, are disclosed. The systems include a coupling mirror with a plurality of angled surfaces that are configured to direct light to or from different cores of a multi-core fiber.
International Business Machines Corporation


08/13/15
20150226708 

Laser projected acoustic sensor apparatus and method


A plurality of lasers produces a lattice of projected points. A sensor system detects movement in the projected points in response to an incoming wave..
Lockheed Martin Corporation


08/13/15
20150226607 

Acquiring a raman spectrum with multiple lasers


A spectrometer is provided for acquiring a raman spectrum from a sample. The spectrometer includes a first laser, a second laser, a detector and a processing device.
Bruker Optics, Inc.


08/06/15
20150222092 

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.
California Institute Of Technology


08/06/15
20150222088 

Light emitting device with extended mode-hop-free spectral tuning ranges and manufacture


Laser with extended mode-hop free spectral tuning ranges and methods of manufacture such lasers are disclosed. In one embodiment an electrical device includes a carrier and a light emitting device including an active region and a first passive region disposed on a first side of the active region, wherein the active region of the light emitting device is disposed on the carrier while the first passive region is thermally floating..
Photodigm Inc.


08/06/15
20150222084 

Method for achieving high-power solid-state lasers by multiple beams combination using cascaded compound laser resonators


A method for achieving high-power solid-state lasers by multiple beams combination using cascaded compound laser oscillators, comprising the following steps: 1) designing a compound resonator to achieve an output beam perpendicular to the axis of oscillation in which a compensating lens is used; 2) designing beam combination of two independent solid-state lasers in cascaded compound cavities and using 4f optical system to compensate the beam waist separation between two lasers; 3) based on the first two steps, multiple beams combination of n independent solid-state lasers can be achieved. In the present invention, n output beams emitted from n independent solid-state lasers are completely combined, and the combined beams hold the same waist position, size and divergence along down the same optical axis.
Jiangsu Zhongkesixiang Laser Technology Co. Ltd


08/06/15
20150222073 

Methods of modulating microlasers at ultralow power levels, and systems thereof


A microlaser system includes an optical source, a microlaser, an actuator switch, and a photovoltaic power source. The microlaser, which includes a control element, is optically pumped by at least a portion of light emitted by the optical source.
California Institute Of Technology


08/06/15
20150219905 

Single-emitter line beam system


A line beam system includes a single-emitter light engine including a plurality of separately spaced single-emitter diode lasers, each emitter configured to emit a diode laser beam. Beam spacing optics are optically coupled to the single-emitter light engine and situated to provide propagation axes of the diode laser beams in a close-packed parallel configuration.
Nlight Photonics Corporation


08/06/15
20150219764 

Low cost small size lidar for automotive


A lidar sensor having particular application for use on a vehicle. The lidar sensor includes a plurality of spaced apart vcsel arrays each including a single lens, where the lens for each vcsel array directs the beam of the particular laser in the array that is illuminated in a desired direction so that turning on and off of the lasers in each array creates a scanning effect.
Gm Global Technology Operations Llc


07/30/15
20150215043 

Lasers based on optical ring-resonators


An apparatus includes a laser that includes an optical gain medium and first and second optical ring-resonators. The optical gain medium and the optical ring-resonators are serially optically connected together to form one or more segments of an optical cavity of the laser.
Alcatel-lucent Usa Inc.


07/30/15
20150212188 

Closed loop tracking system using signal beam


The invention is a system and method for heliostat mirror control. Here, each heliostat mirror generates a low intensity “signal beam”, directed at an angle off from the heliostat mirror's high intensity and sensor blinding “main beam” of reflected solar energy.
Idealab


07/23/15
20150205062 

Optical interposer


An optical interposer comprising an array of first order diffraction grating couplers arranged to couple light emitted by an array of single mode vertical-cavity surface-emitting lasers (vcsels) into optical waveguides, the light being emitted in a direction substantially perpendicular to the optical waveguides; a device for refracting the light over at least 4 degrees; an array of output ports arranged to optically couple light from the optical waveguides into an array of optical fibers or other optical elements; and the optical waveguides connecting the array of first order diffraction grating couplers and the array of output ports to route the light from the diffraction gratings into the output ports.. .
Huawei Technologies Co., Ltd.


07/23/15
20150204666 

Adjustable laser leveling device and method


A device and method for determining level planes using one or more lasers. The device may include a single base or a plurality of bases that allow lasers to be attached to project laser lines across a work surface.

07/23/15
20150202119 

Non-invasive methods for prevention, detection, treatment, and healing of neoplastic processes in dogs and cats


The invention is a method consisting of stimulation of specific new acupuncture points to prevent, treat and heal specific types of neoplastic process in dogs and cats. The specific acupuncture points used in the method of the invention have not been previously disclosed for the treatment of neoplastic processes.
Good-ip Limited


07/23/15
20150202118 

Non-invasive methods for prevention, detection, treatment, and healing of neoplastic processes in humans


The invention is a method consisting of stimulation of specific new acupuncture points to prevent, detect, treat and heal specific types of neoplastic process in humans. The specific acupuncture points used in the method of the invention have not been previously disclosed for the treatment of neoplastic processes.
Good-ip Limited


07/16/15
20150198295 

Scalable laser with selectable divergence


A laser illuminator/pointer can have an array of diode lasers for providing laser beams. A beam shaping optic can shape each of the laser beams.
Flir Systems, Inc.


07/09/15
20150194972 

Optical lattice clock, clock device and laser light source


Various embodiments improve accuracy by increasing the number of atoms engaged in a clock transitions in an optical lattice clock. An exemplary optical lattice clock an embodiment comprises an optical waveguide, an optical path, a laser light source, and a laser cooler.
Riken


07/09/15
20150190275 

Ophthalmologic device for breaking down eye tissue


An ophthalmological apparatus includes a base station having a light source generating light pulses, and an application head mountable on an eye having a light projector for focussed projection of the light pulses for punctiform breakdown of eye tissue. The application head has movement drivers moving the light projector in a feed direction and a first scanning direction.

07/02/15
20150188291 

High density laser optics


Apparatuses and methods for high density laser optics are provided. An example, of a laser optics apparatus includes a plurality of vertical cavity surface emitting lasers (vcsels) in a monolithically integrated array, a high contrast grating (hcg) integrated with an aperture of a vertical cavity of each of the plurality of the vcsels to enable emission of a single lasing wavelength of a plurality of lasing wavelengths, and a plurality of single mode waveguides, each integrated with a grating coupler, that are connected to each of the plurality of the integrated vcsels and the hcgs, where each of the grating couplers is aligned to an integrated vcsel and hcg..
Hewlett-packard Development Company, L.p.


07/02/15
20150188290 

Interband cascade lasers with engineered carrier densities


Methods for improving the performance of type-ii and type-i icls, particularly in the mid-ir wavelength range, are provided. The electron injector of a type-ii or a type-i icl can be heavily n-doped to increase the ratio of electrons to holes in the active quantum wells, thereby increasing the probability of radiative recombination in the active quantum wells and reducing the threshold current density jth needed to achieve lasing.
The Government Of The United States Of America, As Represented By The Secretary Of The Navy


07/02/15
20150188283 

High-power fiber laser employing nonlinear wave mixing with higher-order modes


A high-power fiber laser exploits efficiency and wavelength-conversion of nonlinear wave mixing in a higher-order mode (hom) fiber providing large effective area and higher-power operation than single-order mode (smf) fiber. In a “monomode” approach, mixing waves (pump(s), signal, idler) propagate in the same higher-order mode, and in an “intermodal” approach different waves propagate in different modes.
Trustees Of Boston University


07/02/15
20150188282 

Impedance matching system for slab type lasers


A system transfers radio frequency energy from a radio frequency power amplifier (rfpa) to a slab laser. The system includes a connector, a printed circuit board, a conductive plate and a first inductor element.

07/02/15
20150188280 

Metal-insulator-metal waveguide for nano-lasers and optical amplifiers


A metal-insulator-metal (mim) waveguide structure for nano-lasers or optical amplifiers is described. The structure comprises a substrate on which are supported first and second metal layers which form electrical contacts for the waveguide.

07/02/15
20150187558 

Pulse-burst assisted electrospray ionization mass spectrometer


The present invention relates to a mass spectrometer system, which combines laser desorption with pulse bursts comprising a train of ultrashort pulses and electrospray ionization. The pulse separation between individual pulses within the pulse burst is selected such that transient phenomena on an irradiated sample do not fully relax between individual pulses.
Imra America, Inc.


07/02/15
20150185147 

Apparatus for determining gauge profile for flat rolled material with laser-based lap counter


A gauge profile apparatus (100) includes a gauge profile system (104) and a lap count system (106) for determining an average three-dimensional profile over the length of a sheet coil (10). The gauge profile system (104) includes a lap profile measuring device (112) which will make a distance determination between top and bottom surfaces for the sheet coil (10).

07/02/15
20150185141 

Methods for precision optical frequency synthesis and molecular detection


The present invention relates to precision linewidth control and frequency measurements of continuous wave lasers for the near to far ir spectral regions, precision frequency synthesizers and exemplary applications in molecular detection. Methods and systems are disclosed for simultaneous line narrowing of cw lasers, as well as referencing the desired emission wavelength to a frequency comb laser..
Imra America, Inc.


07/02/15
20150184994 

Oct swept laser with high coherence signal extraction


An optical coherence tomography system utilizes an optical swept laser that has improved coherence length in the swept optical signal. This is accomplished using an intra-cavity element that extracts the tunable optical signal at the optimal location within the laser's resonant cavity.
Axsun Technologies, Inc.


07/02/15
20150184835 

Adaptive multi-wavelength laser illuminator


A system includes one or more lasers, a collimator, and a controller. The one or more lasers are configured to generate laser illumination.
Raytheon Company


07/02/15
20150183055 

Laser conversion of high purity silicon powder to densified granular forms


The present invention relates to a direct method to convert fine and ultra fine silicon powder from polysilicon manufacturing sources such as fluid bed and free space reactors into densified granular forms. This conversion process is effected by the use of lasers of selective wavelengths from solid state diode or optically-pumped yag sources to locally heat, melt and densify a controlled quantity of silicon powder, and comprises the steps of distributing dry silicon powder on an inert substrate, subjecting the silicon charge to a focused laser beam to realize melted and densified granular forms, and discharging the product.

06/25/15
20150180605 

Method for the adaptive configuration of the transmission spectrum in wdm-pons


A method for adaptive configuration of a transmission signal in a coherent wavelength-division multiplexing-passive optical network (wdm-pon) having an optical line termination and a plurality of end nodes includes: (a) generating, by at least m lasers, the transmission signal; (b) monitoring the ka active end nodes; (c) if the number of active end nodes is reduced to ka≦(m−1)·p: reassigning active end nodes associated with a spectral range of a laser to be switched off to a respective free spectral range of another laser, announcing the new assignment of the spectral ranges by transmitting a message to one or more end nodes assigned to the laser to be switched off, and switching off the laser to be switched off; and (d) if the number of active end nodes increases to ka>(m−1)·p: switching on an additional laser.. .
Deutsche Telekom Ag


06/25/15
20150179449 

Laser spike annealing using fiber lasers


The disclosure is directed to laser spike annealing using fiber lasers. The method includes performing laser spike annealing of a surface of a wafer by: generating with a plurality of fiber laser systems respective cw output radiation beams that partially overlap at the wafer surface to form an elongate annealing image having a long axis and a length la along the long axis; heating at least a region of the wafer to a pre-anneal temperature tpa; and scanning the elongate annealing image over the wafer surface and within the pre-heat region so that the annealing image has a dwell time td in the range 30 ns≦td≦10 ms and raises the wafer surface temperature to an annealing temperature ta..
Ultratech, Inc.


06/18/15
20150172610 

Projector optics


Projector methods, devices, software are described for a high decrease of the black level without decrease or a limited decrease of the luminance of the bright pixels for use with high contrast and high dynamic range projectors, e.g. Based on rgb lasers or phosphor converted lasers.
Barco N.v.


06/18/15
20150171986 

Spectral alignment of a wdm device to a specified frequency grid


A wdm device having a controller that individually controls the operating parameters of tunable lasers and the temperatures of an optical multiplexer and etalon. The device employs a spectral analyzer to measure the spectral composition of the optical output signal produced by the device.
Alcatel-lucent Usa Inc.


06/18/15
20150168847 

Sub 200nm laser pumped homonuclear excimer lasers


Disclosed are methods and apparatus for generating a sub-200 nm continuous wave (cw) laser. A laser apparatus includes a chamber for receiving at least a rare gas or rare gas mixtures and a pump laser source for generating at least one cw pump laser focused in the chamber for generating at least one laser-sustained plasma in the chamber.
Kla-tencor Corporation


06/18/15
20150165556 

Diode laser fiber array for powder bed fabrication or repair


A method of forming a build in a powder bed includes emitting a plurality of laser beams from selected fibers of a diode laser fiber array onto the powder bed, the selected fibers of the array corresponding to a pattern of a layer of the build; and simultaneously melting powder in the powder bed corresponding to the pattern of the layer of the build. An apparatus for forming a build in a powder bed includes a diode laser fiber array including a plurality of diode lasers and a plurality of optical fibers corresponding to the plurality of diode lasers, each optical fiber configured to receive a laser beam from a respective diode laser and configured to emitting the laser beam; a support configured to support a powder bed or a component configured to support the powder bed at a distance from ends of the optical fibers; and a controller configured to control the diode laser fiber array to emit a plurality of laser beams from selected fibers of the diode laser fiber array onto the powder bed, the selected fibers of the array corresponding to a pattern of a layer of the build and simultaneously melt the powder in the powder bed corresponding to the pattern of the layer of the build..
General Electric Company


06/18/15
20150165550 

Analytical laser ablation of solid samples for icp, icp-ms, and fag-ms analysis


This invention is improved laser ablation of solid samples analyzed by inductively coupled plasma (icp), icp mass spectrometry, or flowing afterglow mass spectrometry. A mirror-with-hole eliminates chromatic aberration in sample viewing and allows rad-hardening for radiation hot cell analysis of nuclear waste.

06/18/15
20150165548 

Edge chamfering methods


Processes of chamfering and/or beveling an edge of a glass or other substrate of arbitrary shape using lasers are described herein. Three general methods to produce chamfers on glass substrates are disclosed.
Corning Incorporated


06/11/15
20150162724 

Substrate-emitting transverse magnetic polarized laser employing a metal/semiconductor distributed feedback grating for symmetric-mode operation


Semiconductor lasers comprise a substrate; an active layer configured to generate transverse magnetic (tm) polarized light under an electrical bias; an upper cladding layer; a lower cladding layer; and a distributed feedback (dfb) grating defined by the interface of a layer of metal and a layer of semiconductor under the layer of metal, the interface periodically corrugated in the longitudinal direction of the laser with a periodicity of Λdfb=mλ/(2neff), wherein m>1. The dfb grating is configured such that loss of one or more antisymmetric longitudinal modes of the laser structure via absorption to the dfb grating is sufficiently maximized so as to produce lasing of a symmetric longitudinal mode of the laser with laser emission characterized by a single-lobe beam along each direction defined by the grating diffraction orders corresponding to emission away from the plane of the grating..
Wisconsin Alumni Research Foundation


06/11/15
20150162720 

Bunch length compression free electron lasers to avoid parasitic compressions


A method of bunch length compression method for a free electron laser (fel) that avoids parasitic compressions by 1) applying acceleration on the falling portion of the rf waveform, 2) compressing using a positive momentum compaction (r56>0), and 3) compensating for aberration by using nonlinear magnets in the compressor beam line.. .
Jefferson Science Associates, Llc


06/11/15
20150160532 

Broadband generation of mid ir, coherent continua with optical fibers


Coherent and compact supercontinuum light sources for the mid ir spectral regime are disclosed and exemplary applications thereof. The supercontinuum generation is based on the use of highly nonlinear fibers or waveguides.
Imra America, Inc.


06/11/15
20150159994 

System and determining the position of objects in a radiation room for radiation therapy


A system and method for determining the position of objects in a radiation room for radiation therapy comprises several room lasers arranged in the radiation room, each of which is designed for patient positioning to project at least one laser line onto the surface of a patient located on a patient table in the radiation room. At least one camera detects at least one laser line projected onto the surface of the patient by at least one of the room lasers, and an evaluation and control apparatus determines the coordinate points along the laser line projected onto the surface of patient during a radiation procedure based on measurement values detected by the camera through a real-time triangulation process and compares them with target coordinate points.
Lap Gmbh Laser Applikationen


06/04/15
20150155686 

Operating vertical-cavity surface-emitting lasers


Methods, systems, and devices are provided for operating a vertical-cavity surface-emitting laser. Operating a vertical-cavity surface-emitting laser can include determining an output voltage of a vertical-cavity surface-emitting laser driver, determining a relationship between the output voltage and a reference voltage, and adjusting an output current of the vertical-cavity surface-emitting laser driver based, at least in part, on the determined relationship..

06/04/15
20150155685 

Laser module for homogeneous line-shaped intensity profiles


The present invention relates to a laser module comprising several sub-modules (1) arranged side by side along a first axis (10) on a common carrier. Each of said sub-modules (1) comprises a laser area (8) formed of one or several arrays of semiconductor lasers arranged on a surface of the sub-module (1).
Koninklijke Philips N.v.


05/21/15
20150140577 

Optical engine for flow cytometer, flow cytometer system and methods of use


An optical engine for use in a bench top flow cytometer, the optical engine comprising a set of lasers; a different set of beam shaping optics for each laser, wherein each set comprises two lenses to adjustably focus light horizontally along an x-axis to a same horizontal position and vertically along a y-axis to a different vertical position along a same plane; collection optics for collecting fluorescence from the flow cell; filtration optics that filter the collected fluorescence from the flow cell into different detection channels according to wavelength ranges; and a detector for each detection channel that converts the filtered fluorescence to electrical signals, wherein electrical signals are processed so that the fluorescence from each laser at the different vertical positions is distinguished at the same detector.. .
Acea Biosciences, Inc.


05/21/15
20150140504 

Soft-tissue laser surgery


In dentistry very often soft tissue has to be cut. It has become customary to cut soft tissue, in particular gum or gingiva, or to disinfect pockets in the gingiva that exist at the neck of teeth with the help of laser light.
Sirona Dental Systems Gmbh


05/21/15
20150139264 

Sagnac loop mirror based laser cavity on silicon photonics platform


We have demonstrated a novel sagnac loop and micro-ring based laser cavity which is simple and reliable, with accurately controlled reflectivity and negligible excess loss. The resonant wavelength of a 2 μm radius micro-ring is shown to be lithographically controlled to a standard deviation of 3.6 nm.
Coriant Advanced Technology, Llc


05/21/15
20150139255 

Reducing the spectral bandwidth of lasers


A laser system for semiconductor inspection includes a fiber-based fundamental light source for generating fundamental light that is then converted/mixed by a frequency conversion module to generate uv-duv laser light. The fundamental light source includes a nonlinear chirp element (e.g., a bragg grating or an electro-optic modulator) that adds a nonlinear chirp to the seed light laser system prior to amplification by the fiber amplifier(s) (e.g., doped fiber or raman amplifiers).
Kla-tencor Corporation


05/14/15
20150132585 

Phosphor ceramics and methods of making the same


Electric sintering of precursor materials to prepare phosphor ceramics is described herein. The phosphor ceramics prepared by electric sintering may be incorporated into devices such as light-emitting devices, lasers, or for other purposes..

05/14/15
20150131689 

Quantum cascade lasers with improved performance using interface roughness scattering


A quantum cascade laser and method of making are disclosed. The quantum cascade laser includes a plurality stages configured in a cascade structure, each stage having a quantum well emission layer and an injection layer, each stage having an upper laser level and a lower laser level.

05/14/15
20150131078 

Synthetic wave laser ranging sensors and methods


Systems and methods for measuring a distance to an object. An exemplary method includes directing light beams from three or more continuous-wave lasers onto a target to generate an interference beam, and also frequency shifting the light beams split off from the lasers to generate local oscillator beams.

05/14/15
20150130932 

Apparatus and profiling a depth of a surface of a target object


An apparatus (1) for profiling the depth of a surface of a target object (30), having a two-dimensional array of lasers (5), an optical device (15) for projecting a two-dimensional illumination pattern (31) onto an area of the surface of the target object, an image capture device (10) arranged to capture an image of the two-dimensional illumination pattern projected onto the area of the surface of the target object and a processor (25) configured to process the captured image in order to reconstruct a depth profile of the two-dimensional area of the surface of the target object from the image captured by the image capture device.. .

05/14/15
20150130456 

Optical magnetometers


An optical magnetometer is disclosed. The device includes a cell filled with a substance that has a magnetic moment, such as an alkali metal.

05/07/15
20150125828 

Disruptor device simulation system


A disruptor device simulation system is described. Embodiments of the of the simulation system include a disruptor device, one or more training cartridges, and a simulator system.
Ti Training Corp.


05/07/15
20150125162 

Efficient optical communication device


In one embodiment, an apparatus for optical communication is disclosed. An optical sub-assembly and optical platform may form the apparatus.
Cisco Technology, Inc.


05/07/15
20150124846 

Lasers with beam shape and beam direction modification


A reflective surface is disclosed in conjunction with a semiconductor laser to shape a laser beam and modify a direction of the laser beam. The reflective surface may be formed on a structure disposed adjacent to a laser structure to allow high coupling of laser light to, for example, a silicon photonics chip or an optical fiber..
Binoptics Corporation


05/07/15
20150124329 

Multiple beam combiner for laser processing apparatus


Apparatus and methods for combining beams of amplified radiation are disclosed. A beam combiner has a collimating optic positioned to receive a plurality of coherent radiation beams at a constant angle of incidence with respect to an optical axis of the collimating optic.
Applied Materials, Inc.


05/07/15
20150124319 

Dual resonance pumped two-photon absorption optical filter


An apparatus is disclosed for filtering of probe light. The apparatus includes an optical filter comprised of a medium circular birefringence between crossed polarizers.

05/07/15
20150123695 

Edge-emitting etched-facet lasers


A laser chip having a substrate, an epitaxial structure on the substrate, the epitaxial structure including an active region and the active region generating light, a waveguide formed in the epitaxial structure extending in a first direction, the waveguide having a front etched facet and a back etched facet that define an edge-emitting laser, and a first recessed region formed in the epitaxial structure, the first recessed region being arranged at a distance from the waveguide and having an opening adjacent to the back etched facet, the first recessed region facilitating testing of an adjacent laser chip prior to singulation of the laser chip.. .
Binoptics Corporation


05/07/15
20150121962 

Laser processing system using broad band pulsed lasers


A laser material processing system which includes a pulsed fiber laser source having a continuous wavelength bandwidth of larger than 100 nm and pulse width of from 100 femtosecond to 1 microsecond, a broad band laser emitted from one core of an optical fiber, where the broad band laser is applied to a subject material to produce removal of the subject material and/or color change of the subject material.. .

04/30/15
20150117480 

High power femtosecond laser with variable repetition rate


Designs and techniques for constructing and operating femtosecond pulse lasers are provided. One example of a laser engine includes an oscillator that generates and outputs a beam of femtosecond seed pulses, a stretcher-compressor that stretches a duration of the seed pulses, and an amplifier that receives the stretched seed pulses, amplifies an amplitude of selected stretched seed pulses to create amplified stretched pulses, and outputs a laser beam of amplified stretched pulses back to the stretcher-compressor that compresses their duration and outputs a laser beam of femtosecond pulses.
Alcon Lensx, Inc.


04/23/15
20150110142 

Operating vertical-cavity surface-emitting lasers


Methods, systems, and computer-readable mediah are provided for operating a vertical-cavity surface-emitting laser. Operating a vertical-cavity surface-emitting laser can include sending a signal to a driver to decrease an optical power of a vertical cavity surface emitting laser transmitter, and sending a signal to the driver associated with increasing the optical power by a particular amount in response to determining that the optical power is insufficient for reception by a receiver..

04/23/15
20150110137 

Single-mode quantum cascade lasers with enhanced tuning range


In one aspect, semiconductor lasers are provided. A semiconductor laser described herein comprises substrate and a cavity formed on the substrate, the cavity comprising an asymmetric mach-zehnder (amz) interferometer structure positioned between two straight waveguide segments, the straight waveguide segments and first and second arms of the amz interferometer structure comprising epitaxial semiconductor layers, wherein the second arm of the amz interferometer structure has a temperature control architecture independent of the first arm..
Princeton University


04/23/15
20150109537 

Video projector


The invention relates to the field of optoelectronics, and may be used in devices and of visualization, displaying, storage and processing of information, in particular in projection displays, etc. Video projector consists of a liquid crystal micro display based on structure flcos, and an optical unit of reading the information formed in the structure flcos, containing a light source and projection optics, optically coupled to the structure flcos, and a screen, onto which the information is projected.

04/16/15
20150105899 

Laser assisted machining system for ceramics and hard materials


An improved apparatus and method for laser assisted machining are provided, by utilizing a computer to develop interrelated heating and machining plans, from a variety of input data describing the material to be machined, the properties of lasers and pyrometers used for heating the material, and computer models of the machining arrangement, workpiece and final part to be produced. An iterative process continues until the machining and heating plans result in the cutting zone of the workpiece being maintained at a desired temperature with no obstruction in the line-of-sight of at least one laser and pyrometer throughout the machining process, while also maintaining the cutting tool at or below a desired maximum temperature..
Board Of Trustees Of Northern Illinois University


04/16/15
20150103857 

Tapered-waveguide high-power quantum cascade lasers


An improved quantum cascade laser, the improvement comprising a longitudinally non-uniform dielectric waveguide. The waveguide includes a longitudinally straight section and a longitudinally tapered section.
Pranalytica, Inc.


04/16/15
20150103852 

System and controlling collocated multiple wavelength tuned lasers


Systems and methods are disclosed herein for controlling laser beams for a plurality of collocated laser assemblies. The laser beams are optimized by controlling outputs of a primary power source (current for generating a laser beam) and a secondary power source (heating device) for each of the respective laser assemblies.
Automotive Coalition For Traffic Safety, Inc.


04/09/15
20150098125 

Dynamically-distributable multiple-output pump for fiber optic amplifier


A multiple-output laser component is described with a plurality of diode lasers in a common package, each of the diode lasers having distinct electrical control and optically coupled to a distinct output fiber, the component configured such that up to a maximum total output power can be selectively and dynamically partitioned among said diode lasers. The dynamic allocation can be based on demand for laser power in a fiber optic coupled to each diode laser.
Neophotonics Corporation


04/09/15
20150096722 

Systems and methods for cooling disk lasers


A cooling device for cooling heat-generating devices such as disk laser according to a desired thermal profile to generate desired edge effects and optical properties. An example cooling device includes a back plate for supporting the heat-generating device.
Logos Technologies, Llc


04/02/15
20150093108 

Upstream scheduling in a passive optical network


In general, the 1g-epon standard specifies its upstream waveband broadly to allow for low cost lasers to be used to transmit upstream. Often, however, the lasers actually used by many 1g-onus to transmit upstream only occupy a narrow waveband that does not overlap with the upstream waveband specified by the 10g-epon standard.
Broadcom Corporation


04/02/15
20150092802 

Optically pumped vertical external-cavity surface-emitting laser device


The present invention relates to an optically pumped vertical external-cavity surface-emitting laser device comprising at least one vecsel (200) and several pump laser diodes (300). The pump laser diodes (300) are arranged to optically pump the active region (108) of the vecsel (200) by reflection of pump radiation (310) at a mirror element (400).
Koninklijke Philips N.v.


04/02/15
20150090242 

Interactive play center


An entertainment venue, amusement attraction, or interactive play center configured to provide a variety of activities for users. The attraction may include blaster cannons, sorting stations, fountain components, registration stations, video monitors, targets, and other interactive elements.

03/26/15
20150088105 

Medical system for treating deep surface targets


Disclosed herein are medical systems involving the novel use of lasers in a way to transfer a desired amount of energy to deeper tissues, such as deep dermis, fat, deep vessels, fascia, tumors and others, without burning the skin, in particular the skin surface. A medical system (10) comprises a laser beam delivery system (21) producing a plurality of laser beams (1a-1d) for simultaneously or alternately irradiating the deep tissue target structure (5) from multiple directions via the skin surface (2), wherein the laser beams (1a-1d) individually are individually adjusted to have an energy level insufficient to ablate and/or burn the skin (2).

03/26/15
20150086677 

Method and laser marking objects


Embodiments of the present invention comprise an apparatus for laser marking individual objects with indicia at a marking station wherein a predetermined window exists during which each object can be marked as the objects are conveyed along at least one path at a predetermined speed, the apparatus comprising, at least first and second lasers positioned adjacent one or more paths configured to direct a laser beam onto the objects to mark the same with indicia as the objects pass through the marking station, with each of the first and second lasers marking alternate following objects as they pass through the marking station.. .
Ten Media, Llc




Popular terms: [SEARCH]

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

Follow us on Twitter
twitter icon@FreshPatents

###

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.


0.7523

4241

459674 - 0 - 101