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Lasers patents

      

This page is updated frequently with new Lasers-related patent applications.




 Lasersystem patent thumbnailLasersystem
There is provided a laser system that may include a raman cell, a pumping light generator, and a raman cell laser unit. The pumping light generator may include one or more optical parametric amplifiers (opas), and may be configured to output first raman-cell pumping light and second raman-cell pumping light to the raman cell.
Gigaphoton Inc.


 Multi-pump-pass fiber based lasers and amplifiers patent thumbnailMulti-pump-pass fiber based lasers and amplifiers
The invention is optical configurations for constructing laser oscillators or laser amplifiers that comprise an extremely short fiber (typically tens of cm long or below, e.g. 5 cm to 30 cm).
B.g. Negev Technologies And Applications Ltd., At Ben Gurion University


 Multispectral light source patent thumbnailMultispectral light source
Medical illumination systems and devices for illuminating a target surgical area with a pre-selected type of multispectral light to aid tissue differentiation as viewed by the human eye, especially in open-surgery settings, and methods for practicing the same. A light source may have multiple settings selectable to provide various types of multispectral light configured to reduce reflection from corresponding tissue types relative to full-spectrum light.
Invuity, Inc.


 Microelectromechanical system for tuning lasers patent thumbnailMicroelectromechanical system for tuning lasers
The deflectors being configured for rotational deflection of the plate and for translational deflection of the plate.. .

 Laser systems and optical devices for manipulating laser beams patent thumbnailLaser systems and optical devices for manipulating laser beams
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.
Cvi Laser, Llc


 Two-color signature simulation using mid-infrared test source semiconductor lasers patent thumbnailTwo-color signature simulation using mid-infrared test source semiconductor lasers
In some embodiments, the present invention provides an apparatus and process that includes control electronics that generate an electronic control signal; and a plurality of optically or electrically pumped semiconductor lasers, quantum-cascade lasers, optical parametric generators, or optical parametric oscillators, operatively coupled to the control electronics, that output an optical signal having a plurality of wavelengths, each wavelength having an output intensity that each of which is varied over time to simulate a combustion signature of a weapon. In some embodiments, the optical signal includes at least two different infrared wavelengths that are varied differently with time..
Lockheed Martin Corporation


 Laser induced breakdown spectroscopy (libs) apparatus with dual ccd spectrometer patent thumbnailLaser induced breakdown spectroscopy (libs) apparatus with dual ccd spectrometer
This invention discloses a compact laser induced breakdown spectroscopy (libs) apparatus suitable for field operations. The libs apparatus comprises a q-switched laser with laser pulse energy between several tens and several thousands of micro joules (μj), which is significantly lower than that of traditional libs lasers.
Bwt Property, Inc.


 Device for determining a concentration of a chemical substance patent thumbnailDevice for determining a concentration of a chemical substance
The invention relates to a device tier determining a concentration of a chemical substance dissolved in a liquid, which chemical substance absorbs light (10) of an absorption wavelength, wherein the device comprises: at least one flow-through chamber (2) having at least one inlet opening (4), at least one outlet opening (6), and at least one peripheral wall (24); at least one laser (8) for emitting light (10) of the absorption wavelength; and at least one detector (18) for detecting the emitted light (10); wherein the laser (8) and the detector (18) are arranged in such a way that the light (10) emitted by the laser (8) is conducted through the flow-through chamber (2) along at least two different paths before said light hits the detector (18), and wherein the device has two lasers (8) which emit light of different wavelengths. The invention further relates to a method for producing a flow-through chamber for such a device..
Gottfried Wilhelm Leibniz UniversitÄt Hannover


 X-ray laser microscopy system and method patent thumbnailX-ray laser microscopy system and method
Improved system and method of x-ray laser microscopy that combines information obtained from both x-ray diffraction and x-ray imaging methods. The sample is placed in an ultra-cold, ultra-low pressure vacuum chamber, and exposed to brief bursts of coherent x-ray illumination further concentrated using x-ray mirrors and pinhole collimation methods.
Rising Star Pathway, A California Corporation


 Machine to detect phonon gain to control desired reactions in an electrically driven hydrogen loaded material patent thumbnailMachine to detect phonon gain to control desired reactions in an electrically driven hydrogen loaded material
A machine to detect phonon gain to control desired reactions using a container with at least two optical ports, a power supply and wiring connections to enable driving a material sample to be examined, a power supply to drive at least two lasers, a controller to regulate the output of the lasers, a beam path to enable illumination of the sample, a controller to regulate the electric power delivered to the sample enabling driving in more than one state, a detector system to examine the backscatter radiation from the sample by frequency, a second beam path to enable the backscatter to reach the detector system, a computation system to separate and determine the ratios of the examined backscattered frequencies to determine the intensities and distribution, and a second computation system to compare the examined intensities and distribution and ratios to the desired intensities and distribution and ratios to determine what states were detected and to derive changes for the power supply driving the sample.. .

Moveably-coupled screen actuators

A speckle damping system for dampening speckle on a projection screen for a projection display system employing coherent or partially coherent light sources (e.g., lasers, leds) are disclosed. In one embodiment, a rotatably coupled system is disclosed, comprising: a set of actuators; a set of rotatably coupled mounts, each of said set of rotatably coupled mount capable of mounting at least one said actuator; and wherein said at least one actuator mounted on said rotatably coupled mount is in moveable mechanical communication with said projection screen.
Dolby Laboratories Licensing Corporation

Near-infrared lasers for non-invasive monitoring of glucose, ketones, hba1c, and other blood constituents

A wearable device for use with a smart phone or tablet includes a measurement device having a light source with a plurality of light emitting diodes (leds) for measuring physiological parameters and configured to generate an optical beam with wavelengths including a near-infrared wavelength between 700 and 2500 nanometers. The measurement device includes lenses configured to deliver the optical beam to a sample of skin or tissue, which reflects the optical beam to a receiver located a first distance from one of the leds and a different distance from another of the leds, and is also configured to generate an output signal representing a non-invasive measurement on blood contained within the sample.
Omni Medsci, Inc.

Method for forming heterogeneous single garnet based crystals for passive q-switched lasers and microlasers

Disclosed are heterogeneous crystals for use in a laser cavity and methods of forming the crystals. A crystal can be a monolithic crystal containing a garnet-based activator region and a garnet-based q-switch.
Clemson University

Test system having laser treatment function

Provided is an inspection system having a laser treatment function, including: a first oscillator configured to generate a laser for image acquisition; a second oscillator configured to generate a laser for treatment; an irradiation device configured to irradiate the lasers generated from the first oscillator and the second oscillator to an inspection target, collect lasers reflected from the inspection target, and adjust a direction of a laser to be irradiated to the inspection target; a photo-sensor configured to receive the collected lasers and output an electrical signal; and a controller configured to visualize the output of the photo-sensor on a visualization device and control the first oscillator, the second oscillator, and the irradiation device in response to an input signal.. .
Optimede Inc.

Long wavelength quantum cascade lasers based on high strain composition

An improved longwave infrared quantum cascade laser. The improvement includes a strained composition, with x and y each between 0.53 and 1, an active region emitting at a wavelength equal to or greater than 8 μm, an energy spacing e54 equal to or greater than 50 mev, an energy spacing ec4 equal to or greater than 250 mev, and an optical waveguide with a cladding layer on each side of the active region.
Pranalytica, Inc.

Inexpensive variable rep-rate source for high-energy, ultrafast lasers

System for converting relatively long pulses from rep-rate variable ultrafast optical sources to shorter, high-energy pulses suitable for sources in high-energy ultrafast lasers. Fibers with positive group velocity dispersion (gvd) and self phase modulation are advantageously employed with the optical sources.
Imra America, Inc.

Vehicle back-up assist system

A vehicle back-up assist system that can be set up by the vehicle driver or a spotter and provides a unique visual aid to assist with safely and efficient unloading, loading, or parking a vehicle without requiring assistance from another person. The back-up assist system includes a pair of differently colored portable markers.
Conesafe, Llc

System and multi-laser additive manufacturing

A system and method for additive manufacturing an object using multiple lasers is disclosed herein. The system includes a first laser generating a first focused laser beam having a first surface area where the first focused laser beam is directed onto a first quantity of a powder material on a substrate so as to fuse particles of the powder material in a first layer of the substrate.
General Electric Company

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.
Sie Ag Surgical Instrument Engineering

System and combined tissue imaging and image-guided laser therapy

A system and method for combined tissue imaging and image-guided laser therapy is provided. The apparatus has one or more imaging modalities and lasers that are controlled by a controller.
The Regents Of The University Of California

Optical resonator

The present invention provides an optical resonator that is capable of preparing polarization laser, polarization x-ray and coherent x-ray. The optical resonator is characterized by comprising an optical resonator that is capable of circulating two or more polarization lasers and irradiation of the polarization lasers with electron beam introduced by an electron beam feed port which is inserted in the intersection of laser paths inside the optical resonator..

Optical transmitter and transmission method, and optical receiver and receiption method

The present invention discloses: when a first laser in n lasers is switched to a second idle laser in m lasers, a wavelength of a wavelength-selective optical element to which the first laser is coupled is adjusted from a first wavelength to a second wavelength, and the second wavelength is different from the n wavelengths. Similarly, when a first optical receiver in n optical receivers is switched to a second idle optical receiver in m optical receivers, a wavelength of a wavelength-selective optical element to which the first optical receiver is coupled is adjusted from a first wavelength to a second wavelength, and the second wavelength is different from the n wavelengths..
Huawei Technologies Co., Ltd.

Generation of vuv, euv, and x-ray light using vuv-uv-vis lasers

A method for extending and enhancing bright coherent high-order harmonic generation into the vuv-euv-x-ray regions of the spectrum involves a way of accomplishing phase matching or effective phase matching of extreme upconversion of laser light at high conversion efficiency, approaching 10−3 in some spectral regions, and at significantly higher photon energies in a waveguide geometry, in a self-guiding geometry, a gas cell, or a loosely focusing geometry, containing nonlinear medium. The extension and enhancement of the coherent vuv, euv, x-ray emission to high photon energies relies on using vuv-uv-vis lasers of shorter wavelength.
The Regents Of The University Of Colorado, A Body Corporate

Apparatus for combining outputs of fiber-lasers

Diverging beams from three fiber-lasers are collimated by a three-segment composite lens. The collimated beams propagate parallel to each other to a single focusing lens that focuses the collimated beams into a transport fiber..
Coherent, Inc.

Adjustable laser leveling device with distance measuring lasers and self-leveling lasers and related method

A device and method for projecting visible level laser lines onto a work surface and measuring distances along the level laser lines. The device includes a self-leveling laser housing that allows the lasers to level when activated.

Laser printing system

The invention describes a laser printing system (100) for illuminating an object moving relative to a laser module of the laser printing system (100) in a working plane (180) and a corresponding method of laser printing. The laser module comprises at least two laser arrays (110) of semiconductor lasers (115) and at least one optical element (170).
Koninklijke Philips N.v.

Brittle object cutting apparatus and cutting method thereof

A brittle object cutting apparatus and the method thereof are disclosed. Wherein, the brittle object cutting apparatus comprises a first heating laser unit, a second heating laser unit, a scribing laser unit, two cooling units and a processing module.
Nanoplus Ltd.

High-power, phased-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.
Pd-ld, Inc.

A process for making nuclear fusion energy

A process for making nuclear fusion occur by compressing a prescribed fusion-fuel using lasers (22) or other means. The fusion fuel comprises a catalytic material mixed with a deuteride of an alkaline earth metal or alkali metal.

Semiconductor laser array, semiconductor laser element, semiconductor laser module, and wavelength-variable laser assembly

A semiconductor laser array includes: a plurality of semiconductor lasers configured to oscillate in a single mode at oscillation wavelengths different from one another, each semiconductor laser including an active layer including a multi-quatum well structure including a pluraltiy of will layers and a plurality of barrier layers laminated alternately, and an n-side separate confinement heterostructure layer and p-side separate confinement heterostructure layer configured to sandwich the active layer therebetween in a thickness direction, band gap energies of the n-side separate confinement heterostructure layer and the p-side separate confinement heterostructure layer being greater than band gap energies of the barrier layers of the active layer. The active layer is doped with an n-type impurity..
Furukawa Electric Co., Ltd.

Iii-v lasers with integrated silicon photonic circuits

Iii-v lasers integrated with silicon photonic circuits and methods for making the same include a three-layer semiconductor stack formed from iii-v semiconductors on a substrate, where a middle layer has a lower bandgap than a top layer and a bottom layer; a mirror region monolithically formed at a first end of the stack, configured to reflect emitted light in the direction of the stack; and a waveguide region monolithically formed at a second end of the stack, configured to transmit emitted light.. .
Globalfoundries Inc.

Temperature insensitive external cavity lasers on silicon

A technique related to a semiconductor chip is provided. An optical gain chip is attached to a semiconductor substrate.
International Business Machines Corporation

Compact laser source

Embodiments of the present invention are directed toward a low-power, high quality compact laser source. Embodiments include an optical combiner combining the outputs of a pump laser and a fabry-perot seed laser into a fiber amplifier.
Cubic Corporation

Optically pumped microplasma lasers

A laser and methods for providing a continuous wave output beam. The laser and method includes positioning a micro-plasma chip capable of creating micro-plasmas within a resonant cavity.
Physical Sciences, Inc.

Noise reduction for pulsed lasers using clustering

An optical measurement method in which a series of light pulses are generated using a pulsed laser having a set of different mode hop sequences (e.g., an external-cavity quantum cascade laser (ec-qcl)), the light pulses are detected with the detector to generate a respective pulse data set for each of the light pulses, and the pulse data sets are sorted into classes based on correlation coefficients. Sorting the pulse data sets into classes allows the pulse data sets originating from each of the mode hop sequences of the pulsed laser to be treated independently of the pulse data sets originating from others of the mode hop sequences in subsequent processing..

Visual disruption network and system, method, and computer program product thereof

Aspects of the disclosed: subject matter involve an airborne-based network for implementing a laser-based visual disruption countermeasure scan pattern system. Method, and computer program product.
Lockheed Martin Corporation

Visual disruption network and system, method, and computer program product thereof

Aspects of the disclosed subject matter involve an airborne-based network for implementing a laser-based visual disruption countermeasure scan pattern system method, and computer program product. The scan pattern can be comprised of a plurality of lasers each with their own scan pattern and may be used to disrupt an optical system of a weapon or an individual one vehicle in the network can transmit target information and/or scan information to one or more other vehicles or to a non-vehicle remote location in the network..
Lockheed Martin Corporation

Laser unit and optical fiber laser

A laser unit includes: multi-mode semiconductor lasers configured to output laser lights in multi-mode; an optical multiplexer configured to multiplex and output the laser lights; a multi-mode optical fiber configured to connect the multi-mode semiconductor lasers to the optical multiplexer, and including a core portion, a cladding portion, and a coated portion; a first bending portion formed to the multi-mode optical fiber and bent with a predetermined bending length and at a predetermined first bending radius; a radiation portion formed outside the coated portion at the first bending portion, and configured to radiate heat of the multi-mode optical fiber; and a second bending portion formed to the multi-mode optical fiber between the first bending portion and the optical multiplexer and bent at a predetermined second bending radius, wherein increase in a temperature at the second bending portion is restrained by radiation from the radiation portion.. .
Furukawa Electric Co., Ltd.

Single mode propagation in fibers and rods with large leakage channels

Various embodiments include large cores fibers that can propagate few modes or a single mode while introducing loss to higher order modes. Some of these fibers are holey fibers that comprise cladding features such as air-holes.
Imra America, Inc.

Automated surgical instruments and processes

An automated surgical instrument is disclosed that is computer controlled and provided with a high degree of autonomy for performing automated procedures within humans and other animals. It may be mobile under its own control and may include a plurality of means to disrupt tissue including lasers and water jets.

Three dimensional depth mapping using dynamic structured light

Apparatus for generating a dynamic structured light pattern for optical tracking in three-dimensional space, comprises an array of lasers, such as a vcsel laser array, to project light in a pattern into a three-dimensional space; and an optical element or elements arranged in cells. The cells are aligned with subsets of the laser array, and each cell individually applies a modulation, in particular an intensity modulation, to light from the laser or lasers of the subset, to provide a distinguishable and separately controllable part of the dynamic structured light pattern.
Oculus Vr, Llc

Lasers with beam-shape modification

A beam control structure for semiconductor lasers that allows modification of the shape of a beam allowing, for example, higher coupling into an optical fiber. The structure may comprise one or more of a tilted patio, a staircase, a reflective roof, and a reflective sidewall..
M/a-com Technology Solutions Holdings, Inc.

Nanosecond pulse laser device and alternate laser wavelength output method thereof

The present invention relates to a nanosecond pulse laser device. The nanosecond pulse laser device of the present invention comprises: a light source which outputs a nanosecond pulse laser beam; a lens which focuses the laser beam; a raman shift optical fiber which generates pulse lasers corresponding to a plurality of wavelengths through stimulated raman scattering of the focused laser beam; a wavelength divider which divides, from among the pulse lasers, the pulse lasers of a predetermined wavelength; an optical switch which selects the pulse lasers outputted from the wavelength divider to mutually alternate the wavelengths in response to a switch control signal which is applied from the outside; and a wavelength combiner which combines and outputs the pulse lasers whose wavelengths are alternatively outputted from the switch..
Pusan National University Industry-university Cooperation

Systems and techniques for termination of ports in fiber lasers

A technique is described for eliminating feedback light in a high-power optical device. An optical device is provided that generates, along an optical pathway, an output light at a desired signal wavelength, wherein the generation of the output light at the signal wavelength results in the generation of a feedback light at an undesired feedback wavelength.
Ofs Fitel, Llc

Airborne advertising platform

An airborne mobile advertising system for visual information dissemination. The invention comprises remote controlled drones singly or as multiple units configured to carry payloads of computer controlled high intensity light emission systems.

Bow sight apparatus having multiple lasers

A multiple laser sight system for an archery bow or the like configured so that the multiple laser systems can be calibrated together and having features such that the user can use one laser system during the day and one laser system during the light. The laser sight is further configured to not interfere with the optional use of conventional sighting pins and the use of evening infrared systems, like the prior art use of night vision goggles..

Laser printing system

The invention describes a laser printing system (100) for illuminating an object moving relative to a laser module of the laser printing system (100) in a working plane (180), the laser module comprising at least two laser arrays of semiconductor lasers and at least one optical element, wherein the optical element is adapted to image laser light emitted by the laser arrays, such that laser light of semiconductor lasers of one laser array is imaged to one pixel in the working plane of the laser printing system, and wherein the laser printing system is a 3d printing system for additive manufacturing and wherein two, three, four or a multitude of laser modules (201, 202) are provided, which are arranged in columns (c1, c2) perpendicular to a direction of movement (250) of the object in the working plane (180), and wherein the columns are staggered with respect to each other such that a first laser module (201) of a first column of laser modules (c1) is adapted to illuminate a first area (y1) of the object and a second laser module (202) of a second column (c2) of laser modules is adapted to illuminate a second area (y2) of the object, wherein the first area (y1) is adjacent to the second area (y2) such that continuous illumination of the object is enabled.. .
Eos Gmbh Electro Optical Systems

Safety-enhanced laser array

When an unsafe port with a loss of signal is detected, a transceiver may enable one laser in a group of lasers associated with the unsafe port and may disable the remaining lasers. Then, the transceiver may instruct a transmitter associated with the one laser to transmit an optical signal on the unsafe port using a reduced transmit power that is less than a threshold value associated with the class 1 conditions and at a different time than enabled lasers in other groups of lasers.
Oracle International Corporation

Depth mapping with a head mounted display using stereo cameras and structured light

A tracking system generates a structured light pattern in a local area. The system includes an array of lasers that generate light.
Oculus Vr, Llc

Electronically scored target array

Implementations of an electronically scored target array are provided. In some implementations, the electronically scored target array may be used for training individuals in the use of rifles, hand guns, and similar weapons.

Hybrid free space multiplexer for multichannel transmitter optical subassembly

Embodiments described herein include a multichannel transmitter optical subassembly that includes a plurality of lasers and a signal combiner. The plurality of lasers may be configured to emit light each with a different one of a plurality of light signals, each of the plurality of light signals having a wavelength within one of a plurality of wavelength bands.
Finisar Corporation

Ring constellations for decreased data latency and increased download rates

A plurality of spacecraft may be dispersed into a ring constellation or structure. Data may be wirelessly relayed between spacecraft similar to data flowing in a ring network.
The Aerospace Corporation

Lasers with beam-shape modification

A beam control structure for semiconductor lasers that allows modification of the shape of a beam allowing, for example, higher coupling into an optical fiber. The structure may comprise one or more of a tilted patio, a staircase, a reflective roof, and a reflective sidewall..
M/a-com Technology Solutions Holdings, Inc.

Synchronized tunable mode-locked lasers

A synchronized laser system for illuminating a sample with first and second laser light pulses, said system comprising: a trigger, said trigger being operative to issue first and second trigger signals, said first and second trigger signals being emitted at an adjustable frequency with a predetermined delay therebetween; a first tunable mode-locked laser operative for emitting said first laser light pulses in response to receiving a train of said first trigger signals, a first wavelength of said first laser light pulses being dependent on said adjustable frequency in accordance with a first wavelength-frequency relationship; a second tunable mode-locked laser operative for emitting said second laser light pulses in response to receiving a train of said second trigger signals, a second wavelength of said second laser light pulses being dependent on said adjustable frequency in accordance with a second wavelength-frequency relationship; wherein said predetermined delay is such that said first and second laser light pulses are emitted so as to arrive substantially simultaneously in said sample; and said first and second wavelength-frequency relationships are selected to result in a predetermined relationship between said first and second wavelengths at each frequency.. .
Genia Photonics Inc.

Fiber coupling efficiency of diode lasers

A system and method for increasing the fiber coupling efficiency of diode lasers is disclosed. The diode laser has a diode pump source for generating a force to pump a laser and a double clad fiber directly coupled to the diode pump source instead of coupling to the multimode fiber.
Bae Systems Information And Electronic Systems Integration Inc.

Systematic tracking, harvesting and in-space disposal of space debris

The embodiments of invention relates to the in-orbit clearance and disposal of space debris within approved geospatial orbital regions using a wide assortment of apparatus and devices encompassing trawler harvesting, lasers cannons and remote piloted handling methods. All events are guided and managed by integrated united states air force (usaf) geospatial software and database systems to locate, legally verify, and then remove and transport collected space debris to a disposal facility in high geostationary earth orbit (geo).

Mid-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..
The University Of Chicago

Using tunable lasers in the design, manufacture, and implementation of integrated optical elements

Disclosed are systems and methods that use a tunable laser during optical thin-film fabrication. One disclosed system includes a tunable laser capable of generating electromagnetic radiation, one or more thin-film devices arranged to receive the electromagnetic radiation, each thin-film device including one or more optical layers deposited on a corresponding substrate and configured to generate optically interacted radiation upon receiving the electromagnetic radiation, and an optical transducer arranged to receive the optically interacted radiation from each of the one or more thin-film devices and configured to generate output signals corresponding to the optically interacted radiation received from each of the one or more thin-film devices..
Halliburton Energy Services, Inc.

Method for mode control in multimode semiconductor waveguide lasers

One embodiment is a wide stripe semiconductor waveguide, which is cleaved at a talbot length thereof, the wide stripe semiconductor waveguide having facets with mirror coatings. A system provides for selective pumping the wide stripe semiconductor waveguide to create and support a talbot mode.
Northrop Grumman Systems Corporation

Fast calibration and programming optical components

A method and apparatus for calibrating and controlling tunable lasers are disclosed. Multiple methodologies disclosed herein may be used, alone or in combination, which significantly speed up a calibration time and thus provide a significant advantage over existing technology in calibrating the tunable lasers.
Oe Solutions America, Inc.

Semiconductor laser light source

In conventional semiconductor laser light sources, since intervals of light emitter waveguides are changed or stresses which are applied on chips of a laser array are controlled in the production process, there exists a problem that the productivity is lowered. A structure of a heat sink 3a, on which a semiconductor laser array 2 is mounted in which a plurality of semiconductor lasers are arrayed at equal intervals in a stripe width direction, is configured so that the heat radiation efficiencies of the plurality of semiconductor lasers are not constant between the central region and other regions in the stripe width direction.
Mitsubishi Electric Corporation

Lithographic printing plate precursors and coating

A coating for use with a hydrophilic sheet substrate to form a lithographic printing plate precursor, including at least one compound a silane compound and at least one compound b phosphinic acid or organic derivative thereof. Compounds a and b experience a synergistic interaction which substantially increases adhesion to the substrate of areas imaged by radiation.
Anocoil Corporation

High power optical switch

An optical system capable of routing primary and secondary high power lasers through a blocking switch is described.. .
Raytheon Company

Multiple integrated tips scanning probe microscope

Device and system for characterizing samples using multiple integrated tips scanning probe microscopy. Multiple integrated tips (mit) probes are comprised of two or more monolithically integrated and movable afm tips positioned to within nm of each other, enabling unprecedented micro to nanoscale probing functionality in vacuum or ambient conditions.
Xallent, Llc

Terahertz spectroscopy system and method

A terahertz spectrometer includes: a terahertz-wave emitter and a terahertz receiver elements. The terahertz wave generated by means of generating beat frequency corresponding to the difference between two rapidly tunable continuous wave lasers.
Novatrans Group Sa

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.

Metal contacts to group iv semiconductors by inserting interfacial atomic monolayers

Techniques for reducing the specific contact resistance of metal-semiconductor (group iv) junctions by interposing a monolayer of group v or group iii atoms at the interface between the metal and the semiconductor, or interposing a bi-layer made of one monolayer of each, or interposing multiple such bi-layers. The resulting low specific resistance metal-group iv semiconductor junctions find application as a low resistance electrode in semiconductor devices including electronic devices (e.g., transistors, diodes, etc.) and optoelectronic devices (e.g., lasers, solar cells, photodetectors, etc.) and/or as a metal source and/or drain region (or a portion thereof) in a field effect transistor (fet).
Acorn Technologies, Inc.

Multiple-beam microlen

The invention addresses the coupling of light between one or more multicore fibers and optoelectronic transducers, such as lasers or photodetectors, and/or single core fibers. More specifically, the invention utilizes a single microlens element to couple multiple optical data signals between multiple optoelectronic transducers and multiple cores of a multiple-core fiber (mcf), or to couple signals from multiple single-core fibers to multiple cores of a mcf.
Commscope, Inc. Of North Carolina

Multiplexed optoelectronic engines

An example device includes a first semiconductor component comprising at least two lasers to emit light at a first wavelength; a second semiconductor component comprising at least two lasers to emit light at a second wavelength, the first wavelength being different from the second wavelength; and an optical multiplexer to receive light from two lasers at the first wavelength and light from two lasers at the second wavelength. The optical multiplexer component includes a first output interface to couple light from one laser at the first wavelength and light from one laser at the second wavelength to a first optical fiber, and a second output interface to couple light from one laser at the first wavelength and light from one laser at the second wavelength beams to a second optical fiber..
Hewlett Packard Enterprise Development Lp

Polarizing and polarization maintaining leakage channel fibers

This disclosure relates to polarizing optical fibers and polarization maintaining optical fibers, including active and/or passive implementations. An embodiment includes a polarizing (pz) optical fiber that includes stress applying parts (saps) disposed in a first cladding region, the saps comprising a material with a thermal expansion coefficient, αsap.
αsap−αcore

Laser device comprising optically pumped extended cavity laser

The invention describes a laser device (100) enabling controlled emission of individual laser beams (194). The laser device (100) comprises an optically pumped extended cavity laser with one gain element whereby a multitude of pump lasers (110) are provided in order to generate independent pump beams (191) and thus corresponding laser beams (194).
Koninklijke Philips N.v.

Ring laser sensor

The present invention is suitable for the technical field of sensing, and provides a ring laser sensor comprising a pump source, a common section, and a reference section and a detection section, the common section is provided with a gain medium, the common section and the reference section form a first ring laser resonator, and the common section and the detection section form a second ring laser resonator, lasers are transmitted oppositely in the first ring laser resonator and the second ring laser resonator, the detection section is provided with a sensing element capable of causing an optical path difference; the common section is provided with an output unit or each of the reference section and the detection is provided with the output unit, the output unit is connected to a photoelectric detector through a light uniting unit. In the present invention, two ring laser resonators with opposite transmission directions is provided, the detection section is provided with the sensing element, and because the frequencies of the laser are sensitive to the changes of the optical paths in the resonators, the sensitivity and accuracy of the sensor are high, and the two resonators of the sensor have common optical path, such that the sensor has good anti jamming capacity and is suitable for measuring the small changes in a variety of physical quantities..
Shenzhen University

Sensor based on laser

The present invention is suitable for the technical field of sensing, and provides an sensor based on laser, comprising a pump source, a common section, a reference section and a detection section, the common section is provided with a gain medium, and the detection section is provided with a sensing element capable of causing an optical path difference; the reference section and the detection section is connected to the common section though a first polarization splitting unit and a second polarization splitting unit; the common section is provided with an output unit or each of the reference section and the detection is provided with the output unit, the output unit is connected to a photoelectric detector through a light uniting unit; a polarization rotation unit is disposed between the light uniting unit and the output unit. In the present invention, a heterodyne interference is generated by the two lasers with different frequency, the amounts of physical quantities are determined by detecting the frequency difference; and because the frequencies of the laser oscillations are sensitive to the changes of the optical paths in the resonators, the sensitivity and accuracy of the sensor are high, and the two resonators of the sensor have common optical path, such that the sensor has good anti-jamming capacity and is suitable for measuring the small changes in a variety of physical quantities..
Shenzhen University

Landscape light

A landscape light incorporating two or more lasers or leds of different colors (e.g., red, green, white, blue) in the same housing, each laser or led preferably having a separate lens. The apparatus projects any of a variety of colors including red, green, white, blue, or other colors, or combinations of any colors, as well as providing an optional flash/pulse setting for the lights.
Telebrands Corp.

Flat-folded ceramic slab lasers

In at least one illustrative embodiment, a laser may include a ceramic body defining a chamber containing a laser gas. The chamber may include first and second slab waveguide sections extending along parallel first and second axes and a third slab waveguide section extending along a perpendicular third axis.
Iradion Laser, Inc.

Multiple laser optical assembly

A multiple laser optical assembly comprises two laser subassemblies with two lasers bonded on two bases respectively, a polarization beam combiner (pbc), a lens, a mechanical housing and an optical fiber. The two subassemblies are configured to have orthogonal polarization directions from the two lasers and are assembled coaxially.

Quantum cascade laser (qcl) based gas sensing system and method

A system and method are disclosed for gas sensing over a wide tunable wavelength range provided by one or more quantum cascade lasers. A laser beam is generated within the wide tunable wavelength range, which is given by the sum of the wavelength ranges from the individual lasers.
Block Engineering, Llc

Detection system

A threat detection system is disclosed. The threat detection system may also determine the location of the threat.
Vision Engineering Solutions, Llc

Short duration pulse grid pattern laser treatment and methods

Embodiments of the invention provide systems for treating the retina and/or other areas of a patient's eye. The procedures may involve using one or more treatment beams (e.g., lasers) to cause photocoagulation or laser coagulation to finely cauterize ocular blood vessels and/or prevent blood vessel growth to induce one or more therapeutic benefits.
Iridex Corporation

Wavelength locking multimode diode lasers with fiber bragg grating in large mode area core

According to another aspect of the present disclosed technology, a diode laser assembly, includes an optical fiber having a cladding and a large mode area (lma) core, wherein the lma core comprises a fiber bragg grating disposed within the lma core, a plurality of diode lasers configured to emit light, optics configured to receive the light and to couple the light into the lma core, and one or more features in the optical fiber to couple higher order modes of the light leaving substantially single mode light to propagate in the lma core wherein a portion of the single mode light propagating in the lma core is reflected by the fiber bragg grating and is coupled back through the optics into the plurality of diode lasers to lock the wavelength of light emitted from each diode laser of the plurality.. .
Nlight Photonics

Light source device and projector having the light source device

A light source device includes light sources having semiconductor lasers, a condensing lens, an optical component between the light sources and the condensing lens, and a phosphor wheel. The optical component has an inclined optical surface, and the inclined optical surface has different inclination angles for each of the light sources.
Nichia Corporation

Target holders, multiple incidence angle, and multizone heating for bnnt synthesis

In the synthesis of boron nitride nanotubes (bnnts) via high temperature, high pressure methods, a boron feedstock may be elevated above its melting point in a nitrogen environment at an elevated pressure. Methods and apparatus for supporting the boron feedstock and subsequent boron melt are described that enhance bnnt synthesis.
Bnnt, Llc

Method and generation of coherent frequency combs

Embodiments of the invention provide apparatuses and methods for phase correlated seeding of parametric mixer and for generating coherent frequency combs. The parametric mixer may use two phase-correlated optical waves with different carrier frequencies to generate new optical waves centered at frequencies differing from the input waves, while retaining the input wave coherent properties.
Ram Photonics, Llc

Systems, methods and devices for collecting data at remote oil and natural gas sites

Systems, methods and devices are provided for detecting airborne particulates and/or gases at remote oil and natural gas sites, such as wells, and/or processing and refinery plants. One such system comprises an unmanned aerial vehicle (uav), such as a drone aircraft, configured for aerial dispatch to the remote site and wireless connection to an external processor, cloud apparatus or the like.

High-bandwidth underwater data communication system

An apparatus is described which uses directly modulated ingan light-emitting diodes (leds) or ingan lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities..
Fairfield Industries Incorporated

Edge-emitting laser chip wafer layout that facilitates on-wafer testing of the lasers

Edge-emitting laser chip wafer layouts are provided that enable a variety of tests to be performed while the chips are on the wafer, including side-mode suppression ratio (smsr) tests. The laser chip wafer layouts include turning mirrors that direct light passing out of at least one of the facets of the chips away from the wafer.
Avago Technologies General Ip (singapore) Pte. Ltd

Fat-fiber adapter for pump use

As kilowatt class fiber laser and amplifier systems become more in demand, there are ongoing efforts to improve optical fiber laser and amplifier designs to maximize efficiency and further increase the capacity of these high-energy optical fiber lasers and amplifiers. The present disclosure provides a fiber laser or amplifier system configured to efficiently and conveniently generate and couple high numerical aperture and high-energy pump light into a fiber laser or amplifier system..
Ofs Fitel, Llc

Pump and signal combiner for high numerical aperture use

As kilowatt class fiber laser and amplifier systems become more in demand, there are ongoing efforts to improve optical fiber laser and amplifier designs to maximize efficiency and further increase the capacity of these high-energy optical fiber lasers and amplifiers. The present disclosure provides a fiber laser or amplifier system configured to efficiently and conveniently generate and couple high numerical aperture and high-energy pump light into a fiber laser or amplifier system..
Ofs Fitel, Llc

Mass spectrometry using laserspray ionization

Disclosed herein are systems and methods for mass spectrometry using laserspray ionization (lsi). Lsi can create multiply-charged ions at atmospheric pressure for analysis and allows for analysis of high molecular weight molecules including molecules over 4000 daltons.
Wayne State University

Electrical switch device

Implementations of an electrical switch device are provided. In some implementations, the electrical switch device may be used to operate electrically powered firearm accessories (e.g., lasers and illumination tools).

Method and system for three-dimensional motion-tracking

One embodiment provides an apparatus for tracking movements of an object in a three-dimensional (3d) space. The apparatus can include one or more lasers, one or more optical sensors, and a processing unit.

Diffractive waveplate lenses and applications

Optical lenses, systems, devices and methods for fabricating and manufacturing diffractive waveplate lenses that allow setting the focal length sign of an optical system by positioning the lens with its front or back surface with respect to an incoming circular polarized light beam. Applications for the lenses include optical systems comprising fibers, diode lasers, waveplates, polarizers, and variable lenses, particularly, in the form of a set of polymer films with re-attachable adhesive layers.

Systems and methods for detecting a particle

A cytometry system having a computing system. The system includes a plurality of lasers controlled by the computing system to emit laser light.
Stratedigm, Inc.

Apparatus for generating high contrast optical signals, and exemplary applications

A display apparatus generates a high visibility optical signal, such as an icon, the icon comprising a symbol, shape, or other image-like representation. The icon becomes visible at an observation point during an illumination on-state.
Imra America, Inc.

Chemical, biological, and radioactive contamination remediation with lasers

A laser is used to clean surfaces contaminated with chemical, biological, or radioactive substances. The laser directs a laser beam onto the surfaces and the ejecta is collected by a getter which can be a version of vacuum cleaner.
Lawrence Livermore National Security, Llc

Gas-discharge laser power and energy control

The present disclosure is directed to simultaneously controlling peak pulse power and pulse energy in gas-discharge lasers. In an aspect, a radio-frequency power supply that is coupled to a gas-discharge laser is turned on to initiate delivery of a laser pulse.
Coherent, Inc.

Context imaging raman spectrometer

Methods and systems for raman spectroscopy and context imaging are disclosed. One or two lasers can be used to excite raman scattering in a sample, while a plurality of leds can illuminate the sample at a different wavelength.
California Institute Of Technology

Virtual lasers for interacting with augmented reality environments

Systems and methods enabling users to interact with an augmented reality environment are disclosed. Real-world objects may have unique markers which are recognized by mobile devices.
Eon Reality, Inc.

Illumination light projection for a depth camera

Various embodiments of tof depth cameras and methods for illuminating image environments with illumination light are provided herein. In one example, a tof depth camera configured to collect image data from an image environment illuminated by illumination light includes a light source including a plurality of surface-emitting lasers configured to generate coherent light.
Microsoft Technology Licensing, Llc

System and correlating camera views

A method for correlating views of two or more video camera systems includes obtaining a plurality of data point coordinate sets to represent relative positioning between the camera systems and data point objects in the environment. The views may be correlated through interpolation or extrapolation using the obtained data point coordinate sets.

Antenna feedback scheme for achieving narrow beam emission from plasmonic lasers

A distributed antenna-coupling feedback scheme and specially designed distributed feedback (dfb) metallic cavity and grating for laser application and in particular to plasmonic lasers ensuring a predesigned phase condition such that a mode traveling inside a waveguide is coupled/phase-locked to a mode traveling on the top metal improving the beam quality of the laser.. .

Ultra-wideband supercontinuum light source based on dual-band fiber laser

The present invention is applicable to the field of fiber laser technologies. In the present invention, two fiber lasers of different bands are used as seed sources to form a dual-band fiber laser that outputs beams of two bands simultaneously, and the dual-band fiber laser is used to pump the cascaded evolving assemblies.



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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