SEARCH:      Monitor Keywords |  Custom RSS

Coherent light generators December patent applications/inventions, industry category 12/09

20090323732 - Optical wave generator: An optical wave generator comprising a first-level Raman sideband generator (RSBG). The first-level RSBG comprises a first hollow-core photonic crystal fibre HCPCF (203) arranged to be filled with a Raman active gas and a first two-pump continuous wave (CW) laser source (200) having a first pump laser beam (201) at... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20090323733 - Blue laser and light cure polymers: Portable, battery charged, compact, laser instrument is presented for polymerizing light cure polymer that is used in civil engineering, aerospace engineering, medical and dental. Blue laser beam with wave length of 473 nm generated from semiconductor laser diode.... Agent: Ahmad Fawaz Charkas

20090323736 - High brightness laser module: A powerful high-brightness laser pump modules is configured with a plurality of spaced laser diodes each generating a light beam at a pump wavelength, and respective groups of optical components guiding the light beams along parallel light paths. The groups of the optical components each include a lens assembly and... Agent: Ipg Photonics Corporation

20090323734 - Not temperature stabilized pulsed laser diode and all fibre power amplifier: So as to establish laser light with a desired characteristic downstream a laser light source (151), the light is amplified by an amplifier (107) which is gain modulated (E107G).... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090323735 - Pulse stretching optical fiber and related systems and methods: An optical fiber for performing pulse stretching, and fiber laser systems and methods using the pulse-stretching fiber are disclosed. The pulse-stretching (PS) fiber has low fourth-order dispersion (dispersion curvature) and a third order dispersion (dispersion slope) with a small negative, nearly zero or small positive value. Two different types of... Agent: Corning Incorporated

20090323737 - System and devices for improving external cavity diode lasers using wavelength and mode sensors and compact optical paths: External cavity laser (ECL) systems and methods for measuring the wavelength of the ECL by using a portion of the positional light received by the position sensitive detector (PSD) to determine the position of a wavelength tuning element (such as a diffraction grating or an etalon), for determining the longitudinal... Agent: Vedder Price, PC

20090323738 - Systems and methods for generating a tunable laser beam: Systems and methods of generating a tunable laser beam are disclosed. An example method includes: generating coherent optical beams from a plurality of semiconductor optical amplifiers (SOAs); combining the coherent optical beams into a combined coherent optical beam; and tuning the combined beam to a selected frequency range to output... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090323739 - Laser optical system: A compact optical system is provided for delivering laser radiation with high optical efficiency and uniformity. The optical system includes, in order of the propagation of light, an expander for producing a collimated beam, a beam shaper including a flat window with a diffraction pattern on one side for transforming... Agent: Mills & Onello LLP

20090323741 - Digital laser pulse shaping module and system: A digital pulse shaping module for controlling a pulsed laser oscillator according to a digital input waveform is provided. The pulse shaping module includes a clock generator generating a plurality of phase-related clock signals and a shape generator which outputs a digital shape signal corresponding to the digital input waveform... Agent: Merchant & Gould PC

20090323740 - Systems and methods for control of ultra short pulse amplification: A method of controlling an ultra-short pulse system is described comprising controlling an optical power within the ultra-short pulse system and control-system controlling a width of an optical pulse. In some embodiments, the method also comprises tuning a compressor by controlling a number of passes of the optical pulse through... Agent: Carr & Ferrell LLP

20090323742 - Laser light source apparatus: A laser light source apparatus includes a laser light source; a heat exchanger that includes a plurality of cooling fins and that cools the laser light source; a driving circuit that drives the laser light source; a housing including an intake port and an exhaust port; and an air-cooling fan... Agent: Birch Stewart Kolasch & Birch

20090323743 - High-power, high-throughput microwave discharge singlet oxygen generator for advanced electrical oxygen-iodine lasers: A laser device includes an optical resonator, a microwave driven discharge device, and a source for a second gas. The microwave driven discharge device is disposed relative to the optical resonator. The microwave driven discharge device operates at a discharge power and gas flow rate to produce a selected amount... Agent: Proskauer Rose LLP

20090323744 - Circuit and method for driving light-emitting element and optical transmitter: A circuit for driving a light-emitting element such as a laser diode LD has a boost circuit for boosting an input voltage to supply it to the light-emitting element, a photoreceptor such as a photodiode PD for monitoring light from the light-emitting element; and a boost control circuit for controlling... Agent: Mr. Jackson Chen

20090323745 - Semiconductor laser driving circuit, light emitting device, and disk drive: A semiconductor laser driving circuit has a circuit protection function at low temperature and includes a voltage current converter that converts an input voltage Vin, which is determined according to a desired light brightness of the semiconductor laser to be driven, into a current. A current limiter limits an output... Agent: Rohm Co., Ltd. C/o Keating & Bennett, LLP

20090323746 - Nitride semiconductor laser and method for fabricating same: In one embodiment of the present invention, in a method of fabricating a nitride semiconductor laser device, after an insulating film is formed on a layered nitride semiconductor portion on a substrate, a resist mask is formed on the insulating film, such that the insulating film is exposed near a... Agent: Harness, Dickey & Pierce, P.L.C

20090323747 - Organic solid-state dye laser: An organic solid-state dye laser (1) is disclosed comprising a substrate (2) and a resonator structure made of a thin film of organic semiconductor (3) formed on the substrate (2) wherein the thin film of organic semiconductor (3) is composed of an organic semiconductor material which is high in emission... Agent: Masao Yoshimura, Chen Yoshimura LLP

20090323748 - Photoelectric conversion device, photoelectric conversion module and method of manufacturing photoelectric conversion device: A photoelectric conversion device includes a circuit substrate that has a first concave portion having a light transmission hole, a first metal interconnection that is formed from a bottom of the first concave portion to a face of the circuit substrate where the first concave portion is formed, an optical... Agent: Staas & Halsey LLP

20090323749 - Light-emitting device with double intermediate layers between mesa stripe and iron-doped current blocking layer: A light-emitting device that reduces the leak current flowing along the sides of the mesa stripe is disclosed. The device provides the mesa stripe, the current blocking layer, and two intermediate layers put between the mesa stripe and the current blocking layer. One of intermediate layers has the p-type conduction... Agent: Smith, Gambrell & Russell

20090323750 - Semiconductor laser device and method of manufacturing the same as well as optical pickup: A semiconductor laser device includes a semiconductor device layer having an emission layer and formed with a current path on a semiconductor layer in the vicinity of the emission layer, a current blocking layer formed in the vicinity of the current path, and a heat-radiation layer formed to be provided... Agent: Ditthavong Mori & Steiner, P.C.

20090323751 - Method and device for using optical feedback to overcome bandwidth limitations caused by relaxation oscillation in vertical cavity surface emitting lasers (vcsels): A semiconductor device is provided that includes an optical feedback structure that is monolithically integrated with a VCSEL device and which extends the speed of the VCSEL device beyond the speed to which it would otherwise be limited due to relaxation oscillation. The optical feedback structure does not rely on... Agent: Kathy Manke Avago Technologies Limited

20090323752 - High brightness laser diode module: A high-brightness laser module is configured with a beam-compression unit capable of reducing a diameter of parallel light beams which are emitted by respective spaced apart individual laser diodes. The module further has an objective lens configured to losslessly launch the light with the reduced diameter into a fiber.... Agent: Ipg Photonics Corporation

20090323753 - Apparatus for inscribing containers: An apparatus for inscribing containers may include an inscription unit. The inscription unit may include a plurality of laser light sources and a plurality of light discharge bodies. The light discharge bodies may be arranged next to one another. The laser light sources may be solid-state lasers. Each light discharge... Agent: Rissman Hendricks & Oliverio, LLP

20090323754 - Amplification device comprising a laser amplifying medium of parallelepiped shape and pumping means comprising lamps: The present invention relates to an amplification device comprising an amplifying medium (2) of parallelepiped shape and pumping means comprising lamps (5) emitting first radiation in a frequency range useful for the amplification and second radiation capable of degrading the amplifying medium. It is characterized in that lamps (5) are... Agent: Lowe Hauptman Ham & Berner, LLP

20090323755 - Optical resonator and laser light source: An optical resonator includes an optical waveguide with a core surrounded by a clad of lower refractive index. The optical waveguide includes a non-terminated ring-type optical waveguide for resonant propagation of light and an input-output optical waveguide, unitarily coupled to the ring-type optical waveguide, for output of light from the... Agent: Rabin & Berdo, PC

20090316732 - Fiber optic power laser device: A power fibre laser device includes a power laser diode emitting a pump wave, an optical resonator including fully reflective and partially reflective ends, an amplifying multimode optical fibre, and an optical element coupling the pump wave in the multimode optical fibre. The optical resonator includes at least one submodule... Agent: Young & Thompson

20090316734 - Laser device comprising means for controlling the phase of a large number of coherent sources: processing/display means (6) for processing the detected phase law and for displaying it on the spatial modulator, said spatial modulator being positioned so as to be able to be read by the signal wave and thus generate a phase-modulated signal wave selectively at each of the fibre amplifiers, compensating for... Agent: Lariviere, Grubman & Payne, LLP

20090316733 - Optical fiber for a fiber laser and fiber laser using the same: The present invention provides an optical fiber, for use in a fiber laser, from which a high-quality single-mode laser beam with high optical power is obtained and also provides a fiber laser that uses the optical fiber. The novel optical fiber, which includes a core to which a rare earth... Agent: Brundidge & Stanger, P.C.

20090316735 - Mode-locked solid-state laser apparatus: In a mode-locked laser-diode-excited laser apparatus: a solid-state laser medium is arranged at a distance of at most twice the Rayleigh range from a saturable absorbing mirror with a depth of absorbing modulation of at least 0.4%; the total intracavity dispersion is smaller than zero and makes oscillating light have... Agent: Sughrue Mion, PLLC

20090316736 - Mode-locked solid-state laser apparatus: In a mode-locked laser-diode-excited laser apparatus: a solid-state laser medium is arranged at a distance of at most twice the Rayleigh range from a saturable absorbing mirror with a depth of absorbing modulation of at least 0.4%; the total intracavity dispersion is smaller than zero and makes oscillating light have... Agent: Sughrue Mion, PLLC

20090316737 - Mode-locked solid-state laser apparatus: In a mode-locked laser-diode-excited laser apparatus: a solid-state laser medium is arranged at a distance of at most twice the Rayleigh range from a saturable absorbing mirror with a depth of absorbing modulation of at least 0.4%; the total intracavity dispersion is smaller than zero and makes oscillating light have... Agent: Sughrue Mion, PLLC

20090316738 - Device for amplitude and phase programming of long light pulses with narrow spectral band starting from a modulator of short light pulses with wide spectral band: Device for adaptation of a programmable generator of ultra short wide spectral band light pulses, to long narrow spectral band light pulses comprising a laser source (1) of ultra-short wide spectral band pulses, a device (2) for dispersion of ultra-short pulses output from said laser source (1), a first non-linear... Agent: Browdy And Neimark, P.l.l.c. 624 Ninth Street, Nw

20090316739 - Optical wavelength control circuit and method: In an optical wavelength control circuit, an activation control circuit outputs an optical output setting signal to a laser unit to set its optical output, and simultaneously outputs a temperature setting signal and a wavelength setting signal. A temperature error detection circuit outputs a temperature error signal. A wavelength error... Agent: Mr. Jackson Chen

20090316740 - Light source that utilizes small footprint reference gas cells for multiple laser frequency stabilization: A light source and the method for operating the same are disclosed. The light source includes first and second lasers, and first and second wavelength control assemblies. The lasers emit first and second light beams, respectively, at wavelengths that are determined by first and second wavelength control signals. First and... Agent: Agilent Technologies Inc.

20090316742 - Semiconductor laser device and driving method of the same: A semiconductor laser device according to the present invention outputs light while periodically varying the temperature of a semiconductor laser, an optical waveguide, or a diffraction grating, outputs light while causing the optical waveguide or the diffraction grating to mechanically and periodically vary, or causes return light, which varies periodically... Agent: Darby & Darby P.C.

20090316741 - Temperature control apparatus and optical transmission device using same: A temperature control apparatus that performs stabile temperature control operation, besides avoiding generation of unwanted noise. A thermo-control device cools or heats an object according to a supply current that a thermo-control driver provides according to a specified control voltage. A temperature sensor observes the temperature of the object. A... Agent: Staas & Halsey LLP

20090316743 - Laser diode driver with adaptive compliance voltage: A laser diode driver with means for adjusting the compliance voltage to allow a current source to accurately reproduce a current command while simultaneously minimizing the power dissipation of the current source. For a slowly-varying or DC current command, the compliance voltage is continuously adjusted to limit the power dissipation... Agent: Vierra Magen Marcus & Deniro LLP

20090316744 - Semiconductor laser, method for manufacturing semiconductor laser, optical disk device, and optical pickup: A semiconductor laser including: a nitride III-V compound semiconductor substrate configured to have a first planar area, a second planar area, and a third planar area in a major surface, the first planar area being formed of a C-plane, the second planar area being continuous with the first planar area... Agent: Sonnenschein Nath & Rosenthal LLP

20090316745 - Optical module: A laser diode has a horizontal cavity and a mirror attached to the horizontal cavity at an angle of substantially 45° or substantially 135°. The laser diode is mounted on a stem substantially horizontally with taking light vertically emitted to the horizontal cavity as an optical signal, and light horizontally... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090316746 - Slab type laser apparatus: A slab type laser apparatus has a slab type gas laser medium part formed in a region defined by a pair of electrode flat plates oppositely disposed in parallel with each other in a space to be filled with a gas laser medium which is excited by high-frequency electric power.... Agent: Wenderoth, Lind & Ponack, L.L.P.

20090310628 - Fiber laser processing method and fiber laser processing apparatus: A fiber laser processing apparatus controls a LD drive current LD in a power feedback control mode (FIG. 3E) such that output of a fiber laser beam FB rises substantially from zero or a value around zero to a preceding level having no substantial effect on laser processing and arrives... Agent: Wenderoth, Lind & Ponack, L.L.P.

20090310627 - Laser for providing pulsed light and reflectometric apparatus incorporating such a laser: A laser for generating laser light pulses comprises a cavity containing an active optical gain medium (102) and a spectral filtering device (104), a delay device (110) for delaying light by a predetermined delay time (Δt), means (106) for extracting a portion of laser light from the cavity, launching said... Agent: Adams Patent & Trademark Agency

20090310629 - Optical locking based on optical resonators with high quality factors: Techniques and devices for providing optical locking of optical resonators and lasers.... Agent: Fish & Richardson, PC

20090310630 - Semiconductor integrated device: A semiconductor integrated device includes a plurality of wavelength tunable lasers, provided on a semiconductor substrate, and having oscillation wavelength ranges different from each other. Each of the wavelength tunable lasers includes an optical waveguide including, alternately in an optical axis direction, a gain waveguide portion and a wavelength controlling... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20090310631 - High-repetition-rate guided-mode femtosecond laser: Femtosecond pulse trains in waveguide lasers with high fundamental repetition rates are achieved by exploiting the nonlinearity in the waveguide. Components of the apparatus include an optical resonator, a saturable absorber for starting and stabilizing mode-locking, and a gain element. Part of the laser cavity or the entire laser cavity... Agent: Modern Times Legal

20090310632 - Surface emitting laser element, surface emitting laser array, optical scanning device, and image forming apparatus: In a surface emitting laser element, on an inclined substrate, a resonator structural body including an active layer, and a lower semiconductor DBR and an upper semiconductor DBR sandwiching the resonator structural body are stacked. A shape of a current passing-through region in an oxide confinement structure of the upper... Agent: Cooper & Dunham, LLP

20090310633 - Pulse width modulation signal generating device, image display apparatus including pulse width modulation signal generating device, and pulse width modulation signal generating method: A pulse width modulation signal generating device which generates a pulse width modulation signal for modulating laser beam according to image data includes: a cycle signal output circuit which outputs a cycle signal having a cycle corresponding to a drawing rate for drawing the image data by the laser beam;... Agent: Oliff & Berridge, PLC

20090310634 - Stabilized laser source with very high relative feedback and narrow bandwidth: This invention relates to the stabilization of a laser source used in opto-electronics, specifically a source comprising a semiconductor laser diode. Such laser sources are often used as so-called pump lasers for fiber amplifiers in the field of optical communication, erbium-doped fiber amplifiers being a prominent example. Such lasers are... Agent: Mark D. Saralino (general) Renner, Otto, Boisselle & Sklar, LLP

20090310635 - Wavelength locker and laser package including same: A wavelength locker may include a first optical detector configured to detect light, wherein the first optical detector is at least partially transparent to the light. The wavelength locker may further include an optical interferometer optically coupled to the first optical detector and to a second optical detector. The optical... Agent: Applied Optoelectronics, Inc.

20090310636 - Light intensity boost for subpixel enhancement: Techniques are disclosed that enable fine features such as serifs and narrow strokes of texts to be produced by xerographic devices, for example. The fine features may be generated by subpixels which are produced when a pulse width used to image a pixel is shorter than a corresponding physical size... Agent: Oliff & Berridge, PLC.

20090310638 - Semiconductor laser device: In a semiconductor laser device, a first lead has a mounting portion for mounting a semiconductor laser element on its top surface via a submount member, and a lead portion extending from the mounting portion. Given that a direction in which a primary beam is emitted from the laser element... Agent: Morrison & Foerster LLP

20090310637 - Surface emitting laser element and method of fabricating the same: A convex-portion forming layer is formed between a current-confinement aperture and a multilayer mirror, and forms a convex portion on each boundary between layers forming the multilayer mirror. The convex portion includes a plane equal to or larger than a spot size of the laser light, where the spot size... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090310639 - Laser device: A cascade laser device, including a multilayer film structure with a multiple quantum well including a potential barrier and a quantum well; and an electric field applying portion for applying an electric field to the multilayer film structure. The multilayer film structure includes at least two first regions and a... Agent: Fitzpatrick Cella Harper & Scinto

20090310640 - Mocvd growth technique for planar semipolar (al, in, ga, b)n based light emitting diodes: A III-nitride optoelectronic device comprising a light emitting diode (LED) or laser diode with a peak emission wavelength longer than 500 nm. The III-nitride device has a dislocation density, originating from interfaces between an indium containing well layer and barrier layers, less than 9×109 cm−2. The III-nitride device is grown... Agent: Gates & Cooper LLP Howard Hughes Center

20090310641 - Laser light source, planar light source, and liquid crystal display device: A laser light source, a surface light source and a liquid crystal display apparatus that can reduce speckle without relying upon mechanical vibrations. The laser light source (100) provides a light emitting element (101) emitting laser light; a deflection element (102) refracting or reflecting the laser light emitted from the... Agent: Greenblum & Bernstein, P.L.C

20090304033 - Laser for generating multiple wavelengths: A laser comprising: a first reflector and a second reflector defining a first resonator cavity; a third reflector defining a second resonator cavity with the first reflector; a laser material disposed such that it is located in both the first and the second resonator cavities, the laser material being capable... Agent: Knobbe Martens Olson & Bear LLP

20090304034 - Electrically pumped broadly tunable mid-infrared lasers based on quantum confined transition metal doped semiconductors: Electrically pumped mid-IR semiconductor lasers that are operable at room temperature and possess a range of tunability up to 1100 nm, which constitutes a revolutionary (1-2 orders of magnitude) improvement in the range of tunability over existing semiconductor laser technology utilizing Doped quantum confined host material (DQCH) with characteristic spatial... Agent: Fish & Richardson, PC

20090304035 - Laser transmitter and method: A laser transmitter projects a beam of laser light outward while raising and lowering the beam. The beam may define a conical surface of varying inclination. The transmitter includes a laser source that directs a beam generally vertically, and a beam diverting element. The beam diverting element is positioned in... Agent: Dinsmore & Shohl LLP

20090304036 - Vertical cavity surface emitting laser device and vertical cavity surface emitting laser array: l

20090304037 - Laser diode, optical pickup device, optical disk apparatus, and optical communications equipment: A laser diode capable of reducing a radiating angle θ⊥ in the vertical direction, an optical pickup device, an optical disk apparatus, and optical communications equipment, all equipped with the laser diode which increases optical coupling efficiency. It has a first cladding layer of the first conductive type formed on... Agent: Sonnenschein Nath & Rosenthal LLP

20090304039 - Optoelectronic semiconductor element: An optoelectronic semiconductor component has a semiconductor body (1) comprising a surface emitting vertical emitter region (2) comprising a vertical emitter layer (3), at least one pump source (4) provided for optically pumping the vertical emitter layer (3), and a radiation passage area (26) through which electromagnetic radiation (31) generated... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20090304038 - Semiconductor laser device: A semiconductor laser device comprising an optically pumped surface emitting vertical emitter (1), which emits in a vertical main radiation direction, and at least one monolithically integrated pump radiation source (2) for optically pumping the vertical emitter (1), wherein the pump radiation source (2) emits pump radiation in a pump... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20090304040 - Diode-pumped cavity: A side-pumped, diode-pumped solid-state laser cavity includes a conductively cooled housing having an opening O for pump radiation from a diode array in close proximity to a laser rod. The pump light is absorbed by the rod and excites the laser ions. The cavity includes a thin, diffuse reflector encircling... Agent: Nixon Peabody, LLP