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Coherent light generators November recently filed with US Patent Office 11/09

20090290604 - Micro free electron laser (fel): A charged particle beam including charged particles (e.g., electrons) is generated from a charged particle source (e.g., a cathode or scanning electron beam). As the beam is projected, it passes between plural alternating electric fields. The attraction of the charged particles to their oppositely charged fields accelerates the charged particles,... Agent: Davidson Berquist Jackson & Gowdey LLP

20090290605 - Compact, efficient and robust ultraviolet solid-state laser sources based on nonlinear frequency conversion in periodically poled materials: A compact and efficient ultraviolet laser source based on a optically-pumped solid-state or fiber laser that produces near-infrared output light suitable for nonlinear frequency conversion. The infrared laser output is frequency tripled or quadrupled to produce light in the ultraviolet wavelength range (200 nm to 400 nm). The novel technology... Agent: Dickinson Wright PLLC

20090290606 - Mode-locked external-cavity surface-emitting semiconductor laser: A laser resonator includes an OPS gain-structure that is pumped with optical pulses repeatedly delivered at a pulse-repetition frequency corresponding to a resonant frequency of the laser resonator. The laser resonator additionally includes a passive mode-locking arrangement such that the resonator delivers mode-locked optical pulses. In one example the laser... Agent: Coherent, Inc. C/o Morrison & Forester

20090290607 - Signal processing device for controlling laser output and device for observing laser action process: The present invention relates to a signal processing device for controlling laser output and a device for observing laser action process. The device for observation includes a video camera for image acquisition and a monitor connected with the video camera, and it further includes a signal processing device for controlling... Agent: NovatechIPLaw

20090290608 - Photochemistry laser diode assembly and photochemistry sheet having the same: A laser diode (LD) assembly for medical therapy and a medical therapy sheet having the same, which are capable of facilitating the assembly and maintenance of a laser diode (LD) which can emit laser beams or beams having a wavelength which is the same as or similar to that of... Agent: Hyun Jong Park Park & Associates Intellectual Property Law LLC

20090290609 - Laser driving apparatus: Laser driving apparatus in which a temperature is controlled such that an optical output is maximum, even when a laser device using an optical wavelength conversion element is used in a backlight source of a liquid crystal display that adjusts light dynamically. Current detection section 5 detects an average value... Agent: Hamre, Schumann, Mueller & Larson P.C.

20090290610 - Method for laterally cutting through a semiconductor wafer and optoelectronic component: A method for laterally dividing a semiconductor wafer (1) comprises the method steps of: providing a growth substrate (2); epitaxially growing a semiconductor layer sequence (3), which comprises a functional semiconductor layer (5), onto the growth substrate (2); applying a mask layer (10) to partial regions of the semiconductor layer... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20090290611 - Semiconductor laser and manufacturing method therefor: A semiconductor laser comprises: a ridge structure including a p-type cladding layer, an active layer, and an n-type cladding layer stacked on one another; and a burying layer burying sides of the ridge structure. The burying layer includes a p-type semiconductor layer and an n-type semiconductor layer that form a... Agent: Leydig Voit & Mayer, Ltd

20090290612 - Semiconductor laser: A semiconductor laser having a double channel ridge structure includes: a ridge; channel portions located on opposite sides of the ridge, sandwiching the ridge, and having an equivalent refractive index lower than the equivalent refractive index of the ridge; and layers defining outside surfaces of the channel portions and, having... Agent: Leydig Voit & Mayer, Ltd

20090290613 - External cavity laser assembly including external chirped exit reflector for improved linearity: An external cavity laser assembly includes an external chirped exit reflector configured to reduce changes in reflectivity, thereby improving linearity. The chirped exit reflector may be configured to provide a reflectivity profile with a substantially flat peak portion, for example, as compared to the reflectivity profile of a uniform period... Agent: Applied Optoelectronics, Inc.

20090285244 - Mid-ir laser for generation of ultrasound: A compact high average power mid infrared range laser for ultrasound inspection. The laser comprises one of a Nd:YAG or Yb:YAG laser pumped by a diode at 808 nm to produce a 1 micron output beam. The 1 micron output beam is directed to an optical parametric oscillator where the... Agent: Bracewell & Giuliani LLP

20090285245 - Fiber-based ultrafast laser: An ultrafast laser system includes a seed laser that provides a signal laser pulse and a fiber-based first chirped reflective Bragg grating that reflects the signal laser pulse propagating along a first path and produce a stretched laser pulse longer than the signal laser pulse. A grating frequency of the... Agent: John Martin Taboada

20090285246 - Multi-resonant optical fiber laser system: Provided is a multi-resonant optical fiber laser system including a multi-resonator having an optical fiber containing at least one rare-earth element and an optical fiber inducing the stimulated Raman effect. The multi-resonant optical fiber laser system includes a pump light source irradiating pump light, a first resonator, which includes a... Agent: Rabin & Berdo, PC

20090285247 - Optical apparatus comprising a pump-light-guiding fiber: Optical apparatus including a pump-guiding fiber (30) including a fiber cladding (31), a fiber core (32) and an attachment section (33), the attachment section (33) including a straight core section (34) and a tapered core section (35), the pump-guiding fiber (30) being optically attached at one end thereof to a... Agent: Dekel Patent Ltd., David Klein

20090285248 - Uv light generation by frequency conversion of radiation of a ruby laser pumped with a second harmonic of a solid-state laser: A system and method for generating ultraviolet laser radiation by pumping a ruby based active laser medium in a second complex laser cavity with an output from a first complex laser cavity. The laser system includes a first complex optical cavity a second complex optical cavity, an output from the... Agent: Senniger Powers LLP

20090285249 - High power fiber chirped pulse amplification system utilizing telecom-type components: A chirped pulse amplifier (CPA) system having a mode-locked laser and a high-speed pulse selector, wherein the pulse selector modulates output pulses based upon an applied modulation voltage. A pulse selector may be an integrated electro-optic modulator, for example a LiNbO3 modulator, or an electro-absorption modulator. Difficulties related to free-space... Agent: Sughrue Mion, PLLC

20090285250 - Rotary disk laser and amplifier configurations: There is provided a rotary disk laser module including disk comprised of at least one lasing material. The lasing material may be excited by a laser excitation source, such as an optical pump beam directed onto the disk. The laser gain region contains excited lasing material and extends between the... Agent: Santanu Basu

20090285251 - Planar lightwave circuit and tunable laser device having the same: To prevent the property of an optical filter from being changed even if there is a change in a gap of directional couplers generated due to variations in manufacturing conditions so as to improve the yield. A tunable laser device includes a PLC and an SOA. The PLC includes: optical... Agent: Mr. Jackson Chen

20090285252 - Surface-emitting laser, surface-emitting laser array, optical scanning device, and image forming apparatus: A disclosed surface-emitting laser includes a substrate and multiple semiconductor layers stacked on the substrate. A normal of the principal plane of the substrate is inclined with respect to one of crystal orientations <1 0 0> toward one of crystal orientations <1 1 1>. The semiconductor layers include a resonator... Agent: Cooper & Dunham, LLP

20090285253 - Semiconductor light emitting device: A semiconductor light emitting device includes a first-conductivity-type first multilayer film reflecting mirror, and a second-conductivity-type second multilayer film reflecting mirror; a cavity layer; and a first conductive section, a second conductive section, and a third conductive section. The cavity layer has a stacked configuration including a first-conductivity-type or undoped... Agent: Rader Fishman & Grauer PLLC

20090285254 - Semiconductor laser device: A semiconductor laser device has a red laser element and an infrared laser element on a substrate. The red laser element has a double hetero structure in which an InGaP-based or AlGaInP-based active layer is interposed between a first conductivity type cladding layer and a second conductivity type cladding layer... Agent: Mcdermott Will & Emery LLP

20090285255 - Two-dimensional photonic crystal surface emitting laser light source: An objective of the present invention is to provide a surface emitting laser capable of selectively generating a laser oscillation in the fundamental mode and thereby emitting a single-wavelength laser light. In a surface emitting laser including an active layer and a two-dimensional photonic crystal provided on one side of... Agent: Oliff & Berridge, PLC

20090285256 - Method for forming a laser resonator so that optical components of the laser resonator are aligned: A laser resonator and method for forming the laser resonator are provided. The method comprises placing a housing for the laser resonator in an alignment fixture, attaching a bond plate to an optical component of the laser resonator, attaching a first end of an alignment arm to the bond plate... Agent: Sonnenschein Nath & Rosenthal LLP

20090279573 - Fiber laser and optical device: The fiber laser includes a solid-state laser fiber 3 doped with a rare earth element, a pump light source 1 for exciting the solid-state laser fiber, a reflective element 2 having wavelength dependency, and a wavelength conversion element 4 arranged at the output side of the solid-state laser fiber away... Agent: Wenderoth, Lind & Ponack L.L.P.

20090279574 - Frequency conversion laser head: A laser assembly is configured with a frequency conversion laser head operative to shift a fundamental frequency of input light to the desired frequency of an output light. The frequency conversion laser head includes a dump means operative to guide an unconverted output light at the fundamental frequency outside the... Agent: Ipg Photonics Corporation

20090279575 - Carrier substrate for micro device packaging: A carrier substrate (100) with laser sources includes a transparent center substrate (20), an upper substrate (30) adhered to the center substrate having openings (40) formed therein to expose the center substrate on a first side, and a lower substrate (32) adhered to the center substrate on a second side... Agent: Philips Intellectual Property & Standards

20090279576 - Dual output laser source: A dual output laser source provided on a substrate outputs light from a first and second output. A portion of the light generated by the laser is supplied to a first modulator via the first output. A second portion of the light generated by the laser is supplied to a... Agent: Infinera Corporation Ross Carothers

20090279577 - Multi-pass laser amplifier with staged gain mediums of varied absorption length: A laser amplification system is disclosed that enables reliable operation over large ambient temperature operating window, as well as a significant reduction of laser temperature sensitivity typically associated with diode pumped lasers. The techniques employed by the system effectively eliminate damaging gain hot spots and lower ASE and ESA thresholds,... Agent: Bae Systems

20090279578 - Dual wavelength laser device for optical communication: A dual wavelength laser device including a cap, a header, a first laser chip and a second laser chip. The cap includes a cap body and a lens embedded on the cap body. The header forms an accommodating space with the cap. The first laser chip is arranged in the... Agent: Hdls Patent & Trademark Services

20090279580 - Surface-emitting type semiconductor laser and method for manufacturing the same: To provide surface-emitting type semiconductor lasers and methods of manufacturing the same in which the polarization direction of laser light can be readily controlled, a surface-emitting type semiconductor laser includes a vertical resonator above a substrate. The vertical resonator includes a first mirror, an active layer and a second mirror... Agent: Oliff & Berridge, PLC

20090279579 - Two-dimensional photonic crystal surface-emitting laser light source: The present invention provides a two-dimensional photonic crystal surface-emitting laser light source capable of producing a beam that is not accompanied by unnecessary side lobes. A window-shaped electrode 36 having a central window 361 devoid of the electrode material is provided on the surface of a device substrate 31 from... Agent: Oliff & Berridge, PLC

20090274175 - Fiber laser: This fiber laser is provided with: a signal light source that outputs a signal light; a rare earth-doped fiber that amplifies and outputs the signal light from the signal light source; a Raman amplifying fiber that is routed as a portion of an optical transmission path in order to output... Agent: Sughrue Mion, PLLC

20090274176 - Compact, thermally stable multi-laser engine: 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, beam focusing optics, a thermally stable enclosure and a temperature controller. The thermally stable enclosure is configured to thermally and mechanically couple... Agent: Knobbe Martens Olson & Bear LLP

20090274177 - Turnable laser device: A laser apparatus includes a first surface-emitting laser device having an active region including at least one group of two or more quantum wells configured to generate photons and having an internal mirror configured to reflect the generated photons, and first and second opposing end cavity mirrors optically coupled to... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090274178 - Optical package having deformable mirrors for focus compensation: An optical package includes a semiconductor laser, an adjustable mirror and a wavelength conversion device comprising a waveguide portion. The semiconductor laser, adjustable mirror, and wavelength conversion device are oriented to form an optical pathway between an output of the semiconductor laser and an input of the wavelength conversion device.... Agent: Corning Incorporated

20090274179 - Dual diode converging module: An improved, dual diode convergence module which focuses the light energy of at least two separate diode chip laser wavelengths of into a single beam and, thus, which derives the benefit of both wavelengths.... Agent: Law Offices Of Charles L. Thoeming Bielen, Lampe & Thoeming, P.A.

20090274180 - All-fiber module for femtosecond pulse compression and supercontinuum generation: An all-fiber optical pulse compression arrangement comprises a concatenated arrangement of a section of input fiber (e.g., a single mode fiber), a graded-index (GRIN) fiber lens and a section of pulse-compressing fiber (e.g., LMA fiber). The GRIN fiber lens is used to provide mode matching between the input fiber (supporting... Agent: Wendy W. Koba, Esq.

20090274181 - Solid-state laser apparatus: A high gain solid-state laser apparatus capable of generating short-pulse terahertz waves with high efficiency is provided. The apparatus includes laser gain media 1 and an optical switch 3 that entraps seed light from a laser oscillator into the apparatus and outputs amplified laser light pulses from the apparatus. In... Agent: Staas & Halsey LLP

20090274182 - Light source, light source device, laser image forming device and integrated circuit: The light sources (10) according to the present invention includes a laser oscillator including a semiconductor laser (11), a drive circuit (18) for the semiconductor laser (11), an ACC circuit (13), an APC circuit (14), and a switch (SW) (15), and a starting drive current storage device (16), and is... Agent: Wenderoth, Lind & Ponack L.L.P.

20090274183 - Optical amplification module and laser light source apparatus: The present invention relates to an optical amplifier module, or the like, having a structure for enabling effective suppression of photodarkening and efficient optical amplification. The optical amplifier module comprises a first optical amplification waveguide which is comprised of a phosphate glass as a main component and includes a ytterbium-doped... Agent: Venable LLP

20090274184 - Optical unit: The present invention provides an optical unit capable of suppressing a thermal influence on the optical element even if a heating source such as a laser driver is disposed near the optical element. A light pickup unit 9 of the present invention includes a beam splitter 12 and a collimate... Agent: Dickinson Wright PLLC James E. Ledbetter, Esq.

20090274185 - Laser drive amplifier: A laser drive amplifier apparatus includes a device (e.g., Class A amplifier or digital-to-analog converter) driving a laser diode. A programmable switching power supply provides a power supply voltage for the device driving the laser diode. One or more voltages on the device are measured, and the power supply voltage... Agent: Microvision, Inc.

20090274186 - Surface-emitting type semiconductor laser: A surface-emitting type semiconductor laser includes: a lower mirror; an active layer formed above the lower mirror; an upper mirror formed above the active layer; and a lens section formed above the upper mirror, wherein n1>n, where λ is a design wavelength, n1 is a refractive index of a topmost... Agent: Harness, Dickey & Pierce, P.L.C

20090274187 - Semiconductor laser, module and optical transmitter: A semiconductor optical waveguide-A having an optical amplification function and a semiconductor optical waveguide-B having a light control function are integrated together on the same substrate. A facet of the semiconductor optical waveguide-A facing an isolation trench and a facet of the semiconductor optical waveguide-B facing the isolation trench are... Agent: Foley And Lardner LLP Suite 500

20090274188 - Light emitting device and fabrication method thereof: Disclosed herein is a light emitting device with improved life characteristics. The light emitting device comprises a circuit board having a recess, a reflection plane and an excitation source disposed in the recess, an overmolding overlying the reflection plane and the excitation source, a surface-inducing film formed on the overmolding,... Agent: Cantor Colburn, LLP

20090274189 - Scalable thermally efficient pump diode systems: Scalable, thermally efficient pump diode systems. These systems may include an arrangement of pump diodes and thermally conductive spacers mounted within a single indentation in a substrate or substrate clamps, so as to provide enhanced heat removal from the system. These systems also may include a plurality of such pump... Agent: Kolisch Hartwell, P.C.