Coherent light generators inventions

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.

20090262760 - Laser obstacle ranging and display: Apparatus, for detecting at least one object and preventing receiver burn-out, mounted on a vehicle, including a laser and at least one receiver, the receiver being coupled with the laser, the laser for transmitting a beam of light and the receiver for detecting reflections of the beam of light from... Agent: Cooley Godward Kronish LLP Attn: Patent Group

20090262761 - Pulsed linearly polarized optical fiber laser using unpolarized q-switched seed laser and having good output power stability: Optical fiber source for providing polarized optical pulses, comprising a Q-switched fiber laser for providing substantially unpolarized seed pulses of optical energy, where the Q-switched fiber laser can comprise a laser cavity having a Q-switch and an optical fiber comprising a gain medium, where the optical fiber need not be... Agent: Nufern Peter J. Rainville

20090262762 - Laser device and controlling method therefor: A laser device capable of preventing deterioration of a light signal and a controlling method therefor are provided. A wavelength tunable laser module provided with a resonator including the wavelength tunable filter and a semiconductor light amplifier having a phase adjustment region and a light amplifying region, in which a... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090262763 - Large-sized bismuth-zinc-borate nonlinear optical crystal and preparation methods and applications thereof: The present invention relates to a large-sized and high-quality bismuth-zinc-borate (Bi.sub.2 ZnB.sub.2 O.sub.7) single crystal, preparation methods and applications thereof. The crystal has cross-sectional dimensions greater than one centimeter, a nonlinear optical effect of about 3-4 times that of KH.sub.2 PO.sub.4 (KDP), and an optical transmission wavelength range of 330-3300... Agent: Robert E. Bushnell & Law Firm

20090262764 - Blue extended super continuum light source: Phase match between red shifted Raman solitons generated by the pump pulse and energy shed by the pump pulse at all frequencies with a group velocity below the pump pulse group velocity will lead to the formation of Cherenkov radiation. The solitons or “light bullets” will seed Cherenkov radiation in... Agent: Buchanan, Ingersoll & Rooney PC

20090262766 - Active terahertz metamaterial devices: Metamaterial structures are taught which provide for the modulation of terahertz frequency signals. Each element within an array of metamaterial (MM) elements comprises multiple loops and at least one gap. The MM elements may comprise resonators with conductive loops and insulated gaps, or the inverse in which insulated loops are... Agent: John P. O'banion O'banion & Ritchey LLP

20090262765 - Small dimension high-efficiency high-speed vertical-cavity surface-emitting lasers: A Vertical-Cavity Surface-Emitting Laser (VCSEL) is disclosed, comprising an optical cavity bounded by a top mirror and a bottom mirror, wherein the top mirror has multiple layers of alternating refractive index, of which the bottom three or more layers of the top mirror are deep oxidation layers having an increased... Agent: Gates & Cooper LLP Howard Hughes Center

20090262767 - Liquid cooled laser bar arrays incorporating diamond/copper expansion matched materials: A laser diode array having a plurality of diode bars bonded by a hard solder to expansion matched spacers and mounted on a gas or liquid cooled heatsink. The spacers are formed of a material such as copper/diamond composite material having a thermal expansion that closely matches that of the... Agent: Hayes Soloway P.C.

20090262768 - Compact mid-ir laser: A compact mid-IR laser device utilizes a quantum cascade laser to provide mid-IR frequencies suitable for use in molecular detection by signature absorption spectra. The compact nature of the device is obtained owing to an efficient heat transfer structure, the use of a small diameter aspheric lens and a monolithic... Agent: Roeder & Broder LLP

20090262769 - Laser drive circuit and use: A laser drive circuit and use of digital-to-analog converters is provided, each with a current input and a current output to set current values of partial currents switchable by means of digital channel signals to provide a laser current pulse at least on the basis of a sum of partial... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090262770 - Surface-emission laser diode, surface-emission laser diode array, optical scanning apparatus and image forming apparatus: A surface-emission laser diode of a vertical-cavity surface-emission laser structure includes a substrate and a mesa structure formed on the substrate, the mesa structure including therein a current confinement structure, wherein the current confinement structure includes a conductive current confinement region and an insulation region surrounding the conductive current confinement... Agent: Cooper & Dunham, LLP

20090262771 - Semiconductor laser device and method of manufacturing the same: A semiconductor laser device capable of suppressing damage of a waveguide is obtained. This GaN-based semiconductor laser chip (semiconductor laser device) includes an n-type GaN substrate of a nitride-based semiconductor and a semiconductor layer of a nitride-based semiconductor formed on the n-type GaN substrate and provided with a ridge portion... Agent: Ditthavong Mori & Steiner, P.C.

20090262772 - Semiconductor laser device and method of fabricating the same: A semiconductor laser device capable of reducing the threshold current and improving luminous efficiency and a method of fabricating the same are obtained. This semiconductor laser device comprises a semiconductor substrate having a principal surface and a semiconductor element layer, formed on the principal surface of the semiconductor substrate, having... Agent: Mcdermott Will & Emery LLP

20090262773 - Optoelectronic semiconductor component with current spreading layer: An optoelectronic semiconductor component comprising a semiconductor body (10) and a current spreading layer (3) is specified. The current spreading layer (3) is applied to the semiconductor body (10) at least in places. In this case, the current spreading layer (3) contains a metal (1) that forms a transparent electrically... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20090262774 - Sliced fiber bragg grating used as external cavity for semiconductor laser and solid state laser: A Fiber Bragg grating is sliced into small segments (such as 1 mm in length), the sliced fiber Bragg grating segments are used as external cavities for lasers to stabilize their center wavelength. In one embodiment, a semiconductor laser has an anti-reflection coating on the front facet and a high... Agent: Pin Long

20090262775 - Surface emitting laser: A surface emitting laser which oscillates at a wavelength X of a blue band, including a photonic crystal layer including a photonic crystal structure, an active layer provided on one surface of the photonic crystal layer, and an electrode provided on the other surface of the photonic crystal layer for... Agent: Fitzpatrick Cella Harper & Scinto