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| Number | Title | Issue Date |
| 7653113 | Pump laser integrated vertical external cavity surface emitting laser Provided is a pump laser integrated vertical external cavity surface emitting laser (VECSEL). The VECSEL may include a surface emitting laser unit including a first active layer having a multiple quantum well structure emitting light having a first wavelength, a ref... | 01/26/2010 |
| 7447249 | Lighting system A lighting system includes a microwave resonator (2) for generating a standing microwave in the internal space, and a gas cell (6) enclosing a medium is disposed in the internal space of the microwave resonator 2. The lighting system excites the... | 11/04/2008 |
| 7430230 | Tube solid-state laser An improved tube solid-state laser (SSL) is provided utilizing diode pumping, microchannel cooling, optics, and/or new coating and bonding processes. In one example, an amplifier module for the SSL includes a tube of laser gain material, a first substrate and a seco... | 09/30/2008 |
| 7428257 | Apparatus for optical pumping of a laser-active solid body An apparatus for optically pumping a laser-active solid body with pumping light coupled into the solid body through an end surface of the solid body is disclosed. The apparatus includes a laser-active solid body including an end surface though which pumping light is... | 09/23/2008 |
| 7388895 | Corner-pumping method and gain module for high power slab laser Corner pumping method and gain module for high power slab laser are disclosed. In one embodiment, said method comprises directing a pump light from one or more pump light sources each consisting of a high power diode array and its coupling system into a laser slab t... | 06/17/2008 |
| 7382818 | Diffusion bonded pump cavity A solid state pump cavity comprising a laser rod encased by diffusion bonding inside an outer cladding. The outer cladding provides the ability to efficiently conduct heat away from the laser rod. The outer cladding is also configured to absorb spontaneous laser rad... | 06/03/2008 |
| 7362497 | Optical fibre This invention relates to optical fibres, fibre lasers, fibre laser arrays and sensor systems comprising fibre laser arrays. Conventional fibre laser sensor arrangements comprise a plurality of fibre lasers arranged in series along a length of optical fibre. A pump ... | 04/22/2008 |
| 7352790 | Method and apparatus for producing an eye-safe laser A lasing apparatus includes a laser medium and a pump source. The laser medium includes one of a Holmium-doped fluoride crystal or a Holmium-doped fluorozirconate ZBLAN glass fiber. The pump source generates pulses that resonantly pump the laser medium such that the... | 04/01/2008 |
| 7342947 | Dark fiber laser array coupler A multiple-fiber, stretched, fused and cleaved coupler designed to act as an output window to a fiber laser array or fiber-coupled laser array, in which the stretch, length and/or position of the fibers is chosen facilitate the in-phase oscillation of the lasers in ... | 03/11/2008 |
| 7333189 | Spectroscopic diagnostic methods and system The present invention provides systems and methods for the determination of the physical characteristics of a structured superficial layer of material using light scattering spectroscopy. The light scattering spectroscopy system comprises optical probes that can be ... | 02/19/2008 |
| 7327768 | Wavelength conversion module A wavelength conversion module according to the present invention includes an external resonator, a semiconductor laser module and a wavelength conversion device for converting a wavelength of light output from the semiconductor laser module into a shorter wavelengt... | 02/05/2008 |
| 7324567 | Modulation frequency tunable optical oscillator Provided is a millimeter-wave band frequency optical oscillator that can be used as an oscillation frequency signal source for a millimeter-wave forwarded to wireless subscribers from a base station of a millimeter-wave wireless subscriber communication system for a... | 01/29/2008 |
| 7317574 | Long-distance quantum communication Apparatus and methods for high fidelity quantum communication over long communication channels even in the presence of significant loss in the channels are disclosed. The invention employs laser manipulation of quantum correlated atomic ensembles using linear optic ... | 01/08/2008 |
| 7295580 | Numerical aperture optimization using doped cladding layers A method and apparatus for optimizing the numerical aperture (NA) of a laser active core. The laser active core comprises at least a first and second cladding pair. The first and second cladding pair have at least one NA value. At least one of the first and second c... | 11/13/2007 |
| 7288086 | High-efficiency, side-pumped diode laser system An apparatus for cutting or ablating hard tissue, includes an optical cavity; a gain medium disposed within the optical cavity; a diode light pump disposed within the optical cavity and optically aligned to light pump the gain medium to generate laser light. The gen... | 10/30/2007 |
| 7286241 | System and method for high-speed laser detection of ultrasound A system and method for laser light amplification provides amplification of a laser light beam emitted from a laser light source as low-amplification seed laser light signal. The low-amplification seed laser light signal is transmitted to an amplification component.... | 10/23/2007 |
| 7274717 | Dark fiber laser array coupler A multiple-fiber, stretched, fused and cleaved coupler designed to act as an output window to a fiber laser array or fiber-coupled laser array, in which the stretch, length and/or position of the fibers is chosen facilitate the in-phase oscillation of the lasers in ... | 09/25/2007 |
| 7274723 | Method for amplifying a solid-state laser Conventionally, a laser beam is amplified by making a single pass through an amplifier but the laser beam emitted from the oscillator generally has low energy, so the energy stored in the amplifier cannot be fully extracted and only low laser output power and overal... | 09/25/2007 |
| 7256931 | Optical amplifying device In an optical amplifying device, an optical beam passes multiple times through a grazing-incidence bounce amplifier, accessing different parts (G1,G2) of the gain region on each transit. This provides improved characteristics in beam quality, with high... | 08/14/2007 |
| 7242026 | Semiconductor light-emitting device A semiconductor light-emitting device includes a semiconductor light-emitting thin film, the thickness h of which satisfies the following conditional equation: 0.9 × ( ... | 07/10/2007 |
| 7233607 | Pulsed light sources A source of pulses of coherent radiation at a wavelength of approximately 1 μm, comprises a pump source for producing pump light; a laser cavity comprising an Yb3+-doped gain medium arranged to receive the pump light, the laser cavity being modelocked to... | 06/19/2007 |
| 7233611 | Diode-pumped solid-state laser device and manufacturing method of the same A conventional method for a solid-state laser device that obtains a laser beam output of a high quality at a high output using a laser diode as a pumping light source has a problem that the costs are increased and the fabrication becomes complicated due to an increa... | 06/19/2007 |
| 7203214 | Off-peak optical pumping of yttrium orthovanadate A laser includes an Nd:YVO4 crystal end-pumped with diode-laser light having a wavelength at which the absorption coefficient for Nd:YVO4 is less than about 0.35 (35%) of the absorption coefficient at 808 nm. ... | 04/10/2007 |
| 7200161 | Side-pumped solid-state disk laser for high-average power A solid state laser module for amplification of laser radiation. The module includes a laser gain medium having a pair of generally parallel surfaces that form a disc-like shape, that receive and transmit laser radiation. At least one perimetral optical medium is di... | 04/03/2007 |
| 7193701 | Gray optical standard A system for providing and using a gray optical standard is disclosed, the standard generally comprising a housing having a cavity and an at least partially transparent portion adjacent to the cavity for receiving the radiation emitted radiation by an optical instru... | 03/20/2007 |
| 7173950 | Low-noise high-power SHG laser system A second harmonic generation laser system comprising: a non-linear frequency converting medium; and an external cavity pump laser that produces optical energy at a single mode and at a single frequency and that is disposed to provide the optical energy to the non-li... | 02/06/2007 |
| 7172588 | Laser device A dental laser arrangement switchable between different modes of operation, the arrangement including a laser device operable as a laser oscillator and as a laser amplifier. The laser device includes a laser resonator having a pump unit and an active modelocker as w... | 02/06/2007 |
| 7170919 | Diode-pumped solid-state laser gain module A laser gain device (10) holds a laser slab (60) which is pumped by pump energy from at least one diode array assembly (24). An angle at which pump energy from the diode array assembly (24) impinges the laser slab (60) is adjustabl... | 01/30/2007 |
| 7161966 | Side-pumped fiber laser An optical fiber includes a radial axis, a longitudinal axis, a first window surface adapted for receiving pump radiation and transmitting the pump radiation into the optical fiber, a second surface adapted for totally internally reflecting pump radiation received w... | 01/09/2007 |
| 7161968 | Laser apparatus In a solid state, optically end-pumped laser, the laser gain medium has a tapered diameter to minimize the maximum path length of barrelling amplified stimulated emission (ASE), and a roughened surface region at one end to scatter barrelling ASE out of the gain medi... | 01/09/2007 |
| 7158546 | Composite laser rod, fabricating method thereof, and laser device therewith As a composite laser rod capable of satisfying the positional stability and output stability of a laser beam, a laser rod in which a laser active element is doped is intimately inserted into a hollow portion of a non-doped ceramic pipe that has a crystal structure t... | 01/02/2007 |
| 7154929 | Micro-cavity light emitting device and method for making same A device for emission of light is made including an emitting structure including an active part and a micro-cavity, delimited by mirrors and containing the active part, and a laser diode designed for pumping the emitting structure. The emitting structure is fixed to... | 12/26/2006 |
| 7136408 | InGaN diode-laser pumped II-VI semiconductor lasers A semiconductor laser includes a multilayer semiconductor laser heterostructure including at least one active layer of a II-VI semiconductor material and is optically pumped by one or more indium gallium nitride (InGaN) diode-lasers. Group II elements in the II-VI s... | 11/14/2006 |
| 7126974 | Ring geometry diode laser arrays and methods Systems, configurations and methods of using laser diodes in ring-shaped arrays placed a distance away from thin disk solid-state laser gain media, which provide uniformly absorbed pump power distribution with high absorption efficiency. This results in major improv... | 10/24/2006 |
| 7080529 | Method for making large diameter optical waveguide having Bragg grating and being configured for reducing the bulk modulus of compressibility thereof The present invention provides a method for making a multicore large diameter optical waveguide having a cross-section of at least about 0.3 millimeters, two or more inner cores, a cladding surrounding the two or more inner cores, and one or more side holes for redu... | 07/25/2006 |
| 7058102 | High-power solid-state laser A device for producing laser radiation, the device comprising: an elongate sample of a quasi-three-level laser material; a source of pumping radiation; and a concentrator configured such that at least some of the pumping radiation emitted by the source of pumping ra... | 06/06/2006 |
| 7046712 | Laser resistant to internal ir-induced damage Co-doping the gain medium of a diode-pumped infrared laser to make the laser resistant to long-term degradation from high-intensity internal infrared radiation is disclosed. Co-doping the gain medium with ions such as Cr3+ and Ce3+ that make th... | 05/16/2006 |
| 7040782 | Off-axis parabolic reflector A lamp (8, 108, 208) includes a reflector (10, 110, 210) with a plurality of off-axis reflector segments (20, 22, 24, 120a, 120b, 220). Each off-axis reflector segment has a focus at a perimeter (12, 112, 112 | 05/09/2006 |
| 7030996 | Measurement of complex surface shapes using a spherical wavefront Conical surfaces (and other complex surface shapes) can be interferometrically characterized using a locally spherical measurement wavefront (e.g., spherical and aspherical wavefronts). In particular, complex surface shapes are measured relative to a measurement poi... | 04/18/2006 |
| 6996137 | Solid-state devices with radial dopant valence profile A solid state, laser light control device (20, 30) and material (10), and methods of producing same. The device (20, 30) and material (10) consist essentially of a host material (14) which contains: a dopant species (16) at ... | 02/07/2006 |
