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| Number | Title | Issue Date |
| 8165182 | Solid-state laser In order to improve a solid-state laser, in particular a solid-state disc laser, comprising a resonator (40) that defines a resonator radiation field (30) and at least one solid-state disc (12) with the resonator radiation field (30) pass... | 04/24/2012 |
| 8121171 | Optical systems for laser arrays Surface emitting laser arrays with intra-cavity harmonic generation are coupled to an optical system that extracts harmonic light in both directions from an intra-cavity nonlinear optical material in such a way that the focusing properties of the light beams are mat... | 02/21/2012 |
| 8050307 | 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 ... | 11/01/2011 |
| 7970041 | Semiconductor laser apparatus A wavelength variable laser smaller in size than the conventional one can be achieved by arranging a gain chip, an etalon filter and a fifth reflective mirror on an AlN submount and longitudinally integrating the gain chip in which a 45° mirror and a lens are integ... | 06/28/2011 |
| 7936804 | Solid state laser and wavelength conversion laser Two convex lenses (61, 62), each of which has a focal length “f”, and a 90 degree polarization rotator (5) are interposed between solid-state laser elements (21, 22) of a symmetrical resonator having the two solid-state laser elements (21... | 05/03/2011 |
| 7920617 | Method and device for coherent addition of semiconductor laser emission A method and device for coherent addition of semiconductor laser emission, in particular for use in telecommunications. Individual emitters are coupled, each emitter to some extent experiencing some of the emission of all the others. Rather than all emitting indepen... | 04/05/2011 |
| 7873094 | 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 ... | 01/18/2011 |
| 7830945 | Laser apparatus in which laser diodes and corresponding collimator lenses are fixed to block, and fiber module in which laser apparatus is coupled to optical fiber A laser apparatus includes: a plurality of laser diodes respectively having light-emission points and being fixed to a block so that the light-emission points are aligned along a direction; and a collimator-lens array integrally formed to contain a plurality of coll... | 11/09/2010 |
| 7688877 | Laser machining apparatus Provided is a laser machining apparatus. The laser machining apparatus includes: a laser oscillator emitting laser beams; a first dividing means on which the laser beams emitted from the laser oscillator are incident to be selectively divided so that the incident la... | 03/30/2010 |
| 7653115 | Semiconductor laser device and solid-state laser device using the same A semiconductor laser device with the energy density increased at the focal point and a LD pumped solid-state laser device configured of the particular semiconductor laser device are provided. A stack array laser element for radiating a two-dimensional array of lase... | 01/26/2010 |
| 7620092 | Multimode MOPA with thermal lens compensation A master oscillator power amplifier (MOPA) laser system includes a symmetrical master oscillator and an amplifier each having an optically pumped solid-state gain rod. An optical relay is located between the laser resonator and the amplifier gain rod. When the oscil... | 11/17/2009 |
| 7577179 | Laser irradiation apparatus The laser radiation apparatus is provided having substantial light emission intensity although the laser radiation apparatus is miniaturized. A solid state laser rod; the excitation light source formed such that the excitation light source surrounds an emission axis... | 08/18/2009 |
| 7535949 | VCSEL with integrated lens A wafer-level device fabrication process forms standing structures around emitting areas of multiple VCSELs. The standing structures can be shaped to hold ball lenses or other optical elements for respective VCSELs or can include platforms on which optical elements ... | 05/19/2009 |
| 7508859 | Optical scanning apparatus To provide an optical scanning apparatus which is strong against an external stress while suppressing an increase in the number of parts, an inserting portion 6 into which a laser light source unit 1 can be inserted is provided for a frame member 5.... | 03/24/2009 |
| 7492806 | 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 ... | 02/17/2009 |
| 7471712 | Laser irradiating method and device for same Because a focal distance of a condenser lens is changed due to a change in temperature, when irradiation of a laser beam is restarted after the irradiation has stopped, it takes a long time to restore a temperature of the cooled lens to a given temperature, and the ... | 12/30/2008 |
| 7457342 | Laser device A laser device applied to a light source of laser scanning units (LSU) including a laser diode disposed on an accommodation hole of a flange. A collimator lens is arranged on one end of an inner tube part of a holder while the other end of the inner tube part faces ... | 11/25/2008 |
| 7436863 | Fiber laser beam processing apparatus A fiber laser beam processing apparatus is configured by a fiber laser oscillator, a laser power source unit, a laser beam injecting unit, a fiber transmission system, a laser beam irradiating unit, a processing table, etc. A portion of a fiber laser beam oscillated... | 10/14/2008 |
| 7436875 | Laser module having controlled optical power density at exposed surfaces A laser module includes: one or more semiconductor laser elements which emit one or more laser beams; an optical fiber which has a light-entrance end face; and an optical condensing system which is constituted by one or more optical components and makes the one or m... | 10/14/2008 |
| 7430225 | Fiber laser beam processing apparatus The fiber laser beam processing apparatus includes a fiber laser oscillator, a laser power source unit, a laser injecting unit, a fiber transmission system, a laser beam irradiating unit, a processing table, etc. The fiber laser oscillator includes an optical fiber ... | 09/30/2008 |
| 7428252 | Unstable monoblock laser cavity with integrated beam expander A monoblock laser cavity includes a plurality of discrete optical components disposed serially on a substrate and sharing a common optical axis. The optical components include a laser rod of gain material, a Q-switch, an OPO crystal, an output coupler, and a positiv... | 09/23/2008 |
| 7415058 | Ultra-high-Q surface-tension-induced monolithically integrated on-chip resonator and associated devices A resonator structure includes a substrate and a cladding layer formed on the substrate. A plurality of lens-shaped optical structures is formed on the cladding layer. The lens-shaped optical structures comprise chacolgenide glass being exposed to a reflow process s... | 08/19/2008 |
| 7409122 | End face structure of optical fiber, optical fiber laser, and laser processing apparatus An end face structure of an optical fiber includes a coreless fiber fused to an emitting end face of the fiber optical fiber and a coating material disposed around at least the coreless fiber, a refractive index of the coating material being higher than a refractive... | 08/05/2008 |
| 7398404 | System and related control device and method for controlling power supply according to a power status A computer system includes a main power, a backup power, an input/output (I/O) board, a main board, a computer host, and controls signal transmission and signal detection with a control device. The control device controls the main power and the backup power accordin... | 07/08/2008 |
| 7397829 | Vertical external cavity surface emitting laser Provided is a VECSEL capable of achieving an excellent efficiency of a SHG crystal and being manufactured in a compact size. The VECSEL includes a laser chip, an external mirror, an SHG crystal, a lens element, and a wavelength selective mirror. The laser chip gener... | 07/08/2008 |
| 7391796 | Ultra-low heat laser An ultra-low heat laser that does not rely on florescence cooling. Generally, the inventive laser includes a pump source operable at a pump frequency and a gain medium disposed to receive energy from the source and lase at a frequency close to the pump frequency. In... | 06/24/2008 |
| 7362784 | Laser irradiation method, laser irradiation apparatus, and semiconductor device An object of the present invention is obtaining a semiconductor film with uniform characteristics by improving irradiation variations of the semiconductor film. The irradiation variations are generated due to scanning while irradiating with a linear laser beam of th... | 04/22/2008 |
| 7361978 | Laser diode packaging A laser diode package includes a heat sink, a laser diode, and an electrically nonconductive (i.e. insulative) substrate. The laser diode has an emitting surface and a reflective surface opposing the emitting surface. The laser diode further has first and second sid... | 04/22/2008 |
| 7359411 | Fiber laser oscillator and fiber laser processing apparatus An end cap is formed as a substantially cylindrical body having substantially the same diameter as an external diameter of a retaining unit of an oscillation fiber; a base end surface is integrally fusion-welded or fusion-bonded to one end surface of the oscillation... | 04/15/2008 |
| 7359638 | Optical source generator for wavelength division multiplexing optical communication systems An optical source generator for wavelength-division-multiplexing optical communication systems includes a wavelength-division multiplexer/demultiplexer, optical amplifiers, and wavelength-dependent reflectors such as optical fiber-Bragg gratings or wavelength-indepe... | 04/15/2008 |
| 7352787 | Vertical cavity surface emitting laser diode and process for producing the same A vertical cavity surface emitting laser diode includes a lower semiconductor reflector, an active region, an upper semiconductor reflector constituting a resonator with the lower semiconductor reflector, a metallic part being formed on the upper semiconductor refle... | 04/01/2008 |
| 7352789 | Laser light irradiation apparatus and laser light irradiation method Laser light is emitted from a laser oscillator, and the laser light is made to enter a beam expander optical system including a concave lens through a correction lens. The laser oscillator, the correction lens and the concave lens are disposed so that, when an emiss... | 04/01/2008 |
| RE40173 | High efficiency, high power direct diode laser systems and methods therefor A direct diode laser system includes N laser head assemblies (LHAs) generating N output beams, N optical fibers receiving respective N output beams and generating N received output beams, and a torch head recollimating and focusing the N received output beams onto a... | 03/25/2008 |
| 7342600 | Image forming device An image forming device includes an image carrier, a charging unit, an exposing device, a developing device, a control device and a pair of position adjusting devices. Each of the position adjusting devices is respectively provided at a leading edge and a trailing e... | 03/11/2008 |
| 7339975 | Apparatus for synthesizing laser beams (Problem to be solved) To provide a laser beam synthesizing apparatus which is small in size and high in output power. (Means for solving the problem) A convergent angle transforming optical system 30 is disposed further upstream of the upstream-most p... | 03/04/2008 |
| 7336433 | Focusable laser collimator A laser collimator includes an optical lens having an optical axis; a sliding lens holder for housing the lens having a longitudinal opening parallel to the optical axis; a stationary lens holder ring for fitting to the front of the sliding lens holder and having a ... | 02/26/2008 |
| 7336690 | Solid-state laser system A simple and high-reliability constitution provides a solid-state laser system that allows a high-output, long-pulse-width laser beam to be obtained. A solid-state laser system that includes a solid-state laser medium 1, a light source 2 for pum... | 02/26/2008 |
| 7333526 | Coarse spectrometer with a grating A quasi-monochromatic light beam carrier for a particular telecommunication channel is likely to experience drift because of age, temperature, or other factors, and may cause the centroid wavelength of the carrier to shift. Temperature adjustments by wavelength lock... | 02/19/2008 |
| 7327774 | Self-forming microlenses for VCSEL arrays A Vertical Cavity Surface Emitting Laser (VCSEL) assembly including a VCSEL structure having a light-emitting region located on its surface, a relatively wettable region of a surface modifier coating formed over the light emitting region, and a microlens formed on t... | 02/05/2008 |
| 7324575 | Lens with reflective surface A lens having a reflective surface, and systems that use such a lens. The lens includes a transmissive part for passing a portion of an incident light beam, and a reflective part for reflecting a portion of the incident light beam, and the reflective part is prefera... | 01/29/2008 |
