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| Number | Title | Issue Date |
| 7672343 | System and method for high power laser processing A high power laser processing system is disclosed that includes a laser source and at least one optical element. The laser source provides a high power laser illumination of a first wavelength. The optical element includes a substrate that is substantially transpare... | 03/02/2010 |
| 7411989 | Mechanically Q-switched COlaser A CO2 laser has a resonator mirror that oscillates about an axis perpendicular to the resonator axis through an angular range of oscillation sufficient that the resonator is only able to deliver radiation for a fraction of an oscillation period of the mir... | 08/12/2008 |
| 7366212 | Alterable frequency coherent light generator An alterable frequency coherent light generator for the generation of highly energy efficient coherent light, by means of a power supply connected to a four-lead capacitor, which is connected to a variable resistive device in series with a vacuumed bulb. The direct ... | 04/29/2008 |
| 7366221 | Laser apparatus and method of driving diffraction grating A laser apparatus is disclosed. The laser apparatus has a diffraction grating that receives laser light from a semiconductor laser, emits first order diffracted light having a predetermined wavelength to the semiconductor laser, and reflects zero-th order light, a r... | 04/29/2008 |
| 7352783 | Tunable fiber laser light source A loop is formed with an optical fiber by providing a gain medium having a gain with respect to an oscillation wavelength. Light retrieved by the optical circulator 13 from the optical fiber loop is enlarged and projected to a mirror 23. A diffraction ... | 04/01/2008 |
| 7321607 | External optics and chamber support system A gas discharge laser and method of operating same is disclosed which may comprise a gas discharge laser chamber support structure comprising a first support arm attached to a mounting table; a gas discharge laser chamber slideably engaging the first support arm; an... | 01/22/2008 |
| 7317179 | Systems and methods to shape laser light as a homogeneous line beam for interaction with a film deposited on a substrate Systems and methods are disclosed for shaping and homogenizing a laser beam for interaction with a film. The shaping and homogenizing system may include a lens array and a lens that is positioned to receive laser light from the lens array and produce a respective el... | 01/08/2008 |
| 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 |
| 7277188 | Systems and methods for implementing an interaction between a laser shaped as a line beam and a film deposited on a substrate Systems and methods are disclosed for focusing a beam for an interaction with a film deposited on a substrate wherein the focused beam defines a short axis and a long axis. In one aspect, the system may include a detecting system to analyze light reflected from the ... | 10/02/2007 |
| 7260131 | Symmetrization device and laser diode system provided with the same A symmetrization device and laser diode system using such a device is shown. The device has adjacent lens components transforming beamlets from a laser diode array. Each lens component has input and output surfaces, each having a profile in the propagation direction... | 08/21/2007 |
| 7242697 | Wavelength selection device, wavelength selection laser, and tunable laser A wavelength selection filter, a wavelenth selection laser, and a tunable laser for suppressing adverse effects of non-selected light when selected light is obtained by the wavelength selection filter. A linear polarizer is arranged on a side of the wavelength selec... | 07/10/2007 |
| 7233442 | Method and apparatus for spectral-beam combining of high-power fiber lasers Apparatus and method for spectral-beam combining light from a plurality of high-power fiber lasers that, in some embodiments, use two substantially identical diffraction gratings in a parallel, mutually compensating configuration to combine a plurality of separate p... | 06/19/2007 |
| 7218651 | Arrangement for the generation of a pulsed laser beam of high average output The invention is directed to an arrangement for generating a pulsed laser beam with high average output, in particular for generating a hot plasma which emits extreme ultraviolet (EUV) radiation. It is the object of the invention to find a novel possibility for gene... | 05/15/2007 |
| 7212555 | Methods and devices for monitoring the wavelength and power of a laser A wavelength locker. The wavelength locker can be mounted within an optical transceiver on a submount with the laser diode. The wavelength locker utilizes light emitted by the back facet of the laser to monitor the wavelength and power of the laser. The light is sep... | 05/01/2007 |
| 7199924 | Apparatus and method for spectral-beam combining of high-power fiber lasers Apparatus and method for spectral-beam combining light from a plurality of high-power fiber lasers that, in some embodiments, use two substantially identical diffraction gratings in a parallel, mutually compensating configuration to combine a plurality of separate p... | 04/03/2007 |
| 7190707 | Gas discharge laser light source beam delivery unit A beam delivery unit and method of delivering a laser beam from a laser light source for excimer or molecular fluorine gas discharge laser systems in the DUV and smaller wavelengths is disclosed, which may comprise: a beam delivery enclosure defining an output laser... | 03/13/2007 |
| 7174647 | Laser line projector with spherically rotatable support and level/plumb indicators for the support A spherically rotatable support for a light image projector has level and/or plumb indicators for leveling or plumbing a central reference frame of its spherical rotation. A projected light image, such as a laser line segment of relatively short length may be succes... | 02/13/2007 |
| 7123632 | Laser beam source In a laser beam source for projecting laser pulses, having a laser-active medium (10), a controllable pump device (11) for exciting the medium (10), a resonator (13) for inducing oscillation of the medium (10), which resonator has ... | 10/17/2006 |
| 7114858 | Laser based ignition system for natural gas reciprocating engines, laser based ignition system having capability to detect successful ignition event; and distributor system for use with high-powered pulsed lasers A laser based ignition system for stationary natural gas engines, a distributor system for use with high-powered lasers, and a method of determining a successful ignition event in a laser-based ignition system are provided. The laser based ignition (LBI) system for ... | 10/03/2006 |
| 7095762 | 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... | 08/22/2006 |
| 7071444 | High performance system and method for capturing and absorbing radiation A device for capturing radiation includes multi-axis, multiple chambers with two dimensional geometry. A first chamber has a first axis and is configured to receive a beam of radiation and absorb a portion of the beam of radiation. A second chamber has a second axis... | 07/04/2006 |
| 7054341 | Methods and systems for laser processing a workpiece and methods and apparatus for controlling beam quality therein Laser processing methods, systems and apparatus having a super-modulating power supply (6) or pumping subsystem (5) and high beam quality (i.e., brightness) are disclosed. The methods, systems and apparatus have significant benefits, improved operation... | 05/30/2006 |
| 7010005 | Minimizing high power laser thermal blooming in the atmosphere The output of a high power pulsed or CW laser (22), which may be mounted on a vehicle (17) is reflected from a convex mirror (27) to a concave mirror (29) that is displaced radially outward on a rotating structure (14) from the con... | 03/07/2006 |
| 6980572 | Wavelength selectable light source A wavelength selectable light source is comprised of a two-dimensional (2-D) array of variable wavelength vertical-cavity surface-emitting lasers (VCSELs), wherein light beams emitted from the VCSELs are coupled into an output optical fiber. The light beams emitted ... | 12/27/2005 |
| 6963595 | Automatic gas control system for a gas discharge laser An automatic F2 laser gas control, for a modular high repetition rate ultraviolet gas discharge laser. The laser gas control includes techniques, monitors, and processor for monitoring the F2 consumption rates through the operating life of the ... | 11/08/2005 |
| 6952435 | Speckle free laser probe beam The present invention contemplates a method and apparatus to generate a laser probe beam free of speckles. The present invention employs a holographic phase plate inserted in a laser beam path to modulate the relative phase across the beam. The holographic phase pla... | 10/04/2005 |
| 6944193 | Wavelength tuning mechanism A Littman configuration type wavelength tuning mechanism comprising an LD block (1), a grating (3) and a wavelength adjusting mirror (4). In the wavelength tuning mechanism, turning means realizing a Littman configuration of said grating with re... | 09/13/2005 |
| 6944195 | 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... | 09/13/2005 |
| 6937626 | Multiple wavelength pulsed source A multiple wavelength laser apparatus is taught to select wavelengths for simultaneous generation of short pulses at multiple wavelengths having application in wavelength-division-multiplexed communications systems, photonic microwave systems, and pump-probe applica... | 08/30/2005 |
| 6914916 | Tunable controlled laser array A semiconductor laser capable of emitting in any one of standard communication wavelengths is of great practical value. To this end, a single semiconductor chip is fabricated on which many different distributed feedback (DFB) lasers are integrated. The device parame... | 07/05/2005 |
| 6868098 | Dual-wavelength passive self-modulated mode-locked semiconductor laser diode Method of generating laser pulses using a semiconductor laser diode as a lasing amplification medium of an extended laser cavity are presented. Passive self-modulated mode-locked operation of the semiconductor laser diode is achieved by providing an above lasing thr... | 03/15/2005 |
| 6846080 | Image display apparatus An image display apparatus includes a plurality of light emission sources, a drive circuit for pulse-driving the plurality of light emission sources in order in a predetermined period, a moving reflecting mirror for swinging in order in an incidence direction of lig... | 01/25/2005 |
| 6785302 | Optical system in the ray path of a confocal fluorescence microscope The invention relates to an optical system in the ray path of a confocal fluorescence microscope, comprising at least one laser light source (1, 2), a device positioned in the illuminating/detecting beam (3, 4, 5) for separating the exciting light (... | 08/31/2004 |
| 6775315 | Apparatus and method of directing a laser beam to a thermally managed beam dump in a laser system An optical bench for processing laser light in a laser system, including an optical bench housing, a beam dump mounted to the optical bench housing so as to be in optical communication therewith, steering optics mounted within the optical bench housing for directing... | 08/10/2004 |
| 6731661 | Tuning mechanism for a tunable external-cavity laser Systems for tuning external-cavity lasers are provided. A representative system includes a motor and first and second opposing surfaces that are displaceable by the motor. The opposing surfaces operatively engage a support at a drive segment and rotate the drive seg... | 05/04/2004 |
| 6693926 | MEMS-based selectable laser source A MEMS-based selectable laser output optical device (10) includes a laser source (12) having a laser output 14. A MEMS switch (16) is optically coupled to the laser source (12) for selectively coupling the laser output (14) from the laser source (12) in o... | 02/17/2004 |
| 6535535 | 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... | 03/18/2003 |
| 6493364 | Beam shutter for excimer laser A beam shutter apparatus designed to handle high powered UV radiation is disclosed. The shutter includes a high reflectivity mirror mounted on a plate which can be rotated between a first position where the beam is reflected and redirected to a tool such ... | 12/10/2002 |
| 6081544 | Flexure mounting of optical resonator for precision lasers The laser beam produced by the improved precision laser maintains an axial stability of less than 20 micro-radians in the presence of ambient temperature changes and shock and vibration of as much as 100 g's, achieving a new milestone in stability. In the... | 06/27/2000 |
| 6058132 | Laser beam machining apparatus using a plurality of galvanoscanners In an optical path of a laser beam, a reflection mirror (11) is located to divide the laser beam into two split laser beams. By the use of the split laser beams, workpieces (17a, 17b) are simultaneously processed.... | 05/02/2000 |
