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| Application No. | Application Title | Issue Date |
| 20110122897 | ACOUSTO-OPTICALLY Q-SWITCHED CO2 LASER A pulsed CO2 laser is Q-switched by an intracavity acousto-optic (AO) Q-switch including an AO material transparent at a fundamental wavelength of the laser. In one example the AO material is germanium.... | 05/26/2011 |
| 20100303105 | GENERATING PULSE TRAINS IN Q-SWITCHED LASERS The invention relates to methods and systems for generating a pulse train having several individual pulses, wherein the individual pulses have a desired pulse characteristic, by means of a Q-switched solid state laser system, which includes, e.g., a modulator for influe... | 12/02/2010 |
| 20100284429 | PULSED LIGHT GENERATOR AND PULSED FIBER LASER A pulsed light generator of the invention includes: an excitation light source; a fiber grating into which excitation light from the excitation light source enters; a rare-earth doped optical fiber optically coupled with the fiber grating, in which a rare-earth element ... | 11/11/2010 |
| 20100215064 | Low loss crystal as a large aperture AO deflector An acousto-optic deflector includes a body of material through which a laser beam to be modulated passes. The material has an acoustic attenuation in the range of 0.15 to 1.0 dB/μs-GHz2 and operates in a UV range of about 150 to 400 nm. A transducer is bonde... | 08/26/2010 |
| 20100080251 | LASER AND METHOD FOR GENERATING PULSED LASER RADIATION A laser for generating pulsed laser radiation is provided, having a resonator, a laser-active medium, which is situated in the resonator, a Q-switch, which is situated in the resonator, and which can be put into a first state and a second state to set the resonator qual... | 04/01/2010 |
| 20100002732 | Pumped Laser System Using Feedback to Pump Means A laser system according to the invention comprises pump generating means (x02, x03) for generating at least a first and a second, preferably focused, pump beam, and lasing means (x06, x07) for emitting radiation by being appropriately pumped... | 01/07/2010 |
| 20090232167 | ACOUSTO-OPTICALLY Q-SWITCHED CO2 LASER A pulsed CO2 laser is Q-switched by an intracavity acousto-optic (AO) Q-switch including an AO material transparent at a fundamental wavelength of the laser. In one example the AO material is germanium.... | 09/17/2009 |
| 20090147344 | INTEGRATED HIGH EFFICIENCY MULTI-STAGE ACOUSTO-OPTIC MODULATOR An acousto-optic modulator for a Q-switch (300) for a laser includes a monolithic acousto-optic (a-o) medium (311), a series of at least two acoustic transducers (321, 322), bonded spaced apart on the a-o medium, which emit first and second columnar... | 06/11/2009 |
| 20090122814 | CORROSION RESISTANT COOLED ACOUSTO-OPTIC DEVICES A corrosion resistant fluid cooled acousto-optic (AO) device includes an AO interaction medium and a piezoelectric transducer affixed to the AO medium. A cooling arrangement is thermally coupled to the AO medium and includes a first material, and at least one cooling co... | 05/14/2009 |
| 20090003392 | Multiple pulsed-laser system for silicon crystallization Multiple laser resonators share a common acousto-optic Q-switch. The Q-switch is driven by a radio-frequency (RF) transducer that causes an acoustic wave to propagate in the Q-switch. Turning off the RF transducer discontinues propagation of the acoustic wave and causes... | 01/01/2009 |
| 20080253407 | LASER AND METHOD FOR GENERATING PULSED LASER RADIATION A laser for generating pulsed laser radiation is provided. The laser includes a resonator, a laser-active medium arranged in the resonator, and an acousto-optic modulator arranged in the resonator. The modulator can be put in a first and a second state so as to set the ... | 10/16/2008 |
| 20080037597 | Laser Apparatus In a first embodiment, the invention makes use of a Neodymium doped YAG (Nd: YAG) gain medium placed in an optical resonant cavity formed by two mirrors. Power extraction is maximized for a specific laser cavity. In particular the concave curvature on the rod ends contr... | 02/14/2008 |
| 20070098025 | HIGH-REPETITION-RATE FEMTOSECOND REGENERATIVE AMPLIFICATION SYSTEM Provided is a high-repetition-rate femtosecond regenerative amplification system. The regenerative amplification system includes: a laser oscillator emitting pulses; a stretcher stretching the pulses with negative dispersion; a regenerative amplifier amplifying the puls... | 05/03/2007 |
| 20050276286 | Pulsed laser apparatus and method A laser apparatus for generating optical pulses is disclosed, said laser apparatus has a reflecting gain element preferably including a fiber gain medium. The reflecting gain element is coupled to a controllable reflecting/transmitting module having a reflecting state a... | 12/15/2005 |
| 20050271095 | Pulse control in laser systems A pulsed laser system includes a laser pump, a laser rod, a reflector interposed between the laser pump and the laser rod, through which energy from the laser pump enters the laser rod, an output reflector through which energy is emitted from the laser rod, a switch int... | 12/08/2005 |
| 20050175045 | Laser tuning by spectrally dependent spatial filtering A tunable laser and laser tuning method, based on the interaction of a spectrally dependent beam distortion and a spatial filter within a laser cavity. One embodiment of this laser is an external cavity semiconductor laser in which broad tunability is obtained by the in... | 08/11/2005 |
| 20050141573 | Method and apparatus for controllably modulating a laser in a laser projection display A laser projection device suitable for displaying full color images is disclosed. The LPD includes a variety of techniques for modulating laser beams produced by one or more lasers with image data to controllably produce the image using a modified raster scan. ... | 06/30/2005 |
| 20050105568 | Pulse control in laser systems A pulsed laser system includes a laser pump, a laser rod, a reflector interposed between the laser pump and the laser rod, through which energy from the laser pump enters the laser rod, an output reflector through which energy is emitted from the laser rod, a switch int... | 05/19/2005 |
| 20050018716 | Method and apparatus for providing multiple independently controlable beams from a single laser output beam A laser output beam is directed into an acousto-optic cell. The acousto-optic cell is driven by RF voltages at a plurality of different frequencies. Portions of the laser output beam are diffracted by the acousto-optic cell at a plurality of different angles correspondi... | 01/27/2005 |
