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Inventor:
Yin; Yusong
Address:
Stonybrook, NY
No. of patents:
17
Patents:












Patent Number Title Of Patent Date Issued
7869471 Tunable OPO laser January 11, 2011
A tunable OPO laser is provided. The laser includes an OPO cavity containing an OPO nonlinear crystal for generating a plurality of preselected wavelength beams of different wavelengths. The OPO cavity is formed between a first OPO reflective surface and a second OPO reflective surfa
7346092 Diode side pumped high pulse energy Nd:YLF lasers March 18, 2008
According to the invention, a diode side pumped laser is provided. The laser has an optical cavity formed between a first and a second reflective surface. A Nd:YLF lasing medium is located within the cavity along its optical axis. The Nd:YLF lasing medium can desirably be a single Nd
7082149 High power diode side pumped solid state laser July 25, 2006
A high pulse energy, side pumped laser is provided. The laser has an optical cavity formed between a first and a second reflective surface. A lasing medium is located within the cavity along its optical axis. A plurality of diode bars are provided in optical communication with the la
7079557 Intracavity OPO laser July 18, 2006
A laser having an optical parametric oscillator for providing a preselected wavelength beam is provided. A nonlinear crystal cut for phase matching condition preferably cut for noncritical phase matching conditions for the fundamental beam wavelength and the preselected wavelength be
6999483 External 3rd, 4th and 5th harmonic laser February 14, 2006
The invention relates to an improved harmonic laser which provides an externally generated harmonic beam. According to the invention, a third harmonic laser or higher harmonic laser is provided. The laser includes a first reflector and a second reflector for fundamental beam, forming a
6980574 Short pulse separation laser December 27, 2005
According to the invention, a laser and a method of operating a laser which can produce multiple pulses from a single laser head is provided. A lasing medium is pumped by pumping source such as laser diodes, lamp and such. A modulator located in the cavity is turned on to induce a loss i
6961355 Variable power pulsed secondary beam laser November 1, 2005
Lasers are provided to deliver a wide variety of wavelengths at variable pulse energy. A laser cavity is formed between a first and second reflective surface. A lasing medium is located within cavity which lases at a preselected fundamental frequency. One or more nonlinear crystals are
6762405 Matrix assisted laser ionization system July 13, 2004
A matrix assisted laser desorption and ionization system is provided. The system includes a mass spectrometer for analyzing at least one sample. The mass spectrometer includes a sample receiving chamber for receiving a sample under a vacuum. A UV laser is provided for producing a UV beam
6584134 High power laser June 24, 2003
According to the invention, a high power diode pumped solid state laser is provided. The laser includes a first and second reflective surfaces which form an optical resonator cavity. A laser medium, particularly a Nd doped laser medium for example: a Nd:YAG, a Nd:YLF, or a Nd:YVO.sub.4 c
6366596 High power laser April 2, 2002
According to the invention, a high power diode pumped solid state laser is provided. The laser includes a first and second reflective surfaces which form an optical resonator cavity. A laser medium, particularly a Nd doped laser medium for example: a Nd:YAG, a Nd:YLF, or a Nd:YVO.sub.4 c
6356578 Attenuator March 12, 2002
According to the invention, a variable power laser beam delivery apparatus is provided. The apparatus includes a generator for delivering a preselected wavelength beam preferably an ultraviolet (UV) beam along a beam path. A dichroic mirror, desirably two (2) or more preferably four
6327281 Laser with harmonic cavity December 4, 2001
According to the invention, a method and apparatus for generating an Nth harmonic frequency beam (N>2) is provided. A laser fundamental resonator cavity generates a preselected fundamental beam. The laser cavity comprises two fundamental beam reflective mirrors, which define the l
6246707 High repetition rate pulsed laser June 12, 2001
A pulsed laser preferably a tunable laser having a narrow band width is provided which has a high conversion efficiency at a high repetition rate. The laser includes a diffraction grating located in the laser's optical cavity. The optical cavity is defined by a mirror and diffraction gra
6108356 Intracavity optical parametric oscillators August 22, 2000
According to the invention, a method and an apparatus for producing a laser beam having a preselected output frequency which has a longer wavelength than does the fundamental beam of the lasing medium is provided. In one aspect of the invention a laser resonator cavity is formed between
6061370 Fourth harmonic generation apparatus May 9, 2000
A fourth harmonic frequency generating method and apparatus is provided. The system includes within the optical cavity an active laser medium, a second harmonic generator for generating second harmonic frequency of the fundamental frequency emitted by the laser. The fundamental beam is
6028620 Method and apparatus for affixing information on optical storage disks February 22, 2000
A method and apparatus for forming machine readable code on an optical information storage disk is provided. The code is formed by periodically pulsing a laser along a path and directing the laser pulse to a preselected point. The laser pulse is adjusted to a preselected spot length
5898717 Third harmonic generation apparatus April 27, 1999
Third harmonic generated from intra-cavity frequency tripled resonator is disclosed in which type II phase matching crystal is used as the tripler. Type I phase matching is used for second harmonic generation. The resonator efficiently converts the fundamental laser frequency to its










 
 
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