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Inventor:
Injeyan; Hagop
Address:
Glendale, CA
No. of patents:
23
Patents:












Patent Number Title Of Patent Date Issued
8049957 Scalable semiconductor waveguide amplifier November 1, 2011
One embodiment of the present method and apparatus encompasses an apparatus that may have: a predetermined length, the self-imaging semiconductor waveguide having first and second opposed sides; quantum wells disposed within the self-imaging semiconductor waveguide along the length o
7173956 Electrically controlled uniform or graded reflectivity electro-optic mirror February 6, 2007
An electrically controlled variable reflectance mirror that includes a Pockels cell which enables its retardation or birefringence to be controlled in order to vary the light outcoupled from a laser cavity. Since the retardation is a function of the voltage applied to the Pockels cel
7099356 Robust seeding technique for single mode laser oscillation August 29, 2006
A method is provided for seeding laser system (10) for single longitudinal mode oscillation. The method includes coupling laser system (10) to be seeded for single mode output to a seed laser radiation source (12). Next, the frequency capture range (44) and spacing (46) of the axial
6268956 End pumped zig-zag slab laser gain medium July 31, 2001
An optical amplifier (20, 100) includes an elongated slab (22, 102) of solid state lapsing material, such as a rare earth doped yttrium-aluminum-garnet (YAG) slab. In order to provide a relatively increased absorption length and thus a higher overall efficiency, the optical amplifier
6256142 End pumped zig-zag slab laser gain medium July 3, 2001
An optical amplifier which includes an elongated slab of solid state lasing material, such as a rare earth doped yttrium-aluminum-garnet (YAG). In order to provide a relatively increased absorption length and thus a higher overall efficiency, the optical amplifier in accordance with the
6178040 Laser with two orthogonal zig-zag slab gain media for optical phase distortion compensation January 23, 2001
An optical amplifier for use with a solid state laser which includes a pair of elongated slabs of a solid state lasing material, such as a rare earth doped yttrium-aluminum-garnet (YAG) crystal. Two embodiments of the invention are disclosed. In both embodiments of the invention, each of
6094297 End pumped zig-zag slab laser gain medium July 25, 2000
An optical amplifier which includes an elongated slab of solid state lasing material, such as a rare earth doped yttrium-aluminum-garnet (YAG). In order to provide a relatively increased absorption length and thus a higher overall efficiency, the optical amplifier in accordance with the
6069730 Phase conjugated master oscillator-power amplifier breakdown control May 30, 2000
A system and method for monitoring the mode of an input beam to a phase conjugated master oscillator power amplifier (PC MOPA). In order to prevent catastrophic optical damage to the MOPA components, the method and system shuts down the master oscillator when a multi-mode input beam is
5991315 Optically controllable cooled saturable absorber Q-switch slab November 23, 1999
A solid state saturable absorber (SSSA) is formed from a slab of solid state material, such as Cr.sup.4+ : YAG. Optical distortion caused by the absorption process can be minimized by confining absorption to portions of the solid state slab which can be cooled efficiently. In accordance
5841805 Three-level laser system November 24, 1998
The present invention provides a solid state laser gain medium 28 comprising: (a) a gain layer 30 having pump regions 32 and first and second contact regions 34 and 36, respectively; (b) a first transparent layer 38 optically connected to the first contact region 34 of the gain layer
5825791 Variable coherence length high brightness laser architecture October 20, 1998
A high power laser source having a preselected broad bandwidth, including a master oscillator providing a single-mode laser beam, a resonant electro-optical modulator and a source of radio-frequency (rf) modulation voltage, to produce a modulator output beam having sidebands spaced on
5818856 Ozone compatible stimulated brillouin scattering materials October 6, 1998
A device for producing phase conjugation of electromagnetic radiation using stimulated Brillouin scattering (SBS), comprising an SBS cell having a liquid perfluorocarbon as an SBS medium. The liquid perfluorocarbon is selected from the group of compounds having the formula C.sub.x F.sub.
5796761 High efficiency solid state raman laser system August 18, 1998
A high efficiency solid state Raman laser system for shifting the frequency of an input beam emitted by a laser pumping system is described. The laser pumping system suppresses relaxation oscillations in the input beam and emits a constant power, mode-locked pulse train. A solid Raman me
5748654 Diode array providing either a pulsed or a CW mode of operation of a diode pumped solid state la May 5, 1998
A technique for operating a diode pumped solid state laser in a continuous-wave (cw) mode using diodes blocks (12) that are individually operated in a pulsed mode. For some high power laser applications, it is desirable to provide for operation in pulsed and cw modes, but pump diodes
5721749 Laser pulse profile control by modulating relaxation oscillations February 24, 1998
A method and apparatus for controlling the form and timing of pulses emitted by a high-power solid-state laser, without the need for complex feedback circuits. The width and peak intensity of relaxation pulses emitted by the laser are controlled by use of an acousto-optic modulator (
5721748 Intracavity doubled solid state Raman laser system February 24, 1998
An intracavity doubled solid state Raman laser system for converting the frequency of a laser input beam emitted by a laser pumping system is described. A solid Raman medium is disposed within a resonator cavity to shift the frequency of the input beam to produce a Raman beam. The fr
5646773 Solid-state zig-zag slab optical amplifier July 8, 1997
A solid-state laser architecture producing a beam of extremely high quality and brightness, including a master oscillator operating in conjunction with a zig-zag amplifier, an image relaying telescope and a phase conjugation cell. One embodiment of the laser architecture compensates for
5640406 Birefringence compensated laser architecture June 17, 1997
Apparatus, and a related method, for compensating for birefringence introduced in a birefringent medium, such as a solid-state amplifier. The invention includes the combination of a quarter-wave plate, a Faraday rotator and a mirror, which may be a phase conjugation cell. Light passing
5555254 High brightness solid-state laser with zig-zag amplifier September 10, 1996
A solid-state laser architecture producing a beam of extremely high quality and brightness, including a master oscillator operating in conjunction with a zig-zag amplifier, an image relaying telescope and a phase conjugation cell. One embodiment of the laser architecture compensates for
5488619 Ultracompact Q-switched microlasers and related method January 30, 1996
An ultracompact array of microlasers in which Q-switching is performed by intracavity electroabsorptive modulators, to provide an array of relatively high-power beams with good beam quality and other beam characteristics. The microlasers are optically pumped by light beams from an ar
5467214 Birefringence-compensated alignment-insensitive frequency doubler November 14, 1995
Apparatus and a related method for generating a second harmonic frequency optical output from a fundamental frequency input beam, without significant birefringence. The apparatus includes two Type II doubler crystals of equal length arranged with their corresponding axes parallel to
5325380 Dual wavelength laser emitter June 28, 1994
A dual-wavelength laser emitter is provided for emitting a dual-wavelength laser beam. The laser emitter includes a first laser beam source for generating a first laser beam having a first frequency and a second laser beam source for generating a second laser beam having a second frequen
5216681 Highly-efficient solid-state blue laser June 1, 1993
A highly-efficient solid-state blue laser that exploits a strong emission line provided by a solid-state laser medium of neodymium-doped scandium oxide (Nd:Sc.sub.2 O.sub.3) to produce a beam of coherent blue light at a wavelength matching the absorption line of cesium at 455.6 nm (0.455










 
 
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