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| Number | Title | Issue Date |
| 8134774 | Dynamically reconfigurable negative index material crossbars with gain Various embodiments of the present invention are directed to negative index material crossbars that can be electronically controlled and dynamically reconfigured to exhibit a variety of electromagnetic properties. In one aspect, a negative index material crossbar co... | 03/13/2012 |
| 8098423 | System and method for voice control of medical devices A medical device includes an insertable portion capable of being inserted into an orifice associated with a body of a patient. The insertable portion comprising an automated head unit capable of being manipulated in at least two axes of motion based at least in part... | 01/17/2012 |
| 8089688 | Broadband neodymium-ytterbium-silica doped amplified spontaneous emission optical fiber source by spectral filtered reinjected signals The present invention provides an amplified spontaneous emission fiber optic source having high optical power (>20 mW) and a spectral broadband emission (>70 nm) centered near a wavelength of 1060 nm. In an embodiment of the invention, the fiber source comprises a c... | 01/03/2012 |
| 8072677 | Device for amplifying a laser with high energy and high beam quality The field of the invention is that of high-energy laser beam amplifiers and associated optical pumping devices. The object of the invention is to use an amplifier configuration and a cooling means which do not have the drawbacks of cryogenic systems that have been u... | 12/06/2011 |
| 7990607 | Solid-state light source based illumination apparatus and projection system having same An exemplary illumination apparatus for use in a projection system includes a number of solid-state light sources and first non-imaging collection optics, a power coupler, an optical amplifier, and a second non-imaging collection optic. The solid-state light sources... | 08/02/2011 |
| 7907333 | Optical source and apparatus for remote sensing An optical amplifier is configured to amplify an injected seed optical pulse. The optical amplifier may include two or more gain sections coupled to form a continuous solid waveguide along a primary optical path. Each gain section may include: (i) an optical isolato... | 03/15/2011 |
| 7903326 | Static phase mask for high-order spectral phase control in a hybrid chirped pulse amplifier system A chirped pulse amplification (CPA) system comprises an optical pulse stretcher and an optical pulse compressor that are mismatched in that the optical pulse compressor includes a bulk optical grating while the optical pulse stretcher does not. High order dispersion... | 03/08/2011 |
| 7826133 | Doped polymeric optical waveguide amplifiers A polymer-based optical waveguide amplifier comprises a polymer host material doped with rare earth ions wherein the polymer host material is a material that functions as a resist in a direct patterning technique. The polymer host material can be epoxy novalac resin... | 11/02/2010 |
| 7800819 | Laser amplifier power extraction enhancement system and method A high extraction efficiency laser system. The novel laser system includes a laser amplifier and a laser source adapted to provide a laser beam to the amplifier such that polarization states for incident and reflected light within the amplifier are perpendicular one... | 09/21/2010 |
| 7791791 | Transparent electro-optic gain ceramics and devices The present invention provides a rare-earth ions doped, especially erbium and ytterbium doped transparent electro-optic gain ceramic material consisting lead, zirconium, titanium and lanthanum. The electro-optic gain ceramic material either has a linear electro-opti... | 09/07/2010 |
| 7787175 | Pulse selecting in a chirped pulse amplification system A chirped pulse amplification (CPA) system and method is described wherein a pulse selector is added after a final amplifier in the system. The pulse selector is configured to select amplified pulses such that the system output repetition rate of the CPA system is b... | 08/31/2010 |
| 7768697 | Spectrally resolved fast monitor A method and apparatus for monitoring spectral tilt uses an arrayed waveguide grating (AWG) to separate a multiplexed optical signal having a plurality of wavelength channels into a plurality of sub-bands, where each sub-band spans a different wavelength range and i... | 08/03/2010 |
| 7768696 | THZ wave generator The present invention purposes to provide a THz-wave generator capable of generating a THz-wave stably and efficiently, and particularly, to provide the THz-wave generator which is stable against a frequency shift of a laser source and which can easily vary the freq... | 08/03/2010 |
| 7760421 | Method and apparatus for enhancing plasmon polariton and phonon polariton resonance A metallic nano-particle surrounded by an amplifying medium results in a boundary condition that creates a singularity in the particle's dynamic polarizability at the localized surface plasmon resonance and at a critical value of the gain is disclosed. The boundary ... | 07/20/2010 |
| 7751118 | Method and apparatus for ultra-violet-wavelength laser-induced fluorescence (UV-LIF) using optical output from a photonic-crystal rod A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and o... | 07/06/2010 |
| 7746546 | Amplifying optical electromagnetic wave concentrator An amplifying optical electromagnetic wave concentrator includes an amplification focusing device and a receiver. The amplification focusing device focuses an incident optical electromagnetic wave on the receiver. The amplification focusing device is doped with acti... | 06/29/2010 |
| 7729045 | Amplifier chain for generating ultrashort different width light pulses The present invention relates to an amplifier chain for generating ultrashort light pulses of different pulse durations and applies in particular to amplifier chains suitable for amplifying picosecond and femtosecond pulses. The amplifier chain comprising a stretche... | 06/01/2010 |
| 7724421 | Phase sensitive optical amplification Phase-sensitive amplification (PSA), which is produced by degenerate four-wave mixing (FWM) in a randomly-birefringent fiber, has the potential to improve the performance of optical communication systems. Scalar FWM, which is driven by parallel pumps, is impaired by... | 05/25/2010 |
| 7715091 | Spatially-fed high power amplifier with shaped reflectors A spatially-fed high-power amplifier comprises one or more shaped reflectors to reflect an initial wavefront, and an active array amplifier to amplify the reflected wavefront to generate a high-power planar wavefront. The shaped reflectors provide the reflected wave... | 05/11/2010 |
| 7679818 | Optical switch using rare earth doped glass The present invention provides an optical switch including a loss element having a signal loss, and a rare earth doped gain element optically connected in series with the loss element. The rare earth doped gain element is operable to produce a signal gain. The signa... | 03/16/2010 |
| 7675674 | High-power-optical-amplifier using a number of spaced, thin slabs The high-power-optical-amplifier of the present invention uses a number of spaced, thin slabs (e.g., disc-shaped doped-slabs that are stacked, with a space between discs), aligned to give an amplifier both with a high active cross-section and a very high surface are... | 03/09/2010 |
| 7656578 | Microchip-Yb fiber hybrid optical amplifier for micro-machining and marking The invention describes techniques for the control of the spatial as well as spectral beam quality of multi-mode fiber amplification of high peak power pulses as well as using such a configuration to replace the present diode-pumped, Neodynium based sources. Perfect... | 02/02/2010 |
| 7652816 | Method for network commissioning and upgrading using amplified spontaneous emission (ASE) sources This invention provides a method for commissioning and upgrading an optical ring network using its internal amplifiers as Automatic Spontaneous Emission sources of light that are used in making measurements. A modular segmented approach is adopted and the network is... | 01/26/2010 |
| 7633673 | System and method for generating infrared light for use in medical procedures A medical device includes an insertable portion capable of being inserted into an orifice associated with a body of a patient. The insertable portion comprising an automated head unit capable of being manipulated in at least two axes of motion based at least in part... | 12/15/2009 |
| 7589887 | Low loss fiber optic link using an optical amplifier An optical amplifier is included within a fiber optic transmission system for driving a fiber optic towed decoy system. The optical amplifier boosts the optical power of a laser on board the driving system and compensates for link loss within the driving system and ... | 09/15/2009 |
| 7576909 | Multimode amplifier for amplifying single mode light The invention describes techniques for the control of the spatial as well as spectral beam quality of multi-mode fiber amplification of high peak power pulses as well as using such a configuration to replace the present diode-pumped, Neodynium based sources. Perfect... | 08/18/2009 |
| 7567376 | High power fiber chirped pulse amplification system utilizing telecom-type components A chirped pulse amplifier (CPA) system having a mode-locked laser and a high-speed pulse selector, wherein the pulse selector modulates output pulses based upon an applied modulation voltage. A pulse selector may be an integrated electro-optic modulator, for example... | 07/28/2009 |
| 7554717 | Optical transmission device equipped with pluggable variable optical attenuator Disclosed is an optical transmission device with a simple configuration that can attenuate an input optical power only when it is necessary so that it falls within a predetermined range, and can suppress insertion loss when it is unnecessary. A variable optical atte... | 06/30/2009 |
| 7551347 | Optical amplification characteristics simulation apparatus and optical amplification characteristics simulation method In an optical amplification characteristics simulation apparatus according to the present invention, using spectrums of a signal light input to an optical amplifier and a characteristic parameter for amplification medium, gain wavelength characteristics of the ampli... | 06/23/2009 |
| 7548367 | Laser active optronic system with improved detectivity A laser active optronic system has an emission channel for the emission by an emission source of a laser beam which illuminates a target, and a receiving channel for receiving the wave backscattered by the target. An optical switching device is positioned in the rec... | 06/16/2009 |
| 7535628 | Laser light source, method of laser oscillation, and method of laser processing A laser light source includes a light source section for outputting pulse laser light λ1, λ2 with a mutually identical repetition frequency, an optical amplification section for amplifying and outputting the pulse laser light λ1, ... | 05/19/2009 |
| 7529021 | Semiconductor laser module, optical amplifier, and method of manufacturing the semiconductor laser module A semiconductor laser module has a semiconductor laser device; a package for housing the semiconductor laser device; a PBC fixed in the package for polarization-synthesizing two laser beams output from the semiconductor laser device; a depolarizing element fixed in ... | 05/05/2009 |
| 7529020 | Optical amplifier module housed in a universal cable joint for an undersea optical transmission system An optical amplifier module contains at least one optical amplifier. The module includes an internal housing having an outer dimension substantially equal to an outer dimension of an internal fiber splice housing of an undersea optical fiber cable joint. The interna... | 05/05/2009 |
| 7518787 | Drive laser for EUV light source A laser light source is disclosed having a laser oscillator producing an output beam; a first amplifier amplifying the output beam to produce a first amplified beam, and a second amplifier amplifying the first amplified beam to produce a second amplified beam. For t... | 04/14/2009 |
| 7518788 | In-line, high energy fiber chirped pulse amplification system By writing non-linear chirp into fiber Bragg gratings, greater control over dispersion compensation in chirped pulse amplification (CPA) systems is obtained, such that, for example, the dispersion profile of the fiber Bragg grating and a bulk compressor may be match... | 04/14/2009 |
| 7505196 | Method and apparatus for controlling and protecting pulsed high power fiber amplifier systems An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pul... | 03/17/2009 |
| 7489438 | Dielectric coating for an optical repeater pressure vessel An undersea optical repeater is provided. The repeater includes a pressure vessel for use in an undersea environment. The pressure vessel includes a pressure housing and at least two cable reeving elements disposed on opposing ends of the pressure housing for respec... | 02/10/2009 |
| 7486436 | All fiber chirped pulse amplification system and method An all-fiber chirped pulse amplification (CPA) system and method is provided that utilizes a hollow core photonic bandgap fiber as a pulse compressor and a dispersion compensating optical fiber as a pulse stretcher that are matched with respect to both the amount an... | 02/03/2009 |
| 7483204 | Inexpensive variable rep-rate source for high-energy, ultrafast lasers System for converting relatively long pulses from rep-rate variable ultrafast optical sources to shorter, high-energy pulses suitable for sources in high-energy ultrafast lasers. Fibers with positive group velocity dispersion (GVD) and self phase modulation are adva... | 01/27/2009 |
| 7483203 | Phase-sensitive amplification in a fiber A method of and device for generating an amplified optical signal directly in an optical fiber by way of phase-sensitive amplification based on one or more four-wave mixing (FWM) processes. In one embodiment, an input signal and two pump waves are applied to a highl... | 01/27/2009 |
