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Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
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| Number | Title | Issue Date |
| 7436586 | Wavelength conversion system, optical integrated device and wavelength conversion method A wavelength conversion system includes a Mach-Zehnder interferometer including two optical waveguides, a non-linear medium provided on one of the two optical waveguides, and a branching ratio adjuster for adjusting the branching ratio of multiplexed light produced ... | 10/14/2008 |
| 7391558 | Laser amplifier power extraction enhancement system and method A high extraction efficiency laser system. The novel laser system includes a master oscillator for providing a laser beam, an amplifier adapted to amplify the laser beam, and an aberrator for aberrating the laser beam to prevent the formation of caustic intensity pa... | 06/24/2008 |
| 7372056 | LPP EUV plasma source material target delivery system An EUV light generation system and method is disclosed that may comprise a droplet generator producing plasma source material target droplets traveling toward the vicinity of a plasma source material target irradiation site; a drive laser; a drive laser focusing opt... | 05/13/2008 |
| 7339727 | Method and system for diffractive beam combining using DOE combiner with passive phase control A system and method for combining plural low power light beams into a coherent high power light beam. Optical amplifiers transmit a plurality of light beams propagating at a common wavelength through an array of optical fiber emitters. Each constituent beam is emitt... | 03/04/2008 |
| 7291805 | Target isolation system, high power laser and laser peening method and system using same A system for applying a laser beam to work pieces, includes a laser system producing a high power output beam. Target delivery optics are arranged to deliver the output beam to a target work piece. A relay telescope having a telescope focal point is placed in the be... | 11/06/2007 |
| 7253945 | Amplitude dividing type laser amplification apparatus An optical amplification apparatus includes a polarizing beam splitter for reflecting a portion of an incident light and transmitting a remaining portion of the incident light, depending upon a polarized state of the incident light, at least two optical amplificatio... | 08/07/2007 |
| 7254288 | Corner cube depolarizer The depolarizer utilizes a commonly available BK7 glass corner cube to transform linearly polarized light into depolarized light with 100% conversion efficiency. The low-cost corner cube is a unique optical element that greatly simplifies the means for producing com... | 08/07/2007 |
| 7221499 | Frequency scanned array control system An optical fiber amplifier array and related method, in which high beam quality is achieved by varying the frequency of an input signal applied to all of the fiber amplifiers, to locate a frequency at which the amplifiers produce nearly coherent optical outputs. In ... | 05/22/2007 |
| 7193772 | Conductively cooled liquid thermal nonlinearity cell for phase conjugation and method A thermal nonlinear cell and method. The cell includes a substantially planar nonlinear medium and a mechanism for removing thermal energy from the medium in a direction substantially orthogonal to said medium. In one embodiment, the mechanism for removing thermal e... | 03/20/2007 |
| 7192425 | Laser treatment apparatus A laser treatment apparatus comprises: an optical guiding body which guides a treatment laser beam omitted from a laser source; an irradiation optical system for irradiating the treatment beam guided by the optical guiding body; a first beam splitter placed in the i... | 03/20/2007 |
| 7180918 | Self-seeded single-frequency solid-state ring laser and system using same A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain me... | 02/20/2007 |
| 7171068 | Method to improve an extinction ratio of an optical device A method to improve an extinction ratio of an optical device, the method includes positioning at least a majority of a plurality of micro-mirrors in an off-state position. A mirror assembly includes the plurality of micro-mirrors. The method also includes selectivel... | 01/30/2007 |
| 7130113 | Passive phasing of fiber amplifiers A method passively locks and phases an array of fiber amplifiers in a fiber amplifier system that emits a beam, such as a laser beam. The method locks the fiber amplifiers so that the fiber amplifiers operate at same or similar frequencies. The method samples a smal... | 10/31/2006 |
| 7123634 | Zig-zag laser amplifier with polarization controlled reflectors A solid state zig-zag slab laser amplifier in which depolarization occurring at total internal reflection from opposed lateral faces of the amplifier slab is controlled by selecting a complex evanescent coating that provides a selected phase retardance that results ... | 10/17/2006 |
| 7119948 | Optical amplifier apparatus and method An optical amplifier (200) splits an optical signal into two signals (210, 212). A first amplifier section (202) receives the first signal (210). The first amplifier section (202) includes a first optical fiber (220), having... | 10/10/2006 |
| 7116687 | High repetition rate passively Q-switched laser for blue laser based on interactions in fiber A laser apparatus is disclosed. The apparatus includes a Neodymium-doped lasing material having first and second surfaces and a passive Q-switch optically coupled to the second surface. The first-surface is substantially transparent to a pump radiation and substanti... | 10/03/2006 |
| 7110171 | Relay telescope including baffle, and high power laser amplifier utilizing the same A laser system includes an optical path having an intracavity relay telescope with a telescope focal point for imaging an output of the gain medium between an image location at or near the gain medium and an image location at or near an output coupler for the laser ... | 09/19/2006 |
| 7103078 | Laser containing a distributed gain medium A laser device which may be used as an oscillator or amplifier comprising a chamber having a volume formed therein and a gain medium within the volume. The gain medium comprises solid-state elements containing active laser ion distributed within the volume. A coolin... | 09/05/2006 |
| 7079737 | Devices and methods for dynamic dispersion compensation The present invention provides devices and methods for dispersion compensation. According to one embodiment of the invention, a dispersion compensating device includes a negative dispersion fiber having an input configured to receive the optical signal, the negative... | 07/18/2006 |
| 7039076 | Fiber amplifier system for producing visible light A light source is disclosed having a pulsed laser, a fiber amplifier optically coupled to the pulsed laser, and a nonlinear frequency converting element optically coupled to the fiber amplifier. The pulsed laser, e.g., a passively Q-switched laser, is configured to ... | 05/02/2006 |
| 7016107 | Low-gain regenerative amplifier system A regenerative amplifier system that is optimized for low-gain gain media is provided. The system is configured to include a minimum number of intra-cavity elements while still eliminating the leakage of the seed pulses from the output beam. In addition, the contras... | 03/21/2006 |
| 7012659 | Image replication system having focusing means to receive reflected light through lightguide from spatial light modulator The present invention relates, in one aspect to an image replication system comprising a light guide (2), a light source (8) arranged to direct emitted light into the first end (2a) of a light guide (2), a reflective spatial light ... | 03/14/2006 |
| 7006547 | Very high repetition rate narrow band gas discharge laser system A method and apparatus for producing a very high repetition rate gas discharge laser system in a MOPA configuration is disclosed which may comprise a master oscillator gas discharge layer system producing a beam of oscillator laser output light pulses at a very high... | 02/28/2006 |
| 7002127 | Method and system for wavefront compensation Techniques for predicting and correcting for optical distortions. A method for correcting optical distortions in a laser system includes operating a laser system at a first time to emit a laser beam. The laser system includes a laser source, a beam transfer assembly... | 02/21/2006 |
| 6992818 | Self-adjusting interferometric outcoupler and method A self-adjusting interferometric outcoupler. In the most general sense, the invention is an optical system (100) comprising a first mechanism (112) for generating a first beam, a second mechanism (122) for receiving the first beam and returning ... | 01/31/2006 |
| 6980357 | Optical amplifier apparatus and method An optical amplifier (200) splits an optical signal into two signals (210, 212). A first amplifier section (202) receives the first signal (210). The first amplifier section (202) includes a first optical fiber (220), having... | 12/27/2005 |
| 6961171 | Phase conjugate relay mirror apparatus for high energy laser system and method A system for directing electromagnetic energy. The inventive system includes a first subsystem mounted on a first platform for transmitting a beam of the electromagnetic energy through a medium and a second subsystem mounted on a second platform for redirecting the ... | 11/01/2005 |
| 6949069 | Endoscope An endoscope assembly is disclosed having a housing adapted to be manipulated by medical personnel, such as a surgeon. An elongated lens tube has one end secured to the housing while an elongated stage is removably secured to the housing so that the stage encompasse... | 09/27/2005 |
| 6937629 | Laser containing a distributed gain medium A laser device which may be used as an oscillator or amplifier comprising a chamber having a volume formed therein and a gain medium within the volume. The gain medium comprises solid-state elements containing active laser ion distributed within the volume. A coolin... | 08/30/2005 |
| 6914918 | Optical device, laser beam source, laser apparatus and method of producing optical device After forming domain inverted layers 3 in an LiTaO3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is fo... | 07/05/2005 |
| 6480327 | High power laser system with fiber amplifiers and loop PCM An optical system for producing high power laser beams has an in/out coupler for receiving an input laser beam from an oscillator. The coupler inputs the beam to a first multiplexer which produces a plurality of beams which are sent to a plurality of fibe... | 11/12/2002 |
| 6385228 | Coherent beam combiner for a high power laser A phase conjugate laser mirror employing Brillouin-enhanced four wave mixing allows multiple independent laser apertures to be phase locked producing an array of diffraction-limited beams with no piston phase errors. The beam combiner has application in l... | 05/07/2002 |
| 6020990 | R.F. signal summing using non-linear optical phase conjugation A system for summing RF modulated optical signals. In order to compensate for performance degradation at the summing junction, the system utilizes four-wave mixing elements to provide the phase conjugates of each of the modulated RF signals. The phase con... | 02/01/2000 |
| 5974074 | Laser system for optical free The instant invention relates to a laser system for optical free space communications, in particular the generation of amplified laser light under conditions in outer space. In the process, an optical beam (72) to be amplified is conducted via a polarizin... | 10/26/1999 |
| 5910857 | Laser amplifier A phase locked phase conjugation system comprises a first (1) and a second (2) stimulated Brillouin scattering (SBS) cell. A laser beam is split into sub beams; one (9) is directed through the first SBS cell as a beam of collimated light and focused into ... | 06/08/1999 |
| 5777770 | Optical phase conjugator and optical reception apparatus and optical transmission apparatus for use with optical communication system employing the optical phase conjugator The invention provides an optical phase conjugator suitable for use with a repeater, for example, for an optical communication system for a very long distance of up to several thousands kilometers across an ocean as well as an optical reception apparatus ... | 07/07/1998 |
| 5754334 | Device for and method of modifying the spectral characteristics of optical signals The modification is accomplished on the basis of the solution known as spectral inversion (or optical phase conjugation). The device (1) comprises a medium, such as typically a dispersion shifted optical fiber (4), into which the signal to be modified is ... | 05/19/1998 |
| 5689363 | Long-pulse-width narrow-bandwidth solid state laser A long pulse laser system emits 500-1000 ns quasi-rectangular pulses at 527 nm with near diffraction-limited divergence and near transform-limited bandwidth. The system consists of one or more flashlamp-pumped Nd:glass zig-zag amplifiers, a very low thres... | 11/18/1997 |
| 5615042 | Compact optical source based on the frequency doubling of a laser and self-stabilized by the depletion of the pump Disclosed is a compact optical source capable of emitting wavelengths (notably in the blue spectrum) which it is difficult for standard laser diodes to achieve. This source has a laser (or laser diode) emitting at a wavelength λoi, a non-linear medium (N... | 03/25/1997 |
| 5594586 | Photorefractive limiting quadratic processor Limiting quadratic processing and compansion in photorefractive two beam coupling is disclosed. Two-beam coupling in photorefractive barium titanate employs the imaged intensity of the signal to amplify the reference beam while maintaining the phase of th... | 01/14/1997 |
