[특허]Alignment acquiring, optical beam communication link

Alignment acquiring, optical beam communication link 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-010/00
출원번호	US-0456520 (1989-12-26)
발명자 / 주소	Solinsky James C. (La Jolla CA)
출원인 / 주소	Cubic Corporation (San Diego CA 02)
인용정보	피인용 횟수 : 32 인용 특허 : 0

초록 ▼

A pair of remote non-cooperating, optical beam transceivers are disposed so that optical alignment between them is possible. A controller selectively causes one of the transceivers, while acquiring a communication link, to operate in a search mode, and the other to operate in a stare mode. Each transceiver has an optical axis and retro-reflects all incident beams which are not substantially aligned with the axis but does not reflect incident beams aligned with the axis. Each transceiver includes an axis-aligned beam transmitting source, a detector of incoming axis-aligned beams, a pointer for aiming the axis anywhere within a hemispherical range while searching for the other transceiver, a component which distinguishes between a retro-reflection of a transmitted beam and an incoming beam from another such transceiver, a sensor for quantitatively measuring the power of retro-reflected beam, a controller for moving the axis in an abbreviated search for a direction in which the power of a retro-reflected beam is maximum, and a beam tracker for maintaining boresight alignment once the transceivers\optical axes are aligned. Preferably, each transceiver includes a matched pair of reflecting telescopes rigidly mounted with their optical axes precisely aligned, one each for transmitting and one for receiving optical beams. Each telescope should include a primary reflector, a subreflector with a Cassegrainian focus behind the primary reflector, and a retro-reflector behind a vertex aperture in the primary reflector.

대표청구항 ▼

Transmitter and receiver optics for an optical beam transceiver comprising: (a) a matched pair of reflecting telescopes rigidly mounted in such relation to each other that they are pointing in the same direction with their optical axes being boresight aligned, one for transmitting and one for receiving optical beams, each of said telescopes comprising: (1) a primary means for parabolically reflecting an incident beam, said primary means having a focal point and defining an aperture at its virtual focal point vertex, (2) a secondary means optically aligned with said primary means and interposed between said primary means and the primary means focal point for hyperbolically reflecting beams incident upon it from the primary means through said aperture, said secondary means having a focal point behind the primary means, the primary means aperture being large enough to permit substantially all of the beams secondarily reflected by said secondary means to pass therethrough, and (3) a tertiary means optically aligned with the primary means for retro-reflecting any beams incident upon it passing through said primary means aperture, the vertex of said tertiary means being generally at the secondary means focal point, said tertiary means defining an aperture at its vertex, (b) a means for transmitting an optical beam through the aperture of the tertiary means of one of the telescopes, said optical beam being optically aligned with said telescope\s primary means and aimed at said telescope\s secondary means, the aperture of said telescope\s tertiary means being generally only large enough to permit passage therethrough of the transmitted beam, (c) means for detecting any optical beam passing through the aperture of the tertiary means of the other telescope from said other telescope\s secondary means, the aperture of said other telescope\s tertiary means being generally only large enough to permit passage therethrough of the beams converging on said other telescopes\secondary means focal point, and (d) means for selectively pointing the telescopes in unison over a suitable range.

이 특허를 인용한 특허 (32)

Chan, Victor J., Alignment of an optical transceiver for a free-space optical communication system.
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Alwan,James J.; Binun,Paul William; Bloom,Scott Harris; Chan,Victor J.; Hoiseth,Glenn Claude; O'Brien, IV,Hugh Michael; Platenberg,Scott; Pyka,Werner; Rogers,Raymond D., Attenuation and calibration systems and methods for use with a laser detector in an optical communication system.
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Alwan, James J.; Binun, Paul William; Bloom, Scott Harris; Chan, Victor J.; Hoiseth, Glenn Claude; O'Brien, IV, Hugh Michael; Platenberg, Scott; Pyka, Werner; Rogers, Raymond D., Attenuation systems and methods for use with an optical detector in an optical communication system.
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Doucet, Mark A.; Panak, David L., Communication network based on the atmospheric transmission of light.
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Danial Ashley Powers ; Balz ; Jr. Arthur P., Fine pointing assembly configuration.
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Panak, David L.; Doucet, Mark A., Hybrid electro-optic cable for free space laser antennas.
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Chie W. Poon ; Robert C. Carden, III ; Robert M. Englekirk, Inter-satellite optical link acquisition sensor.
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Poon, Chie W.; Carden, III, Robert C.; Englekirk, Robert M., Inter-satellite optical link track sensor.
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Johnson, Dan R.; Carroll, Mark A.; Sherman, Daniel R.; Stone, Timothy R., Optical inter-satellite link (OISL) gimbal.
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Doucet,Mark A.; Panak,David L., Optical network employing erbium-doped fiber amplifiers.
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Doucet, Mark A.; Panak, David L., Optical router for a light-based communication network.
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Sakanaka Tetsuo (Sagamihara JPX) Hamuro Takehide (Yokohama JPX), Optical space communication apparatus.
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Featherston, John; Archer, Christopher A.; Cicchiello, James M., Optical transceiver with variable data rate and sensitivity control.
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Herman Melvin Presby ; John A. Tyson, Point-to-multipoint free-space wireless optical communication system.
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Harrison, Keith; Munro, William; Spiller, Timothy; Tan, Michael; Duligall, Joanna; Ionicioiu, Radu, QKD transmitter and transmission method.
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Mendenhall, Todd L.; Narigon, Michael L., Satellite communication optical beam acquisition techniques using a plurality of scan patterns.
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Mendenhall, Todd L.; Narigon, Michael L., Satellite optical communication beam acquisition techniques.
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Thomas A. Greenwood, Steerable retroreflective system and method.
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Chan, Victor J.; Bloom, Scott H., System and method for improved pointing accuracy.
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Bloom, Scott H.; Dunn, James E.; Acampora, Anthony, System and method for providing an eye safe laser communication system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Alignment acquiring, optical beam communication link 원문보기

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Alignment acquiring, optical beam communication link 원문보기

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이 특허를 인용한 특허 (32)

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