DE69432502D1 - Leitungsungebundenes optisches Übertragungssystem - Google Patents

Leitungsungebundenes optisches Übertragungssystem

Info

Publication number
DE69432502D1
DE69432502D1 DE69432502T DE69432502T DE69432502D1 DE 69432502 D1 DE69432502 D1 DE 69432502D1 DE 69432502 T DE69432502 T DE 69432502T DE 69432502 T DE69432502 T DE 69432502T DE 69432502 D1 DE69432502 D1 DE 69432502D1
Authority
DE
Germany
Prior art keywords
transmission system
optical transmission
wired optical
wired
transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69432502T
Other languages
English (en)
Other versions
DE69432502T2 (de
Inventor
Tatsuya Morioka
Mototaka Taneya
Hidenori Kawanishi
Atsushi Shimonaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Application granted granted Critical
Publication of DE69432502D1 publication Critical patent/DE69432502D1/de
Publication of DE69432502T2 publication Critical patent/DE69432502T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/112—Line-of-sight transmission over an extended range
    • H04B10/1123—Bidirectional transmission
    • H04B10/1125—Bidirectional transmission using a single common optical path
DE69432502T 1993-09-08 1994-09-07 Leitungsungebundenes optisches Übertragungssystem Expired - Fee Related DE69432502T2 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP22369193 1993-09-08
JP22369193 1993-09-08
JP6747694 1994-04-05
JP6747694 1994-04-05
JP17578094A JP3672202B2 (ja) 1993-09-08 1994-07-27 空間光伝送装置及び空間光伝送方法
JP17578094 1994-07-27

Publications (2)

Publication Number Publication Date
DE69432502D1 true DE69432502D1 (de) 2003-05-22
DE69432502T2 DE69432502T2 (de) 2004-04-08

Family

ID=27299461

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69432502T Expired - Fee Related DE69432502T2 (de) 1993-09-08 1994-09-07 Leitungsungebundenes optisches Übertragungssystem

Country Status (4)

Country Link
US (1) US5539562A (de)
EP (1) EP0642236B1 (de)
JP (1) JP3672202B2 (de)
DE (1) DE69432502T2 (de)

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Publication number Priority date Publication date Assignee Title
DE19512966C2 (de) * 1995-04-10 1998-11-19 Deutsch Zentr Luft & Raumfahrt Verfahren zum Gewinnen von Fehlersignalen für eine räumliche Strahlregelung eines optischen Überlagerungsempfängers und Einrichtung zu dessen Durchführung
JPH09252285A (ja) * 1996-03-15 1997-09-22 Toshiba Corp 近赤外線通信装置
DE59700268D1 (de) * 1996-09-22 1999-08-26 Contraves Ag Verfahren und Vorrichtung zur Kontrolle der Ausrichtung zweier Lichtwellen bei kohärentem Überlagerungsempfang
US5953146A (en) * 1997-01-30 1999-09-14 At&T Corp. Method and apparatus for tracking alignment in wireless optical communications
AU3064199A (en) * 1998-04-03 1999-10-25 Ericsson Inc. Optical communication system and method
US6392222B1 (en) 1999-09-21 2002-05-21 The Boeing Company Machine system having optical endpoint control and associated method
US6420694B1 (en) 1999-09-21 2002-07-16 The Boeing Company Steerable retroreflective system and method
US20020089726A1 (en) * 2000-07-18 2002-07-11 Zhan He System and method for wavelength modulated free space optical communication
DE10104015A1 (de) * 2001-01-31 2002-08-01 Bosch Gmbh Robert Optischer Detektor und Verfahren zum Herstellen einer Anordnung mehrerer Halbleiterschichten
US6934475B2 (en) * 2001-08-16 2005-08-23 The Regents Of The University Of California Free-space optical communications using holographic conjugation
US6660928B1 (en) 2002-04-02 2003-12-09 Essential Research, Inc. Multi-junction photovoltaic cell
JP4585378B2 (ja) * 2005-06-02 2010-11-24 日本電信電話株式会社 光空間通信システムのハイブリッド光軸補正装置
JP4713263B2 (ja) * 2005-07-22 2011-06-29 日本電信電話株式会社 移動追尾式光空間通信システム
US7778503B2 (en) * 2006-03-31 2010-08-17 Nokia Corporation Electronic device having optical data connection of movable housing parts
US7630647B2 (en) * 2006-07-20 2009-12-08 Via Technologies, Inc. Hybrid IR transmission system
US8045859B2 (en) * 2008-05-02 2011-10-25 The United States Of America As Represented By The Secretary Of The Navy High-speed underwater data transmission system and method
FR2934383B1 (fr) * 2008-07-24 2010-09-10 Astrium Sas Terminal de communication optique a pointage asservi par boucle simple.
US8837949B2 (en) * 2008-11-20 2014-09-16 Cubic Corporation Compact wide-angle pixellated active optical link
TWI485504B (zh) * 2012-08-28 2015-05-21 Ind Tech Res Inst 光通訊系統、發射裝置及接收裝置
JPWO2015004736A1 (ja) * 2013-07-09 2017-02-23 株式会社日立製作所 光伝送装置及びそれを用いた回転電機、風力発電システム
EP3143609B1 (de) * 2014-05-12 2019-01-02 University Of Kwazulu-Natal System und verfahren zur identifizierung und/oder messung der ausrichtung von fehlpaarungen zwischen stationen
US9450670B1 (en) * 2014-07-31 2016-09-20 Aoptix Technologies, Inc. Position sensor for a fast steering mirror
US10039103B2 (en) 2016-05-17 2018-07-31 X Development Llc Acquisition and tracking apparatus for free space optical communications
US10371508B1 (en) 2018-04-04 2019-08-06 X Development Llc Method for alignment of phase-sensitive tracking systems using variable delay offsets
US11303355B2 (en) 2018-05-30 2022-04-12 Apple Inc. Optical structures in directional free-space optical communication systems for portable electronic devices
US10700780B2 (en) 2018-05-30 2020-06-30 Apple Inc. Systems and methods for adjusting movable lenses in directional free-space optical communication systems for portable electronic devices
US10705347B2 (en) 2018-05-30 2020-07-07 Apple Inc. Wafer-level high aspect ratio beam shaping
US11549799B2 (en) 2019-07-01 2023-01-10 Apple Inc. Self-mixing interference device for sensing applications
EP4032186A1 (de) * 2019-09-16 2022-07-27 Lasermotive Inc. Optische leistung für elektronische schalter
US11899116B2 (en) * 2019-10-24 2024-02-13 Nuro, Inc. Single beam digitally modulated lidar for autonomous vehicle distance sensing
US20230417537A1 (en) * 2022-06-24 2023-12-28 Macom Technology Solutions Holdings, Inc. Tracking and detector device for optical systems

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970839A (en) * 1970-08-10 1976-07-20 Massachusetts Institute Of Technology Generating and using coherent optical radiation
US3875399A (en) * 1972-09-04 1975-04-01 Research Corp Multi-frequency optimum heterodyne system
US4305666A (en) * 1979-10-24 1981-12-15 Massachusetts Institute Of Technology Optical heterodyne detection system and method
FR2554997B1 (fr) * 1983-11-10 1986-05-16 Thomson Csf Systeme de transmission d'informations numeriques par modulation d'une onde lumineuse coherente
JPS60235102A (ja) * 1984-05-09 1985-11-21 Seiko Epson Corp 透過型光散乱素子
US4697284A (en) * 1986-05-08 1987-09-29 American Telephone And Telegraph Company, At&T Bell Laboratories Single-photodiode optical heterodyne mixers
US4903341A (en) * 1987-12-28 1990-02-20 Mcdonnell Douglas Corporation Semiconductor optical heterodyne detector
US4913547A (en) * 1988-01-29 1990-04-03 Moran Steven E Optically phased-locked speckle pattern interferometer
US5062150A (en) * 1989-01-23 1991-10-29 Massachusetts Institute Of Technology Fiber-based free-space optical system
JPH03203268A (ja) * 1989-12-28 1991-09-04 Toshiba Corp コヒーレント光受信器
DE4033776A1 (de) * 1990-10-24 1992-05-07 Ant Nachrichtentech Anordnung zur optischen nachrichtenuebertragung zwischen satelliten
JPH05136740A (ja) * 1991-11-15 1993-06-01 Canon Inc 光空間通信装置

Also Published As

Publication number Publication date
JPH07327010A (ja) 1995-12-12
EP0642236A2 (de) 1995-03-08
EP0642236B1 (de) 2003-04-16
DE69432502T2 (de) 2004-04-08
US5539562A (en) 1996-07-23
EP0642236A3 (de) 1995-05-31
JP3672202B2 (ja) 2005-07-20

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Legal Events

Date Code Title Description
8332 No legal effect for de
8370 Indication related to discontinuation of the patent is to be deleted
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee