DE69602110D1 - Einrichtung zur leitungsungebundenen optischen Signalübertragung und Verfahren zur Winkeljustierung - Google Patents

Einrichtung zur leitungsungebundenen optischen Signalübertragung und Verfahren zur Winkeljustierung

Info

Publication number
DE69602110D1
DE69602110D1 DE69602110T DE69602110T DE69602110D1 DE 69602110 D1 DE69602110 D1 DE 69602110D1 DE 69602110 T DE69602110 T DE 69602110T DE 69602110 T DE69602110 T DE 69602110T DE 69602110 D1 DE69602110 D1 DE 69602110D1
Authority
DE
Germany
Prior art keywords
line
optical signal
signal transmission
angle adjustment
free optical
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
DE69602110T
Other languages
English (en)
Other versions
DE69602110T2 (de
Inventor
Yasusaburo Degura
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of DE69602110D1 publication Critical patent/DE69602110D1/de
Application granted granted Critical
Publication of DE69602110T2 publication Critical patent/DE69602110T2/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
    • H04B10/1121—One-way transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
DE69602110T 1995-01-26 1996-01-24 Einrichtung zur leitungsungebundenen optischen Signalübertragung und Verfahren zur Winkeljustierung Expired - Fee Related DE69602110T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP02892295A JP3311187B2 (ja) 1995-01-26 1995-01-26 双方向光空間伝送装置

Publications (2)

Publication Number Publication Date
DE69602110D1 true DE69602110D1 (de) 1999-05-27
DE69602110T2 DE69602110T2 (de) 1999-12-23

Family

ID=12261904

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69602110T Expired - Fee Related DE69602110T2 (de) 1995-01-26 1996-01-24 Einrichtung zur leitungsungebundenen optischen Signalübertragung und Verfahren zur Winkeljustierung

Country Status (4)

Country Link
US (1) US5684614A (de)
EP (1) EP0724340B1 (de)
JP (1) JP3311187B2 (de)
DE (1) DE69602110T2 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3323651B2 (ja) * 1993-09-24 2002-09-09 キヤノン株式会社 光空間通信装置
JP3311197B2 (ja) * 1995-03-22 2002-08-05 キヤノン株式会社 双方向光空間伝送装置
US6154297A (en) * 1997-03-19 2000-11-28 At&T Corp Optical transceiver using common optical path for transmission and reception
JPH10322280A (ja) * 1997-03-28 1998-12-04 Samsung Electron Co Ltd 送受信装置及びその制御方法
US6016212A (en) * 1997-04-30 2000-01-18 At&T Corp Optical receiver and demultiplexer for free-space wavelength division multiplexing communications systems
US6031648A (en) * 1997-05-01 2000-02-29 At&T Corp. Automatic gain control for free-space optical telecommunications links
JPH10322279A (ja) * 1997-05-20 1998-12-04 Canon Inc 双方向光空間伝送装置
JPH11136190A (ja) * 1997-10-24 1999-05-21 Canon Inc 光空間通信装置
US6507424B2 (en) * 1997-10-24 2003-01-14 Canon Kabushiki Kaisha Optical space communication apparatus
JP2001203641A (ja) * 2000-01-20 2001-07-27 Nec Corp 空間光伝送装置
JP2001326608A (ja) * 2000-05-15 2001-11-22 Canon Inc 光空間通信装置
US6483621B1 (en) * 2000-07-28 2002-11-19 Terabeam Corporation Method and apparatus for tone tracking in wireless optical communication systems
US6643467B1 (en) 2000-10-05 2003-11-04 Lucent Technologies Inc. Method and apparatus for controlling received power levels within a free space optical communication system
US7236709B1 (en) * 2000-10-20 2007-06-26 Avanex Corporation Multi-input wavelocker for controlling laser wavelengths of multiple lasers
US6510401B2 (en) 2001-05-11 2003-01-21 The United States Of America As Represented By The Director Of The National Security Agency Method of authenticating beacon
US6970651B1 (en) * 2001-07-31 2005-11-29 Terabeam Corporation High-sensitivity tracking in free-space optical communication systems
US6987932B2 (en) * 2001-11-05 2006-01-17 International Business Machines Corporation Apparatus and method for controlling an optical transceiver
US7389052B2 (en) * 2002-01-30 2008-06-17 Texas Instruments Incorporated Calibration method for station orientation
US7391975B2 (en) * 2002-04-29 2008-06-24 Texas Instruments Incorporated Method of synchronizing servo timing in an optical wireless link
ITMI20021938A1 (it) * 2002-09-12 2004-03-13 Cit Alcatel Ricevitore per sistema di trasmissione ottico in aria in grado di valutare le cause di un'eventuale diminuzione di potenza ricevuta
US20040258415A1 (en) * 2003-06-18 2004-12-23 Boone Bradley G. Techniques for secure free space laser communications
GB0408122D0 (en) * 2004-04-13 2004-05-19 Koninkl Philips Electronics Nv Improvements relating to reception in optical networks
US8200094B1 (en) * 2009-04-11 2012-06-12 Applied Micro Circuits Corporation System and method for free space optical connector alignment
JP5991697B2 (ja) * 2013-12-19 2016-09-14 インターナショナル・ビジネス・マシーンズ・コーポレーションＩｎｔｅｒｎａｔｉｏｎａｌ Ｂｕｓｉｎｅｓｓ Ｍａｃｈｉｎｅｓ Ｃｏｒｐｏｒａｔｉｏｎ 光接続装置、情報処理装置及びデータ伝送方法
US9413448B2 (en) * 2014-08-08 2016-08-09 Nxgen Partners Ip, Llc Systems and methods for focusing beams with mode division multiplexing
US10281581B2 (en) * 2015-05-07 2019-05-07 GM Global Technology Operations LLC Lidar with optical communication
US10039103B2 (en) 2016-05-17 2018-07-31 X Development Llc Acquisition and tracking apparatus for free space optical communications
JP7426675B2 (ja) * 2020-01-27 2024-02-02 株式会社島津製作所 空間光通信用ファイバ分岐構造およびそれを備えた光通信システム
US11307367B2 (en) * 2020-08-17 2022-04-19 X Development Llc Method of precision beam collimation using fiber-optic circulator and wavelength tunable source

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3566128A (en) * 1968-06-17 1971-02-23 Bell Telephone Labor Inc Optical communication arrangement utilizing a multimode optical regenerative amplifier for pilot frequency amplification
EP0287032B1 (de) * 1987-04-13 1996-02-28 Nec Corporation Optisches Ausrichtungssystem
JP2705104B2 (ja) * 1988-05-20 1998-01-26 ソニー株式会社 送信装置
JPH02236477A (ja) * 1989-03-10 1990-09-19 Mitsubishi Electric Corp 光ビーム追尾装置
US5142400A (en) * 1989-12-26 1992-08-25 Cubic Corporation Method and apparatus for automatic acquisition and alignment of an optical beam communication link
JP3187495B2 (ja) * 1991-12-28 2001-07-11 ソニー株式会社 光空間伝送装置
DE4207687C2 (de) * 1992-03-11 1996-08-08 Grundig Emv Einrichtung zur optischen leitungsungebundenen Signalübertragung
JP3132690B2 (ja) * 1992-06-30 2001-02-05 ソニー株式会社 光空間伝送装置
JPH06152516A (ja) * 1992-11-10 1994-05-31 Canon Inc 光空間伝送装置
JP3302141B2 (ja) * 1993-11-16 2002-07-15 キヤノン株式会社 光空間通信方法

Also Published As

Publication number Publication date
EP0724340B1 (de) 1999-04-21
EP0724340A1 (de) 1996-07-31
JP3311187B2 (ja) 2002-08-05
JPH08204645A (ja) 1996-08-09
US5684614A (en) 1997-11-04
DE69602110T2 (de) 1999-12-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee