GB2122371B - Optical switch - Google Patents

Optical switch

Info

Publication number
GB2122371B
GB2122371B GB08315321A GB8315321A GB2122371B GB 2122371 B GB2122371 B GB 2122371B GB 08315321 A GB08315321 A GB 08315321A GB 8315321 A GB8315321 A GB 8315321A GB 2122371 B GB2122371 B GB 2122371B
Authority
GB
United Kingdom
Prior art keywords
optical switch
switch
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
Application number
GB08315321A
Other languages
English (en)
Other versions
GB2122371A (en
GB8315321D0 (en
Inventor
Pierre Franco
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.)
Alcatel CIT SA
Nokia Inc
Original Assignee
Compagnie Industrielle de Telecommunication CIT Alcatel SA
Nokia 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 Compagnie Industrielle de Telecommunication CIT Alcatel SA, Nokia Inc filed Critical Compagnie Industrielle de Telecommunication CIT Alcatel SA
Publication of GB8315321D0 publication Critical patent/GB8315321D0/en
Publication of GB2122371A publication Critical patent/GB2122371A/en
Application granted granted Critical
Publication of GB2122371B publication Critical patent/GB2122371B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0297—Optical equipment protection
    • 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
    • H04B10/03—Arrangements for fault recovery
    • H04B10/032—Arrangements for fault recovery using working and protection systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0293—Optical channel protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Couplings Of Light Guides (AREA)
GB08315321A 1982-06-11 1983-06-03 Optical switch Expired GB2122371B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8210197A FR2528586A1 (fr) 1982-06-11 1982-06-11 Dispositif de commutation optique

Publications (3)

Publication Number Publication Date
GB8315321D0 GB8315321D0 (en) 1983-07-06
GB2122371A GB2122371A (en) 1984-01-11
GB2122371B true GB2122371B (en) 1986-01-02

Family

ID=9274888

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08315321A Expired GB2122371B (en) 1982-06-11 1983-06-03 Optical switch

Country Status (3)

Country Link
JP (1) JPS593412A (cs)
FR (1) FR2528586A1 (cs)
GB (1) GB2122371B (cs)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161683B1 (en) * 1984-05-17 1993-08-11 Nec Corporation Optical switch circuit
KR100325687B1 (ko) 1999-12-21 2002-02-25 윤덕용 주입된 비간섭성 광에 파장 잠김된 페브리-페롯 레이저다이오드를 이용한 파장분할 다중방식 광통신용 광원
JP2002062549A (ja) * 2000-08-14 2002-02-28 Fujitsu Ltd 光スイッチ切り替え制御方法、光ノード装置および光スイッチシステム
KR100496710B1 (ko) * 2002-01-21 2005-06-28 노베라옵틱스코리아 주식회사 주입된 비간섭성 광에 파장 잠김된 광원을 이용한 양방향파장분할다중방식 수동형 광 네트워크
US7515626B2 (en) 2003-05-29 2009-04-07 Novera Optics, Inc. Light source capable of lasing that is wavelength locked by an injected light signal
KR100955129B1 (ko) 2003-05-30 2010-04-28 정보통신연구진흥원 비간섭성　광대역　광원을 이용한 파장분할다중방식　수동형　광 네트워크 구현 방법
KR100698766B1 (ko) 2005-09-07 2007-03-23 한국과학기술원 파장분할 다중방식 수동형 광 가입자 망 시스템에 사용되는장애 위치 감시 장치 및 이를 구비한 파장분할 다중방식수동형 광 가입자 망 시스템
KR100785436B1 (ko) 2005-09-20 2007-12-13 한국과학기술원 방송 서비스와 통신 서비스를 융합한 파장분할 다중방식수동형 광 가입자망
US8571410B2 (en) 2006-10-11 2013-10-29 Novera Optics, Inc. Mutual wavelength locking in WDM-PONS

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1508806A (en) * 1976-02-06 1978-04-26 Vickers Ltd Optical image-splitting systems
GB1581660A (en) * 1977-04-14 1980-12-17 Standard Telephones Cables Ltd Fibre optical switches
GB2019032B (en) * 1978-01-14 1982-08-25 Festivate Ltd Detonation of explosive charges using optical fibres
US4175827A (en) * 1978-02-21 1979-11-27 Sperry Rand Corporation Electro-optical multiplexer having multiple frequency resonant excitation
JPS5537023A (en) * 1978-09-08 1980-03-14 Kokusai Denshin Denwa Co Ltd <Kdd> Light source extending system of light relay
JPS6057254B2 (ja) * 1979-05-23 1985-12-13 ケイディディ株式会社 光中継器の光源冗長方式
JPS55162640A (en) * 1979-06-06 1980-12-18 Kokusai Denshin Denwa Co Ltd <Kdd> Light source redundancy system in optical communication

Also Published As

Publication number Publication date
GB2122371A (en) 1984-01-11
JPS593412A (ja) 1984-01-10
FR2528586B1 (cs) 1984-11-30
FR2528586A1 (fr) 1983-12-16
GB8315321D0 (en) 1983-07-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940603