DE69941306D1 - Optische übertragungsvorrichtung und optische zwischenverstärkungsvorrichtung - Google Patents

Optische übertragungsvorrichtung und optische zwischenverstärkungsvorrichtung

Info

Publication number
DE69941306D1
DE69941306D1 DE69941306T DE69941306T DE69941306D1 DE 69941306 D1 DE69941306 D1 DE 69941306D1 DE 69941306 T DE69941306 T DE 69941306T DE 69941306 T DE69941306 T DE 69941306T DE 69941306 D1 DE69941306 D1 DE 69941306D1
Authority
DE
Germany
Prior art keywords
optical
transmission device
intermediate amplifier
optical transmission
amplifier
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 - Lifetime
Application number
DE69941306T
Other languages
English (en)
Inventor
Katsuhiro Shirai
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69941306D1 publication Critical patent/DE69941306D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/297—Bidirectional amplification
    • H04B10/2972—Each direction being amplified separately
DE69941306T 1999-10-29 1999-10-29 Optische übertragungsvorrichtung und optische zwischenverstärkungsvorrichtung Expired - Lifetime DE69941306D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1999/006056 WO2001033750A1 (fr) 1999-10-29 1999-10-29 Dispositif d'emission optique et dispositif de repetition optique

Publications (1)

Publication Number Publication Date
DE69941306D1 true DE69941306D1 (de) 2009-10-01

Family

ID=14237158

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69941306T Expired - Lifetime DE69941306D1 (de) 1999-10-29 1999-10-29 Optische übertragungsvorrichtung und optische zwischenverstärkungsvorrichtung

Country Status (5)

Country Link
US (2) US6661947B2 (de)
EP (1) EP1227606B1 (de)
JP (1) JP3834237B2 (de)
DE (1) DE69941306D1 (de)
WO (1) WO2001033750A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0126166D0 (en) * 2001-10-31 2002-01-02 Cit Alcatel Apparatus and method for monitoring an optical transmission line
DE60218625T2 (de) * 2002-02-11 2007-06-28 Alcatel Lucent Schutzverfahren und Schnittstelle für fiberoptische Systeme
US8750702B1 (en) * 2002-06-21 2014-06-10 Rockstar Consortium Us Lp Passive optical loopback
KR100516663B1 (ko) * 2003-01-02 2005-09-22 삼성전자주식회사 방송형-서비스와 데이터-서비스를 동시에 제공하는 수동형광 가입자 망 시스템
JP3898137B2 (ja) 2003-03-06 2007-03-28 富士通株式会社 自動出力復帰方法および光通信システム
WO2004088881A1 (ja) * 2003-03-28 2004-10-14 Fujitsu Limited 光伝送路障害検出システム
US7027210B2 (en) * 2003-05-29 2006-04-11 Fujitsu Limited Method and system for determining gain for an optical signal
WO2004112284A1 (ja) * 2003-06-10 2004-12-23 Fujitsu Limited 遠隔励起方式の光伝送システム
CN100525146C (zh) * 2003-07-04 2009-08-05 日本电信电话株式会社 使用远程泵激的光纤通信系统
US20050174563A1 (en) * 2004-02-11 2005-08-11 Evans Alan F. Active fiber loss monitor and method
JP4458928B2 (ja) * 2004-05-20 2010-04-28 富士通株式会社 光伝送システム
JP4550712B2 (ja) * 2005-10-17 2010-09-22 ルネサスエレクトロニクス株式会社 受光回路
CN1852052B (zh) * 2005-12-09 2010-04-14 华为技术有限公司 光纤线路故障下游告警的抑制方法、装置及系统
US7667889B2 (en) * 2007-02-21 2010-02-23 Pyrophotonics Lasers Inc. Methods and systems for gain control in pulsed optical amplifiers
WO2009001018A2 (fr) * 2007-06-11 2008-12-31 France Telecom Reseau optique longue distance avec localisation des moyens d'amplification au niveau du central optique
US7995598B2 (en) * 2008-01-18 2011-08-09 International Business Machines Corporation Small form factor pluggable (SFP) status indicator
US8964801B2 (en) * 2009-06-11 2015-02-24 Esi-Pyrophotonics Lasers, Inc. Method and system for stable and tunable high power pulsed laser system
JP5458685B2 (ja) * 2009-06-16 2014-04-02 富士通株式会社 光伝送装置
JP6312927B2 (ja) * 2014-05-14 2018-04-18 ▲華▼▲為▼▲海▼洋▲網▼▲絡▼有限公司 光中継器及び光ファイバー通信システム

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0828680B2 (ja) 1987-07-23 1996-03-21 国際電信電話株式会社 双方向光ファイバ通信系の障害点監視方式
JPH0313018A (ja) * 1989-06-12 1991-01-22 Nippon Telegr & Teleph Corp <Ntt> 光直接増幅中継伝送路の監視方式
JP3137632B2 (ja) * 1989-08-31 2001-02-26 富士通株式会社 光ファイバ増幅器を備えた光通信方式
GB2251148B (en) * 1990-09-18 1995-04-12 Fujitsu Ltd Optical repeater having loop-back function
JPH04137833A (ja) * 1990-09-28 1992-05-12 Fujitsu Ltd 光中継システム
JP3320452B2 (ja) * 1992-07-15 2002-09-03 沖電気工業株式会社 光中継器の監視制御方式
US5343320A (en) * 1992-08-03 1994-08-30 At&T Bell Laboratories Pump laser control circuit for an optical transmission system
JP3209242B2 (ja) * 1992-12-10 2001-09-17 日本電信電話株式会社 高出力光送信部の出力シャットダウン制御装置
JP2551371B2 (ja) * 1993-12-01 1996-11-06 日本電気株式会社 光中継器
IT1273465B (it) * 1995-01-27 1997-07-08 Pirelli Cavi Spa Sistema di telecomunicazione ottica bidirezionale comprendente un amplificatore ottico bidirezionale
JPH0993202A (ja) * 1995-09-21 1997-04-04 Fujitsu Ltd 双方向光増幅回路
JP3363003B2 (ja) * 1995-10-03 2003-01-07 株式会社日立製作所 光増幅装置及び光増幅装置を用いた光伝送システム
JPH09113941A (ja) 1995-10-19 1997-05-02 Sumitomo Electric Ind Ltd 光通信システム
JP2962347B2 (ja) 1996-01-16 1999-10-12 日本電気株式会社 光増幅中継方式
JP3317834B2 (ja) * 1996-01-18 2002-08-26 日本電気株式会社 光送信回路
JPH09261187A (ja) 1996-03-19 1997-10-03 Fujitsu Ltd 無中継光伝送システムのリモートアンプおよび障害点標定方法
CA2172873C (en) * 1996-03-28 2002-03-12 Kim Byron Roberts Method of determining optical amplifier failures
FR2747868B1 (fr) * 1996-04-18 1998-05-15 Alcatel Submarcom Montage a deux amplificateurs optiques, notamment pour repeteur d'un systeme de telecommunication par voie sous-marine
US5815308A (en) * 1996-05-20 1998-09-29 Northern Telecom Limited Bidirectional optical amplifier
US6188509B1 (en) * 1997-01-05 2001-02-13 Korea Advanced Institute Science And Technology Simple bidirectional add/drop amplifier module based on a single multiplexer
US6344915B1 (en) * 1997-06-20 2002-02-05 Ciena Corporation System and method for shutting off an optical energy source in a communication system having optical amplifiers
KR100219719B1 (ko) * 1997-07-15 1999-09-01 윤종용 감시가능한 파장분할다중화 광증폭기 제어시스템 및 그 제어방법
US6441955B1 (en) * 1998-02-27 2002-08-27 Fujitsu Limited Light wavelength-multiplexing systems
US6134032A (en) * 1999-04-02 2000-10-17 Tyco Submarine Systems Ltd. Method and apparatus for automatically identifying system faults in an optical communications system from repeater loop gain signatures
US6236499B1 (en) * 1999-04-15 2001-05-22 Nortel Networks Limited Highly scalable modular optical amplifier based subsystem

Also Published As

Publication number Publication date
EP1227606B1 (de) 2009-08-19
US20040032645A1 (en) 2004-02-19
US20020126952A1 (en) 2002-09-12
EP1227606A1 (de) 2002-07-31
WO2001033750A1 (fr) 2001-05-10
EP1227606A4 (de) 2006-04-26
JP3834237B2 (ja) 2006-10-18
US6924927B2 (en) 2005-08-02
US6661947B2 (en) 2003-12-09

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