DE69835510D1 - Optischer verstärker und verfahren zur steuerung der lichtquellenerregung von einem optischen verstärker - Google Patents

Optischer verstärker und verfahren zur steuerung der lichtquellenerregung von einem optischen verstärker

Info

Publication number
DE69835510D1
DE69835510D1 DE69835510T DE69835510T DE69835510D1 DE 69835510 D1 DE69835510 D1 DE 69835510D1 DE 69835510 T DE69835510 T DE 69835510T DE 69835510 T DE69835510 T DE 69835510T DE 69835510 D1 DE69835510 D1 DE 69835510D1
Authority
DE
Germany
Prior art keywords
optical amplifier
light source
controlling light
source exposure
exposure
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
DE69835510T
Other languages
English (en)
Other versions
DE69835510T2 (de
Inventor
Susumu Kinoshita
Terumi Chikama
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
Publication of DE69835510D1 publication Critical patent/DE69835510D1/de
Application granted granted Critical
Publication of DE69835510T2 publication Critical patent/DE69835510T2/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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/293—Signal power control
    • H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
    • H04B10/296—Transient power control, e.g. due to channel add/drop or rapid fluctuations in the input power
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • 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
    • H04B10/293—Signal power control
    • H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0221—Power control, e.g. to keep the total optical power constant
    • H04J14/02216—Power control, e.g. to keep the total optical power constant by gain equalization

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Optical Communication System (AREA)
  • Endoscopes (AREA)
DE69835510T 1998-02-06 1998-06-05 Optischer verstärker und verfahren zur steuerung der lichtquellenerregung von einem optischen verstärker Expired - Lifetime DE69835510T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2624998 1998-02-06
JP2624998 1998-02-06
PCT/JP1998/002515 WO1999040695A1 (fr) 1998-02-06 1998-06-05 Amplificateur optique, procede de commande de la source de lumiere d'excitation dans un amplificateur optique et procede de commande de l'amplificateur optique

Publications (2)

Publication Number Publication Date
DE69835510D1 true DE69835510D1 (de) 2006-09-21
DE69835510T2 DE69835510T2 (de) 2007-08-09

Family

ID=12188017

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69835510T Expired - Lifetime DE69835510T2 (de) 1998-02-06 1998-06-05 Optischer verstärker und verfahren zur steuerung der lichtquellenerregung von einem optischen verstärker

Country Status (6)

Country Link
US (3) US6542291B1 (de)
EP (1) EP0975103B1 (de)
JP (1) JP4005646B2 (de)
CN (2) CN1964235B (de)
DE (1) DE69835510T2 (de)
WO (1) WO1999040695A1 (de)

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FR2812485B1 (fr) * 2000-07-27 2005-04-08 Sagem Procede de regulation de puissance de longueurs d'ondes entrantes injectees dans un signal optique module
JP2003007697A (ja) * 2001-06-21 2003-01-10 Hitachi Kokusai Electric Inc 半導体装置の製造方法、基板処理方法および基板処理装置
DE10144948B4 (de) * 2001-09-12 2007-10-31 Siemens Ag Verfahren zur Regelung einer Pumpeinrichtung bei optischer Verstärkung eines übertragenen Wellenlängen-Multiplex(-WDM)-Signals
JP2004055637A (ja) * 2002-07-17 2004-02-19 Fujitsu Ltd 光増幅器
JP3994275B2 (ja) * 2002-07-22 2007-10-17 日本電気株式会社 光直接増幅器
FR2843505B1 (fr) 2002-08-09 2006-06-02 Cit Alcatel Dispositif d'amplification optique pour reseau optique a controle de gain automatique
JP4603361B2 (ja) * 2002-11-01 2010-12-22 富士通株式会社 光増幅器の制御装置
US7400443B1 (en) * 2002-11-20 2008-07-15 Ciena Corporation Method and apparatus for optical amplifying device gain control with gain threshold
JP3914236B2 (ja) * 2003-01-30 2007-05-16 富士通株式会社 光増幅器
JP4414800B2 (ja) * 2004-03-25 2010-02-10 株式会社日立コミュニケーションテクノロジー 光伝送装置およびその制御方法
JP4642421B2 (ja) * 2004-09-27 2011-03-02 富士通株式会社 パッケージ始動制御装置
US8064771B2 (en) * 2005-06-30 2011-11-22 Infinera Corporation Active control loop for power control of optical channel groups
US7760423B2 (en) * 2005-07-20 2010-07-20 Sumitomo Electric Industries, Ltd. Optical amplifier
JP4783090B2 (ja) * 2005-08-22 2011-09-28 住友電気工業株式会社 光増幅器
JP4714535B2 (ja) * 2005-09-21 2011-06-29 富士通株式会社 光増幅器
JP4717602B2 (ja) * 2005-11-16 2011-07-06 富士通株式会社 光増幅器
WO2008068842A1 (ja) * 2006-12-05 2008-06-12 Kddi Corporation 光海底ケーブルシステムの光中継器および該光中継器を備える光海底ケーブルシステム
WO2008081538A1 (ja) 2006-12-28 2008-07-10 Fujitsu Limited 光増幅器及びその異常検出方法
US8995053B2 (en) * 2006-12-28 2015-03-31 Alcatel Lucent Positive optical amplifier power transient suppression
US8937762B2 (en) 2010-04-20 2015-01-20 Fujitsu Limited Level control circuit, level control method, and level control system
JP5389262B2 (ja) 2010-06-24 2014-01-15 三菱電機株式会社 波長多重伝送装置
JP5614252B2 (ja) 2010-11-12 2014-10-29 富士通株式会社 光切替装置および通信システム
JP4783475B2 (ja) * 2010-11-25 2011-09-28 住友電気工業株式会社 光増幅器
KR101489279B1 (ko) * 2013-06-27 2015-02-04 주식회사 라이콤 자기 자동이득제어 분산형 라만증폭기의 자동이득제어방법
JP6248551B2 (ja) * 2013-11-05 2017-12-20 富士通株式会社 光伝送システム及び光伝送装置
US20150341158A1 (en) * 2014-05-23 2015-11-26 Mediatek Inc. Loop gain calibration apparatus for controlling loop gain of timing recovery loop and related loop gain calibration method
CN106603168B (zh) * 2016-11-14 2020-09-22 南京熊猫电子股份有限公司 发射机alc设计通用试验平台及试验方法
US20220052502A1 (en) * 2018-09-13 2022-02-17 Ofs Fitel, Llc Bismuth doped fiber amplifier
KR102208782B1 (ko) 2019-02-11 2021-01-27 최광호 회전형 석쇠

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JPH043029A (ja) * 1990-04-20 1992-01-08 Fujitsu Ltd 光増幅用ポンピング光源の駆動方法
JPH04165334A (ja) * 1990-04-26 1992-06-11 Fujitsu Ltd 光ファイバ増幅器の励起光源切替方式
JPH049829A (ja) 1990-04-27 1992-01-14 Mitsui Petrochem Ind Ltd 非線形光学素子及びその製造方法
JPH049929A (ja) * 1990-04-27 1992-01-14 Toshiba Corp 光スイッチ
JP2787820B2 (ja) * 1990-07-20 1998-08-20 キヤノン株式会社 波長多重光通信システム及びそこで用いられる光増幅装置
ATE153812T1 (de) * 1991-02-11 1997-06-15 Sel Alcatel Ag Optisches nachrichtenübertragungssystem für den teilnehmeranschlussbereich mit optischen verstärkern
US5173957A (en) * 1991-09-12 1992-12-22 At&T Bell Laboratories Pump redundancy for optical amplifiers
US5455704A (en) * 1991-11-08 1995-10-03 Mitsubishi Denki Kabushiki Kaisha Optical-fiber light amplifier
JP2731068B2 (ja) * 1992-02-19 1998-03-25 日本電信電話株式会社 光ファイバ増幅器
JPH05292040A (ja) * 1992-04-08 1993-11-05 Hitachi Ltd 光伝送システムの構築方法
JP2914024B2 (ja) 1992-07-29 1999-06-28 日本電気株式会社 光増幅器
JP2988142B2 (ja) * 1992-09-10 1999-12-06 日本電気株式会社 光ブースタアンプおよび光送信回路
GB2280561B (en) * 1993-07-31 1997-03-26 Northern Telecom Ltd Optical transmission system
JP2636152B2 (ja) 1993-11-24 1997-07-30 住友電気工業株式会社 光ファイバ増幅器および光通信システム
FR2715017B1 (fr) * 1994-01-13 1996-02-16 Alcatel Nv Procédé de transmission et liaison optique à multiplexage spectral avec amplification.
IT1270032B (it) * 1994-04-14 1997-04-28 Pirelli Cavi Spa Sistema di telecomunicazione amplificata a multiplazione a divisione di lunghezza d'onda
JP3379052B2 (ja) * 1994-09-26 2003-02-17 富士通株式会社 波長多重光増幅装置及び光波長多重伝送システム及び光波長多重伝送方法
JP3306693B2 (ja) 1995-01-19 2002-07-24 富士通株式会社 光増幅装置，光波長多重通信システム，光端局装置及び光中継装置
JPH08248455A (ja) 1995-03-09 1996-09-27 Fujitsu Ltd 波長多重用光増幅器
JP2871547B2 (ja) * 1995-09-08 1999-03-17 日本電気株式会社 光スペクトルアナライザ装置および光増幅器の制御方法
JPH09185091A (ja) * 1995-12-28 1997-07-15 Nec Corp 波長多重光伝送装置
US6111681A (en) * 1996-02-23 2000-08-29 Ciena Corporation WDM optical communication systems with wavelength-stabilized optical selectors
US6025947A (en) * 1996-05-02 2000-02-15 Fujitsu Limited Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied
JP3306700B2 (ja) 1996-05-02 2002-07-24 富士通株式会社 光増幅装置及び波長多重光伝送システム
JPH09321701A (ja) 1996-05-31 1997-12-12 Fujitsu Ltd 光通信システム及び光増幅器
JPH1012951A (ja) * 1996-06-18 1998-01-16 Nippon Telegr & Teleph Corp <Ntt> 光増幅器
JPH1012954A (ja) * 1996-06-26 1998-01-16 Fujitsu Ltd 光増幅器
JP3070482B2 (ja) * 1996-07-03 2000-07-31 日本電気株式会社 波長多重光伝送用光送信装置と光受信装置
JP2991131B2 (ja) * 1996-10-07 1999-12-20 日本電気株式会社 信号光チャネル数計数器とこれを用いた光増幅装置
US5815613A (en) * 1996-12-31 1998-09-29 Lucent Technologies Inc. Optical switched distributor
JP3860278B2 (ja) * 1997-03-13 2006-12-20 富士通株式会社 遠隔励起方式の波長多重光伝送システム
US6236777B1 (en) * 1997-05-13 2001-05-22 Pirelli Cavi E Sistemi S.P.A. Reliability of an optical communication system and of an optical amplifying system, and a method suitable to this aim
JP2000269578A (ja) * 1999-03-18 2000-09-29 Fujitsu Ltd 光増幅のための方法、装置及びシステム

Also Published As

Publication number Publication date
US20030002139A1 (en) 2003-01-02
CN1964235B (zh) 2010-10-20
US6631026B2 (en) 2003-10-07
EP0975103A1 (de) 2000-01-26
US6542291B1 (en) 2003-04-01
JP4005646B2 (ja) 2007-11-07
US20030147123A1 (en) 2003-08-07
CN1255259A (zh) 2000-05-31
US6873457B2 (en) 2005-03-29
EP0975103B1 (de) 2006-08-09
DE69835510T2 (de) 2007-08-09
CN1964235A (zh) 2007-05-16
EP0975103A4 (de) 2004-08-25
WO1999040695A1 (fr) 1999-08-12

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