DE69528400D1 - Übertragungsverfahren und optische Verbindung mit spektraler Multiplexierung und Verstärkung - Google Patents

Übertragungsverfahren und optische Verbindung mit spektraler Multiplexierung und Verstärkung

Info

Publication number
DE69528400D1
DE69528400D1 DE69528400T DE69528400T DE69528400D1 DE 69528400 D1 DE69528400 D1 DE 69528400D1 DE 69528400 T DE69528400 T DE 69528400T DE 69528400 T DE69528400 T DE 69528400T DE 69528400 D1 DE69528400 D1 DE 69528400D1
Authority
DE
Germany
Prior art keywords
carrier waves
power
gain
amplifier
amplification
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
DE69528400T
Other languages
English (en)
Inventor
Dominique Bayart
Bertrand Clesca
Jose Chesnoy
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 Lucent SAS
Original Assignee
Alcatel SA
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 Alcatel SA filed Critical Alcatel SA
Application granted granted Critical
Publication of DE69528400D1 publication Critical patent/DE69528400D1/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
    • 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
    • H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
    • 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
    • H04B10/2942—Signal power control in a multiwavelength system, e.g. gain equalisation using automatic gain control [AGC]
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
  • Semiconductor Lasers (AREA)
DE69528400T 1994-01-13 1995-01-11 Übertragungsverfahren und optische Verbindung mit spektraler Multiplexierung und Verstärkung Expired - Lifetime DE69528400D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9400320A FR2715017B1 (fr) 1994-01-13 1994-01-13 Procédé de transmission et liaison optique à multiplexage spectral avec amplification.

Publications (1)

Publication Number Publication Date
DE69528400D1 true DE69528400D1 (de) 2002-11-07

Family

ID=9459002

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69528400T Expired - Lifetime DE69528400D1 (de) 1994-01-13 1995-01-11 Übertragungsverfahren und optische Verbindung mit spektraler Multiplexierung und Verstärkung

Country Status (7)

Country Link
US (1) US5510926A (de)
EP (1) EP0663738B1 (de)
JP (1) JPH07221737A (de)
AT (1) ATE225584T1 (de)
CA (1) CA2139813A1 (de)
DE (1) DE69528400D1 (de)
FR (1) FR2715017B1 (de)

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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
JP3587580B2 (ja) * 1995-03-17 2004-11-10 富士通株式会社 光増幅中継器の入力モニタシステム
JPH0918415A (ja) * 1995-06-28 1997-01-17 Fujitsu Ltd 光サージ抑圧光増幅装置
GB9516017D0 (en) 1995-08-04 1995-10-04 Stc Submarine Systems Ltd Optical level control in wavelength add-drop multiplexing branching units
JP2947136B2 (ja) * 1995-09-14 1999-09-13 日本電気株式会社 光増幅器
JP3556026B2 (ja) * 1995-10-30 2004-08-18 富士通株式会社 複数の波長信号を一括して増幅する多波長一括光増幅器
JP3739453B2 (ja) * 1995-11-29 2006-01-25 富士通株式会社 光増幅器及び該光増幅器を備えた光通信システム
JP3422398B2 (ja) * 1995-12-07 2003-06-30 富士通株式会社 重心波長モニタ方法及び装置、光増幅器並びに光通信システム
DE19547603A1 (de) * 1995-12-20 1997-06-26 Sel Alcatel Ag Optische Verstärkereinrichtung
AU2252697A (en) * 1996-01-30 1997-08-22 Ditech Corporation Input and output monitored amplifier
JP3741767B2 (ja) * 1996-02-26 2006-02-01 富士通株式会社 光ファイバ増幅器
JP3739471B2 (ja) * 1996-03-01 2006-01-25 富士通株式会社 光可変減衰器
JP2910667B2 (ja) * 1996-04-09 1999-06-23 日本電気株式会社 線形中継光増幅伝送装置
JP2904114B2 (ja) * 1996-04-23 1999-06-14 日本電気株式会社 光増幅装置とこれを用いた波長多重光伝送装置
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
JPH09321701A (ja) * 1996-05-31 1997-12-12 Fujitsu Ltd 光通信システム及び光増幅器
US6369938B1 (en) 1996-05-28 2002-04-09 Fujitsu Limited Multi-wavelength light amplifier
JPH09326770A (ja) * 1996-06-06 1997-12-16 Nec Corp 波長分割多重伝送システムに用いられる線形中継器
JP2904131B2 (ja) * 1996-07-04 1999-06-14 日本電気株式会社 波長多重光増幅装置と波長多重光伝送装置
KR980013060A (ko) * 1996-07-15 1998-04-30 김광호 펌프파워를 분리하여 양방향 여기시켜 전송광을 증폭하는 광섬유 증폭장치
US6175436B1 (en) * 1996-07-30 2001-01-16 Tellium, Inc. Automatic feedback gain control for multiple channels in a doped optical fiber amplifier
JP3006500B2 (ja) * 1996-08-01 2000-02-07 日本電気株式会社 波長多重光伝送用光増幅装置
US5907420A (en) * 1996-09-13 1999-05-25 Lucent Technologies, Inc. System and method for mitigating cross-saturation in optically amplified networks
US6031647A (en) * 1996-10-23 2000-02-29 Nortel Networks Corporation Stable power control for optical transmission systems
DE19647488A1 (de) * 1996-11-16 1998-05-20 Alsthom Cge Alcatel Optischer Verstärker für Signale einer großen Bandbreite und optisches Übertragungssystem mit einem solchen optischen Verstärker
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
US6025941A (en) * 1997-09-15 2000-02-15 Lucent Technologies Inc. Stable wavelength division multiplex ring network
JPH11122192A (ja) * 1997-10-17 1999-04-30 Fujitsu Ltd 光増幅器及び該光増幅器を備えた光通信システム
DE69838127T2 (de) 1998-01-27 2008-05-15 Lucent Technologies Inc. Verfahren und Vorrichtung zur Steuerung der optischen Verstärkung in einer optischen Wellenlängenmultiplexübertragung
DE69835510T2 (de) * 1998-02-06 2007-08-09 Fujitsu Ltd., Kawasaki Optischer verstärker und verfahren zur steuerung der lichtquellenerregung von einem optischen verstärker
US6151336A (en) * 1998-02-11 2000-11-21 Sorrento Networks, Inc. Time division multiplexing expansion subsystem
US6496300B2 (en) 1998-02-27 2002-12-17 Fujitsu Limited Optical amplifier
US6441955B1 (en) * 1998-02-27 2002-08-27 Fujitsu Limited Light wavelength-multiplexing systems
US6603596B2 (en) * 1998-03-19 2003-08-05 Fujitsu Limited Gain and signal level adjustments of cascaded optical amplifiers
SE522622C2 (sv) 1998-04-01 2004-02-24 Ericsson Telefon Ab L M Optisk fiberförstärkare med styrd förstärkning
US6400478B1 (en) 1998-04-02 2002-06-04 Sorrento Networks, Inc. Wavelength-division-multiplexed optical transmission system with expanded bidirectional transmission capacity over a single fiber
US6298103B1 (en) 1998-06-16 2001-10-02 Sorrento Networks Corporation Flexible clock and data recovery module for a DWDM optical communication system with multiple clock rates
JP3802992B2 (ja) * 1999-02-08 2006-08-02 富士通株式会社 波長多重光通信システム
EP1130818A1 (de) * 2000-02-29 2001-09-05 Telefonaktiebolaget Lm Ericsson Optisches Kommunikationssystem
US6961522B1 (en) 2000-11-22 2005-11-01 Cisco Technology, Inc. Automatic raman gain and tilt control for ultra-long-distance dense WDM optical communication system
US6515796B2 (en) * 2001-03-20 2003-02-04 Telcordia Technologies, Inc. Saturated amplifier generating burst support signal
US6941079B1 (en) 2001-05-24 2005-09-06 Cisco Technology, Inc. Optical demultiplexer with multi-channel power control and tilt compensation
WO2004040719A1 (ja) 2002-11-01 2004-05-13 Fujitsu Limited 光増幅器の制御装置及び制御方法
WO2004068658A1 (ja) 2003-01-30 2004-08-12 Fujitsu Limited 光増幅器

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US4989200A (en) * 1988-12-22 1991-01-29 Gte Laboratories Incorporated Coherent subcarrier multiplexed optical communication system
GB2230912B (en) * 1989-04-22 1993-10-20 Stc Plc Optical amplifier gain control
JPH043028A (ja) * 1990-04-20 1992-01-08 Nec Corp 光中継器
US5233463A (en) * 1990-07-16 1993-08-03 Pirelli Cavi S.P.A. Active fiber optical amplifier for a fiber optics telecommunication line
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
JP3110805B2 (ja) * 1991-07-01 2000-11-20 富士通株式会社 光中継システム
JP2707892B2 (ja) * 1991-10-18 1998-02-04 日本電気株式会社 光波長分割多重方式
US5276543A (en) * 1991-11-22 1994-01-04 Gte Laboratories Incorporated Optical signal equalizer for wavelength division multiplexed optical fiber systems
GB2265059B (en) * 1992-03-04 1995-07-26 Northern Telecom Ltd Optical regenerators

Also Published As

Publication number Publication date
US5510926A (en) 1996-04-23
FR2715017A1 (fr) 1995-07-13
CA2139813A1 (fr) 1995-07-14
EP0663738A1 (de) 1995-07-19
JPH07221737A (ja) 1995-08-18
ATE225584T1 (de) 2002-10-15
FR2715017B1 (fr) 1996-02-16
EP0663738B1 (de) 2002-10-02

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Legal Events

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