FR2820570B1 - Systeme et procede de transmission optique - Google Patents

Systeme et procede de transmission optique

Info

Publication number
FR2820570B1
FR2820570B1 FR0111566A FR0111566A FR2820570B1 FR 2820570 B1 FR2820570 B1 FR 2820570B1 FR 0111566 A FR0111566 A FR 0111566A FR 0111566 A FR0111566 A FR 0111566A FR 2820570 B1 FR2820570 B1 FR 2820570B1
Authority
FR
France
Prior art keywords
transmission system
optical transmission
optical
transmission
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
FR0111566A
Other languages
English (en)
Other versions
FR2820570A1 (fr
Inventor
Toshiki Tanaka
Takao Naito
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 FR2820570A1 publication Critical patent/FR2820570A1/fr
Application granted granted Critical
Publication of FR2820570B1 publication Critical patent/FR2820570B1/fr
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
    • H04B10/29—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
    • 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
    • H04B10/2916—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 using Raman or Brillouin amplifiers
    • 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
    • H04B10/298—Two-way repeaters, i.e. repeaters amplifying separate upward and downward lines

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
FR0111566A 2001-02-07 2001-09-06 Systeme et procede de transmission optique Expired - Fee Related FR2820570B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001030836A JP4541574B2 (ja) 2001-02-07 2001-02-07 光中継伝送システムおよび光中継伝送方法

Publications (2)

Publication Number Publication Date
FR2820570A1 FR2820570A1 (fr) 2002-08-09
FR2820570B1 true FR2820570B1 (fr) 2015-03-20

Family

ID=18895001

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0111566A Expired - Fee Related FR2820570B1 (fr) 2001-02-07 2001-09-06 Systeme et procede de transmission optique

Country Status (3)

Country Link
US (1) US6831777B2 (fr)
JP (1) JP4541574B2 (fr)
FR (1) FR2820570B1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001249369A (ja) * 2000-03-02 2001-09-14 Nec Corp 光増幅器とこれを用いた光増幅中継器及び波長多重光伝送装置
DE10303314A1 (de) * 2003-01-28 2004-07-29 Marconi Communications Gmbh Ausgangsstufe für die WDM-Nachrichtenübertragung und Verfahren zum Austauschen von Fülllichtquellen in einer solchen Ausgangsstufe
JP3961973B2 (ja) * 2003-03-14 2007-08-22 富士通株式会社 Ｏｔｄｒによる測定方法及び端局装置
JP2004301991A (ja) * 2003-03-31 2004-10-28 Fujitsu Ltd 光増幅制御ユニットおよび光増幅制御方法
KR100592880B1 (ko) * 2004-12-10 2006-06-26 한국전자통신연구원 병렬 구조 라만 광증폭기
US20060140633A1 (en) * 2004-12-28 2006-06-29 Sanmina-Sci Corporation Systems and methods for optical pump redundancy
EP1788728A1 (fr) * 2005-11-18 2007-05-23 Alcatel Lucent Amplificateur Raman et système de transmission optique
JP2008283175A (ja) * 2007-04-10 2008-11-20 Fujikura Ltd ファイバレーザ装置
JPWO2013157245A1 (ja) * 2012-04-20 2015-12-21 日本電気株式会社 多重光伝送路、光伝送システムおよび光伝送方法
WO2017170008A1 (fr) * 2016-03-30 2017-10-05 日本電気株式会社 Appareil de source de lumière d'excitation et procédé d'égalisation de gain
US11476635B2 (en) 2017-08-25 2022-10-18 Nippon Telegraph And Telephone Corporation Optically amplified repeater system and optical amplifier
CN109327261B (zh) * 2018-10-18 2021-05-11 武汉光迅电子技术有限公司 一种光中继器的光路结构
EP3869637A4 (fr) 2018-10-18 2021-12-08 NEC Corporation Répéteur optique et procédé pour relayer un signal optique
US20240007189A1 (en) * 2020-08-21 2024-01-04 Nippon Telegraph And Telephone Corporation Optical transmission system

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241414A (en) * 1992-08-21 1993-08-31 At&T Bell Laboratories Fault tolerant optical amplifier arrangement
JP2757912B2 (ja) 1996-01-16 1998-05-25 日本電気株式会社 光ファイバ通信方式
JPH1073852A (ja) * 1996-09-02 1998-03-17 Nippon Telegr & Teleph Corp <Ntt> 光増幅伝送システム
JP3461113B2 (ja) 1997-02-18 2003-10-27 日本電信電話株式会社 光増幅器
CN1211841A (zh) * 1997-09-12 1999-03-24 三星电子株式会社 用于光纤放大的大功率泵浦器件
JP3779054B2 (ja) 1998-01-23 2006-05-24 富士通株式会社 可変光学フィルタ
JP3638777B2 (ja) 1998-02-04 2005-04-13 富士通株式会社 利得等化のための方法並びに該方法の実施に使用する装置及びシステム
FR2781321A1 (fr) * 1998-07-06 2000-01-21 Alsthom Cge Alcatel Amplification quasi-distribuee dans un systeme de transmission a fibre optique a signaux solitons
US6344922B1 (en) * 1998-07-21 2002-02-05 Corvis Corporation Optical signal varying devices
EP2306605B1 (fr) 1998-07-23 2012-05-23 The Furukawa Electric Co., Ltd. Unité de pompage pour un amplificateur Raman et amplificateur Raman comportant la même
US6163636A (en) 1999-01-19 2000-12-19 Lucent Technologies Inc. Optical communication system using multiple-order Raman amplifiers
US6052219A (en) * 1999-02-16 2000-04-18 Tyco Submarine Systems Ltd. Wide bandwidth Raman amplifier capable of employing pump energy spectrally overlapping the signal
US6356383B1 (en) * 1999-04-02 2002-03-12 Corvis Corporation Optical transmission systems including optical amplifiers apparatuses and methods
JP2001015845A (ja) * 1999-07-01 2001-01-19 Nippon Telegr & Teleph Corp <Ntt> ラマン分布増幅器を利用した波長多重光伝送システム
US6611370B2 (en) * 1999-07-23 2003-08-26 The Furukawa Electric Co., Ltd. Raman amplifier system, apparatus and method for identifying, obtaining and maintaining an arbitrary Raman amplification performance
US6414786B1 (en) * 2000-03-27 2002-07-02 Tycom (Us) Inc. Method and apparatus for reducing polarization dependent gain in Raman amplification
US6631027B2 (en) * 2000-04-13 2003-10-07 Corning Incorporated Universal controller for an optical amplifier that operates over a wide dynamic range of optical signals and optical amplifiers utilizing such controllers
US6452715B1 (en) * 2000-08-29 2002-09-17 Ciena Corporation Method and apparatus for determining a fiber plant gain transfer function and utilizing same to control distributed gain
JP2002139754A (ja) * 2000-10-30 2002-05-17 Sumitomo Electric Ind Ltd ラマン増幅用励起モジュール、ラマン増幅器および光通信システム
US6433921B1 (en) * 2001-01-12 2002-08-13 Onetta, Inc. Multiwavelength pumps for raman amplifier systems
US6433922B1 (en) * 2001-02-26 2002-08-13 Redc Optical Networks Ltd. Apparatus and method for a self adjusting Raman amplifier
JP4188573B2 (ja) * 2001-04-09 2008-11-26 株式会社日立製作所 光増幅器の増幅帯域拡大方法、光増幅器、及び増設ユニット

Also Published As

Publication number Publication date
US20020105716A1 (en) 2002-08-08
US6831777B2 (en) 2004-12-14
FR2820570A1 (fr) 2002-08-09
JP2002232362A (ja) 2002-08-16
JP4541574B2 (ja) 2010-09-08

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Legal Events

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Year of fee payment: 16

ST Notification of lapse

Effective date: 20180531