FR2828035B1 - Systeme de transmission optique a gains commandes a distance par signaux de tonalite a caracteristiques variables - Google Patents

Systeme de transmission optique a gains commandes a distance par signaux de tonalite a caracteristiques variables

Info

Publication number
FR2828035B1
FR2828035B1 FR0202269A FR0202269A FR2828035B1 FR 2828035 B1 FR2828035 B1 FR 2828035B1 FR 0202269 A FR0202269 A FR 0202269A FR 0202269 A FR0202269 A FR 0202269A FR 2828035 B1 FR2828035 B1 FR 2828035B1
Authority
FR
France
Prior art keywords
transmission system
optical transmission
remotely controlled
tone signals
variable characteristic
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
FR0202269A
Other languages
English (en)
Other versions
FR2828035A1 (fr
Inventor
Shin Ichirou Harasawa
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 FR2828035A1 publication Critical patent/FR2828035A1/fr
Application granted granted Critical
Publication of FR2828035B1 publication Critical patent/FR2828035B1/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
    • H04B10/2942—Signal power control in a multiwavelength system, e.g. gain equalisation using automatic gain control [AGC]
    • 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
    • H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
    • H04B10/0777—Monitoring line amplifier or line repeater equipment
    • 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
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/07—Monitoring an optical transmission system using a supervisory signal
    • H04B2210/075—Monitoring an optical transmission system using a supervisory signal using a pilot tone

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
FR0202269A 2001-07-26 2002-02-22 Systeme de transmission optique a gains commandes a distance par signaux de tonalite a caracteristiques variables Expired - Fee Related FR2828035B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001226087A JP4651231B2 (ja) 2001-07-26 2001-07-26 光伝送システム

Publications (2)

Publication Number Publication Date
FR2828035A1 FR2828035A1 (fr) 2003-01-31
FR2828035B1 true FR2828035B1 (fr) 2014-08-22

Family

ID=19058971

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0202269A Expired - Fee Related FR2828035B1 (fr) 2001-07-26 2002-02-22 Systeme de transmission optique a gains commandes a distance par signaux de tonalite a caracteristiques variables

Country Status (4)

Country Link
US (1) US7031618B2 (fr)
JP (1) JP4651231B2 (fr)
FR (1) FR2828035B1 (fr)
GB (1) GB2379815B (fr)

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US7365902B2 (en) 2003-04-03 2008-04-29 Mitsubishi Denki K.K. Optical amplifier and optical communication system
TWI240523B (en) * 2004-06-25 2005-09-21 Realtek Semiconductor Corp Method for controlling parameters of adaptive equalizer
JP2006060764A (ja) * 2004-07-20 2006-03-02 Mitsubishi Electric Corp 光通信装置及び光通信システム
US7715710B2 (en) * 2006-05-30 2010-05-11 Alcatel Lucent Method and system for power management in optical networks
CN106170933B (zh) * 2014-05-14 2019-04-12 华为海洋网络有限公司 一种光中继器，及光纤通信系统
US9979472B1 (en) * 2016-12-29 2018-05-22 Juniper Networks, Inc. Methods and apparatus for detecting and compensating power imbalance and modulation imperfection for a coherent optical transmitter
EP3598668A4 (fr) * 2017-03-17 2020-03-18 Nec Corporation Système de câble optique sous-marin et dispositif de relais optique sous-marin
US10992389B2 (en) 2018-02-07 2021-04-27 Infinera Corporation Independently routable digital subcarriers with configurable spacing for optical communication networks
US11368228B2 (en) 2018-04-13 2022-06-21 Infinera Corporation Apparatuses and methods for digital subcarrier parameter modifications for optical communication networks
US11095389B2 (en) 2018-07-12 2021-08-17 Infiriera Corporation Subcarrier based data center network architecture
US11258528B2 (en) 2019-09-22 2022-02-22 Infinera Corporation Frequency division multiple access optical subcarriers
US11075694B2 (en) 2019-03-04 2021-07-27 Infinera Corporation Frequency division multiple access optical subcarriers
US11336369B2 (en) 2019-03-22 2022-05-17 Infinera Corporation Framework for handling signal integrity using ASE in optical networks
US11418312B2 (en) 2019-04-19 2022-08-16 Infinera Corporation Synchronization for subcarrier communication
US10972184B2 (en) 2019-05-07 2021-04-06 Infinera Corporation Bidirectional optical communications
US11218220B2 (en) 2019-05-14 2022-01-04 Infinera Corporation Out-of-band communication channel for subcarrier-based optical communication systems
US11239935B2 (en) * 2019-05-14 2022-02-01 Infinera Corporation Out-of-band communication channel for subcarrier-based optical communication systems
US11296812B2 (en) 2019-05-14 2022-04-05 Infinera Corporation Out-of-band communication channel for subcarrier-based optical communication systems
US11177889B2 (en) * 2019-05-14 2021-11-16 Infinera Corporation Out-of-band communication channel for sub-carrier-based optical communication systems
US11489613B2 (en) 2019-05-14 2022-11-01 Infinera Corporation Out-of-band communication channel for subcarrier-based optical communication systems
US11476966B2 (en) 2019-05-14 2022-10-18 Infinera Corporation Out-of-band communication channel for subcarrier-based optical communication systems
US11190291B2 (en) 2019-05-14 2021-11-30 Infinera Corporation Out-of-band communication channel for subcarrier-based optical communication systems
US11470019B2 (en) 2019-09-05 2022-10-11 Infinera Corporation Dynamically switching queueing schemes for network switches
US12580673B2 (en) 2019-09-20 2026-03-17 Infinera Corporation Optical communication system transmitting and receiving optical subcarriers having different spectral widths and/or power values
US11743621B2 (en) 2019-10-10 2023-08-29 Infinera Corporation Network switches systems for optical communications networks
US12081269B2 (en) 2019-10-10 2024-09-03 Infinera Corporation Hub-leaf laser synchronization
CA3157060A1 (fr) 2019-10-10 2021-04-15 Infinera Corporation Protection et restauration a double trajet de sous-porteuse optique pour reseaux de communication optique

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FR2537810A1 (fr) * 1982-12-14 1984-06-15 Thomson Csf Poste telephonique a ecoute amplifiee muni d'un dispositif antilarsen
JP2502750B2 (ja) * 1989-06-07 1996-05-29 国際電信電話株式会社 光中継器のレベル制御方式
JPH0414917A (ja) * 1990-05-09 1992-01-20 Fujitsu Ltd 光中継伝送方式
GB2280561B (en) 1993-07-31 1997-03-26 Northern Telecom Ltd Optical transmission system
US5513029A (en) * 1994-06-16 1996-04-30 Northern Telecom Limited Method and apparatus for monitoring performance of optical transmission systems
CA2155693C (fr) * 1994-08-25 1999-12-14 Daniel A. Fishman Methode et dispositif de controle de systemes de transmission optique et de localisation de defaillance
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JP3588984B2 (ja) * 1997-08-20 2004-11-17 Ｋｄｄｉ株式会社 光パワー計測システム並びにそのための端局及び中継器
JP3884841B2 (ja) 1997-11-14 2007-02-21 株式会社日立コミュニケーションテクノロジー 光伝送システム及び光通信装置
DE69838127T2 (de) * 1998-01-27 2008-05-15 Lucent Technologies Inc. Verfahren und Vorrichtung zur Steuerung der optischen Verstärkung in einer optischen Wellenlängenmultiplexübertragung
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
JP3102410B2 (ja) * 1998-05-18 2000-10-23 日本電気株式会社 光スイッチ
JP3527671B2 (ja) 1999-04-23 2004-05-17 富士通株式会社 ラマン増幅による光伝送パワーの波長特性制御方法、並びに、それを用いた波長多重光通信システムおよび光増幅器
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
JP2002076482A (ja) * 2000-08-31 2002-03-15 Fujitsu Ltd 光増幅器，光増幅方法及び光増幅システム
US6735395B1 (en) * 2000-09-29 2004-05-11 Futurewei Technologies, Inc. WDM communication system utilizing WDM optical sources with stabilized wavelengths and light intensity and method for stabilization thereof

Also Published As

Publication number Publication date
FR2828035A1 (fr) 2003-01-31
JP4651231B2 (ja) 2011-03-16
GB2379815A (en) 2003-03-19
GB2379815B (en) 2004-10-27
JP2003037562A (ja) 2003-02-07
US7031618B2 (en) 2006-04-18
US20030020995A1 (en) 2003-01-30
GB0202560D0 (en) 2002-03-20

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Year of fee payment: 15

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Year of fee payment: 16

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Effective date: 20181031