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 variablesInfo
- 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
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)
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) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0129717D0 (en) * | 2001-12-12 | 2002-01-30 | Marconi Comm Ltd | A method and an apparatus for signal transmission |
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 |
EP3136623A4 (fr) * | 2014-05-14 | 2017-04-26 | Huawei Marine Networks Co., Limited | Répéteur optique et système de communication par fibres optiques |
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 |
US11223427B2 (en) * | 2017-03-17 | 2022-01-11 | Nec Corporation | Optical submarine cable system and optical submarine relay apparatus |
US11251878B2 (en) | 2018-02-07 | 2022-02-15 | Infinera Corporation | Independently routable digital subcarriers 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 |
US11483066B2 (en) | 2019-03-04 | 2022-10-25 | 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 |
US11032020B2 (en) | 2019-04-19 | 2021-06-08 | Infiriera Corporation | Synchronization for subcarrier communication |
US11838105B2 (en) | 2019-05-07 | 2023-12-05 | Infinera Corporation | Bidirectional optical communications |
US11239935B2 (en) * | 2019-05-14 | 2022-02-01 | 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 |
US11476966B2 (en) | 2019-05-14 | 2022-10-18 | Infinera Corporation | Out-of-band communication channel for subcarrier-based optical communication systems |
US11095374B2 (en) | 2019-05-14 | 2021-08-17 | Infinera Corporation | Out-of-band communication channel for sub-carrier-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 |
US11489613B2 (en) | 2019-05-14 | 2022-11-01 | Infinera Corporation | Out-of-band communication channel for subcarrier-based optical communication systems |
US11297005B2 (en) | 2019-09-05 | 2022-04-05 | Infiriera Corporation | Dynamically switching queueing schemes for network switches |
CA3157806A1 (fr) | 2019-10-10 | 2021-04-15 | Infinera Corporation | Systemes de commutateurs de reseaux pour reseaux de communications optiques |
US11356180B2 (en) | 2019-10-10 | 2022-06-07 | Infinera Corporation | Hub-leaf laser synchronization |
EP4042606A1 (fr) | 2019-10-10 | 2022-08-17 | Infinera Corporation | Protection et restauration à double trajet de sous-porteuse optique pour réseaux de communication optique |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JPH0964819A (ja) * | 1995-08-23 | 1997-03-07 | Fujitsu Ltd | 光システム |
US5710659A (en) | 1995-12-19 | 1998-01-20 | Lucent Technologies Inc. | Low tilt, high gain fiber amplifier |
JPH09185091A (ja) | 1995-12-28 | 1997-07-15 | Nec Corp | 波長多重光伝送装置 |
JP3720112B2 (ja) * | 1996-03-18 | 2005-11-24 | 富士通株式会社 | 波長分割多重が適用されるシステム及び光パワー制御装置 |
JPH09321701A (ja) * | 1996-05-31 | 1997-12-12 | Fujitsu Ltd | 光通信システム及び光増幅器 |
KR100219719B1 (ko) | 1997-07-15 | 1999-09-01 | 윤종용 | 감시가능한 파장분할다중화 광증폭기 제어시스템 및 그 제어방법 |
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 |
-
2001
- 2001-07-26 JP JP2001226087A patent/JP4651231B2/ja not_active Expired - Fee Related
-
2002
- 2002-01-28 US US10/056,080 patent/US7031618B2/en not_active Expired - Lifetime
- 2002-02-04 GB GB0202560A patent/GB2379815B/en not_active Expired - Fee Related
- 2002-02-22 FR FR0202269A patent/FR2828035B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB0202560D0 (en) | 2002-03-20 |
FR2828035A1 (fr) | 2003-01-31 |
US7031618B2 (en) | 2006-04-18 |
US20030020995A1 (en) | 2003-01-30 |
GB2379815B (en) | 2004-10-27 |
JP2003037562A (ja) | 2003-02-07 |
JP4651231B2 (ja) | 2011-03-16 |
GB2379815A (en) | 2003-03-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 15 |
|
PLFP | Fee payment |
Year of fee payment: 16 |
|
ST | Notification of lapse |
Effective date: 20181031 |