DE60026750D1 - Verfahren, Vorrichtung und System zur Übertragung von optischen Überwachungssignalen - Google Patents
Verfahren, Vorrichtung und System zur Übertragung von optischen ÜberwachungssignalenInfo
- Publication number
- DE60026750D1 DE60026750D1 DE60026750T DE60026750T DE60026750D1 DE 60026750 D1 DE60026750 D1 DE 60026750D1 DE 60026750 T DE60026750 T DE 60026750T DE 60026750 T DE60026750 T DE 60026750T DE 60026750 D1 DE60026750 D1 DE 60026750D1
- Authority
- DE
- Germany
- Prior art keywords
- transmitting optical
- optical supervisory
- supervisory signals
- signals
- transmitting
- 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
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
-
- 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
- H04B10/0775—Performance monitoring and measurement of transmission parameters
-
- 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
- H04B10/297—Bidirectional amplification
- H04B10/2972—Each direction being amplified separately
-
- 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
- H04B2210/078—Monitoring an optical transmission system using a supervisory signal using a separate wavelength
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/25—Distortion or dispersion compensation
- H04B2210/258—Distortion or dispersion compensation treating each wavelength or wavelength band separately
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Lasers (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP07433699A JP3670156B2 (ja) | 1999-03-18 | 1999-03-18 | 監視光信号を伝送するための方法、装置及びシステム |
JP7433699 | 1999-03-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60026750D1 true DE60026750D1 (de) | 2006-05-11 |
DE60026750T2 DE60026750T2 (de) | 2006-11-16 |
Family
ID=13544189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60026750T Expired - Lifetime DE60026750T2 (de) | 1999-03-18 | 2000-01-27 | Verfahren, Vorrichtung und System zur Übertragung von optischen Überwachungssignalen |
Country Status (4)
Country | Link |
---|---|
US (1) | US6292289B1 (de) |
EP (1) | EP1037409B1 (de) |
JP (1) | JP3670156B2 (de) |
DE (1) | DE60026750T2 (de) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6417962B1 (en) * | 1999-07-07 | 2002-07-09 | Corning Incorporated | Optical waveguide amplifier optical service channel accessor device and method of making |
AU769509B2 (en) * | 1999-07-09 | 2004-01-29 | Sumitomo Electric Industries, Ltd. | Optical amplifier and optical amplifying method |
JP2002158636A (ja) * | 2000-03-29 | 2002-05-31 | Hitachi Ltd | 光伝送装置およびその監視システム |
WO2001080466A1 (fr) * | 2000-04-14 | 2001-10-25 | Fujitsu Limited | Emetteur de multiplexage en longueur d'onde et procédé de commande de sortie optique pour l'émetteur de multiplexage en longueur d'onde optique |
WO2002009299A2 (en) * | 2000-07-21 | 2002-01-31 | Sycamore Networks, Inc. | Method and apparatus for extending fiber transmission distance with multiple pre-emphases in optically amplified dwdm system |
JP4647807B2 (ja) * | 2001-03-06 | 2011-03-09 | 富士通株式会社 | 通信システム |
JP2002319898A (ja) * | 2001-04-19 | 2002-10-31 | Nec Corp | 光増幅中継装置、端局、光伝送システムおよびその故障監視方法 |
JP2004531948A (ja) * | 2001-04-30 | 2004-10-14 | ピレリー・サブマリン・テレコム・システムズ・イタリア・ソチエタ・ペル・アツィオーニ | 監視システムを備える光伝送システム |
US6941079B1 (en) | 2001-05-24 | 2005-09-06 | Cisco Technology, Inc. | Optical demultiplexer with multi-channel power control and tilt compensation |
JP4686906B2 (ja) * | 2001-06-04 | 2011-05-25 | 株式会社日立製作所 | 波長多重用光伝送装置 |
JP5226164B2 (ja) * | 2001-06-14 | 2013-07-03 | 富士通株式会社 | 光増幅器 |
JP2003087205A (ja) * | 2001-09-13 | 2003-03-20 | Hitachi Ltd | 光伝送システム |
JP3790455B2 (ja) * | 2001-10-12 | 2006-06-28 | 富士通株式会社 | 光中継器の監視制御方法および監視制御システム |
EP1318621B1 (de) * | 2001-12-10 | 2013-02-13 | Sumitomo Electric Industries, Ltd. | Optischer Verstärker und diesen beinhaltendes optisches Übertragungssystem |
US7064890B2 (en) | 2001-12-10 | 2006-06-20 | Sumitomo Electric Industries, Ltd. | Optical amplifier and optical communication system including the same |
US7725042B2 (en) * | 2002-04-22 | 2010-05-25 | Marvin Ray Young | Automated optical transport system |
US7711271B2 (en) * | 2002-04-30 | 2010-05-04 | Eiselt Michael H | Wave division multiplexed optical transport system utilizing optical circulators to isolate an optical service channel |
WO2004075363A1 (ja) * | 2003-02-20 | 2004-09-02 | Fujitsu Limited | 光伝送のための方法及びシステム |
JP2005051196A (ja) * | 2003-07-15 | 2005-02-24 | Furukawa Electric Co Ltd:The | エルビュームドープ光ファイバ増幅器 |
JP4093937B2 (ja) | 2003-08-21 | 2008-06-04 | 富士通株式会社 | 光伝送システム |
KR100582093B1 (ko) * | 2003-09-02 | 2006-05-22 | 한국전자통신연구원 | 광 전달망 시스템에서의 광 감시 채널 프레이밍 장치 및그 방법 |
DE10349891A1 (de) * | 2003-10-25 | 2005-05-25 | Marconi Communications Gmbh | Optisches Netzwerk und Verstärkerknoten dafür |
JP4294452B2 (ja) * | 2003-11-21 | 2009-07-15 | 富士通株式会社 | 双方向光通信用の光装置 |
JP2005175826A (ja) * | 2003-12-10 | 2005-06-30 | Matsushita Electric Ind Co Ltd | 光ファイバ無線伝送システム、送信装置及び受信装置 |
KR100802825B1 (ko) * | 2004-04-27 | 2008-02-12 | 엘에스전선 주식회사 | E밴드와 기타 대역이 결합된 신호를 전송하기 위한광전송 시스템 |
DE102004037549A1 (de) * | 2004-08-03 | 2006-03-16 | Deutsche Telekom Ag | Vorrichtung zur Erzeugung und Modulation eines hochfrequenten Signals |
JPWO2007034545A1 (ja) * | 2005-09-21 | 2009-03-19 | 富士通株式会社 | 波長多重伝送システムにおける監視制御光伝送方法および波長多重伝送装置 |
JP4707542B2 (ja) * | 2005-11-28 | 2011-06-22 | 富士通株式会社 | 伝送装置 |
WO2008050386A1 (fr) * | 2006-10-23 | 2008-05-02 | Fujitsu Limited | Dispositif d'émission de lumière |
JP4900482B2 (ja) * | 2007-07-03 | 2012-03-21 | 富士通株式会社 | レベル低下検出装置、光増幅装置、およびレベル低下検出方法 |
US7917030B2 (en) * | 2007-12-03 | 2011-03-29 | Buabbud George | Fiber optic communication system with automatic line shutdown/power reduction |
JP5435223B2 (ja) * | 2009-10-13 | 2014-03-05 | 日本電気株式会社 | 波長分割多重伝送装置およびその信号光監視方法 |
JP2012015934A (ja) * | 2010-07-05 | 2012-01-19 | Nec Corp | 光伝送装置、及び、光伝送方法 |
WO2012161083A1 (ja) * | 2011-05-24 | 2012-11-29 | 住友電気工業株式会社 | パルス光源 |
US20150085352A1 (en) * | 2013-09-20 | 2015-03-26 | Alcatel-Lucent Usa Inc. | Optical amplifier for space-division multiplexing |
US10587343B2 (en) | 2016-03-30 | 2020-03-10 | Nec Corporation | Signal loopback circuit and signal loopback method |
JP7135783B2 (ja) | 2018-11-27 | 2022-09-13 | 富士通株式会社 | 伝送システム、伝送装置、及び伝送方法 |
US11057142B1 (en) * | 2020-07-06 | 2021-07-06 | Huawei Technologies Co., Ltd. | Method and system to estimate SRS induced gain change in optical communication networks |
US11569907B2 (en) * | 2020-08-26 | 2023-01-31 | Ciena Corporation | Per-band fault signaling in a multi-band optical transmission system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2951985B2 (ja) | 1990-01-19 | 1999-09-20 | 日本電信電話株式会社 | 光中継器の監視信号転送装置 |
JPH05284114A (ja) | 1992-03-31 | 1993-10-29 | Toshiba Corp | 光中継器監視装置 |
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 |
JPH09321739A (ja) * | 1996-05-29 | 1997-12-12 | Nec Corp | 光アンプ中継伝送システム |
US5914794A (en) * | 1996-12-31 | 1999-06-22 | Mci Communications Corporation | Method of and apparatus for detecting and reporting faults in an all-optical communications system |
-
1999
- 1999-03-18 JP JP07433699A patent/JP3670156B2/ja not_active Expired - Fee Related
-
2000
- 2000-01-27 DE DE60026750T patent/DE60026750T2/de not_active Expired - Lifetime
- 2000-01-27 US US09/492,458 patent/US6292289B1/en not_active Expired - Lifetime
- 2000-01-27 EP EP00101287A patent/EP1037409B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE60026750T2 (de) | 2006-11-16 |
EP1037409A2 (de) | 2000-09-20 |
EP1037409B1 (de) | 2006-03-22 |
US6292289B1 (en) | 2001-09-18 |
EP1037409A3 (de) | 2004-01-02 |
JP2000269902A (ja) | 2000-09-29 |
JP3670156B2 (ja) | 2005-07-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |