JP4464959B2 - 分散補償方法及び分散補償装置 - Google Patents
分散補償方法及び分散補償装置 Download PDFInfo
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- JP4464959B2 JP4464959B2 JP2006510127A JP2006510127A JP4464959B2 JP 4464959 B2 JP4464959 B2 JP 4464959B2 JP 2006510127 A JP2006510127 A JP 2006510127A JP 2006510127 A JP2006510127 A JP 2006510127A JP 4464959 B2 JP4464959 B2 JP 4464959B2
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- wavelength
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- dispersion
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- 239000006185 dispersion Substances 0.000 title claims description 154
- 238000000034 method Methods 0.000 title claims description 44
- 230000005540 biological transmission Effects 0.000 claims description 46
- 238000012937 correction Methods 0.000 claims description 35
- 230000007423 decrease Effects 0.000 claims description 30
- 230000003247 decreasing effect Effects 0.000 claims description 15
- 230000003287 optical effect Effects 0.000 description 122
- 239000000835 fiber Substances 0.000 description 24
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 230000003321 amplification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 3
- 230000009022 nonlinear effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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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
- H04B10/2933—Signal power control considering the whole optical path
- H04B10/2935—Signal power control considering the whole optical path with a cascade of 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
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
- H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
- H04B10/25133—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion including a lumped electrical or optical dispersion compensator
-
- 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
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
- H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
- H04B10/2525—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion using dispersion-compensating fibres
- H04B10/25253—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion using dispersion-compensating fibres with dispersion management, i.e. using a combination of different kind of fibres in the transmission system
-
- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
Description
波長多重信号のパワーのゲインを一定とする自動ゲイン制御に切替えて多重する波長の増減設を行い、
前記多重する波長の増減設を行ったのち、前記多重する波長の増減設に基づき分散補償量を変化させ、
前記分散補償量を変化させたことによるASE変動分を算出し、
前記ASE変動分を前記ASE補正値に反映して自動レベル制御に切替えるよう構成する。
11、14,16,17 伝送路フィアバ
12、15 中継装置
18 受信装置
21,23 光アンプ
22 可変分散補償器
24 制御部
Claims (7)
- 多重する波長数に応じた目標出力パワーとASE補正値で自動レベル制御を行い波長多重信号の出力パワーを一定とする波長分割多重伝送システムの分散補償方法において、
波長多重信号のパワーのゲインを一定とする自動ゲイン制御に切替えて多重する波長の増減設を行い、
前記多重する波長の増減設を行ったのち、前記多重する波長の増減設に基づき分散補償量を変化させ、
前記分散補償量を変化させたことによるASE変動分を算出し、
前記ASE変動分を前記ASE補正値に反映して自動レベル制御に切替える分散補償方法。 - 多重する波長数に応じた目標出力パワーとASE補正値で自動レベル制御を行い波長多重信号の出力パワーを一定とする波長分割多重伝送システムの分散補償方法において、
波長多重信号のパワーのゲインを一定とする自動ゲイン制御に切替えて多重する波長の増減設に基づき分散補償量を変化させ、
前記分散補償量を変化させたことによるASE変動分を算出し、
前記ASE変動分を算出したのち、前記自動ゲイン制御にて前記多重する波長の増減設を行い、
前記ASE変動分を前記ASE補正値に反映して自動レベル制御に切替える分散補償方法。 - 多重する波長数に応じた目標出力パワーとASE補正値で自動レベル制御を行い波長多重信号の出力パワーを一定とする波長分割多重伝送システムの分散補償装置において、
波長多重信号のパワーのゲインを一定とする自動ゲイン制御に切替えて多重する波長の増減設を行う波長増減設手段と、
前記波長増減設手段で多重する波長の増減設を行ったのち、前記多重する波長の増減設に基づき分散補償量を可変とする分散補償量可変手段と、
前記分散補償量可変手段で前記分散補償量を変化させたことによるASE変動分を算出するASE変動分算出手段と、
前記ASE変動分を前記ASE補正値に反映して自動レベル制御に切替えるASE変動分反映手段を有する分散補償装置。 - 多重する波長数に応じた目標出力パワーとASE補正値で自動レベル制御を行い波長多重信号の出力パワーを一定とする波長分割多重伝送システムの分散補償装置において、
波長多重信号のパワーのゲインを一定とする自動ゲイン制御に切替えて多重する波長の増減設に基づき分散補償量を可変とする分散補償量可変手段と、
前記分散補償量可変手段で前記分散補償量を変化させたことによるASE変動分を算出するASE変動分算出手段と、
前記ASE変動分算出手段でASE変動分を算出したのち、前記自動ゲイン制御にて前記多重する波長の増減設を行う波長増減設手段と、
前記ASE変動分を前記ASE補正値に反映して自動レベル制御に切替えるASE変動分反映手段を有する分散補償装置。 - 請求項3記載の分散補償装置において、
前記波長増減設手段で多重する波長の増減設を行ったのち、一定期間だけ自動レベル制御に切替え、その後自動ゲイン制御に切替える切替え手段を有する分散補償装置。 - 請求項4記載の分散補償装置において、
前記分散補償量可変手段で多重する波長の増減設に基づき分散補償量の可変を行ったのち、一定期間だけ自動レベル制御に切替え、その後自動ゲイン制御に切替える切替え手段を有する分散補償装置。 - 請求項3乃至6のいずれか記載の分散補償装置において、
前記波長の増減設を1波もしくは少数波長毎に段階的に行う分散補償装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/001980 WO2005081432A1 (ja) | 2004-02-20 | 2004-02-20 | 分散補償方法及び分散補償装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2005081432A1 JPWO2005081432A1 (ja) | 2007-08-02 |
JP4464959B2 true JP4464959B2 (ja) | 2010-05-19 |
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JP2006510127A Expired - Fee Related JP4464959B2 (ja) | 2004-02-20 | 2004-02-20 | 分散補償方法及び分散補償装置 |
Country Status (3)
Country | Link |
---|---|
US (2) | US20060210220A1 (ja) |
JP (1) | JP4464959B2 (ja) |
WO (1) | WO2005081432A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013121084A (ja) * | 2011-12-07 | 2013-06-17 | Fujitsu Ltd | 波長多重伝送装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4464959B2 (ja) * | 2004-02-20 | 2010-05-19 | 富士通株式会社 | 分散補償方法及び分散補償装置 |
JP5304316B2 (ja) * | 2009-02-27 | 2013-10-02 | 富士通株式会社 | 光受信装置および制御装置 |
JP2010206539A (ja) * | 2009-03-03 | 2010-09-16 | Nec Corp | 波長多重光通信装置、波長多重光通信装置の光信号分散補償方法、及びプログラム |
EP2660984B1 (en) * | 2011-12-01 | 2016-03-23 | Huawei Technologies Co., Ltd. | Optical signal compensation device |
WO2023135651A1 (ja) * | 2022-01-11 | 2023-07-20 | 日本電信電話株式会社 | 光受信装置、光受信方法及び光伝送システム |
Family Cites Families (15)
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US6321002B1 (en) * | 1995-05-01 | 2001-11-20 | Hitachi, Ltd. | Optical amplifier, optical transmission equipment, optical transmission system, and method thereof |
GB9618706D0 (en) * | 1996-09-06 | 1996-10-16 | Northern Telecom Ltd | Optical element power control |
EP0828357B1 (en) | 1996-09-06 | 2005-01-26 | Nortel Networks Limited | Optical element power control |
JP3886223B2 (ja) * | 1997-09-11 | 2007-02-28 | 富士通株式会社 | 分散制御方法及び装置 |
US6081360A (en) * | 1997-08-20 | 2000-06-27 | Fujitsu Limited | Method and apparatus for optimizing dispersion in an optical fiber transmission line in accordance with an optical signal power level |
JP3770711B2 (ja) * | 1997-09-11 | 2006-04-26 | 富士通株式会社 | タイミング信号生成装置及び方法 |
US6728026B2 (en) * | 1998-07-14 | 2004-04-27 | Novera Optics, Inc. | Dynamically tunable optical amplifier and fiber optic light source |
US6370300B1 (en) * | 1999-02-18 | 2002-04-09 | Lucent Technologies Inc. | Optical communication system incorporating automatic dispersion compensation modules |
JP3678966B2 (ja) | 2000-02-10 | 2005-08-03 | 日本電信電話株式会社 | 光波長多重伝送方法および光波長多重伝送システム |
US7139478B2 (en) * | 2001-03-15 | 2006-11-21 | Fitel Usa Corp. | Nonlinear device comprising a spectrally broadening fiber |
JP3971197B2 (ja) * | 2002-02-04 | 2007-09-05 | 日本電信電話株式会社 | 波長分散補償器 |
US6985284B2 (en) * | 2002-11-12 | 2006-01-10 | Lucent Technologies Inc. | Method, apparatus and system for controlling power transients in a Raman-amplified optical transmission system |
JP4082992B2 (ja) * | 2002-11-21 | 2008-04-30 | 富士通株式会社 | 光分散モニタ装置および方法、並びに、それを用いた光伝送システム |
US7369777B2 (en) * | 2003-11-20 | 2008-05-06 | General Instrument Corporation | Method and apparatus for automatically adjusting the optical power directed to a dispersion compensating element |
JP4464959B2 (ja) * | 2004-02-20 | 2010-05-19 | 富士通株式会社 | 分散補償方法及び分散補償装置 |
-
2004
- 2004-02-20 JP JP2006510127A patent/JP4464959B2/ja not_active Expired - Fee Related
- 2004-02-20 WO PCT/JP2004/001980 patent/WO2005081432A1/ja active Application Filing
-
2006
- 2006-05-22 US US11/437,803 patent/US20060210220A1/en not_active Abandoned
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2007
- 2007-03-22 US US11/689,946 patent/US7627207B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013121084A (ja) * | 2011-12-07 | 2013-06-17 | Fujitsu Ltd | 波長多重伝送装置 |
Also Published As
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JPWO2005081432A1 (ja) | 2007-08-02 |
US7627207B2 (en) | 2009-12-01 |
WO2005081432A1 (ja) | 2005-09-01 |
US20060210220A1 (en) | 2006-09-21 |
US20070177878A1 (en) | 2007-08-02 |
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