CN100365960C - Wdm通信系统中的光学放大器控制 - Google Patents
Wdm通信系统中的光学放大器控制 Download PDFInfo
- Publication number
- CN100365960C CN100365960C CNB028199251A CN02819925A CN100365960C CN 100365960 C CN100365960 C CN 100365960C CN B028199251 A CNB028199251 A CN B028199251A CN 02819925 A CN02819925 A CN 02819925A CN 100365960 C CN100365960 C CN 100365960C
- Authority
- CN
- China
- Prior art keywords
- wdm
- wave
- wave bands
- amplifier
- input
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 29
- 238000004891 communication Methods 0.000 title claims abstract description 12
- 238000005070 sampling Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 description 14
- 238000001228 spectrum Methods 0.000 description 11
- 239000000835 fiber Substances 0.000 description 6
- 229910052691 Erbium Inorganic materials 0.000 description 4
- 238000012512 characterization method Methods 0.000 description 4
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Images
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
- H04B10/29—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
-
- 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
-
- 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
- H04J14/02216—Power control, e.g. to keep the total optical power constant by gain equalization
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
- Lasers (AREA)
Abstract
Description
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0124258.5A GB0124258D0 (en) | 2001-10-09 | 2001-10-09 | Optical amplifier control in WDM communications systems |
GB0124258.5 | 2001-10-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1565096A CN1565096A (zh) | 2005-01-12 |
CN100365960C true CN100365960C (zh) | 2008-01-30 |
Family
ID=9923519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028199251A Expired - Fee Related CN100365960C (zh) | 2001-10-09 | 2002-09-11 | Wdm通信系统中的光学放大器控制 |
Country Status (9)
Country | Link |
---|---|
US (1) | US20050052731A1 (zh) |
EP (1) | EP1454437B1 (zh) |
JP (1) | JP2005505986A (zh) |
CN (1) | CN100365960C (zh) |
AT (1) | ATE469474T1 (zh) |
CA (1) | CA2460722A1 (zh) |
DE (1) | DE60236540D1 (zh) |
GB (1) | GB0124258D0 (zh) |
WO (1) | WO2003032533A2 (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7423804B2 (en) * | 2004-10-06 | 2008-09-09 | Jds Uniphase Corporation | Spectrally resolved fast monitor |
JP4774846B2 (ja) * | 2005-07-19 | 2011-09-14 | 住友電気工業株式会社 | 光増幅装置およびその制御方法 |
US9225456B2 (en) * | 2013-11-18 | 2015-12-29 | Fujitsu Limited | Post-transient gain control of optical amplifiers |
JP2017073739A (ja) * | 2015-10-09 | 2017-04-13 | 富士通株式会社 | 伝送装置及び光ファイバの接続確認方法 |
JPWO2017085822A1 (ja) * | 2015-11-19 | 2018-06-28 | 三菱電機株式会社 | 光増幅装置 |
US10965373B1 (en) * | 2020-01-06 | 2021-03-30 | Ciena Corporation | Handling band spectrum failures in a C+L band photonic line system |
CN114499673B (zh) * | 2020-11-12 | 2024-07-26 | 莫列斯有限公司 | 光放大器模块及其增益控制方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0944190A2 (en) * | 1998-03-19 | 1999-09-22 | Fujitsu Limited | Gain and signal level adjustments of cascaded optical amplifiers |
EP1037337A1 (en) * | 1998-10-04 | 2000-09-20 | The Furukawa Electric Co., Ltd. | Optical amplifier |
CN1276924A (zh) * | 1998-07-14 | 2000-12-13 | 韩国科学技术院 | 按不同波长能动控制其增益的光放大器及可调谐输出光谱的光纤光源 |
CN1304596A (zh) * | 1999-05-10 | 2001-07-18 | Afc技术公司 | 具有动态增益均衡的输入独立无倾斜宽带放大器 |
CN1310872A (zh) * | 1998-06-19 | 2001-08-29 | 朗迅科技公司 | 掺铒光纤放大器中有中间级衰减器的增益倾斜控制 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3363003B2 (ja) * | 1995-10-03 | 2003-01-07 | 株式会社日立製作所 | 光増幅装置及び光増幅装置を用いた光伝送システム |
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 |
JP3860278B2 (ja) * | 1997-03-13 | 2006-12-20 | 富士通株式会社 | 遠隔励起方式の波長多重光伝送システム |
US6057959A (en) * | 1998-05-22 | 2000-05-02 | Ciena Corporation | Optical amplifier having substantially uniform spectral gain |
JP3903650B2 (ja) * | 1999-06-18 | 2007-04-11 | 住友電気工業株式会社 | 光増幅器および光増幅器制御方法 |
JP3449316B2 (ja) * | 1999-10-04 | 2003-09-22 | 日本電気株式会社 | 光ファイバ増幅装置 |
JP4498509B2 (ja) * | 1999-11-16 | 2010-07-07 | 富士通株式会社 | 波長多重用光アンプの制御装置および制御方法 |
EP1130819A1 (en) * | 2000-03-03 | 2001-09-05 | Telefonaktiebolaget Lm Ericsson | Method and device for determining gain tilt in optical amplifiers with measurement of the total gain |
US6594071B1 (en) * | 2001-10-02 | 2003-07-15 | Xtera Communications, Inc. | Method and apparatus for amplifier control |
-
2001
- 2001-10-09 GB GBGB0124258.5A patent/GB0124258D0/en not_active Ceased
-
2002
- 2002-09-11 US US10/491,256 patent/US20050052731A1/en not_active Abandoned
- 2002-09-11 DE DE60236540T patent/DE60236540D1/de not_active Expired - Lifetime
- 2002-09-11 EP EP02762553A patent/EP1454437B1/en not_active Expired - Lifetime
- 2002-09-11 WO PCT/GB2002/004135 patent/WO2003032533A2/en active Application Filing
- 2002-09-11 CN CNB028199251A patent/CN100365960C/zh not_active Expired - Fee Related
- 2002-09-11 CA CA002460722A patent/CA2460722A1/en not_active Abandoned
- 2002-09-11 AT AT02762553T patent/ATE469474T1/de not_active IP Right Cessation
- 2002-09-11 JP JP2003535372A patent/JP2005505986A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0944190A2 (en) * | 1998-03-19 | 1999-09-22 | Fujitsu Limited | Gain and signal level adjustments of cascaded optical amplifiers |
CN1310872A (zh) * | 1998-06-19 | 2001-08-29 | 朗迅科技公司 | 掺铒光纤放大器中有中间级衰减器的增益倾斜控制 |
CN1276924A (zh) * | 1998-07-14 | 2000-12-13 | 韩国科学技术院 | 按不同波长能动控制其增益的光放大器及可调谐输出光谱的光纤光源 |
EP1037337A1 (en) * | 1998-10-04 | 2000-09-20 | The Furukawa Electric Co., Ltd. | Optical amplifier |
CN1304596A (zh) * | 1999-05-10 | 2001-07-18 | Afc技术公司 | 具有动态增益均衡的输入独立无倾斜宽带放大器 |
Also Published As
Publication number | Publication date |
---|---|
DE60236540D1 (de) | 2010-07-08 |
CN1565096A (zh) | 2005-01-12 |
US20050052731A1 (en) | 2005-03-10 |
ATE469474T1 (de) | 2010-06-15 |
WO2003032533A3 (en) | 2003-10-16 |
JP2005505986A (ja) | 2005-02-24 |
EP1454437A2 (en) | 2004-09-08 |
WO2003032533A2 (en) | 2003-04-17 |
GB0124258D0 (en) | 2001-11-28 |
CA2460722A1 (en) | 2003-04-17 |
EP1454437B1 (en) | 2010-05-26 |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
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ASS | Succession or assignment of patent right |
Owner name: L.M. ERICSSON CO., LTD. Free format text: FORMER OWNER: M(DGPI) CO., LTD. Effective date: 20070209 Owner name: M(DGPI) CO., LTD. Free format text: FORMER OWNER: MARCONI UK INTELLECTUAL PROP Effective date: 20070209 |
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C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20070209 Address after: Stockholm, Sweden Applicant after: ERICSSON AB Address before: Coventry, United Kingdom Applicant before: M (DGPI) Ltd. Effective date of registration: 20070209 Address after: Coventry, United Kingdom Applicant after: M (DGPI) Ltd. Address before: Coventry, United Kingdom Applicant before: MARCONI UK INTELLECTUAL PROPERTY Ltd. |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 Termination date: 20160911 |
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CF01 | Termination of patent right due to non-payment of annual fee |