CN1620769A - 用于信号传输的方法和设备 - Google Patents
用于信号传输的方法和设备 Download PDFInfo
- Publication number
- CN1620769A CN1620769A CN02828030.XA CN02828030A CN1620769A CN 1620769 A CN1620769 A CN 1620769A CN 02828030 A CN02828030 A CN 02828030A CN 1620769 A CN1620769 A CN 1620769A
- Authority
- CN
- China
- Prior art keywords
- signal
- length
- signals
- pump
- wavelength
- 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.)
- Granted
Links
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
- H04B10/296—Transient power control, e.g. due to channel add/drop or rapid fluctuations in the input power
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Abstract
Description
Claims (17)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0129717.5 | 2001-12-12 | ||
GBGB0129717.5A GB0129717D0 (en) | 2001-12-12 | 2001-12-12 | A method and an apparatus for signal transmission |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1620769A true CN1620769A (zh) | 2005-05-25 |
CN100403666C CN100403666C (zh) | 2008-07-16 |
Family
ID=9927474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB02828030XA Expired - Fee Related CN100403666C (zh) | 2001-12-12 | 2002-11-27 | 用于信号传输的方法和设备 |
Country Status (10)
Country | Link |
---|---|
US (1) | US7174097B2 (zh) |
EP (1) | EP1456977B1 (zh) |
JP (1) | JP2005512453A (zh) |
CN (1) | CN100403666C (zh) |
AT (1) | ATE302508T1 (zh) |
AU (1) | AU2002343102A1 (zh) |
CA (1) | CA2468498A1 (zh) |
DE (1) | DE60205663T2 (zh) |
GB (1) | GB0129717D0 (zh) |
WO (1) | WO2003050981A2 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112311344A (zh) * | 2019-07-31 | 2021-02-02 | 硅谷实验室公司 | 隔离器产品的接收机中间可变增益级 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4679651B2 (ja) * | 2008-09-19 | 2011-04-27 | 富士通株式会社 | ラマン増幅器およびその制御方法 |
US8477411B2 (en) * | 2009-07-17 | 2013-07-02 | Cisco Technology, Inc. | Fiber-adaptive distributed Raman amplifier pump setup scheme |
US9300110B2 (en) | 2013-09-26 | 2016-03-29 | Cisco Technology, Inc. | Multi-wavelength distributed raman amplification set-up |
US9455546B2 (en) | 2015-01-21 | 2016-09-27 | Cisco Technology, Inc. | Raman-based static and dynamic tilt control in an optical system |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5867305A (en) | 1996-01-19 | 1999-02-02 | Sdl, Inc. | Optical amplifier with high energy levels systems providing high peak powers |
JP3923150B2 (ja) * | 1997-10-16 | 2007-05-30 | 日本テキサス・インスツルメンツ株式会社 | 周波数シンセサイザ |
JPH11121839A (ja) | 1997-10-17 | 1999-04-30 | Fujitsu Ltd | 光増幅用ファイバ及び光ファイバ増幅器 |
KR19990069330A (ko) | 1998-02-06 | 1999-09-06 | 윤종용 | 채널당 출력파워가 일정한 광증폭기 및 이를위한 방법 |
US6344922B1 (en) * | 1998-07-21 | 2002-02-05 | Corvis Corporation | Optical signal varying devices |
US6356383B1 (en) * | 1999-04-02 | 2002-03-12 | Corvis Corporation | Optical transmission systems including optical amplifiers apparatuses and methods |
US6587261B1 (en) | 1999-05-24 | 2003-07-01 | Corvis Corporation | Optical transmission systems including optical amplifiers and methods of use therein |
JP4628523B2 (ja) * | 2000-06-13 | 2011-02-09 | 富士通株式会社 | 光ファイバ伝送路の特性を評価するための方法、装置及びシステム |
US6724524B1 (en) | 2000-08-18 | 2004-04-20 | Corning Incorporated | Gain control in Raman amplifiers |
US6417958B1 (en) * | 2001-01-24 | 2002-07-09 | Lucent Technologies Inc. | WDM optical communication system using co-propagating Raman amplification |
US6433922B1 (en) * | 2001-02-26 | 2002-08-13 | Redc Optical Networks Ltd. | Apparatus and method for a self adjusting Raman amplifier |
US6850360B1 (en) * | 2001-04-16 | 2005-02-01 | Bookham, Inc. | Raman amplifier systems with diagnostic capabilities |
US6456426B1 (en) * | 2001-06-28 | 2002-09-24 | Onetta, Inc. | Raman amplifiers with modulated pumps |
JP4647147B2 (ja) * | 2001-07-16 | 2011-03-09 | 富士通株式会社 | ラマン増幅を用いた光伝送方法および光伝送システム |
JP4651231B2 (ja) * | 2001-07-26 | 2011-03-16 | 富士通株式会社 | 光伝送システム |
DE60132639D1 (de) * | 2001-12-27 | 2008-03-13 | Pirelli Submarine Telecom Systems Italia Spa | Optisches übertragungssystem mit raman-verstärkern und einem überwachungssystem |
EP1349242A1 (en) * | 2002-03-27 | 2003-10-01 | Alcatel | Raman fiber amplification stage; optical system and method to control the raman amplification stage |
US6963681B2 (en) * | 2002-07-01 | 2005-11-08 | Jds Uniphase Corporation | Automatic raman gain control |
JP4205959B2 (ja) * | 2003-01-21 | 2009-01-07 | 富士通株式会社 | 中継装置およびラマン増幅中継システム |
-
2001
- 2001-12-12 GB GBGB0129717.5A patent/GB0129717D0/en not_active Ceased
-
2002
- 2002-11-27 AT AT02779764T patent/ATE302508T1/de not_active IP Right Cessation
- 2002-11-27 DE DE60205663T patent/DE60205663T2/de not_active Expired - Lifetime
- 2002-11-27 AU AU2002343102A patent/AU2002343102A1/en not_active Abandoned
- 2002-11-27 WO PCT/GB2002/005328 patent/WO2003050981A2/en active IP Right Grant
- 2002-11-27 CN CNB02828030XA patent/CN100403666C/zh not_active Expired - Fee Related
- 2002-11-27 US US10/498,606 patent/US7174097B2/en not_active Expired - Fee Related
- 2002-11-27 CA CA002468498A patent/CA2468498A1/en not_active Abandoned
- 2002-11-27 EP EP02779764A patent/EP1456977B1/en not_active Expired - Lifetime
- 2002-11-27 JP JP2003551927A patent/JP2005512453A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112311344A (zh) * | 2019-07-31 | 2021-02-02 | 硅谷实验室公司 | 隔离器产品的接收机中间可变增益级 |
Also Published As
Publication number | Publication date |
---|---|
DE60205663D1 (de) | 2005-09-22 |
AU2002343102A8 (en) | 2003-06-23 |
ATE302508T1 (de) | 2005-09-15 |
WO2003050981A3 (en) | 2003-09-18 |
CN100403666C (zh) | 2008-07-16 |
EP1456977B1 (en) | 2005-08-17 |
JP2005512453A (ja) | 2005-04-28 |
CA2468498A1 (en) | 2003-06-19 |
AU2002343102A1 (en) | 2003-06-23 |
GB0129717D0 (en) | 2002-01-30 |
EP1456977A2 (en) | 2004-09-15 |
DE60205663T2 (de) | 2006-04-20 |
WO2003050981A2 (en) | 2003-06-19 |
US7174097B2 (en) | 2007-02-06 |
US20050117202A1 (en) | 2005-06-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: M(DGPI) CO., LTD. Free format text: FORMER OWNER: MARCONI UK INTELLECTUAL PROP Effective date: 20070202 Owner name: L.M. ERICSSON CO., LTD. Free format text: FORMER OWNER: M(DGPI) CO., LTD. Effective date: 20070202 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20070202 Address after: Stockholm, Sweden Applicant after: ERICSSON AB Address before: Coventry, United Kingdom Applicant before: M (DGPI) Ltd. Effective date of registration: 20070202 Address after: Coventry, United Kingdom Applicant after: M (DGPI) Ltd. Address before: Coventry, United Kingdom Applicant before: MARCONI UK INTELLECTUAL PROPERTY Ltd. |
|
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: 20080716 Termination date: 20151127 |
|
EXPY | Termination of patent right or utility model |