CN1292506A - 光放大器 - Google Patents
光放大器 Download PDFInfo
- Publication number
- CN1292506A CN1292506A CN001179780A CN00117978A CN1292506A CN 1292506 A CN1292506 A CN 1292506A CN 001179780 A CN001179780 A CN 001179780A CN 00117978 A CN00117978 A CN 00117978A CN 1292506 A CN1292506 A CN 1292506A
- Authority
- CN
- China
- Prior art keywords
- channel
- port
- wave filter
- gain unit
- spectral band
- 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
- 238000012544 monitoring process Methods 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 230000003287 optical effect Effects 0.000 claims abstract description 26
- 238000003780 insertion Methods 0.000 claims abstract description 16
- 230000037431 insertion Effects 0.000 claims abstract description 16
- 230000003595 spectral effect Effects 0.000 claims description 36
- 230000003321 amplification Effects 0.000 claims description 19
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method 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
-
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0213—Groups of channels or wave bands arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0215—Architecture aspects
- H04J14/0219—Modular or upgradable architectures
-
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0209—Multi-stage arrangements, e.g. by cascading multiplexers or demultiplexers
-
- 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
Abstract
Description
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/345,063 US6275331B1 (en) | 1999-06-30 | 1999-06-30 | Optical amplifiers |
US09/345,063 | 1999-06-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1292506A true CN1292506A (zh) | 2001-04-25 |
CN1133095C CN1133095C (zh) | 2003-12-31 |
Family
ID=23353330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN00117978A Expired - Lifetime CN1133095C (zh) | 1999-06-30 | 2000-06-06 | 光放大器,光传输系统及提供光放大器的方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6275331B1 (zh) |
EP (1) | EP1065811B1 (zh) |
JP (1) | JP2001053366A (zh) |
CN (1) | CN1133095C (zh) |
CA (1) | CA2300779C (zh) |
DE (1) | DE60007803T2 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100376998C (zh) * | 2004-06-02 | 2008-03-26 | 韩国电子通信研究院 | 使用增益钳制的光放大器的光传输线监视系统 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6519081B2 (en) | 2000-04-13 | 2003-02-11 | Corning Incorporated | Method of operating a noise-compensating gain controller for an optical amplifier |
US6441950B1 (en) * | 2000-11-03 | 2002-08-27 | Onetta, Inc. | Distributed raman amplifier systems with transient control |
US6535330B1 (en) | 2001-03-31 | 2003-03-18 | Corning Incorporated | Dynamic controller for a multi-channel optical amplifier |
US6556340B1 (en) | 2001-04-06 | 2003-04-29 | Onetta, Inc. | Optical amplifiers and upgrade modules |
US6943937B2 (en) | 2001-05-17 | 2005-09-13 | Avanex Corporation | Optical amplifier performance controller and method of use |
US7116905B2 (en) | 2002-03-27 | 2006-10-03 | Fujitsu Limited | Method and system for control signaling in an open ring optical network |
US7076163B2 (en) | 2002-03-27 | 2006-07-11 | Fujitsu Limited | Method and system for testing during operation of an open ring optical network |
US7231148B2 (en) * | 2002-03-28 | 2007-06-12 | Fujitsu Limited | Flexible open ring optical network and method |
US6842562B2 (en) * | 2002-05-30 | 2005-01-11 | Fujitsu Network Communications, Inc. | Optical add/drop node and method |
IL152193A (en) * | 2002-10-09 | 2008-03-20 | Eci Telecom Ltd | Two stage optical amplifier |
CN100372275C (zh) * | 2004-03-19 | 2008-02-27 | 华为技术有限公司 | 在波分复用系统中传送监控信息的方法及装置 |
US7450851B2 (en) * | 2004-08-27 | 2008-11-11 | Fujitsu Limited | System and method for modularly scalable architecture for optical networks |
JP4759423B2 (ja) * | 2006-03-27 | 2011-08-31 | 富士通株式会社 | 光伝送システム |
US11432434B2 (en) | 2020-12-07 | 2022-08-30 | Ciena Corporation | Apparatus and method for modifying airflow of a network element |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2161612B (en) | 1984-07-11 | 1988-02-03 | Stc Plc | Optical fibre transmission systems |
US5555477A (en) * | 1992-04-08 | 1996-09-10 | Hitachi, Ltd. | Optical transmission system constructing method and system |
WO1995015625A1 (en) * | 1993-12-01 | 1995-06-08 | Williams Telecommunications Group, Inc. | Bidirectional optical amplifier |
US5452124A (en) * | 1994-03-04 | 1995-09-19 | Williams Telecommunications Group, Inc. | Unidirectional amplification for bi-directional transmission using wavelength-division multiplexing |
US5636601A (en) | 1994-06-15 | 1997-06-10 | Honda Giken Kogyo Kabushiki Kaisha | Energization control method, and electromagnetic control system in electromagnetic driving device |
JP3379052B2 (ja) * | 1994-09-26 | 2003-02-17 | 富士通株式会社 | 波長多重光増幅装置及び光波長多重伝送システム及び光波長多重伝送方法 |
JPH0918410A (ja) * | 1995-06-26 | 1997-01-17 | Fujitsu Ltd | 波長多重光通信の監視装置 |
EP0839414A1 (en) | 1995-07-18 | 1998-05-06 | BRITISH TELECOMMUNICATIONS public limited company | Optical communications system |
EP0842574B1 (en) * | 1995-08-04 | 2002-04-03 | Alcatel | Add/drop multiplexer |
JPH0974242A (ja) * | 1995-09-04 | 1997-03-18 | Fujitsu Ltd | 光増幅器 |
US5748363A (en) * | 1995-11-30 | 1998-05-05 | Fitel Inc. | Wavelength dependent crossover system for bi-directional transmission |
US5689594A (en) * | 1995-12-29 | 1997-11-18 | Mci Communications Corp. | Multiple wavelength bidirectional lightwave amplifier |
JPH09321701A (ja) * | 1996-05-31 | 1997-12-12 | Fujitsu Ltd | 光通信システム及び光増幅器 |
US5812306A (en) * | 1996-06-14 | 1998-09-22 | Ciena Corporation | Bidirectional WDM optical communication systems with bidirectional optical amplifiers |
GB9617396D0 (en) | 1996-08-19 | 1996-10-02 | Stc Submarine Systems Ltd | Improvements in or relating to optical add/drop wavelength division multiplex systems |
US5837169A (en) | 1996-11-19 | 1998-11-17 | Northern Telecom Limited | Creation of bragg reflactive gratings in waveguides |
US5945261A (en) | 1996-11-19 | 1999-08-31 | Northern Telecom Limited | Creation of Bragg reflective gratings in waveguides |
JPH10173598A (ja) * | 1996-12-09 | 1998-06-26 | Fujitsu Ltd | 光合分波装置及びこれを用いた光伝送システム |
US6122096A (en) * | 1997-08-29 | 2000-09-19 | Lucent Technologies Inc. | Expandable wavelength-selective and loss-less optical add/drop system |
KR100265792B1 (ko) * | 1997-09-26 | 2000-09-15 | 윤종용 | 파장분할다중전송시스템및그전송방법 |
US6008920A (en) * | 1998-03-11 | 1999-12-28 | Optical Coating Laboratory, Inc. | Multiple channel multiplexer/demultiplexer devices |
US5959749A (en) * | 1998-05-20 | 1999-09-28 | Nortel Networks Corporation | Optical add/drop multiplexer/demultiplexer |
-
1999
- 1999-06-30 US US09/345,063 patent/US6275331B1/en not_active Expired - Lifetime
-
2000
- 2000-03-02 DE DE60007803T patent/DE60007803T2/de not_active Expired - Lifetime
- 2000-03-02 EP EP00200731A patent/EP1065811B1/en not_active Expired - Lifetime
- 2000-03-15 CA CA002300779A patent/CA2300779C/en not_active Expired - Lifetime
- 2000-06-06 CN CN00117978A patent/CN1133095C/zh not_active Expired - Lifetime
- 2000-06-28 JP JP2000194683A patent/JP2001053366A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100376998C (zh) * | 2004-06-02 | 2008-03-26 | 韩国电子通信研究院 | 使用增益钳制的光放大器的光传输线监视系统 |
Also Published As
Publication number | Publication date |
---|---|
CN1133095C (zh) | 2003-12-31 |
EP1065811A2 (en) | 2001-01-03 |
US6275331B1 (en) | 2001-08-14 |
CA2300779C (en) | 2007-09-11 |
CA2300779A1 (en) | 2000-12-30 |
DE60007803D1 (de) | 2004-02-26 |
EP1065811A3 (en) | 2001-02-21 |
DE60007803T2 (de) | 2004-07-01 |
EP1065811B1 (en) | 2004-01-21 |
JP2001053366A (ja) | 2001-02-23 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: NORTEL NETWORKS CO., LTD. Free format text: FORMER NAME OR ADDRESS: NORTHERN NETWORK LTD. |
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CP01 | Change in the name or title of a patent holder |
Address after: Quebec Patentee after: NORTEL NETWORKS Ltd. Address before: Quebec Patentee before: Nottel Networks |
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ASS | Succession or assignment of patent right |
Owner name: HILLNA LUXEMBOURG CO., LTD. Free format text: FORMER OWNER: NORTHERN TELECOM LTD. Effective date: 20101220 |
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C41 | Transfer of patent application or patent right or utility model | ||
C56 | Change in the name or address of the patentee |
Owner name: NORTHERN TELECOM LTD. Free format text: FORMER NAME: NORTEL NETWORKS LTD. |
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COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: QUEBEC, CANADA TO: LUXEMBOURG CITY, GRAND DUCHY OF LUXEMBOURG |
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CP01 | Change in the name or title of a patent holder |
Address after: Quebec Patentee after: NORTEL NETWORKS Ltd. Address before: Quebec Patentee before: NORTEL NETWORKS Ltd. |
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TR01 | Transfer of patent right |
Effective date of registration: 20101220 Address after: Luxemburg, the Grand Duchy of Luxemburg Patentee after: Hilner luxembourg GmbH Address before: Quebec Patentee before: NORTEL NETWORKS Ltd. |
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CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20031231 |