CA2328284A1 - System based control of optical amplifier transmission functions - Google Patents

System based control of optical amplifier transmission functions Download PDF

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Publication number
CA2328284A1
CA2328284A1 CA002328284A CA2328284A CA2328284A1 CA 2328284 A1 CA2328284 A1 CA 2328284A1 CA 002328284 A CA002328284 A CA 002328284A CA 2328284 A CA2328284 A CA 2328284A CA 2328284 A1 CA2328284 A1 CA 2328284A1
Authority
CA
Canada
Prior art keywords
adjustment
amplifier
optical amplifier
system based
message
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
Application number
CA002328284A
Other languages
French (fr)
Other versions
CA2328284C (en
Inventor
Dirk Bode
Victor S. Hyun
John G. Israel
Gerard T. Lingner, Iii
Bradley A. Mckay
Prasanna Raghavan Nadhamuni
William A. Thompson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of CA2328284A1 publication Critical patent/CA2328284A1/en
Application granted granted Critical
Publication of CA2328284C publication Critical patent/CA2328284C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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

Abstract

Each of a series of optical amplifiers is arranged such that, in response to detecting particular stimuli occurring at an input or receipt of an adjustment start message from an upstream amplifier, adjusts certain amplifier parameters using small steps and completes the adjustment using large steps if it does not receive the adjustment start message within a predetermined period of time of starting the adjustment in response to detecting the stimuli. If the optical amplifier receives the adjustment start message, then it continues to perform the adjustment and completes the adjustment using large steps when it receives an adjustment done message from the upstream optical amplifier. At that point, the optical amplifier sends an adjustment done message to the next downstream amplifier if it is not the tail-end amplifier.
CA002328284A 1999-12-31 2000-12-11 System based control of optical amplifier transmission functions Expired - Fee Related CA2328284C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/476,595 US6313940B1 (en) 1999-12-31 1999-12-31 System based control of optical amplifier transmission functions
US09/476,595 1999-12-31

Publications (2)

Publication Number Publication Date
CA2328284A1 true CA2328284A1 (en) 2001-06-30
CA2328284C CA2328284C (en) 2005-02-08

Family

ID=23892493

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002328284A Expired - Fee Related CA2328284C (en) 1999-12-31 2000-12-11 System based control of optical amplifier transmission functions

Country Status (6)

Country Link
US (1) US6313940B1 (en)
EP (2) EP1460784B1 (en)
JP (2) JP2001223647A (en)
CN (1) CN1303023A (en)
CA (1) CA2328284C (en)
DE (2) DE60019540T2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6611370B2 (en) * 1999-07-23 2003-08-26 The Furukawa Electric Co., Ltd. Raman amplifier system, apparatus and method for identifying, obtaining and maintaining an arbitrary Raman amplification performance
US6466362B1 (en) * 2000-08-31 2002-10-15 Ciena Corporation Hybrid amplifier and control method herefor that minimizes a noise figure for particular span loss
US6441950B1 (en) * 2000-11-03 2002-08-27 Onetta, Inc. Distributed raman amplifier systems with transient control
JP4188573B2 (en) * 2001-04-09 2008-11-26 株式会社日立製作所 Optical amplifier amplification band expansion method, optical amplifier, and extension unit
WO2002091027A2 (en) * 2001-05-09 2002-11-14 Ciena Corporation Method and system for controlling amplifier power in an optical communications network having add/drop capability
US6600596B2 (en) * 2001-05-09 2003-07-29 Ciena Corporation Method and system for controlling amplifier power in an optical communications network having add/drop capability
US6614589B2 (en) * 2001-05-09 2003-09-02 Ciena Corporation Method and system for controlling amplifier power in an optical communications network
US6757099B2 (en) 2001-08-15 2004-06-29 Pts Corporation Optical power transient control scheme for EDFA amplifiers
US20030067670A1 (en) * 2001-10-04 2003-04-10 Lacra Pavel Dynamic optical spectral control scheme for optical amplifier sites
US7199919B2 (en) * 2002-03-15 2007-04-03 The Furukawa Electric Co., Ltd. Tunable multimode wavelength division multiplex Raman pump and amplifier, and a system, method, and computer program product for controlling tunable Raman pumps, and Raman amplifiers
US6768577B2 (en) 2002-03-15 2004-07-27 Fitel Usa Corp. Tunable multimode laser diode module, tunable multimode wavelength division multiplex raman pump, and amplifier, and a system, method, and computer program product for controlling tunable multimode laser diodes, raman pumps, and raman amplifiers
US6721091B2 (en) * 2002-06-13 2004-04-13 Tyco Telecommunications (Us) Inc. System and method for controlling optical amplifier pumps
JP3934529B2 (en) * 2002-10-30 2007-06-20 富士通株式会社 WDM optical communication system
JP4558425B2 (en) * 2003-09-08 2010-10-06 古河電気工業株式会社 Raman amplifier, excitation source for use in Raman amplifier, method for amplifying optical signal
US7822341B2 (en) * 2006-09-28 2010-10-26 Alcatel-Lucent Usa Inc. Coordination of control operations in an optical network

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4449247A (en) * 1980-07-30 1984-05-15 Harris Corporation Local orderwire facility for fiber optic communication system
JP3320452B2 (en) * 1992-07-15 2002-09-03 沖電気工業株式会社 Monitoring and control method for optical repeaters
JPH09321701A (en) * 1996-05-31 1997-12-12 Fujitsu Ltd Optical communication system and optical amplifier
JPH09321739A (en) * 1996-05-29 1997-12-12 Nec Corp Optical amplifier repeating transmission system

Also Published As

Publication number Publication date
DE60023044D1 (en) 2005-11-10
EP1460784A1 (en) 2004-09-22
EP1113597A3 (en) 2003-09-03
DE60023044T2 (en) 2006-06-22
DE60019540D1 (en) 2005-05-25
DE60019540T2 (en) 2006-02-23
JP2006238493A (en) 2006-09-07
JP4354968B2 (en) 2009-10-28
CA2328284C (en) 2005-02-08
EP1460784B1 (en) 2005-10-05
EP1113597B1 (en) 2005-04-20
EP1113597A2 (en) 2001-07-04
JP2001223647A (en) 2001-08-17
US6313940B1 (en) 2001-11-06
CN1303023A (en) 2001-07-11

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Legal Events

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EEER Examination request
MKLA Lapsed