DK0576508T3 - Fotonforstærker - Google Patents

Fotonforstærker

Info

Publication number
DK0576508T3
DK0576508T3 DK92906790.8T DK92906790T DK0576508T3 DK 0576508 T3 DK0576508 T3 DK 0576508T3 DK 92906790 T DK92906790 T DK 92906790T DK 0576508 T3 DK0576508 T3 DK 0576508T3
Authority
DK
Denmark
Prior art keywords
pct
default
amplifier
amplifiers
control tone
Prior art date
Application number
DK92906790.8T
Other languages
Danish (da)
English (en)
Inventor
John Cameron Mackichan
Original Assignee
British Telecomm
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 British Telecomm filed Critical British Telecomm
Application granted granted Critical
Publication of DK0576508T3 publication Critical patent/DK0576508T3/da

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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • 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
    • 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
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07955—Monitoring or measuring power

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Amplifiers (AREA)
  • Lasers (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
DK92906790.8T 1991-03-22 1992-03-23 Fotonforstærker DK0576508T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919106181A GB9106181D0 (en) 1991-03-22 1991-03-22 Photonic amplifier

Publications (1)

Publication Number Publication Date
DK0576508T3 true DK0576508T3 (da) 1998-04-14

Family

ID=10692076

Family Applications (1)

Application Number Title Priority Date Filing Date
DK92906790.8T DK0576508T3 (da) 1991-03-22 1992-03-23 Fotonforstærker

Country Status (11)

Country Link
US (1) US5461497A (ja)
EP (1) EP0576508B1 (ja)
JP (1) JP3169609B2 (ja)
AT (1) ATE158454T1 (ja)
AU (1) AU661298B2 (ja)
CA (1) CA2104212C (ja)
DE (1) DE69222297T2 (ja)
DK (1) DK0576508T3 (ja)
ES (1) ES2108108T3 (ja)
GB (1) GB9106181D0 (ja)
WO (1) WO1992017008A1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3320452B2 (ja) * 1992-07-15 2002-09-03 沖電気工業株式会社 光中継器の監視制御方式
US5532864A (en) * 1995-06-01 1996-07-02 Ciena Corporation Optical monitoring channel for wavelength division multiplexed optical communication system
WO2001082516A1 (en) * 2000-04-24 2001-11-01 Lucent Technologies Inc. Gain equalization in dwdm networks
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
US6690916B1 (en) * 2000-10-10 2004-02-10 Motorola, Inc. Radio network for radio communication in an enclosed environment and a repeater for such a radio network
JP2002198598A (ja) * 2000-12-22 2002-07-12 Nec Corp 光増幅利得制御回路および光増幅利得制御方法
US6647466B2 (en) * 2001-01-25 2003-11-11 Hewlett-Packard Development Company, L.P. Method and apparatus for adaptively bypassing one or more levels of a cache hierarchy
US6636345B2 (en) * 2001-02-27 2003-10-21 Corning Incorporated Optical fiber pumping system
SG119197A1 (en) * 2003-08-26 2006-02-28 St Microelectronics Asia A method and system for frequency offset estimation
JP4198082B2 (ja) * 2004-03-24 2008-12-17 富士通株式会社 光増幅器の利得モニタ方法および装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5523612A (en) * 1978-08-07 1980-02-20 Kokusai Denshin Denwa Co Ltd <Kdd> Detection system of faulty position of optical fiber transmission system
JPS5775040A (en) * 1980-10-28 1982-05-11 Fujitsu Ltd Supervisory system for optical communication loop network
DE68910851T2 (de) * 1988-03-04 1994-05-05 British Telecomm Verstärkung von optischen Signalen.
JPH0712230B2 (ja) * 1988-07-18 1995-02-08 富士通株式会社 光交換システム
GB2230912B (en) * 1989-04-22 1993-10-20 Stc Plc Optical amplifier gain control

Also Published As

Publication number Publication date
ATE158454T1 (de) 1997-10-15
WO1992017008A1 (en) 1992-10-01
EP0576508B1 (en) 1997-09-17
CA2104212C (en) 1998-07-07
US5461497A (en) 1995-10-24
GB9106181D0 (en) 1991-05-08
DE69222297D1 (de) 1997-10-23
AU661298B2 (en) 1995-07-20
DE69222297T2 (de) 1998-01-15
EP0576508A1 (en) 1994-01-05
JP3169609B2 (ja) 2001-05-28
ES2108108T3 (es) 1997-12-16
AU1415492A (en) 1992-10-21
CA2104212A1 (en) 1992-09-23
JPH06506094A (ja) 1994-07-07

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