SE9703000D0 - Optical amplifier control - Google Patents

Optical amplifier control

Info

Publication number
SE9703000D0
SE9703000D0 SE9703000A SE9703000A SE9703000D0 SE 9703000 D0 SE9703000 D0 SE 9703000D0 SE 9703000 A SE9703000 A SE 9703000A SE 9703000 A SE9703000 A SE 9703000A SE 9703000 D0 SE9703000 D0 SE 9703000D0
Authority
SE
Sweden
Prior art keywords
optical amplifier
amplifier
amplifier control
node
control
Prior art date
Application number
SE9703000A
Other languages
English (en)
Swedish (sv)
Inventor
Nigel Wood
Tomas Askinger
Bengt Johansson
Original Assignee
Ericsson Telefon Ab L M
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
Publication of SE9703000D0 publication Critical patent/SE9703000D0/xx
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9703000A priority Critical patent/SE9703000D0/xx
Priority to US09/530,178 priority patent/US6643055B1/en
Priority to JP2000517502A priority patent/JP4302881B2/ja
Priority to AU94695/98A priority patent/AU9469598A/en
Priority to AT98948034T priority patent/ATE274769T1/de
Priority to CNB988104229A priority patent/CN1187911C/zh
Priority to DE69825913T priority patent/DE69825913T2/de
Priority to EP98948034A priority patent/EP1025659B1/de
Priority to PCT/SE1998/001795 priority patent/WO1999021302A1/en
Priority to BRPI9813874-0B1A priority patent/BR9813874B1/pt

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
    • H04B10/2939—Network aspects
    • 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
    • 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
    • H04B10/298—Two-way repeaters, i.e. repeaters amplifying separate upward and downward lines
    • 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
    • H04B—TRANSMISSION
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/003—Devices including multiple stages, e.g., multi-stage optical amplifiers or dispersion compensators

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Led Devices (AREA)
  • Lasers (AREA)
  • Semiconductor Lasers (AREA)
SE9703000A 1997-10-21 1997-10-21 Optical amplifier control SE9703000D0 (sv)

Priority Applications (10)

Application Number Priority Date Filing Date Title
SE9703000A SE9703000D0 (sv) 1997-10-21 1997-10-21 Optical amplifier control
US09/530,178 US6643055B1 (en) 1997-10-21 1998-10-05 Optical amplifier control
JP2000517502A JP4302881B2 (ja) 1997-10-21 1998-10-05 光増幅器の制御
AU94695/98A AU9469598A (en) 1997-10-21 1998-10-05 Optical amplifier control
AT98948034T ATE274769T1 (de) 1997-10-21 1998-10-05 Kontrolle eines optischen verstärker
CNB988104229A CN1187911C (zh) 1997-10-21 1998-10-05 光放大器的控制
DE69825913T DE69825913T2 (de) 1997-10-21 1998-10-05 Kontrolle eines optischen verstärker
EP98948034A EP1025659B1 (de) 1997-10-21 1998-10-05 Kontrolle eines optischen verstärker
PCT/SE1998/001795 WO1999021302A1 (en) 1997-10-21 1998-10-05 Optical amplifier control
BRPI9813874-0B1A BR9813874B1 (pt) 1997-10-21 1998-10-05 Processo para controlar a potência de saída de um amplificador ótico em um nó em uma rede, nó em uma rede e rede compreendendo pelo menos dois nós

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9703000A SE9703000D0 (sv) 1997-10-21 1997-10-21 Optical amplifier control

Publications (1)

Publication Number Publication Date
SE9703000D0 true SE9703000D0 (sv) 1997-08-20

Family

ID=20407983

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9703000A SE9703000D0 (sv) 1997-10-21 1997-10-21 Optical amplifier control

Country Status (10)

Country Link
US (1) US6643055B1 (de)
EP (1) EP1025659B1 (de)
JP (1) JP4302881B2 (de)
CN (1) CN1187911C (de)
AT (1) ATE274769T1 (de)
AU (1) AU9469598A (de)
BR (1) BR9813874B1 (de)
DE (1) DE69825913T2 (de)
SE (1) SE9703000D0 (de)
WO (1) WO1999021302A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE512370C2 (sv) 1998-07-03 2000-03-06 Ericsson Telefon Ab L M Anordning och förfarande för att uppskatta total bruseffekt
US6961524B1 (en) * 2000-09-22 2005-11-01 Nortel Networks Limited WDM channel equalization in add/drop-capable optical networks
US6804464B2 (en) * 2000-11-01 2004-10-12 Dowslake Microsystems Corporation Flexible and low cost wavelength management for optical networking
US7106969B1 (en) * 2001-02-12 2006-09-12 Atrica Israel Ltd. Optical network terminator
GB2372388A (en) * 2001-02-17 2002-08-21 Marconi Comm Ltd Using token passing to control power in a WDM communication system
IL145262A0 (en) * 2001-09-04 2002-06-30 Lightscape Networks Ltd Method and system for channel count and power control in optical networks
FR2829328B1 (fr) * 2001-09-06 2004-10-22 Cit Alcatel Methode et systeme assurant la protection de la transmission de donnees sur un anneau optique forme d'une seule fibre optique
US7116905B2 (en) * 2002-03-27 2006-10-03 Fujitsu Limited Method and system for control signaling in an open ring optical network
IL153941A (en) 2003-01-14 2008-06-05 Eci Telecom Ltd Technique for power control in optical networks
US7587139B1 (en) 2003-05-12 2009-09-08 Cisco Technology, Inc. Optical channel power control in WDM networks
US7027210B2 (en) * 2003-05-29 2006-04-11 Fujitsu Limited Method and system for determining gain for an optical signal
JP4167630B2 (ja) * 2004-07-09 2008-10-15 富士通株式会社 光波長多重伝送システムにおける偏波モード分散補償装置および方法
IL181135A (en) * 2007-02-01 2012-04-30 Eci Telecom Ltd Method, device and system for managing optical communication networks

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4991229A (en) 1989-04-03 1991-02-05 Honeywell Inc. Optical transmitter power measurement and control
JP2787820B2 (ja) * 1990-07-20 1998-08-20 キヤノン株式会社 波長多重光通信システム及びそこで用いられる光増幅装置
US5374973A (en) 1993-09-21 1994-12-20 Alcatel Network Systems, Inc. Optical amplifier
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
GB9516017D0 (en) 1995-08-04 1995-10-04 Stc Submarine Systems Ltd Optical level control in wavelength add-drop multiplexing branching units
JP2871547B2 (ja) * 1995-09-08 1999-03-17 日本電気株式会社 光スペクトルアナライザ装置および光増幅器の制御方法
AU2252697A (en) * 1996-01-30 1997-08-22 Ditech Corporation Input and output monitored amplifier
JP2910667B2 (ja) * 1996-04-09 1999-06-23 日本電気株式会社 線形中継光増幅伝送装置
JPH09321701A (ja) * 1996-05-31 1997-12-12 Fujitsu Ltd 光通信システム及び光増幅器
JPH09326770A (ja) * 1996-06-06 1997-12-16 Nec Corp 波長分割多重伝送システムに用いられる線形中継器
JP2904131B2 (ja) * 1996-07-04 1999-06-14 日本電気株式会社 波長多重光増幅装置と波長多重光伝送装置
JP3006500B2 (ja) * 1996-08-01 2000-02-07 日本電気株式会社 波長多重光伝送用光増幅装置
US5699081A (en) * 1996-09-26 1997-12-16 Lucent Technologies Inc. Apparatus and method for automatically provisioning power on a per channel basis in a communications transmission system
JP2991131B2 (ja) * 1996-10-07 1999-12-20 日本電気株式会社 信号光チャネル数計数器とこれを用いた光増幅装置

Also Published As

Publication number Publication date
AU9469598A (en) 1999-05-10
JP4302881B2 (ja) 2009-07-29
DE69825913D1 (de) 2004-09-30
BR9813874B1 (pt) 2013-12-31
CN1276935A (zh) 2000-12-13
DE69825913T2 (de) 2005-01-20
US6643055B1 (en) 2003-11-04
CN1187911C (zh) 2005-02-02
EP1025659A1 (de) 2000-08-09
JP2001521321A (ja) 2001-11-06
BR9813874A (pt) 2000-09-26
WO1999021302A1 (en) 1999-04-29
ATE274769T1 (de) 2004-09-15
EP1025659B1 (de) 2004-08-25

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