DE602004022456D1 - Optisches wellenlängen-multiplex-ringnetzwerk - Google Patents

Optisches wellenlängen-multiplex-ringnetzwerk

Info

Publication number
DE602004022456D1
DE602004022456D1 DE602004022456T DE602004022456T DE602004022456D1 DE 602004022456 D1 DE602004022456 D1 DE 602004022456D1 DE 602004022456 T DE602004022456 T DE 602004022456T DE 602004022456 T DE602004022456 T DE 602004022456T DE 602004022456 D1 DE602004022456 D1 DE 602004022456D1
Authority
DE
Germany
Prior art keywords
ring
optical
peak
mode
loss
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.)
Active
Application number
DE602004022456T
Other languages
English (en)
Inventor
Roberto Magri
Cornelius Furst
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.)
Ericsson AB
Original Assignee
Ericsson AB
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 Ericsson AB filed Critical Ericsson AB
Publication of DE602004022456D1 publication Critical patent/DE602004022456D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04B10/27—Arrangements for networking
    • H04B10/275—Ring-type networks
    • 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
    • H04B10/27—Arrangements for networking
    • 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
    • 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
    • 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
    • H04J14/02212—Power control, e.g. to keep the total optical power constant by addition of a dummy signal
    • 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
    • H04J14/02216—Power control, e.g. to keep the total optical power constant by gain equalization
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0245—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0283—WDM ring architectures
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computing Systems (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
  • Optical Filters (AREA)
DE602004022456T 2003-12-03 2004-11-22 Optisches wellenlängen-multiplex-ringnetzwerk Active DE602004022456D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT002365A ITMI20032365A1 (it) 2003-12-03 2003-12-03 Reti ottiche.
PCT/EP2004/053042 WO2005055476A1 (en) 2003-12-03 2004-11-22 Wavelength division multiplex optical ring network

Publications (1)

Publication Number Publication Date
DE602004022456D1 true DE602004022456D1 (de) 2009-09-17

Family

ID=34640364

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004022456T Active DE602004022456D1 (de) 2003-12-03 2004-11-22 Optisches wellenlängen-multiplex-ringnetzwerk

Country Status (8)

Country Link
US (1) US8055127B2 (de)
EP (1) EP1698080B1 (de)
JP (1) JP4594324B2 (de)
CN (1) CN1890902B (de)
AT (1) ATE438967T1 (de)
DE (1) DE602004022456D1 (de)
IT (1) ITMI20032365A1 (de)
WO (1) WO2005055476A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20030050A1 (it) * 2003-01-15 2004-07-16 Marconi Comm Ltd Sistema di trasmissione ad anello amplificato ottico
US8204374B2 (en) * 2004-12-10 2012-06-19 Ciena Corporation Reconfigurable multichannel (WDM) optical ring network with optical shared protection
ITMI20050982A1 (it) * 2005-05-26 2006-11-27 Marconi Comm Spa "metodo per il ripristino dopo una interruzione in una rete ad anello amplificata basata sulla libera ricircolazione ase e rete secondo il metodo"
JP4615376B2 (ja) * 2005-06-02 2011-01-19 日本電信電話株式会社 遠隔励起光増幅伝送システム
ITMI20051625A1 (it) * 2005-09-01 2007-03-02 Marconi Comm Spa Amplificatore ottico e rete wdm ad anello tutta ottica in ambito metropolitano con esso
WO2008017213A1 (fr) * 2006-08-04 2008-02-14 Zte Corporation appareil et procédé de détection et de protection intellectualiséeS de condition de ligne pour dispositif de sortie d'alimentation élevée
WO2008125142A1 (en) * 2007-04-13 2008-10-23 Telefonaktiebolaget Lm Ericsson (Publ) Optical signal amplifier, method of optical amplification and optical network
US8787751B2 (en) * 2009-04-22 2014-07-22 Futurewei Technologies, Inc. Method for identifying the optical network unit power off reason
KR101257070B1 (ko) * 2009-09-01 2013-04-22 한국전자통신연구원 노드 장치 및 그의 광 신호 수신 방법과 링 네트워크 시스템
CN102687428B (zh) * 2009-10-16 2016-01-20 日本电气株式会社 光分路单元、光通信系统和光复用方法
US9509113B2 (en) * 2014-06-17 2016-11-29 Fujitsu Limited Transient gain cancellation for optical amplifiers
CN104539358B (zh) * 2014-12-26 2017-05-10 武汉光迅科技股份有限公司 用于实时检测掺铒光纤放大器噪声的方法和装置
CN106303765B (zh) * 2015-05-26 2019-03-15 中兴通讯股份有限公司 一种分布式自动功率优化系统及方法
US9608758B1 (en) * 2015-11-30 2017-03-28 Google Inc. Low cost gain clamped EDFA for TWDM passive optical network application
US11569907B2 (en) * 2020-08-26 2023-01-31 Ciena Corporation Per-band fault signaling in a multi-band optical transmission system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3680402B2 (ja) * 1996-02-05 2005-08-10 富士通株式会社 光増幅器
US6175436B1 (en) * 1996-07-30 2001-01-16 Tellium, Inc. Automatic feedback gain control for multiple channels in a doped optical fiber amplifier
GB9618706D0 (en) * 1996-09-06 1996-10-16 Northern Telecom Ltd Optical element power control
JP3428892B2 (ja) * 1998-01-14 2003-07-22 古河電気工業株式会社 光増幅器
US6115154A (en) * 1998-09-18 2000-09-05 Telcordia Technologies, Inc. Method and system for detecting loss of signal in wavelength division multiplexed systems
JP2000223762A (ja) * 1999-01-29 2000-08-11 Hitachi Cable Ltd 光増幅器
JP4514920B2 (ja) * 2000-08-21 2010-07-28 三菱電線工業株式会社 光ファイバ増幅器
ITMI20010695A1 (it) * 2001-03-30 2002-09-30 Marconi Comm Spa Metodo e dispositivo per la sopravvivenza del traffico in sistemi dwdm con add/drop nel caso di interruzione del collegamento a fibre ottich
US6421168B1 (en) * 2001-07-31 2002-07-16 Seneca Networks Reduction of ASE in WDM optical ring networks
JP3980503B2 (ja) * 2002-03-14 2007-09-26 日本電信電話株式会社 光増幅器
US7019894B1 (en) * 2003-03-11 2006-03-28 Meriton Networks Us Inc. Optical amplifier having automatic gain control using the amplified spontaneous emission as the monitoring parameter

Also Published As

Publication number Publication date
US20080131121A1 (en) 2008-06-05
JP2007513510A (ja) 2007-05-24
WO2005055476A1 (en) 2005-06-16
EP1698080B1 (de) 2009-08-05
CN1890902A (zh) 2007-01-03
JP4594324B2 (ja) 2010-12-08
US8055127B2 (en) 2011-11-08
ATE438967T1 (de) 2009-08-15
CN1890902B (zh) 2012-07-04
ITMI20032365A1 (it) 2005-06-04
EP1698080A1 (de) 2006-09-06

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