SE506748C2 - Förfarande och anordning för att borttaga och addera kanaler i en optisk multiplexor - Google Patents

Förfarande och anordning för att borttaga och addera kanaler i en optisk multiplexor

Info

Publication number
SE506748C2
SE506748C2 SE9502311A SE9502311A SE506748C2 SE 506748 C2 SE506748 C2 SE 506748C2 SE 9502311 A SE9502311 A SE 9502311A SE 9502311 A SE9502311 A SE 9502311A SE 506748 C2 SE506748 C2 SE 506748C2
Authority
SE
Sweden
Prior art keywords
channels
optical
input
output
node
Prior art date
Application number
SE9502311A
Other languages
English (en)
Swedish (sv)
Other versions
SE9502311D0 (sv
SE9502311L (sv
Inventor
Paolo Andreozzi
Stefano Merli
Renato Norbiato
Francesco Testa
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
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9502311A priority Critical patent/SE506748C2/sv
Publication of SE9502311D0 publication Critical patent/SE9502311D0/xx
Priority to AU63229/96A priority patent/AU6322996A/en
Priority to DE69604587T priority patent/DE69604587T2/de
Priority to PCT/SE1996/000813 priority patent/WO1997001897A1/en
Priority to EP96922322A priority patent/EP0835567B1/de
Priority to US08/981,520 priority patent/US6134036A/en
Priority to JP50434897A priority patent/JP3862280B2/ja
Publication of SE9502311L publication Critical patent/SE9502311L/xx
Publication of SE506748C2 publication Critical patent/SE506748C2/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • 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
    • H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
    • H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
    • 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
    • H04J14/0221—Power control, e.g. to keep the total optical power constant
    • H04J14/02218—Centralized control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0289—Optical multiplex section protection
    • H04J14/0291—Shared protection at the optical multiplex section (1:1, n:m)
    • 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
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0071—Provisions for the electrical-optical layer interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0013—Construction using gating amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0037—Operation
    • H04Q2011/0043—Fault tolerance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0037—Operation
    • H04Q2011/0049—Crosstalk reduction; Noise; Power budget
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H04Q2011/0083—Testing; Monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/009—Topology aspects
    • H04Q2011/0092—Ring

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Time-Division Multiplex Systems (AREA)
SE9502311A 1995-06-26 1995-06-26 Förfarande och anordning för att borttaga och addera kanaler i en optisk multiplexor SE506748C2 (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9502311A SE506748C2 (sv) 1995-06-26 1995-06-26 Förfarande och anordning för att borttaga och addera kanaler i en optisk multiplexor
AU63229/96A AU6322996A (en) 1995-06-26 1996-06-20 Add/drop multiplexer node
DE69604587T DE69604587T2 (de) 1995-06-26 1996-06-20 Knoten als ein-/ausfüge-multiplexer
PCT/SE1996/000813 WO1997001897A1 (en) 1995-06-26 1996-06-20 Add/drop multiplexer node
EP96922322A EP0835567B1 (de) 1995-06-26 1996-06-20 Knoten als ein-/ausfüge-multiplexer
US08/981,520 US6134036A (en) 1995-06-26 1996-06-20 Add/drop multiplexer node
JP50434897A JP3862280B2 (ja) 1995-06-26 1996-06-20 アド／ドロップ（ａｄｄ／ｄｒｏｐ）マルチプレクサノード

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9502311A SE506748C2 (sv) 1995-06-26 1995-06-26 Förfarande och anordning för att borttaga och addera kanaler i en optisk multiplexor

Publications (3)

Publication Number Publication Date
SE9502311D0 SE9502311D0 (sv) 1995-06-26
SE9502311L SE9502311L (sv) 1996-12-27
SE506748C2 true SE506748C2 (sv) 1998-02-09

Family

ID=20398746

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9502311A SE506748C2 (sv) 1995-06-26 1995-06-26 Förfarande och anordning för att borttaga och addera kanaler i en optisk multiplexor

Country Status (7)

Country Link
US (1) US6134036A (de)
EP (1) EP0835567B1 (de)
JP (1) JP3862280B2 (de)
AU (1) AU6322996A (de)
DE (1) DE69604587T2 (de)
SE (1) SE506748C2 (de)
WO (1) WO1997001897A1 (de)

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FI112569B (fi) * 1997-05-13 2003-12-15 Nokia Corp Optinen add/drop-laite
US6631018B1 (en) 1997-08-27 2003-10-07 Nortel Networks Limited WDM optical network with passive pass-through at each node
US6301031B2 (en) * 1997-09-02 2001-10-09 Agere Systems Optoelectronics Guardian Corp. Method and apparatus for wavelength-channel tracking and alignment within an optical communications system
US6657952B1 (en) 1997-11-28 2003-12-02 Nec Corporation Ring network for sharing protection resource by working communication paths
JP3995781B2 (ja) * 1998-02-02 2007-10-24 富士通株式会社 波長選択フィルタを用いた光分岐・挿入装置及び光分岐装置
GB9809990D0 (en) * 1998-05-12 1998-07-08 Northern Telecom Ltd Integrated telecommunications line system and cross-connect
KR100400362B1 (ko) * 1998-08-04 2003-11-14 삼성전자주식회사 광결합및분리장치,그리고 이를구비한파장분할다중화광링크
SE516316C2 (sv) 1999-03-18 2001-12-17 Cisco Systems Sweden Ab Mottagartransponder för skyddade nät
US6370294B1 (en) * 1999-06-25 2002-04-09 Adc Telecommunications, Inc. Fiber optic circuit and module with switch
US20010046350A1 (en) * 2000-02-25 2001-11-29 Tedesco James M. Configurable Wavelength routing device
US6950611B2 (en) * 2000-03-08 2005-09-27 Fitel Usa Corp. In-line polarization monitoring and control in lightwave communication systems
AU2001268034A1 (en) * 2000-03-10 2001-09-17 Corning Incorporated Devices and methods for controlling protection switching in an optical channel shared protection ring
WO2001082516A1 (en) * 2000-04-24 2001-11-01 Lucent Technologies Inc. Gain equalization in dwdm networks
US6961524B1 (en) * 2000-09-22 2005-11-01 Nortel Networks Limited WDM channel equalization in add/drop-capable optical networks
JP3586659B2 (ja) * 2001-04-11 2004-11-10 日本電気通信システム株式会社 Ｏａｄｍシステム及びその波長数算出方法
US6307986B1 (en) * 2001-04-24 2001-10-23 Seneca Networks Protection switching in bidirectional WDM optical communication networks with transponders
US6907158B2 (en) * 2001-11-05 2005-06-14 Broadband Royalty Corporation Configurable optical add/drop multiplexer with partial or complete wavelength drop capability
US6907159B1 (en) * 2002-02-21 2005-06-14 Broadband Royalty Corporation Configurable optical add/drop multiplexer with enhanced add channel capacity
US7231148B2 (en) * 2002-03-28 2007-06-12 Fujitsu Limited Flexible open ring optical network and method
EP2244398A3 (de) * 2002-03-27 2010-11-24 Fujitsu Limited Flexibles, offenes, optisches Ringnetzwerk
US7289734B2 (en) * 2002-12-24 2007-10-30 Tropic Networks Inc. Method and system for multi-level power management in an optical network
KR100498955B1 (ko) * 2003-02-05 2005-07-04 삼성전자주식회사 파장분할다중방식 자기치유 환형 광통신망
IL163557A (en) * 2004-08-16 2010-05-31 Eci Telecom Ltd Method and system for hybrid protection in optical networks
US7450851B2 (en) * 2004-08-27 2008-11-11 Fujitsu Limited System and method for modularly scalable architecture for optical networks
WO2006035520A1 (ja) 2004-09-29 2006-04-06 Fujitsu Limited 光挿入分岐装置及び光ネットワークシステム
JP4593267B2 (ja) 2004-12-28 2010-12-08 富士通株式会社 光ノードおよび光分岐挿入装置
US20060188260A1 (en) * 2005-02-22 2006-08-24 Positron Networks Pni Inc. Robust service delivery node and method therefor
US8131150B2 (en) * 2006-06-07 2012-03-06 At&T Intellectual Property Ii, L.P. Tunable bidirectional multiplexer/demultiplexer for optical transmission system
JP2009231906A (ja) * 2008-03-19 2009-10-08 Nec Corp データ伝送システム、伝送装置、およびプロテクション制御方法
US9130691B2 (en) * 2013-02-25 2015-09-08 Verizon Patent And Licensing Inc. Optical burst switched network nodes
JP6476894B2 (ja) * 2015-01-20 2019-03-06 富士通株式会社 光増幅器アレイ、及びこれを用いた光伝送装置
JP6359988B2 (ja) * 2015-02-24 2018-07-18 ファナック株式会社 ノイズ検出装置
WO2022009293A1 (ja) * 2020-07-06 2022-01-13 日本電信電話株式会社 光ノード装置、光トランスポートネットワークシステム、光パストレース方法及びプログラム

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US5003531A (en) * 1989-08-11 1991-03-26 Infotron Systems Corporation Survivable network using reverse protection ring
WO1992004787A1 (en) * 1990-08-31 1992-03-19 Bell Communications Research, Inc. Self-healing meshed network using logical ring structures
GB2253973B (en) * 1991-03-22 1995-06-07 Plessey Telecomm Multiplex data ring transmission
US5442623A (en) * 1992-08-17 1995-08-15 Bell Communications Research, Inc. Passive protected self healing ring network
US5617233A (en) * 1995-09-28 1997-04-01 The United States Of America As Represented By The Secretary Of The Air Force Transparent optical node structure
US5959749A (en) * 1998-05-20 1999-09-28 Nortel Networks Corporation Optical add/drop multiplexer/demultiplexer

Also Published As

Publication number Publication date
US6134036A (en) 2000-10-17
WO1997001897A1 (en) 1997-01-16
SE9502311D0 (sv) 1995-06-26
JPH11508428A (ja) 1999-07-21
DE69604587T2 (de) 2000-02-03
DE69604587D1 (de) 1999-11-11
EP0835567B1 (de) 1999-10-06
AU6322996A (en) 1997-01-30
EP0835567A1 (de) 1998-04-15
JP3862280B2 (ja) 2006-12-27
SE9502311L (sv) 1996-12-27

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