DE69530803D1 - Optisches Wellenlängenmultiplex Netzwerk - Google Patents

Optisches Wellenlängenmultiplex Netzwerk

Info

Publication number
DE69530803D1
DE69530803D1 DE69530803T DE69530803T DE69530803D1 DE 69530803 D1 DE69530803 D1 DE 69530803D1 DE 69530803 T DE69530803 T DE 69530803T DE 69530803 T DE69530803 T DE 69530803T DE 69530803 D1 DE69530803 D1 DE 69530803D1
Authority
DE
Germany
Prior art keywords
wavelength division
optical wavelength
division multiplex
multiplex network
network
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.)
Expired - Lifetime
Application number
DE69530803T
Other languages
English (en)
Inventor
Manish Sharma
Masataka Ito
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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
Priority claimed from JP6020504A external-priority patent/JPH07231305A/ja
Priority claimed from JP14355994A external-priority patent/JP3288859B2/ja
Application filed by Toshiba Corp filed Critical Toshiba Corp
Application granted granted Critical
Publication of DE69530803D1 publication Critical patent/DE69530803D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/506—Multiwavelength transmitters
    • 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
    • H04B10/50—Transmitters
    • H04B10/572—Wavelength control
    • 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
    • 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
    • H04J14/0227—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
    • 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
    • H04J14/0287—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
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0206—Express channels arrangements
    • 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
    • H04J14/0287—Protection in WDM systems
    • H04J14/0297—Optical equipment protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Small-Scale Networks (AREA)
DE69530803T 1994-02-17 1995-02-15 Optisches Wellenlängenmultiplex Netzwerk Expired - Lifetime DE69530803D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6020504A JPH07231305A (ja) 1994-02-17 1994-02-17 光波長多重ネットワーク
JP14355994A JP3288859B2 (ja) 1994-06-24 1994-06-24 光波長多重ネットワークシステム

Publications (1)

Publication Number Publication Date
DE69530803D1 true DE69530803D1 (de) 2003-06-26

Family

ID=26357466

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69534360T Expired - Lifetime DE69534360D1 (de) 1994-02-17 1995-02-15 Zentrale Quelle von mehreren Wellenlängen
DE69530803T Expired - Lifetime DE69530803D1 (de) 1994-02-17 1995-02-15 Optisches Wellenlängenmultiplex Netzwerk

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69534360T Expired - Lifetime DE69534360D1 (de) 1994-02-17 1995-02-15 Zentrale Quelle von mehreren Wellenlängen

Country Status (3)

Country Link
US (1) US5717795A (de)
EP (2) EP0668674B1 (de)
DE (2) DE69534360D1 (de)

Families Citing this family (116)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6097517A (en) * 1995-09-01 2000-08-01 Oki Electric Industry Co., Ltd. Wavelength router
CA2183691C (en) * 1995-09-19 2000-08-08 Bernard Glance Incrementally expandable ring architecture for providing telephony services
FR2746239B1 (fr) * 1996-03-18 1998-05-29 Reseau de telecommunication reconfigurable superpose par une infrastructure electronique
JPH09275378A (ja) * 1996-04-05 1997-10-21 Kokusai Denshin Denwa Co Ltd <Kdd> 高速偏波スクランブラを使用した光アド／ドロップ多重装置および光アド／ドロップ多重方法
FR2748122B1 (fr) * 1996-04-26 1998-06-12 Radiall Sa Dispositif pour injecter et/ou extraire des signaux optiques sur une fibre optique dans laquelle circulent deja des signaux optiques
JP4041177B2 (ja) * 1996-07-09 2008-01-30 富士通株式会社 光分岐挿入装置及び光分岐挿入装置を有する光伝送システム
JPH1032546A (ja) * 1996-07-18 1998-02-03 K D D Kaitei Cable Syst Kk 光伝送システム及び光分岐装置
IT1283372B1 (it) * 1996-07-31 1998-04-17 Pirelli Cavi S P A Ora Pirelli Dispositivo per l'inserimento e l'estrazione di segnali ottici
JP3555824B2 (ja) * 1996-11-21 2004-08-18 日本電気株式会社 分岐装置
US6154587A (en) * 1997-03-21 2000-11-28 Oki Electric Industry Co., Ltd. Optical cross connector apparatus
US5898801A (en) 1998-01-29 1999-04-27 Lockheed Martin Corporation Optical transport system
FI112569B (fi) * 1997-05-13 2003-12-15 Nokia Corp Optinen add/drop-laite
SE509807C2 (sv) * 1997-05-15 1999-03-08 Ericsson Telefon Ab L M Anordning vid add/drop-nod i ett väglängds- multiplexerat optiskt kommunikationssystem.
US6222654B1 (en) * 1997-08-04 2001-04-24 Lucent Technologies, Inc. Optical node system for a ring architecture and method thereof
US6631018B1 (en) 1997-08-27 2003-10-07 Nortel Networks Limited WDM optical network with passive pass-through at each node
KR100251692B1 (ko) 1997-09-12 2000-04-15 윤종용 광섬유 가입자 망
US5995257A (en) * 1997-10-15 1999-11-30 Mci Communications Corporation Add/drop multiplexer for multiwavelength pulse oriented optical communications systems
JP3930952B2 (ja) * 1997-10-20 2007-06-13 富士通株式会社 光クロスコネクト装置，光挿入分岐装置および光源装置
US6396852B1 (en) * 1997-11-18 2002-05-28 Jane Marie Simmons Ring bundling in the design of rings for telecommunications networks
US6198556B1 (en) * 1998-01-13 2001-03-06 Ciena Corporation WDM ring transmission system
US6147785A (en) * 1998-01-28 2000-11-14 Ciena Corporation Coherent crosstalk attenuation apparatus
US6137608A (en) * 1998-01-30 2000-10-24 Lucent Technologies Inc. Optical network switching system
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
US6021233A (en) * 1998-02-12 2000-02-01 Ciena Corporation WDM ring transmission system having reduced adjacent channel cross-talk
FI980328A (fi) 1998-02-13 1999-08-14 Nokia Networks Oy Optinen tietoliikenneverkko
JPH11275028A (ja) * 1998-03-20 1999-10-08 Fujitsu Ltd 光通信システム
US6665496B1 (en) * 1998-04-27 2003-12-16 Ciena Corporation WDM ring transmission system
US6091869A (en) * 1998-04-30 2000-07-18 Telefonaktiebolaget Lm Ericsson Low loss, optical add/drop WDM node
US6259836B1 (en) * 1998-05-14 2001-07-10 Telecommunications Research Laboratories Optical frequency shifter and transmission system
US5959749A (en) * 1998-05-20 1999-09-28 Nortel Networks Corporation Optical add/drop multiplexer/demultiplexer
US6426815B1 (en) * 1998-06-19 2002-07-30 Ciena Corporation WDM ring transmission system having two hubs
US6108331A (en) * 1998-07-10 2000-08-22 Upstate Systems Tec, Inc. Single medium wiring scheme for multiple signal distribution in building and access port therefor
US6816681B2 (en) * 1998-09-24 2004-11-09 Nortel Networks Limited Analogous channel method for performance monitoring and equalization in optical networks
US6567197B1 (en) * 1998-10-20 2003-05-20 At&T Corp. Optical ring network architecture
US6289148B1 (en) * 1998-12-14 2001-09-11 At&T Corporation Free-space micro-mirror wavelength add/drop multiplexers with full connectivity for two-fiber ring networks
US7181138B1 (en) * 1998-12-14 2007-02-20 Tellabs Operations, Inc. Optical network connection test apparatus and methods
US6721508B1 (en) 1998-12-14 2004-04-13 Tellabs Operations Inc. Optical line terminal arrangement, apparatus and methods
US6377392B1 (en) 1999-02-26 2002-04-23 Ciena Corporation Optical amplifier
WO2000048347A1 (en) * 1999-02-15 2000-08-17 Chromatis Networks, Inc. Flexible and scalable architecture for dwdm networks in fiber rings
US6509986B1 (en) * 1999-02-26 2003-01-21 Ciena Corporation WDM ring transmission system having amplified dropped channels
SE516316C2 (sv) 1999-03-18 2001-12-17 Cisco Systems Sweden Ab Mottagartransponder för skyddade nät
GB9908075D0 (en) * 1999-04-09 1999-06-02 Secr Defence An optical fibre sensor assembly
US6351582B1 (en) * 1999-04-21 2002-02-26 Nortel Networks Limited Passive optical network arrangement
US6947670B1 (en) 1999-06-30 2005-09-20 Lucent Technologies Inc. Optical add/drop arrangement for ring networks employing wavelength division multiplexing
DE19932579A1 (de) * 1999-07-13 2001-02-08 Alcatel Sa Verfahren zum Übertragen eines verketteten Signals
US6188816B1 (en) * 1999-09-08 2001-02-13 Nortel Networks Limited Filter topologies for optical add-drop multiplexers
JP4567830B2 (ja) * 1999-11-29 2010-10-20 三菱電機株式会社 光波長多重伝送方式
DE10004290B4 (de) * 2000-02-01 2004-01-29 Siemens Ag Access-Knoten für optische Netze mit variablen Access-Wellenlängen, Nutzergerät zum Anschluss an einen solchen Access-Knoten, Verfahren zum Einspeisen von mehreren Signalen von mehreren Nutzern in ein optisches Netz und Verwendung eines Access-Knotens und mindestens eines Nutzergeräts zur Durchführung eines solchen Verfahrens
WO2001058073A1 (en) * 2000-02-03 2001-08-09 University Of Southern California Reconfigurable optical recognition of bit information in a digital data stream with different bit rates
US20010046350A1 (en) * 2000-02-25 2001-11-29 Tedesco James M. Configurable Wavelength routing device
US6587237B1 (en) * 2000-04-13 2003-07-01 Sprint Communications Company L.P. Metropolitan area network using low insertion loss optical add-drop multiplexers
US7120359B2 (en) * 2000-05-22 2006-10-10 Opvista Incorporated Broadcast and select all optical network
US7499647B2 (en) * 2000-05-22 2009-03-03 Opvista Incorporated Fully protected broadcast and select all optical network
US7158722B1 (en) * 2000-07-13 2007-01-02 At&T Corp. Method for operating transparent node for WDM shared “virtual ring” networks
US20020101874A1 (en) * 2000-11-21 2002-08-01 Whittaker G. Allan Physical layer transparent transport information encapsulation methods and systems
US6567579B2 (en) * 2000-12-15 2003-05-20 Alcatel Multi-channel, multi-mode redundant optical local loop having a bus topology
US6895186B2 (en) 2000-12-27 2005-05-17 The Trustees Of Columbia University In The City Of New York System for accessing a wavelength-division-multiplexed bidirectional optical fiber ring network
US7012927B2 (en) * 2001-02-06 2006-03-14 Honeywell International Inc. High level message priority assignment by a plurality of message-sending nodes sharing a signal bus
KR100404518B1 (ko) * 2001-02-22 2003-11-05 주식회사 에이앤피텔레콤 4파장 애드/드롭형 파장분할 다중화기를 이용한 광통신시스템
US6885821B2 (en) * 2001-02-27 2005-04-26 Avanex Corporation Full-duplex optical add/drop communications system utilizing central light sources
US7027733B2 (en) * 2001-03-19 2006-04-11 At&T Corp. Delivering multicast services on a wavelength division multiplexed network using a configurable four-port wavelength selective crossbar switch
SE524863C2 (sv) * 2001-04-23 2004-10-12 Transmode Systems Ab Optiskt CWDM-system
US7035541B2 (en) * 2001-06-01 2006-04-25 Nortel Networks Limited Wavelength architecture and implementation for a photonically switched network
WO2002100042A1 (en) * 2001-06-01 2002-12-12 Fujitsu Network Communications, Inc. Centralized switching system and method in a ring network
US20020186430A1 (en) * 2001-06-12 2002-12-12 Ross Halgren Communications network
JP2002374270A (ja) * 2001-06-13 2002-12-26 Jst Mfg Co Ltd 光ネットワークシステム及びコントローラ
JP3749843B2 (ja) * 2001-08-07 2006-03-01 松下電器産業株式会社 光バースト伝送装置、光バースト送信装置及び光バースト伝送方法
US20030058505A1 (en) * 2001-09-26 2003-03-27 Joseph Arol Passive distribution of wavelengths in optical networks
US20030072053A1 (en) * 2001-10-11 2003-04-17 The Boeing Company Closed-loop optical network system and an associated transceiver and method for transmitting a plurality of optical signals
EP1309118A1 (de) * 2001-10-31 2003-05-07 Agilent Technologies Inc. Wellenlängenmultiplex Lichtwellenleiternetzwerk
FR2835134B1 (fr) * 2002-01-24 2005-06-24 Cit Alcatel Methode de securisation d'un reseau de telecommunication optique en anneau ainsi que noeud de communication, noeud de communication a amplification et concentrateur de trafic d'un reseau securise de telecommunication optique en anneau
GB0206564D0 (en) * 2002-03-20 2002-05-01 Colonsay Comm Ltd Optical access method and optical node add/drop system
US7184663B2 (en) 2002-05-29 2007-02-27 Fujitsu Limited Optical ring network with hub node and method
US7283740B2 (en) 2002-05-29 2007-10-16 Fujitsu Limited Optical ring network with optical subnets and method
US7283739B2 (en) 2002-05-29 2007-10-16 Fujitsu Limited Multiple subnets in an optical ring network and method
US20040028319A1 (en) * 2002-07-03 2004-02-12 Mahesh Ajgaonkar Optical communication system and method
US20040076434A1 (en) * 2002-09-27 2004-04-22 Whittaker G. Allan Optical distribution network for RF and other analog signals
US6912339B2 (en) * 2002-09-27 2005-06-28 Lockheed Martin Corporation Optical interface devices having balanced amplification
US7349629B1 (en) * 2002-11-26 2008-03-25 Lockheed Martin Corporation Methods and systems for creating a digital interconnect fabric
US7522790B1 (en) * 2002-12-20 2009-04-21 Raytheon Company Optical communications system with selective block/add capability of an optical channel
JP3880994B2 (ja) * 2003-03-04 2007-02-14 富士通株式会社 コンテンツ情報の配信方法並びに配信システムおよびそのセンタ局
US7570887B2 (en) * 2003-03-31 2009-08-04 Lockheed Martin Corporation Optical network interface systems and devices
US7321729B2 (en) 2003-05-29 2008-01-22 Fujitsu Limited Optical ring network with selective signal regeneration and wavelength conversion
KR100955129B1 (ko) * 2003-05-30 2010-04-28 정보통신연구진흥원 비간섭성　광대역　광원을 이용한 파장분할다중방식　수동형　광 네트워크 구현 방법
US7483637B2 (en) 2003-11-26 2009-01-27 Fujitsu Limited Optical ring network with optical subnets and method
JP4713837B2 (ja) * 2004-02-10 2011-06-29 株式会社日立製作所 光分岐挿入多重化装置
US20050185959A1 (en) * 2004-02-19 2005-08-25 Fujitsu Limited Photonic data storage network
US7577367B2 (en) * 2004-06-15 2009-08-18 Op Vista Incorporated Optical communication using duobinary modulation
US20050286896A1 (en) * 2004-06-29 2005-12-29 Fujitsu Limited Hybrid optical ring network
US7603035B2 (en) 2004-09-03 2009-10-13 Fujitsu Limited Method and system for a data centric architecture in an optical network
US7548695B2 (en) * 2004-10-19 2009-06-16 Nextg Networks, Inc. Wireless signal distribution system and method
US7120360B2 (en) 2005-01-06 2006-10-10 Fujitsu Limited System and method for protecting traffic in a hubbed optical ring network
JP2006270283A (ja) * 2005-03-23 2006-10-05 Fujitsu Ltd 多波長光源を用いた波長分割多重伝送装置
FR2884374B1 (fr) * 2005-04-07 2007-06-01 Alcatel Sa Reseau de communication (d)wdm a sources de lumiere protegees
EP1882319A2 (de) * 2005-05-02 2008-01-30 Opvista, Incorporated Multiple interconnected broadcast and select optical ring networks with revertible protection switch
KR100698766B1 (ko) * 2005-09-07 2007-03-23 한국과학기술원 파장분할 다중방식 수동형 광 가입자 망 시스템에 사용되는장애 위치 감시 장치 및 이를 구비한 파장분할 다중방식수동형 광 가입자 망 시스템
US7769932B2 (en) * 2005-09-09 2010-08-03 Honeywell International, Inc. Bitwise arbitration on a serial bus using arbitrarily selected nodes for bit synchronization
WO2007044939A2 (en) * 2005-10-13 2007-04-19 Opvista Incorporated Optical ring networks using circulating optical probe in protection switching with automatic reversion
US7720377B2 (en) * 2006-01-23 2010-05-18 Hewlett-Packard Development Company, L.P. Compute clusters employing photonic interconnections for transmitting optical signals between compute cluster nodes
US7680144B2 (en) * 2006-09-12 2010-03-16 Honeywell International Inc. Device coupled between serial busses using bitwise arbitration
US8571410B2 (en) 2006-10-11 2013-10-29 Novera Optics, Inc. Mutual wavelength locking in WDM-PONS
US7773883B1 (en) 2007-05-04 2010-08-10 Vello Systems, Inc. Single-fiber optical ring networks based on optical double sideband modulation
US8175458B2 (en) 2007-07-17 2012-05-08 Vello Systems, Inc. Optical ring networks having node-to-node optical communication channels for carrying data traffic
US20090247006A1 (en) * 2008-01-22 2009-10-01 Wi3, Inc., New York Network access point having interchangeable cartridges
US8275262B2 (en) * 2008-11-10 2012-09-25 At&T Intellectual Property I, L.P. Methods and apparatus to deploy fiber optic based access networks
JP5525041B2 (ja) * 2009-05-14 2014-06-18 タイコ エレクトロニクス サブシー コミュニケーションズ エルエルシー 別個の分岐ユニットと所定波長フィルタ・ユニットを含む分岐構成およびこれを含むシステムおよび方法
US20110158658A1 (en) 2009-12-08 2011-06-30 Vello Systems, Inc. Optical Subchannel-Based Cyclical Filter Architecture
US8705741B2 (en) * 2010-02-22 2014-04-22 Vello Systems, Inc. Subchannel security at the optical layer
US8542999B2 (en) 2011-02-01 2013-09-24 Vello Systems, Inc. Minimizing bandwidth narrowing penalties in a wavelength selective switch optical network
WO2014187482A1 (en) * 2013-05-22 2014-11-27 Telefonaktiebolaget L M Ericsson (Publ) Resilience in passive optical networks
WO2014189423A1 (en) * 2013-05-24 2014-11-27 Telefonaktiebolaget Lm Ericsson (Publ) Optical device, optical distribution network and respective methods performed thereby
MY183982A (en) * 2013-08-19 2021-03-17 Telekom Malaysia Berhad An improved system and method for interoperating a radio-over-fiber based network in a fiber-to-the-home network
US9385811B2 (en) * 2013-12-06 2016-07-05 Cable Television Laboratories, Inc Optical communication systems and methods
US9300399B2 (en) * 2014-07-02 2016-03-29 Cable Television Laboratories, Inc. Optical communication systems and methods
CN105681932B (zh) * 2016-03-31 2018-10-02 中国人民解放军国防科学技术大学 一种支持大规模、全光互连的光交换机
US11838102B2 (en) * 2021-11-12 2023-12-05 Huawei Technologies Co., Ltd. Method and systems for optical network dimensioning

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527026B1 (fr) * 1982-05-14 1985-09-06 Thomson Csf Dispositif de liaison conversationnelle de type bus a fibres optiques unimodales
US4662715A (en) * 1985-01-25 1987-05-05 Westinghouse Electric Corp. Fiber optic network with reduced coupling losses
US5058101A (en) * 1988-12-15 1991-10-15 Bell Communications Research, Inc. Coherent detection loop distribution system
JPH0357343A (ja) * 1989-07-26 1991-03-12 Oki Electric Ind Co Ltd 光交換機
US4978189A (en) * 1989-11-14 1990-12-18 At&T Bell Laboratories Hybrid optical isolator, circulator or switch, and systems utilizing same
EP0452895B1 (de) * 1990-04-18 1996-07-03 Canon Kabushiki Kaisha Optisches Übertragungsnetzwerk und Übertragungsverfahren für dasselbe
JPH05259991A (ja) * 1992-03-13 1993-10-08 Nippon Telegr & Teleph Corp <Ntt> 光ネットワーク
US5264960A (en) * 1992-05-08 1993-11-23 At&T Bell Laboratories Optical wavelength shifter
GB9401488D0 (en) * 1994-01-26 1994-03-23 British Telecomm Optical communications

Also Published As

Publication number Publication date
EP0668674A3 (de) 1998-04-22
EP1304819B1 (de) 2005-08-03
DE69534360D1 (de) 2005-09-08
US5717795A (en) 1998-02-10
EP1304819A3 (de) 2003-05-21
EP0668674B1 (de) 2003-05-21
EP0668674A2 (de) 1995-08-23
EP1304819A2 (de) 2003-04-23

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