HK1028686A1 - Communication system - Google Patents

Communication system

Info

Publication number
HK1028686A1
HK1028686A1 HK00107986A HK00107986A HK1028686A1 HK 1028686 A1 HK1028686 A1 HK 1028686A1 HK 00107986 A HK00107986 A HK 00107986A HK 00107986 A HK00107986 A HK 00107986A HK 1028686 A1 HK1028686 A1 HK 1028686A1
Authority
HK
Hong Kong
Prior art keywords
communication system
communication
Prior art date
Application number
HK00107986A
Other languages
English (en)
Inventor
Robert Charles Goodfellow
Original Assignee
Marconi Comm Ltd
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 Marconi Comm Ltd filed Critical Marconi Comm Ltd
Publication of HK1028686A1 publication Critical patent/HK1028686A1/xx

Links

Classifications

    • 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
    • H04J14/0209—Multi-stage arrangements, e.g. by cascading multiplexers or demultiplexers
    • 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]

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)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Small-Scale Networks (AREA)
HK00107986A 1999-04-01 2000-12-12 Communication system HK1028686A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9907577A GB2348557B (en) 1999-04-01 1999-04-01 Communications system

Publications (1)

Publication Number Publication Date
HK1028686A1 true HK1028686A1 (en) 2001-02-23

Family

ID=10850841

Family Applications (1)

Application Number Title Priority Date Filing Date
HK00107986A HK1028686A1 (en) 1999-04-01 2000-12-12 Communication system

Country Status (9)

Country Link
US (1) US6529302B1 (fr)
EP (1) EP1041762A3 (fr)
JP (1) JP2000332685A (fr)
CN (2) CN101286813A (fr)
AU (1) AU2523100A (fr)
GB (1) GB2348557B (fr)
HK (1) HK1028686A1 (fr)
NO (1) NO20001643L (fr)
RU (1) RU2000108015A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002011336A1 (fr) * 2000-07-29 2002-02-07 Marconi Communications Limited Reseau optique a multiplexage par repartition en longueur d'onde (mrl)
AUPR622101A0 (en) * 2001-07-06 2001-08-02 University Of Melbourne, The Optical amplifier and/or add/drop structure
GB0126168D0 (en) 2001-10-31 2002-01-02 Cit Alcatel A branching unit
CN102088643A (zh) * 2009-12-03 2011-06-08 中兴通讯股份有限公司 光选择路由器

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1109751B (it) * 1978-01-31 1985-12-23 Nippon Telegraph & Telephone Moltiplatore e demultiplatore ottico
JPH10511476A (ja) * 1994-12-21 1998-11-04 イー−テック・ダイナミックス・インコーポレイテッド 集積可能な光ファイバカプラならびにそれによってできる装置およびシステム
FR2736480B1 (fr) * 1995-07-05 1997-09-19 France Telecom Disposif de coloration de signaux optiques
CA2225468A1 (fr) * 1995-08-04 1997-02-20 Alcatel Alsthom Compagnie Generale D'electricite Acheminement de signaux pour reseaux de fibres optiques
CA2224494A1 (fr) * 1995-08-04 1997-02-20 Martin Pettitt Multiplexeur a insertion-extraction
JP3329655B2 (ja) * 1996-03-04 2002-09-30 ケイディーディーアイ株式会社 光ａｄｍ装置
US5748349A (en) * 1996-03-27 1998-05-05 Ciena Corp. Gratings-based optical add-drop multiplexers for WDM optical communication system
US5721796A (en) * 1996-06-21 1998-02-24 Lucent Technologies Inc. Optical fiber cross connect with active routing for wavelength multiplexing and demultiplexing
JPH1032562A (ja) * 1996-07-16 1998-02-03 Fujitsu Ltd 光アッド／ドロップ回路
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
US5841918A (en) * 1996-08-26 1998-11-24 Jds Fitel Inc. Wavelength and bandwidth tunable optical system
US6256428B1 (en) * 1999-02-19 2001-07-03 Corning Incorporated Cascading of tunable optical filter elements
CA2241707C (fr) * 1998-06-26 2002-04-02 Mark Farries Circuit optique d'extraction dote de compensation de temps de groupe
US6348984B1 (en) * 1998-11-05 2002-02-19 Ciena Corporation Optical add/drop multiplexer

Also Published As

Publication number Publication date
GB2348557A (en) 2000-10-04
NO20001643L (no) 2000-10-02
CN1279542A (zh) 2001-01-10
EP1041762A2 (fr) 2000-10-04
GB9907577D0 (en) 1999-05-26
EP1041762A3 (fr) 2005-10-19
US6529302B1 (en) 2003-03-04
GB2348557B (en) 2002-03-13
CN101286813A (zh) 2008-10-15
NO20001643D0 (no) 2000-03-29
AU2523100A (en) 2000-10-05
JP2000332685A (ja) 2000-11-30
RU2000108015A (ru) 2002-01-20

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20090331