GB2359433B - Regenerative interface - Google Patents

Regenerative interface

Info

Publication number
GB2359433B
GB2359433B GB0003772A GB0003772A GB2359433B GB 2359433 B GB2359433 B GB 2359433B GB 0003772 A GB0003772 A GB 0003772A GB 0003772 A GB0003772 A GB 0003772A GB 2359433 B GB2359433 B GB 2359433B
Authority
GB
United Kingdom
Prior art keywords
optical
communication
rings
radiation
interface
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 - Fee Related
Application number
GB0003772A
Other versions
GB2359433A (en
GB0003772D0 (en
Inventor
Michael Sharratt
Harry Claringburn
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.)
Marconi Communications Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconi Communications Ltd
Marconi Co 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 Communications Ltd, Marconi Co Ltd filed Critical Marconi Communications Ltd
Priority to GB0003772A priority Critical patent/GB2359433B/en
Publication of GB0003772D0 publication Critical patent/GB0003772D0/en
Priority to EP01301045A priority patent/EP1126650A3/en
Priority to US09/780,683 priority patent/US7136586B2/en
Priority to NO20010771A priority patent/NO20010771L/en
Priority to JP2001040340A priority patent/JP4610754B2/en
Priority to CNB011168609A priority patent/CN100420173C/en
Publication of GB2359433A publication Critical patent/GB2359433A/en
Application granted granted Critical
Publication of GB2359433B publication Critical patent/GB2359433B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04J14/0278—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
    • H04J14/0227—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
    • 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
    • H04J14/0286—WDM hierarchical 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
    • 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]
    • 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
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0215—Architecture aspects
    • H04J14/022—For interconnection of WDM optical networks
    • 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
    • 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
    • H04Q2011/0011—Construction using wavelength conversion
    • 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
    • H04Q2011/0075—Wavelength grouping or hierarchical aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

The invention provides a regenerative interface (70, 80, 90, 100, 110, 120, 1500) for an optical communication system (10), the system (10) comprising a plurality of mutually interconnected bi-directional optical waveguide rings (20, 30, 40, 50, 60) in which radiation modulated with communication traffic propagates. The radiation is partitioned into 32 distinct wavebands. The interfaces (70, 1500) are included in the system (10) where communication traffic propagating in the rings (20, 30, 40, 50, 60) transfers from one ring to another. Each interface (70) is capable of providing an all-optical waveband reconfigurable communication link between the rings (20, 30, 40, 50, 60). At each interface (70), conversion of optical radiation to corresponding electrical signals only is performed for regeneration when transferring communication traffic from one ring to another, otherwise the system (10) handles the communication traffic in the optical domain thereby providing a potentially larger communication bandwidth compared to conventional optical communication systems. Radiation diverted between rings may be regenerated.
GB0003772A 2000-02-18 2000-02-18 Regenerative interface Expired - Fee Related GB2359433B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB0003772A GB2359433B (en) 2000-02-18 2000-02-18 Regenerative interface
EP01301045A EP1126650A3 (en) 2000-02-18 2001-02-06 Optical communication system
US09/780,683 US7136586B2 (en) 2000-02-18 2001-02-08 Optical communication system
NO20010771A NO20010771L (en) 2000-02-18 2001-02-15 Optical communication system
JP2001040340A JP4610754B2 (en) 2000-02-18 2001-02-16 Optical communication system
CNB011168609A CN100420173C (en) 2000-02-18 2001-02-17 Optical communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0003772A GB2359433B (en) 2000-02-18 2000-02-18 Regenerative interface

Publications (3)

Publication Number Publication Date
GB0003772D0 GB0003772D0 (en) 2000-04-05
GB2359433A GB2359433A (en) 2001-08-22
GB2359433B true GB2359433B (en) 2002-09-11

Family

ID=9885874

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0003772A Expired - Fee Related GB2359433B (en) 2000-02-18 2000-02-18 Regenerative interface

Country Status (1)

Country Link
GB (1) GB2359433B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US7321729B2 (en) * 2003-05-29 2008-01-22 Fujitsu Limited Optical ring network with selective signal regeneration and wavelength conversion
US7483637B2 (en) 2003-11-26 2009-01-27 Fujitsu Limited Optical ring network with optical subnets and method
EP2928090B1 (en) * 2012-12-17 2018-03-14 Huawei Technologies Co., Ltd. Optical network element, electric network element and signaling establishment method when electric relay is in electric network element

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997018685A1 (en) * 1995-11-14 1997-05-22 Telefonaktiebolaget Lm Ericsson (Publ) A modular optical cross-connect architecture with optical wavelength switching
US5726785A (en) * 1995-02-28 1998-03-10 France Telecom Optical add-drop multiplexer using optical circulators and photoinduced Bragg gratings
GB2321809A (en) * 1997-01-31 1998-08-05 Stc Submarine Systems Ltd Add/drop multiplexer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5726785A (en) * 1995-02-28 1998-03-10 France Telecom Optical add-drop multiplexer using optical circulators and photoinduced Bragg gratings
WO1997018685A1 (en) * 1995-11-14 1997-05-22 Telefonaktiebolaget Lm Ericsson (Publ) A modular optical cross-connect architecture with optical wavelength switching
GB2321809A (en) * 1997-01-31 1998-08-05 Stc Submarine Systems Ltd Add/drop multiplexer

Also Published As

Publication number Publication date
GB2359433A (en) 2001-08-22
GB0003772D0 (en) 2000-04-05

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170218