WO2004028091A3 - Optical network with distributed sub-band rejections - Google Patents

Optical network with distributed sub-band rejections Download PDF

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Publication number
WO2004028091A3
WO2004028091A3 PCT/US2003/029157 US0329157W WO2004028091A3 WO 2004028091 A3 WO2004028091 A3 WO 2004028091A3 US 0329157 W US0329157 W US 0329157W WO 2004028091 A3 WO2004028091 A3 WO 2004028091A3
Authority
WO
WIPO (PCT)
Prior art keywords
transport
signal
network
sub
band
Prior art date
Application number
PCT/US2003/029157
Other languages
French (fr)
Other versions
WO2004028091A2 (en
Inventor
Cechan Tian
Koji Takeguchi
Yasuhiko Aoki
Susumu Kinoshita
Original Assignee
Fujitsu Network Communications
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 Fujitsu Network Communications filed Critical Fujitsu Network Communications
Priority to EP03770343A priority Critical patent/EP1540890A2/en
Priority to JP2004537884A priority patent/JP4598528B2/en
Publication of WO2004028091A2 publication Critical patent/WO2004028091A2/en
Publication of WO2004028091A3 publication Critical patent/WO2004028091A3/en

Links

Classifications

    • 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
    • H04J14/0293—Optical channel protection
    • H04J14/0294—Dedicated protection at the optical channel (1+1)
    • 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
    • H04J14/0204—Broadcast and select arrangements, e.g. with an optical splitter at the input before adding or dropping
    • 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
    • H04J14/0205—Select and combine arrangements, e.g. with an optical combiner at the output after adding or dropping
    • 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
    • H04J14/021—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
    • H04J14/0213—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
    • H04J14/0278—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
    • 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
    • H04J14/0215—Architecture aspects
    • H04J14/0219—Modular or upgradable architectures

Abstract

A node for an optical network includes a first transport element operable to be coupled to an optical ring and to transport traffic in a first direction and a second transport element operable to be coupled to the optical ring and to transport traffic in a second, disparate direction. The first and second transport elements each include an optical splitter element operable to split an ingress signal into an intermediate signal and a drop signal. A filter in each node is operable to reject a first sub-band of the network from the intermediate signal to generate a passthrough signal including a plurality of disparate sub-bands of the network. Each node further includes an add element operable to add local traffic in the first sub-band to the passthrough signal for transport in the network.
PCT/US2003/029157 2002-09-17 2003-09-16 Optical network with distributed sub-band rejections WO2004028091A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP03770343A EP1540890A2 (en) 2002-09-17 2003-09-16 Optical network with distributed sub-band rejections
JP2004537884A JP4598528B2 (en) 2002-09-17 2003-09-16 Optical network and node for optical network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/246,053 US20040052530A1 (en) 2002-09-17 2002-09-17 Optical network with distributed sub-band rejections
US10/246,053 2002-09-17

Publications (2)

Publication Number Publication Date
WO2004028091A2 WO2004028091A2 (en) 2004-04-01
WO2004028091A3 true WO2004028091A3 (en) 2004-06-03

Family

ID=31992249

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/029157 WO2004028091A2 (en) 2002-09-17 2003-09-16 Optical network with distributed sub-band rejections

Country Status (4)

Country Link
US (1) US20040052530A1 (en)
EP (1) EP1540890A2 (en)
JP (1) JP4598528B2 (en)
WO (1) WO2004028091A2 (en)

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US7609966B2 (en) * 2005-02-18 2009-10-27 Fujitsu Limited Method and system for time-sharing transmission frequencies in an optical network
US7466917B2 (en) * 2005-03-15 2008-12-16 Fujitsu Limited Method and system for establishing transmission priority for optical light-trails
US7515828B2 (en) * 2005-03-15 2009-04-07 Fujitsu Limited System and method for implementing optical light-trails
US7616891B2 (en) * 2005-03-30 2009-11-10 Fujitsu Limited System and method for transmission and reception of traffic in optical light-trails
US7787763B2 (en) * 2005-04-04 2010-08-31 Fujitsu Limited System and method for protecting optical light-trails
US7457540B2 (en) * 2005-04-29 2008-11-25 Fujitsu Limited System and method for shaping traffic in optical light-trails
US7499465B2 (en) * 2005-07-19 2009-03-03 Fujitsu Limited Heuristic assignment of light-trails in an optical network
US7590353B2 (en) * 2005-08-31 2009-09-15 Fujitsu Limited System and method for bandwidth allocation in an optical light-trail
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US20070280688A1 (en) * 2006-04-21 2007-12-06 Matisse Networks Upgradeable optical hub and hub upgrade
US7801034B2 (en) * 2006-04-28 2010-09-21 Fujitsu Limited System and method for bandwidth allocation in an optical light-trail
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Also Published As

Publication number Publication date
US20040052530A1 (en) 2004-03-18
JP4598528B2 (en) 2010-12-15
JP2005539454A (en) 2005-12-22
WO2004028091A2 (en) 2004-04-01
EP1540890A2 (en) 2005-06-15

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