JPWO2021176694A1 - - Google Patents

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Publication number
JPWO2021176694A1
JPWO2021176694A1 JP2022504921A JP2022504921A JPWO2021176694A1 JP WO2021176694 A1 JPWO2021176694 A1 JP WO2021176694A1 JP 2022504921 A JP2022504921 A JP 2022504921A JP 2022504921 A JP2022504921 A JP 2022504921A JP WO2021176694 A1 JPWO2021176694 A1 JP WO2021176694A1
Authority
JP
Japan
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.)
Granted
Application number
JP2022504921A
Other versions
JP7415192B2 (ja
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 filed Critical
Publication of JPWO2021176694A1 publication Critical patent/JPWO2021176694A1/ja
Application granted granted Critical
Publication of JP7415192B2 publication Critical patent/JP7415192B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/614—Coherent receivers comprising one or more polarization beam splitters, e.g. polarization multiplexed [PolMux] X-PSK coherent receivers, polarization diversity heterodyne coherent receivers
    • 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
    • H04B10/27—Arrangements for networking
    • H04B10/272—Star-type networks or tree-type networks
    • 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
    • H04B10/03—Arrangements for fault recovery
    • 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
    • H04B10/27—Arrangements for networking
    • H04B10/275—Ring-type networks
    • 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
    • H04B10/03—Arrangements for fault recovery
    • H04B10/032—Arrangements for fault recovery using working and protection systems
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07955—Monitoring or measuring power
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Optical Communication System (AREA)
  • Small-Scale Networks (AREA)
JP2022504921A 2020-03-06 2020-03-06 通信システム及びｏｌｔシステム Active JP7415192B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/009725 WO2021176694A1 (ja) 2020-03-06 2020-03-06 通信システム及びｏｌｔシステム

Publications (2)

Publication Number Publication Date
JPWO2021176694A1 true JPWO2021176694A1 (ja) 2021-09-10
JP7415192B2 JP7415192B2 (ja) 2024-01-17

Family

ID=77612941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022504921A Active JP7415192B2 (ja) 2020-03-06 2020-03-06 通信システム及びｏｌｔシステム

Country Status (3)

Country Link
US (1) US11936432B2 (ja)
JP (1) JP7415192B2 (ja)
WO (1) WO2021176694A1 (ja)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001136188A (ja) * 1999-09-22 2001-05-18 Lucent Technol Inc 光ネットワーク用パワースプリッタ
JP2001168802A (ja) * 1999-10-14 2001-06-22 Korea Advanced Inst Of Sci Technol 副搬送波多重方式両方向自己治癒環形光通信網
US20050019031A1 (en) * 2003-07-25 2005-01-27 Nokia Corporation Single-fiber protection in telecommunications networks
JP2009130505A (ja) * 2007-11-21 2009-06-11 Fujitsu Ltd 光伝送装置、光入力断検出閾値設定方法および光入力断検出閾値設定プログラム
JP2013070123A (ja) * 2011-09-20 2013-04-18 Fujitsu Ltd 光伝送システムおよび雑音抑制方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5058101A (en) * 1988-12-15 1991-10-15 Bell Communications Research, Inc. Coherent detection loop distribution system
NL1001441C2 (nl) * 1995-10-18 1997-04-22 Nederland Ptt Koppelinrichting voor het koppelen van optische verbindingen.
JPH11275028A (ja) * 1998-03-20 1999-10-08 Fujitsu Ltd 光通信システム
US6351582B1 (en) * 1999-04-21 2002-02-26 Nortel Networks Limited Passive optical network arrangement
US7272321B1 (en) * 1999-05-10 2007-09-18 Alloptic, Inc. Passive optical network
US6327400B1 (en) * 1999-10-05 2001-12-04 Lucent Technologies, Inc. Protection scheme for single fiber bidirectional passive optical point-to-multipoint network architectures
US7092634B2 (en) * 2001-06-01 2006-08-15 Korea Advanced Institute Of Science And Technology Bidirectional wavelength division multiplexed self-healing ring network composed of add fiber and drop fiber
US20050175343A1 (en) * 2004-02-03 2005-08-11 Utstarcom, Inc. System and apparatus for a carrier class WDM PON for increased split number and bandwidth
DE102005010610A1 (de) * 2005-03-08 2006-09-21 Siemens Ag Optisches Übertragungssystem
TWI351831B (en) * 2007-09-19 2011-11-01 Ind Tech Res Inst Self-healing ring-based passive optical network sy
DE102008005942A1 (de) * 2008-01-24 2009-07-30 Adva Ag Optical Networking Verfahren zur Protection eines passiven optischen Übertragungsnetzes sowie passives optisches Übertragungsnetz mit entsprechendem Protection-Mechanismus
EP2925013B1 (en) * 2009-10-16 2018-07-11 Xieon Networks S.à r.l. Optical network and method for processing data in an optical network
EP2541808B1 (en) * 2011-06-27 2017-03-08 ADVA Optical Networking SE Remote node and network architecture and data transmission method for a fiber-optic network, especially for low bit-rate data transmission
US9008501B2 (en) * 2013-02-13 2015-04-14 Tellabs Bedford, Inc. Network and method for providing redundancy in an optical distribution network
CN104125517B (zh) * 2013-04-26 2019-02-22 中兴通讯股份有限公司 一种光传输系统、模式耦合器和光传输方法
US20160112136A1 (en) * 2013-05-24 2016-04-21 Telefonaktiebolaget Lm Ericsson (Publ) Optical device, optical distribution network and respective methods performed thereby
CN105356963B (zh) * 2014-08-22 2018-09-28 中兴通讯股份有限公司 可变分光器的实现方法及可变分光器
WO2020018657A1 (en) * 2018-07-17 2020-01-23 Commscope Technologies Llc Fiber optical communication system using asymmetric optical waveguide splitter
EP3805827A1 (en) * 2019-10-07 2021-04-14 Corning Research & Development Corporation Fiber optic terminals and fiber optic networks having variable ratio couplers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001136188A (ja) * 1999-09-22 2001-05-18 Lucent Technol Inc 光ネットワーク用パワースプリッタ
JP2001168802A (ja) * 1999-10-14 2001-06-22 Korea Advanced Inst Of Sci Technol 副搬送波多重方式両方向自己治癒環形光通信網
US20050019031A1 (en) * 2003-07-25 2005-01-27 Nokia Corporation Single-fiber protection in telecommunications networks
JP2009130505A (ja) * 2007-11-21 2009-06-11 Fujitsu Ltd 光伝送装置、光入力断検出閾値設定方法および光入力断検出閾値設定プログラム
JP2013070123A (ja) * 2011-09-20 2013-04-18 Fujitsu Ltd 光伝送システムおよび雑音抑制方法

Also Published As

Publication number Publication date
US11936432B2 (en) 2024-03-19
JP7415192B2 (ja) 2024-01-17
US20230146851A1 (en) 2023-05-11
WO2021176694A1 (ja) 2021-09-10

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