JP7424391B2 - 光ファイバセンシングシステム、中継装置及びセンシング方法 - Google Patents

光ファイバセンシングシステム、中継装置及びセンシング方法 Download PDF

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Publication number
JP7424391B2
JP7424391B2 JP2021562459A JP2021562459A JP7424391B2 JP 7424391 B2 JP7424391 B2 JP 7424391B2 JP 2021562459 A JP2021562459 A JP 2021562459A JP 2021562459 A JP2021562459 A JP 2021562459A JP 7424391 B2 JP7424391 B2 JP 7424391B2
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Japan
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optical fiber
optical
cable
sensing
light
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Japanese (ja)
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JPWO2021111699A5 (https=
JPWO2021111699A1 (https=
Inventor
隆 矢野
誠 齋藤
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NEC Corp
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NEC Corp
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
    • G01D5/35354—Sensor working in reflection
    • G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
    • 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
    • H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
    • H04B10/0775—Performance monitoring and measurement of transmission parameters

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Optical Transform (AREA)
JP2021562459A 2019-12-04 2020-09-14 光ファイバセンシングシステム、中継装置及びセンシング方法 Active JP7424391B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019219922 2019-12-04
JP2019219922 2019-12-04
PCT/JP2020/034644 WO2021111699A1 (ja) 2019-12-04 2020-09-14 光ファイバセンシングシステム、中継装置及びセンシング方法

Publications (3)

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JPWO2021111699A1 JPWO2021111699A1 (https=) 2021-06-10
JPWO2021111699A5 JPWO2021111699A5 (https=) 2022-07-29
JP7424391B2 true JP7424391B2 (ja) 2024-01-30

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US (1) US20220399938A1 (https=)
JP (1) JP7424391B2 (https=)
WO (1) WO2021111699A1 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021111691A1 (ja) * 2019-12-03 2021-06-10 日本電気株式会社 光ファイバセンシングシステム、測定装置及び測定方法
EP4677776A1 (en) * 2023-03-10 2026-01-14 BAE SYSTEMS plc Apparatus and method
WO2025010267A1 (en) * 2023-07-05 2025-01-09 Subcom, Llc Monitoring in distributed acoustic sensing systems
JP2026043660A (ja) * 2024-08-29 2026-03-12 株式会社オーシーシー 遠隔励起を用いた光増幅中継システム

Citations (5)

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US20030198425A1 (en) 1998-12-18 2003-10-23 Future Fibre Technologies Pty Ltd Apparatus and method for monitoring a structure using a counter-propagating signal method for locating events
JP2011164074A (ja) 2010-02-15 2011-08-25 Nippon Telegr & Teleph Corp <Ntt> 光ケーブル敷設環境測定方法、光ケーブル敷設環境測定装置及び光ケーブル敷設環境測定システム
JP2012501124A (ja) 2008-08-29 2012-01-12 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 光ネットワークにおけるファイバの監視方法
US20150241302A1 (en) 2012-08-29 2015-08-27 Jean Pierre von der Weid Device for monitoring an optical fibre
US20170343389A1 (en) 2014-12-03 2017-11-30 Silixa Ltd. Range extension for optical fiber sensing systems

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JPS6161038A (ja) * 1984-08-31 1986-03-28 Nippon Telegr & Teleph Corp <Ntt> 通信用ケ−ブル保守方式
JP3100386B2 (ja) * 1990-06-19 2000-10-16 住友電気工業株式会社 光通信システム
JPH04285835A (ja) * 1991-03-14 1992-10-09 Fujikura Ltd 光ファイバ通信線路の特性検出方法または特性検出装置
JP2782124B2 (ja) * 1991-07-05 1998-07-30 株式会社フジクラ 光ファイバケーブル
JPH0546144U (ja) * 1991-11-14 1993-06-18 日立電線株式会社 光通信システム
JPH05241030A (ja) * 1992-02-27 1993-09-21 Sumitomo Electric Ind Ltd 分布型光ファイバセンサ
JPH08256106A (ja) * 1995-03-17 1996-10-01 Fujitsu Ltd 光増幅海底伝送システムの分散補償装置
JP3016355B2 (ja) * 1996-02-05 2000-03-06 日本電気株式会社 通信・観測融合海底ケーブルシステム
JPH09210847A (ja) * 1996-02-06 1997-08-15 Furukawa Electric Co Ltd:The 光伝送システムにおける光中継器の監視方法とそれに用いられる光中継器
JP2001345759A (ja) * 2000-06-02 2001-12-14 Mitsubishi Electric Corp 光中継装置
CN101995320B (zh) * 2009-08-27 2012-03-21 华为海洋网络有限公司 检测水下设备故障的方法、装置及设备
US8328431B2 (en) * 2010-02-01 2012-12-11 Tyco Electronics Subsea Communications Llc Coupling multiple conductor undersea optical cables to an undersea device with an isolated bypass conductive path across the undersea device
EP2819321A1 (en) * 2013-06-27 2014-12-31 Alcatel Lucent Packet optical add drop multiplexing node for an optical ring network
GB2535875A (en) * 2013-10-17 2016-08-31 Halliburton Energy Services Inc Distributed sensing in an optical fiber network
JP2015200728A (ja) * 2014-04-07 2015-11-12 富士通株式会社 光分岐器、光増幅装置及び光増幅方法
CN107925475A (zh) * 2015-08-03 2018-04-17 日本电气株式会社 光分插设备和光分插方法
JP2017194306A (ja) * 2016-04-19 2017-10-26 三菱重工業株式会社 光ファイバセンシングシステム及びライザー管
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030198425A1 (en) 1998-12-18 2003-10-23 Future Fibre Technologies Pty Ltd Apparatus and method for monitoring a structure using a counter-propagating signal method for locating events
JP2012501124A (ja) 2008-08-29 2012-01-12 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 光ネットワークにおけるファイバの監視方法
JP2011164074A (ja) 2010-02-15 2011-08-25 Nippon Telegr & Teleph Corp <Ntt> 光ケーブル敷設環境測定方法、光ケーブル敷設環境測定装置及び光ケーブル敷設環境測定システム
US20150241302A1 (en) 2012-08-29 2015-08-27 Jean Pierre von der Weid Device for monitoring an optical fibre
US20170343389A1 (en) 2014-12-03 2017-11-30 Silixa Ltd. Range extension for optical fiber sensing systems

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JPWO2021111699A1 (https=) 2021-06-10
US20220399938A1 (en) 2022-12-15
WO2021111699A1 (ja) 2021-06-10

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