JPWO2021260913A1 - - Google Patents

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Publication number
JPWO2021260913A1
JPWO2021260913A1 JP2022532202A JP2022532202A JPWO2021260913A1 JP WO2021260913 A1 JPWO2021260913 A1 JP WO2021260913A1 JP 2022532202 A JP2022532202 A JP 2022532202A JP 2022532202 A JP2022532202 A JP 2022532202A JP WO2021260913 A1 JPWO2021260913 A1 JP WO2021260913A1
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.)
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Application number
JP2022532202A
Other versions
JP7487774B2 (ja
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Publication of JPWO2021260913A1 publication Critical patent/JPWO2021260913A1/ja
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Publication of JP7487774B2 publication Critical patent/JP7487774B2/ja
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
    • G01M11/3136—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR for testing of multiple fibers
    • 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
    • H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
JP2022532202A 2020-06-26 2020-06-26 終端判定装置及び終端判定方法 Active JP7487774B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/025190 WO2021260913A1 (ja) 2020-06-26 2020-06-26 終端判定装置及び終端判定方法

Publications (2)

Publication Number Publication Date
JPWO2021260913A1 true JPWO2021260913A1 (ja) 2021-12-30
JP7487774B2 JP7487774B2 (ja) 2024-05-21

Family

ID=79282169

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022532202A Active JP7487774B2 (ja) 2020-06-26 2020-06-26 終端判定装置及び終端判定方法

Country Status (3)

Country Link
US (1) US20230231625A1 (ja)
JP (1) JP7487774B2 (ja)
WO (1) WO2021260913A1 (ja)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002221467A (ja) * 2001-01-25 2002-08-09 Kyushu Ando Denki Kk 光パルス試験器における光ファイバの遠端位置判定方法
US20050041902A1 (en) * 2003-08-20 2005-02-24 Frigo Nicholas J. Method, apparatus and system for minimally intrusive fiber identification
JP5399050B2 (ja) * 2008-11-17 2014-01-29 株式会社フジクラ 光ファイバ曲げ受光器
JP5637914B2 (ja) * 2011-03-28 2014-12-10 東日本電信電話株式会社 検知装置及び検知方法
JP5546023B2 (ja) * 2011-06-16 2014-07-09 日本電信電話株式会社 光ファイバ無切断型光入出力装置及び光ファイバ無切断型光入出力方法
JP2018096788A (ja) * 2016-12-12 2018-06-21 日本電信電話株式会社 現用心線判別装置
JP7318705B2 (ja) * 2019-06-03 2023-08-01 日本電信電話株式会社 判定装置及び判定方法

Also Published As

Publication number Publication date
WO2021260913A1 (ja) 2021-12-30
JP7487774B2 (ja) 2024-05-21
US20230231625A1 (en) 2023-07-20

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