JPS53119068A - Fault point aiming system of optical cable - Google Patents

Fault point aiming system of optical cable

Info

Publication number
JPS53119068A
JPS53119068A JP3337177A JP3337177A JPS53119068A JP S53119068 A JPS53119068 A JP S53119068A JP 3337177 A JP3337177 A JP 3337177A JP 3337177 A JP3337177 A JP 3337177A JP S53119068 A JPS53119068 A JP S53119068A
Authority
JP
Japan
Prior art keywords
optical cable
fault point
aiming system
point aiming
reflection points
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.)
Granted
Application number
JP3337177A
Other languages
Japanese (ja)
Other versions
JPS5510855B2 (en
Inventor
Tetsuya Miki
Ikutaro Kobayashi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP3337177A priority Critical patent/JPS53119068A/en
Publication of JPS53119068A publication Critical patent/JPS53119068A/en
Publication of JPS5510855B2 publication Critical patent/JPS5510855B2/ja
Granted legal-status Critical Current

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
    • H04B10/07—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
    • H04B10/071—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)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE:To estimate the fault point of an optical cable by installing fixed reflection points on the way of an optical transmission line and making use of the presence or not and loss increase of the reflection waves from the fixed reflection points.
JP3337177A 1977-03-28 1977-03-28 Fault point aiming system of optical cable Granted JPS53119068A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3337177A JPS53119068A (en) 1977-03-28 1977-03-28 Fault point aiming system of optical cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3337177A JPS53119068A (en) 1977-03-28 1977-03-28 Fault point aiming system of optical cable

Publications (2)

Publication Number Publication Date
JPS53119068A true JPS53119068A (en) 1978-10-18
JPS5510855B2 JPS5510855B2 (en) 1980-03-19

Family

ID=12384715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3337177A Granted JPS53119068A (en) 1977-03-28 1977-03-28 Fault point aiming system of optical cable

Country Status (1)

Country Link
JP (1) JPS53119068A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5640737A (en) * 1979-09-11 1981-04-17 Asahi Optical Co Ltd Damage detector for optical fiber for laser power transmission
JPS5777936A (en) * 1980-11-01 1982-05-15 Asahi Optical Co Ltd Safety device for detecting transmission fiber trouble
US4928004A (en) * 1988-06-20 1990-05-22 Center For Innovative Technology Method and apparatus for sensing strain
US4936649A (en) * 1989-01-25 1990-06-26 Lymer John D Damage evaluation system and method using optical fibers
EP0432734A2 (en) * 1989-12-11 1991-06-19 Nippon Telegraph And Telephone Corporation A device and a method for distinguishing faults employed in an optical transmission system
US5592577A (en) * 1994-10-21 1997-01-07 Fujitsu Limited Optical transmission line enabling definition of a fault point and a method for defining the fault point

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0183852U (en) * 1987-11-27 1989-06-05
JP6376293B2 (en) * 2015-06-25 2018-08-22 日本電気株式会社 Device, identification method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5640737A (en) * 1979-09-11 1981-04-17 Asahi Optical Co Ltd Damage detector for optical fiber for laser power transmission
JPS6338654B2 (en) * 1979-09-11 1988-08-01 Asahi Optical Co Ltd
JPS5777936A (en) * 1980-11-01 1982-05-15 Asahi Optical Co Ltd Safety device for detecting transmission fiber trouble
JPH033174B2 (en) * 1980-11-01 1991-01-17 Asahi Optical Co Ltd
US4928004A (en) * 1988-06-20 1990-05-22 Center For Innovative Technology Method and apparatus for sensing strain
US4936649A (en) * 1989-01-25 1990-06-26 Lymer John D Damage evaluation system and method using optical fibers
EP0432734A2 (en) * 1989-12-11 1991-06-19 Nippon Telegraph And Telephone Corporation A device and a method for distinguishing faults employed in an optical transmission system
US5592577A (en) * 1994-10-21 1997-01-07 Fujitsu Limited Optical transmission line enabling definition of a fault point and a method for defining the fault point

Also Published As

Publication number Publication date
JPS5510855B2 (en) 1980-03-19

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