JPS53115252A - Optical fiber fault detector - Google Patents

Optical fiber fault detector

Info

Publication number
JPS53115252A
JPS53115252A JP2931077A JP2931077A JPS53115252A JP S53115252 A JPS53115252 A JP S53115252A JP 2931077 A JP2931077 A JP 2931077A JP 2931077 A JP2931077 A JP 2931077A JP S53115252 A JPS53115252 A JP S53115252A
Authority
JP
Japan
Prior art keywords
optical fiber
fault detector
fiber fault
period
section
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.)
Pending
Application number
JP2931077A
Other languages
Japanese (ja)
Inventor
Motoo Shimizu
Yoshio Ogushi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2931077A priority Critical patent/JPS53115252A/en
Publication of JPS53115252A publication Critical patent/JPS53115252A/en
Pending 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 detect the fault position of an optical fiber transmission path of a long section by selecting the repetitive period of a detecting photo pulse signal train shorter than the time at which light reciprocates in the longest section that permits fault detection threby periodically changing said period.
JP2931077A 1977-03-18 1977-03-18 Optical fiber fault detector Pending JPS53115252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2931077A JPS53115252A (en) 1977-03-18 1977-03-18 Optical fiber fault detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2931077A JPS53115252A (en) 1977-03-18 1977-03-18 Optical fiber fault detector

Publications (1)

Publication Number Publication Date
JPS53115252A true JPS53115252A (en) 1978-10-07

Family

ID=12272640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2931077A Pending JPS53115252A (en) 1977-03-18 1977-03-18 Optical fiber fault detector

Country Status (1)

Country Link
JP (1) JPS53115252A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5676027A (en) * 1979-11-27 1981-06-23 Fujitsu Ltd Faulty point detection system for optical fiber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5676027A (en) * 1979-11-27 1981-06-23 Fujitsu Ltd Faulty point detection system for optical fiber

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