JPS5289949A - Optical fiber apparatus - Google Patents

Optical fiber apparatus

Info

Publication number
JPS5289949A
JPS5289949A JP680976A JP680976A JPS5289949A JP S5289949 A JPS5289949 A JP S5289949A JP 680976 A JP680976 A JP 680976A JP 680976 A JP680976 A JP 680976A JP S5289949 A JPS5289949 A JP S5289949A
Authority
JP
Japan
Prior art keywords
optical fiber
fiber apparatus
phase
breakage position
comparing
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
JP680976A
Other languages
Japanese (ja)
Inventor
Munehiko Nagataka
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP680976A priority Critical patent/JPS5289949A/en
Publication of JPS5289949A publication Critical patent/JPS5289949A/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)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To detect the optical fiber breakage position at high accuracy by comparing the modulation phase of an incident light signal and the phase of the reflected light from the breakage position of an optical fiber.
JP680976A 1976-01-23 1976-01-23 Optical fiber apparatus Pending JPS5289949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP680976A JPS5289949A (en) 1976-01-23 1976-01-23 Optical fiber apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP680976A JPS5289949A (en) 1976-01-23 1976-01-23 Optical fiber apparatus

Publications (1)

Publication Number Publication Date
JPS5289949A true JPS5289949A (en) 1977-07-28

Family

ID=11648511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP680976A Pending JPS5289949A (en) 1976-01-23 1976-01-23 Optical fiber apparatus

Country Status (1)

Country Link
JP (1) JPS5289949A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50156949A (en) * 1974-06-07 1975-12-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50156949A (en) * 1974-06-07 1975-12-18

Similar Documents

Publication Publication Date Title
JPS5238939A (en) Optical coupler
JPS5342846A (en) Photo coupling device
JPS53113572A (en) Dispersion characteristic measuring device of optical fiber
JPS5289949A (en) Optical fiber apparatus
JPS545753A (en) Photo switch
JPS51128095A (en) Device for measuring abrasion of grind-stone
JPS5690227A (en) Optical fiber temperature detector
JPS5328447A (en) Measurement of length of optical fiber and device therefor
JPS6475928A (en) Optical heterodyne detector
JPS5299842A (en) Measurement of wavelength dispersion
JPS51151159A (en) Measuring instrument
JPS53136848A (en) Optical branching device
JPS5373153A (en) Measuring apparatus for dispersion of optical fibers
JPS52149140A (en) Wavelength dispersion measuring system for optical fibers
JPS541051A (en) Producing apparatus for liquid crystal display element
JPS56130606A (en) Optical measuring device for thickness of transparent material
JPS5435759A (en) Measuring method of numerical aperture of optical fibers
JPS51133048A (en) Optical fiber monitor
JPS5355146A (en) Optical fiber apparatus
JPS537391A (en) Measuring apparatus for reflection factor
JPS52110683A (en) Measuring method and apparatus for initial reaction velocity
JPS55163470A (en) Measuring method for delay time of laser range finding system
JPS5377660A (en) Distance measuring device
JPS5269376A (en) Magnetic optical photometer
JPS5298546A (en) Detector for measuring transmission characteristics of optical fiber