JPS6459032A - Device for monitoring optical fiber line - Google Patents

Device for monitoring optical fiber line

Info

Publication number
JPS6459032A
JPS6459032A JP21595387A JP21595387A JPS6459032A JP S6459032 A JPS6459032 A JP S6459032A JP 21595387 A JP21595387 A JP 21595387A JP 21595387 A JP21595387 A JP 21595387A JP S6459032 A JPS6459032 A JP S6459032A
Authority
JP
Japan
Prior art keywords
optical fiber
reflected
light
optical
filter
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
JP21595387A
Other languages
Japanese (ja)
Inventor
Taisuke Murakami
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP21595387A priority Critical patent/JPS6459032A/en
Publication of JPS6459032A publication Critical patent/JPS6459032A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To easily specify an abnormal position of an optical fiber line without disconnecting the optical fiber, by outputting inspection light to an optical waveguide means and inputting reflected light, and detecting whether or not the optical fiber has abnormality. CONSTITUTION:A light pulse which is projected on a filter 6 through the optical fiber 3 by an optical time domain reflector OTDR7 is reflected by the filter 6 and sent in an upstream direction L1. The light pulse transmitted in the optical fiber is reflected at a rate of several % by ruggedness between the core and clad. If there is a broken position in the optical fiber, its reflected light increases by >=100 times, so its peak rising is observed. The broken position can be specified from the time when the peak rising occurs. The measurement principle of a 1st OTDR measuring instrument 7 is mentioned above, but a 2nd OTDR measuring instrument 8 is the same.
JP21595387A 1987-08-28 1987-08-28 Device for monitoring optical fiber line Pending JPS6459032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21595387A JPS6459032A (en) 1987-08-28 1987-08-28 Device for monitoring optical fiber line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21595387A JPS6459032A (en) 1987-08-28 1987-08-28 Device for monitoring optical fiber line

Publications (1)

Publication Number Publication Date
JPS6459032A true JPS6459032A (en) 1989-03-06

Family

ID=16680983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21595387A Pending JPS6459032A (en) 1987-08-28 1987-08-28 Device for monitoring optical fiber line

Country Status (1)

Country Link
JP (1) JPS6459032A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114071262A (en) * 2020-08-05 2022-02-18 华为技术有限公司 Optical network system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114071262A (en) * 2020-08-05 2022-02-18 华为技术有限公司 Optical network system
CN114071262B (en) * 2020-08-05 2022-09-23 华为技术有限公司 Optical network system

Similar Documents

Publication Publication Date Title
DE3176220D1 (en) Fibre-optical measuring equipment
CA2274505A1 (en) Distributed strain and temperature sensing system
ATE66296T1 (en) FIBER OPTIC DETECTOR WITH GOOD FUNCTIONING MONITORING.
ES458735A1 (en) Method for using on line optic fiber loss monitor
AU6069586A (en) Fibre optic sensor and method of use
DE69531245D1 (en) FIBER OPTICAL MEASURING METHOD AND DEVICE THEREFOR
JPS6459032A (en) Device for monitoring optical fiber line
JPS5489680A (en) Optical measuring method and optical measuring apparatus
CA2005607A1 (en) Method of analyzing guided optics components, optical fibres or optical guide networks by time reflectometry and reflectometer in the time sphere
MY146192A (en) Method and apparatus for monitoring optical signals in a planar lightwave circuit via in-plane filtering
ATE156637T1 (en) METHOD WITH DEVICE FOR DETECTING REFLECTIONS
JPS5726807A (en) Optical fiber core comparator
JPS5740658A (en) Measuring apparatus for electric field
JPS55128134A (en) Determination system for obstruction point of optical fiber
JPS55118242A (en) Optical sensing system
EP0397636B1 (en) Device and procedure for measuring with optical fibre sensors, and sensor utilised therewith
JPS6432732A (en) System for detecting optical link trouble
GB2273407B (en) Monitoring of optical communications fibres
JPS62159005A (en) Measuring method for length of optical fiber
SU875220A1 (en) Vibration sensor
ATE336115T1 (en) DEVICE FOR MONITORING AN OPTICAL SIGNAL TRANSMISSION NETWORK
JPH02187641A (en) Method of monitoring state of optical fiber line
SU859832A1 (en) Device for checking vibration parameters
JPS5682428A (en) Optical fiber sensor device
JPS5722528A (en) Measuring method for optical fiber transmission band