JPS6459032A - Device for monitoring optical fiber line - Google Patents
Device for monitoring optical fiber lineInfo
- 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
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.
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)
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 |
-
1987
- 1987-08-28 JP JP21595387A patent/JPS6459032A/en active Pending
Cited By (2)
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 |
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