Method and apparatus for monitoring mechanical fiber stress of optical fiber spans
US9337921B2 · kind B2 · utility
2Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2013 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | May 7, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/077
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The length of the optical fiber section under tension expands by a certain amount that is proportional to the level of tension applied to it. Monitoring the variations in the phase of the arriving signal allows to discover a fiber that is subject to a certain level of mechanical tension. With the method and apparatus according to the present invention it is possible to protect optical communication channels against failures in an optical transmission fiber that are caused by any kind of mechanical disturbances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.