Traveling wave fiber optic interferometric sensor and method of polarization poling fiber optic
US4929050A · kind A · utility
27Cited by
13References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1988 |
| Grant date | May 29, 1990 |
| Priority date | — |
| Expiry date | Oct 31, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/105
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical light conducting fiber that has a D-shaped stress sensitive coating of PVF.sub.2 which covers substantially equal length segments of said fiber, so that each of said segments is separated by equal uncoated segments of substantially the same length as said coated segments. The fiber when used in an interferometer provides an antenna that is capable of sensing electromagnetic and other stress-inducting waves in the environment. The optical fiber is polarized by winding it on a specially designed spool, heating it and applying a high intensity electric field in the desired direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.