Fiber depolarizer using heated fiber coil and fusion splicer and two polarization preserving fibers and method
US5486916A · kind A · utility
10Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1994 |
| Grant date | Jan 23, 1996 |
| Priority date | — |
| Expiry date | Jul 29, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2786
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus and methods for detecting when the birefringent axes of two polarization preserving fibers have their ends oriented into a position to locate the respective axes at 45 degrees. A fusion splicer and a heating controller for the fiber sensing coil are added to a reciprocal interferometer to produce a predetermined pattern of percent light intensity versus time in the returned light, when the axes are properly aligned for fusing. A computer may control the automatic making of depolarizers by this invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.