Method of manufacturing a fused fiber coupler
US5217517A · kind A · utility
6Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 27, 1992 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Mar 27, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2835
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To make a fused fiber coupler (1) which is especially suited as a pump coupler for use in fiber amplifiers, exhibits low sensitivity to polarization, and can be spliced in with low loss, commercially available single-mode fibers are employed. After completion of an elongating process and interruption of heat from a heat supply, the input-fiber pair (fiber ends 4, 5) and the output-fiber (fiber ends 6, 7) of two fused lengths of the fiber (2, 3) are twisted by 180.degree. about their common axis and fixed in this position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.