Optical coupler utilizing low or zero birefringence optical fibers and a method of making same
US4756589A · kind A · utility
20Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1986 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Jan 15, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2843
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Polarization beam splitters/combiners or polarization insensitive beam splitters/combiners are manufactured from low or zero birefringence single mode optical fibre, rather than high birefringence fibre, by using a differential pulling technique to induce the appropriate amount of form birefringence, the fibres being stretched further than hitherto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.