Tunable optical coupler using photosensitive glass
US5647040A · kind A · utility
29Cited by
29References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1995 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Dec 14, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2856
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical coupler 10 has two fibers 20, 30 that are adjacent each other in a coupling region 12. One of the fibers has a clad doped with a photosensitive glass, such as germania. The photosensitive glass is exposed to suitable radiation to alter the index of refraction of fiber and tune the coupler 10 to the selected coupling frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.