Optical filter device for temperature dependence control
US6912346B2 · kind B2 · utility
4Cited by
5References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 11, 2002 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Sep 25, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/10023
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provides an optical filter device which is particularly suitable for compensating the gain produced by an erbium doped fiber amplifier due to temperature variations. The device has a tapered fiber filter mounted on a rigid substrate, such as aluminium, in such a manner that the tapered portion of the filter does not come in contact with the substrate. The fiber of the filter is preferably made of silica.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.