Dual fiber variable optical attenuator
US6584271B2 · kind B2 · utility
2Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2000 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | May 22, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/266
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A variable optical attenuator (200) comprises a dual fiber collimator (202) and a reflection component (206) separated by a linear moveable ND filter (204). The collimator (202) includes a ferrule (304) with dual fibers (310, 320) therein, and a GRIN lens (302) spaced from the ferrule (304) with a distance in compliance with the distance between the reflection component (206) and the GRIN lens (302).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.