Tunable narrow band optical filter
US6826327B1 · kind B1 · utility
1Cited by
15References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2001 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Jul 20, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/17
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method, an apparatus and a system are described for receiving an optical signal in an optical filter and routing the optical signal through the optical filter multiple times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.