Tunable add-drop filters using two independent optical paths
US6795610B1 · kind B1 · utility
3Cited by
10References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 1, 2002 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Mar 20, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29395
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Techniques for adding and dropping a wavelength or band using two individual optical paths are disclosed. The two individual optical paths are configured to maintain one path active while the other is in stand-by setup or tuning mode. While one optical path is adding and dropping a wavelength, the other optical path can be calibrated for a new wavelength. When an optical switch switches from one path to another, a new wavelength to be added and dropped is effectuated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.