Hybrid wavelength selective optical router and switch
US6389188B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2000 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Feb 23, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0049
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical assembly including a wavelength selective filter (114) in combination with a collimator (112). An input port is configured to provide an optical signal containing a plurality of optical channels to the collimator and then to the wavelength selective filter. The hybrid selective optical router allows a channel or segment of adjacent channels (118) to be dropped from the optical signal with minimal signal degradation to the dropped or expressed channels. In a particular embodiment, a pair of wavelength selective routers (300, 326) are combined with a switched optical directing element (308) and other components to provide an ADD/DROP switch. In a further embodiment, an ADD/DROP switch is provided with a single movable mirror, and no fixed mirrors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.