Bandwidth variable wavelength router and method of operation
US6515786B1 · kind B1 · utility
4Cited by
74References
50Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 3, 2001 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Aug 3, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/313
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device comprises a first birefringent crystal having a first length, a second birefringent crystal having a second length, and a dynamic polarization rotator. An optical signal propagating through the first and second birefringent crystals has an effective optical path length based, at least in part, upon the first length of the first birefringent crystal and the second length of the second birefringent crystal. The dynamic polarization rotator adjusts the effective optical path length of the optical signal in response to a control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.