Waveguide grating-based wavelength selective switch actuated by thermal mechanism
US6973231B2 · kind B2 · utility
2Cited by
32References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2004 |
| Grant date | Dec 6, 2005 |
| Priority date | — |
| Expiry date | Feb 21, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0049
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A wavelength selective switch. The switch comprises an input waveguide for carrying an optical signal having a wavelength λi. Also included is an output waveguide having a Bragg grating adapted for coupling the wavelength λi into the output waveguide in a coupling zone. Finally, provided is a heater element that can selectively provide thermal energy to the coupling zone such that the Bragg grating does not couple the wavelength λi.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.