Heating optical devices
US7177502B2 · kind B2 · utility
1Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2005 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Jun 13, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/585
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A thermo-optical device may use a heater to tune an optical device such as an optical switch, a Mach-Zehnder interferometer, or a variable optical attenuator, to mention a few examples. In some embodiments, polarization-dependent losses caused by the heating and power efficiency may be improved by defining a clad core including an optical core and cladding material on a substrate and covering the clad core on three sides with a heater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.