Wavelength-tunable optical ring resonators
US7616850B1 · kind B1 · utility
38Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2008 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Sep 12, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical ring resonator devices are disclosed that can be used for optical filtering, modulation or switching, or for use as photodetectors or sensors. These devices can be formed as microdisk ring resonators, or as open-ring resonators with an optical waveguide having a width that varies adiabatically. Electrical and mechanical connections to the open-ring resonators are made near a maximum width of the optical waveguide to minimize losses and thereby provide a high resonator Q. The ring resonators can be tuned using an integral electrical heater, or an integral semiconductor junction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.