Optical switch, element therefor, and optical switching method
US6870983B2 · kind B2 · utility
1Cited by
1References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 2003 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Sep 3, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/28
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical switch, in which focal position of beams is adjusted to provide a high switching efficiency and a high stability in action without increasing a light source output of a control light, comprising a condensing means for making a signal light and a control light convergent and incident upon a nonlinear optical thin-film and wherein irradiation of the control light causes a change of the nonlinear optical thin-film in refractive index to thereby change the signal light into a transmitted light or a reflected light to take out the same as an output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.