Light-beam deflecting device with photonic crystal, optical switch using the same, and light-beam deflecting method
US6822784B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Apr 21, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/32
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A compact light-beam deflecting device with a photonic crystal is provided, which has the capability of deflecting a light beam incident on the photonic crystal by a controlled angle to output a transmitted light beam having a desired direction from the photonic crystal. This light-beam deflecting device comprises the photonic crystal designed to have a photonic band gap wavelength that is different from a wavelength of a light beam to be incident on the photonic crystal, and a deflection controller for applying an amount of energy to the photonic crystal to deflect the light beam incident on a side of the photonic crystal, and to provide a transmitted light beam, which forms the desired angle with respect to the light beam, from the other side of the photonic crystal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.