Acousto-optic devices
US7894125B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 2007 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Jun 16, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/32
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An acousto-optic module is provided, including a number of partially coupled optical resonators distributed within a dielectric medium and at least one acoustic transducer mounted on a surface of the dielectric medium for injecting an acoustic wave into the optical resonators so as to diffract light passing therethrough by means of Bragg diffraction. This acousto-optic module has been applied in particular to an improved tuneable optical filter in which an acoustic shear wave is generated and which travels through the acousto-optic module in a direction substantially parallel with a polarized light signal passing therethrough. The acousto-optic module is also applied to an improved optical frequency shifter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.