Electro-optic crystal, diffraction-based, beam-steering element
US7557979B2 · kind B2 · utility
1Cited by
2References
17Claims
0Family size
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Key dates
| Filing date | Aug 6, 2007 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Dec 6, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A beam-steering element made of a more optically-active material, potassium tantalate niobate, with an improved diffraction efficiency, having a plurality of electrode layers and one electro-optic crystal layer interposed between every two adjacent electrode layers. Each electro-optic crystal layer and the electrode layer adjacent thereto have an aspect ratio of about 1:1. The electrode layers and the electro-optic crystal layers are interposed between two substrates. Preferably, the substrates are transparent to an incoming beam to be modulated by the electro-optic crystal layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.