Optical device having domain structure and method for manufacturing the same
US5249250A · kind A · utility
18Cited by
3References
2Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 10, 1991 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Jul 10, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device having a periodic inverted domain construction is used for second harmonic generating devices or the like. The optical device comprises a ferroelectric crystal substrate which is provided in this surface with a periodic inverted domain structure consisting of a plurality of parallel inverted domain regions arranged at intervals. The thickness t and width w of the inverted domain regions and the thickness T of the ferroelectric crystal substrate meet the criteria expressed by: t/w.gtoreq.1 and 0.1<t/T.ltoreq.1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.