Light modulation employing single crystal optical waveguides of niobium-doped lithium tantalate
US4056304A · kind A · utility
17Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1976 |
| Grant date | Nov 1, 1977 |
| Priority date | — |
| Expiry date | Nov 22, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/2955
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide of niobium-doped lithium tantalate single crystal has excellent low loss waveguiding properties with strong electro-optic behavior. The waveguides are made by depositing a film of niobium on a polished lithium tantalate crystal, annealing the crystal so as to diffuse the niobium into the crystal and cooling the crystal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.