Method of making optical waveguides and product by the process
US4037005A · kind A · utility
11Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 6, 1975 |
| Grant date | Jul 19, 1977 |
| Priority date | — |
| Expiry date | Mar 6, 1995 |
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.