Optical control device
US5790719A · kind A · utility
27Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1996 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Nov 27, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/2255
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical control device include a substrate having an electrooptic effect, the substrate having ridges with optical waveguides. A buffer layer is formed on the substrate surface, and electrodes are provided. The electrodes includes at least one ground electrode, and a central electrode that is formed on the buffer layer over a ridge. The width of the central electrode on the side where the central electrode contacts the buffer layer is larger than the width of the optical waveguide. Because of this construction, the optical control device can achieve constant characteristics and a broad bandwidth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.