Electro-optic device
US5189713A · kind A · utility
17Cited by
7References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1990 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Nov 14, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/21
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In electro-optic waveguide devices such as directional couplers and Mach-Zehnder interferometers having travelling-wave electrodes which overlie the waveguides, temperature sensitivity is reduced by arranging the ground plane electrode to overlie only part of the width of its associated waveguide portion. The invention has particular application to z-cut lithium niobate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.