Optical waveguide device with suppressed DC drift
US5214724A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1991 |
| Grant date | May 25, 1993 |
| Priority date | — |
| Expiry date | Feb 28, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/21
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide device includes an optical waveguide formed on a surface of a substrate having an electrooptical effect, and a pair of electrodes formed on corresponding regions above the optical waveguide and receiving a driving electric signal thereacross. By applying the electric signal to the electrodes, an electric field is formed in a vicinity of the optical waveguide. By changing a distribution of the electric field in accordance with a change in a frequency of the electric signal, it is possible to suppress a DC drift of the device to effectively compensate a fluctuation in operational characteristics due to the DC drift, stress of the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.