Wide-band optical modulator
US4866406A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1987 |
| Grant date | Sep 12, 1989 |
| Priority date | — |
| Expiry date | Aug 17, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0356
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a wide band optical modulator comprising an optical waveguide which is provided on a substrate and comprises a substance having electrooptic effects, a laminate which is provided on the optical waveguide and comprises a substance having a refractive index smaller than that of the optical waveguide, and two traveling-wave electrodes which are provided opposite to each other on the parallel side surfaces of the laminate in the traveling direction of light so as to hold the laminate therebetween. When the laminate provided on the optical waveguide is replaced by a gap, similar effects to those of the above-described optical modulator can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.