Optical modulator, optical modulator module, and optical transmitter module
US10754179B2 · kind B2 · utility
3Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2019 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Jul 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical modulator includes an optical waveguide of a ridge type formed of a thin film of a dielectric material having an electro-optic effect over a substrate, a buffer layer covering the optical waveguide, and a signal electrode provided over the optical waveguide via the buffer layer, wherein a width of the signal electrode is greater than a ridge width of the optical waveguide and wherein the signal electrode covers at least one of sidewalls of a ridge of the optical waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.