Travelling wave-type optical modulator
US6556727B2 · kind B2 · utility
11Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2001 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Sep 17, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0305
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A travelling wave-type optical modulator has a substrate made of an electro-optic material, optical waveguides fabricated on the top surface of the substrate, and electrodes for modulating an optical wave through the optical waveguide. The substrate is partially thinned from the bottom surface of the substrate to form a first thinned portion and a second thinned portion so that the thickness of the first thinned portion is set to be larger than the thickness of the second thinned portion, and the optical waveguide is positioned in the first thinned portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.