Optical device and optical transmitter
US8472759B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 6, 2011 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jul 15, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device includes a substrate having an electro-optical effect; a main waveguide provided on the substrate; a first Mach-Zehnder part having first waveguides provided on the substrate and coupled with the main waveguide, and first DC electrodes provided between the first waveguides and on the first waveguides and used to generate DC electric fields in the first waveguides; and second Mach-Zehnder parts respectively associated with the first waveguides and comprising second waveguides coupled with each of the first waveguides and second DC electrodes used to generate DC electric fields in the second waveguides, at least one of the second Mach-Zehnder parts being configured to have no second DC electrode provided between the second waveguides and have the second DC electrodes on the second waveguides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.