Optical modulation device
US9817294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2015 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Jun 24, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/58
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical modulation device configured of a planar optical waveguide, includes: a light incidence unit which allows light to be incident on the planar optical waveguide; a Mach-Zehnder interferometer which includes a first optical splitter section branching the light incident on the light incidence unit, two arm portions guiding the light branched by the first optical splitter section, a phase modulation unit linearly disposed on each of the two arm portions, and a first optical coupler section combining the light guided from the two arm portions; a light launching unit which launches the light combined by the first optical coupler section from the planar optical waveguide; and a traveling-wave electrode which includes an input unit and an output unit, and applies a voltage to the phase modulation unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.