Arrangement method of metal electrode and transparent electrode in optical waveguide device and optical modulator using the optical waveguide
US6853757B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 23, 2002 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Sep 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure relates to a device for modulating light emitted by a laser, including an optical substrate that has an electro-optical effect, at least one optical waveguide formed near a front face of the optical substrate, a first electrode that is formed with a conductive transparent film so that a part of the optical waveguide may be covered and is used for applying an electric field to the optical waveguide, a second electrode that is paired with the first electrode and is used for applying an electric field to the optical waveguide, and a third electrode that is formed with a metal film in a position that is shifted from a position just above the optical waveguide and is electrically connected with the first electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.