Low loss electrodes for electro-optic modulators
US7224869B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2005 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Mar 14, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/122
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electro-optic modulator includes a substrate, at least two parallel optical waveguides, at least one ground plane, at least one active electrode with at least two lower portions of the active electrode, and an upper portion connected to the lower portions, the lower portions spaced apart from each other, each of the two lower portions of the active electrode extending over one of the optical waveguides. An electro-optic phase modulator having at least one optical waveguide and at least one active electrode formed on a face of the substrate, the active electrode having a wider upper portion and a narrower lower portion, the lower portions of the active electrode aligned with and extending over one of the optical waveguides. A bridge electrode has at least one narrower lower portion, and a wider upper portion, the lower portion for being arranged over an optical waveguide formed in a substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.