Optical control element
US9081214B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2010 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | May 28, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical control element capable of efficiently removing unnecessary higher mode light without complicating a manufacturing process of the optical control element is provided. The optical control element includes a substrate having an electro-optical effect, optical waveguides that are formed on the substrate, and a control electrode that controls light waves propagating through the optical waveguides, and the optical waveguides include an output waveguide portion which derives fundamental mode light, and a subsidiary waveguide portion which is connected to the output waveguide portion and derives higher mode light, and removal means is formed in contact with the subsidiary waveguide portion, for removing the higher mode light propagating through the subsidiary waveguide portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.