Optical waveguide device
US10416388B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2018 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Mar 28, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/1228
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide device includes a substrate in which an optical waveguide is formed. The optical waveguide has a Y-branched structure in which light beams propagating through a main waveguide are branched into two parts, and a three-branched structure in which the optical waveguide is branched into three waveguides including the main waveguide and two sub-waveguides on both sides of the main waveguide at a front stage of the Y-branched structure. The main waveguide includes a linear waveguide portion in which a waveguide width is constant and a tapered waveguide portion in which the waveguide width gradually increases between the three-branched structure and the Y-branched structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.