Optical waveguide, optical modulator and optical coupler
US8824836B2 · kind B2 · utility
86Cited by
6References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 1, 2011 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | May 10, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/2255
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide formed in a substrate including: a curved waveguide; and a splitter that is coupled to the curved waveguide and branches, wherein a low refraction index portion having an effective refraction index that is lower than that of a start point of the curved waveguide on an opposite side of the splitter is provided in a waveguide extending from the start point of the curved waveguide to the splitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.