Optical device
US7881574B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2009 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Aug 8, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/34
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is an optical device, which includes a substrate, a first cladding disposed on the substrate, a first optical waveguide extended in a first direction on the first cladding, and having a first refractive index, a side grating formed in at least one side of the first optical waveguide, a second optical waveguide filling a space of the side grating, extended in a second direction across the first direction on the first cladding, and having a second refractive index, and a second cladding disposed on the second optical waveguide, and having a third refractive index, wherein the first refractive index is greater than the second refractive index, and the second refractive index is greater than the third refractive index.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.