Waveguide with gradient index material adjacent input coupler
US9759863B1 · kind B1 · utility
3Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2016 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | May 4, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A waveguide a core extending along a light propagation and a coupling layer adjacent one side of the core along the light propagation direction. A gradient index material is adjacent to at least one side of the coupling layer. The gradient index material has a first refractive index proximate the coupling layer and a second refractive index away from the coupling layer. The gradient index material is configured to direct light from an input facet to the core layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.