Optical waveguide device
US10101630B2 · kind B2 · utility
16Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2017 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Apr 27, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/50
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device may include at least two waveguides with different propagation constants. Each waveguide is associated with a grating antenna with a grating period selected to emit light at the same emission angle despite the different propagation constants. Each waveguide may be part of an optical path that includes phase shifters. Additionally, the waveguides may be formed in a waveguide layer that is separate from a perturbation layer in which the grating antennas as formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.