Waveguide mode expander having an amorphous-silicon shoulder
US9658401B2 · kind B2 · utility
10Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2015 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | May 27, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12152
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A waveguide mode expander couples a smaller optical mode in a semiconductor waveguide to a larger optical mode in an optical fiber. The waveguide mode expander comprises a shoulder and a ridge. In some embodiments, the ridge of the waveguide mode expander has a plurality of stages, the plurality of stages having different widths at a given cross section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.