Waveguide mode expander having an amorphous-silicon shoulder
US10001600B2 · kind B2 · utility
4Cited by
78References
9Claims
0Family size
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Key dates
| Filing date | Apr 14, 2017 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Apr 14, 2037 |
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.