Method of modifying mode size of an optical beam, using a waveguide mode expander having non-crystalline silicon features
US10345521B2 · kind B2 · utility
5Cited by
83References
12Claims
0Family size
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Key dates
| Filing date | May 15, 2018 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | May 15, 2038 |
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.