Optical device including buried optical waveguides and output couplers
US10996408B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2019 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jul 19, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12061
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Embodiments of the present disclosure are directed toward techniques and configurations for an optical coupler including an optical waveguide to guide light to an optical fiber. In embodiments, the optical waveguide includes a tapered segment to propagate the received light to the optical fiber. In embodiments, the tapered segment is buried below a surface of a semiconductor substrate to transition the received light within the semiconductor substrate from a first optical mode to a second optical mode to reduce a loss of light during propagation of the received light from the optical waveguide to the optical fiber. In embodiments, the surface of the semiconductor substrate comprises a bottom planar surface of a silicon photonic chip that includes at least one or more of passive or active photonic components. Other embodiments may be described and/or claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.