Edge couplers for photonics applications
US10816726B1 · kind B1 · utility
28Cited by
4References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 23, 2019 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Aug 23, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3652
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Structures for an edge coupler and methods of fabricating a structure for an edge coupler. A waveguide core and a coupler are formed over a layer stack that includes a first dielectric layer and a second dielectric layer over the first dielectric layer. The coupler includes a first plurality of grating structures and a transition structure including a second plurality of grating structures that are positioned between the first plurality of grating structures and the waveguide core. The first plurality of grating structures include respective widths that vary as a function of position relative to the transition structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.