Sliced grating coupler with increased beam alignment sensitivity
US11747561B2 · kind B2 · utility
2Cited by
92References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2020 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Apr 28, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12107
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and methods relating to coupling radiation from an incident beam into a plurality of waveguides with a grating coupler are described. A grating coupler can have offset receiving regions and grating portions with offset periodicity to improve sensitivity of the grating coupler to misalignment of the incident beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.