Multi-mode forked grating coupler
US10061080B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2017 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Oct 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12147
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device and system for coupling optical vortex multiplexed light into and out of a photonic integrated circuit. The multi-mode forked grating coupler device comprises: (i) a multi-mode forked grating structure configured to receive at least one optical vortex multiplexed light beam, wherein the multi-mode forked grating structure comprises at least one forked region positioned amidst a plurality of grooves, wherein the forked region comprises a single groove forking into two grooves, wherein the single groove is noncontiguous with the two grooves, and wherein the plurality of grooves comprise a central bending region; (ii) an optical waveguide; and (iii) a tapered portion connecting the forked grating structure and the multi-mode optical “bus” waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.