Optical fiber coupler having hybrid tapered waveguide segments and metamaterial segments
US11467343B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2021 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Feb 9, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12061
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical coupler structures include a waveguide having waveguide metamaterial segments aligned along a first line. A second insulator is on the first insulator and the waveguide metamaterial segments. A coupler structure is in the second insulator and has coupler metamaterial segments aligned along a second line. The first line and the second line are parallel and within a plane. A portion of the waveguide overlaps a portion of the coupler structure. The waveguide metamaterial segments intersect the plane and have first widths perpendicular to the plane, and the first widths have a first taper along the first line. The coupler metamaterial segments intersect the plane and have second widths in the direction perpendicular to the plane. The second widths have a second taper along the second line that is different from the first taper of the first widths where the waveguide overlaps the coupler structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.