Adiabatic elliptical optical coupler device
US9726821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2015 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Dec 1, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12121
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An adiabatic elliptical optical coupler device is provided comprising: a substrate having an edge; a first waveguide on the substrate, the first waveguide comprising a constant-width region and a tapered region terminating at the edge of the substrate, the tapered region having a smaller width at the edge than at the constant-width region; and, a pair of second waveguides on the substrate, and located on either side of the tapered region, each of the pair of the second waveguides terminating at the edge at a first end and extending to a second end adjacent the constant-width region, and distal the first end; at least a portion of each of the pair of second waveguides being tapered, and optically coupled to the first waveguide to transition a mode of an optical signal in the first waveguide from an elliptical mode at the edge towards a confined mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.