Patent · US Active

Waveguide-to-waveguide couplers with multiple tapers

US10429582B1 · kind B1 · utility

37Cited by

19References

19Claims

0Family size

Assignee

GlobalFoundries Inc. · KY

Inventors

Yusheng Bian · Ballston Lake, US
Ajey Poovannummoottil Jacob · Watervliet, US
Steven M. Shank · Jericho, US

Key dates

Filing date	May 2, 2018
Grant date	Oct 1, 2019
Priority date	—
Expiry date	May 2, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG02B2006/12176
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Waveguide-to-waveguide couplers, systems that include waveguide-to-waveguide couplers, and methods of fabricating waveguide-to-waveguide couplers. A first waveguide is coupled to a first waveguide taper, and a second waveguide is coupled to a second waveguide taper. The first waveguide and the first waveguide taper are comprised of silicon, and the second waveguide and the second waveguide taper are comprised of silicon nitride. The second waveguide and the second waveguide taper are arranged in a vertical direction over the first waveguide and the first waveguide taper.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.