Patent · US Active

Edge couplers with stacked layering

US11215756B2 · kind B2 · utility

4Cited by

5References

7Claims

0Family size

Assignee

GLOBALFOUNDRIES U.S. Inc. · US

Inventors

Yusheng Bian · Ballston Lake, US
Roderick A. Augur · Hopewell Junction, US
Michal Rakowski · Ballston Lake, US
Kenneth J. Giewont · Hopewell Junction, US
Karen A. Nummy · Newburgh, US
Kevin K. Dezfulian · Arlington, US
Bo Peng · Malta, US

Key dates

Filing date	Apr 27, 2020
Grant date	Jan 4, 2022
Priority date	—
Expiry date	Apr 27, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/4206
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Structures including an edge coupler and methods of fabricating a structure including an edge coupler. The edge coupler includes a waveguide core, and a shaped layer is positioned over a portion of the waveguide core. The waveguide core is comprised of a first material, and the shaped layer is comprised of a second material different in composition from the first material. The first material may be, for example, single-crystal silicon, and the second material may be, for example, silicon nitride.

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