Patent · US Active

Waveguide intersections incorporating a waveguide crossing

US10816725B2 · kind B2 · utility

4Cited by

5References

4Claims

0Family size

Assignee

GlobalFoundries Inc. · KY

Inventors

Yusheng Bian · Ballston Lake, US
Ajey Poovannummoottil Jacob · Watervliet, US
Abu Thomas · Oak Park, US

Key dates

Filing date	Sep 18, 2018
Grant date	Oct 27, 2020
Priority date	—
Expiry date	Sep 18, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG02B2006/12195
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Structures with waveguides in multiple levels and methods of fabricating a structure that includes waveguides in multiple levels. A waveguide crossing has a first waveguide and a second waveguide arranged to intersect the first waveguide. A third waveguide is displaced vertically from the waveguide crossing, The third waveguide includes a portion having an overlapping arrangement with a portion of the first waveguide. The overlapping portions of the first and third waveguides are configured to transfer optical signals between the first waveguide and the third waveguide.

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