Patent · US Active

Double-layer graphene optical modulators and methods of fabrication thereof

US10775651B2 · kind B2 · utility

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2References

18Claims

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Assignee

The Regents of the University of California · US

Inventors

Hamed Dalir · Tokyo, JP
Yang Xia · Beijing, CN
Yuan Wang · Beijing, CN
Xiang Zhang · 丈亭镇, CN

Key dates

Filing date	Aug 17, 2018
Grant date	Sep 15, 2020
Priority date	—
Expiry date	Aug 17, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG02F2202/10
WIPO fieldOptics
WIPO sectorInstruments

Abstract

This disclosure provides systems, methods, and apparatus related to optical modulators. In one aspect, a device includes a substrate, a first electrically insulating material disposed over the substrate, a first graphene layer and a second graphene layer disposed in the first electrically insulating material and being separated by the first electrically insulating material, and a waveguide disposed on the first electrically insulating material. At least a portion of the second graphene layer overlays at least a portion of the first graphene layer. The waveguide overlays both the first graphene layer and the second graphene layer.

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