The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2020
Filed:
Aug. 17, 2018
Hamed Dalir, El Cerrito, CA (US);
Yang Xia, Albany, CA (US);
Yuan Wang, El Cerrito, CA (US);
Xiang Zhang, Alamo, CA (US);
Hamed Dalir, El Cerrito, CA (US);
Yang Xia, Albany, CA (US);
Yuan Wang, El Cerrito, CA (US);
Xiang Zhang, Alamo, CA (US);
The Regents of the University of California, Oakland, CA (US);
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.