Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hyun-jong Chung0
Seong-ho Cho0
Date of Patent
May 26, 2015
0Patent Application Number
135508020
Date Filed
July 17, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An optical modulator includes a first graphene and a second graphene on an upper surface of a semiconductor layer, a first electrode on the first graphene, and a second electrode on the second graphene. Respective side surfaces of the first graphene and the second graphene are separated from each other. A first ridge portion of the semiconductor layer and a second ridge portion on the second graphene constitute an optical waveguide, and the first and second graphenes are on a center portion of the optical waveguide in a vertical direction to the semiconductor.
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