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:
Apr. 21, 2020
Filed:
Jun. 25, 2019
Government of the United States, As Represented BY the Secretary of the Air Force, Wright-Patterson AFB, OH (US);
Joshua R. Hendrickson, Dayton, OH (US);
United States of America as represented by the Secretary of the Air Force, Wright Patterson, unknown;
Abstract
An optical switch includes a first Mach-Zehnder waveguide interferometer; a second Mach-Zehnder waveguide interferometer substantially parallel to the first Mach-Zehnder waveguide interferometer; and a pair of directional couplers, wherein each directional coupler is connected at each end of the first Mach-Zehnder waveguide interferometer and the second Mach-Zehnder waveguide interferometer, wherein each of the first Mach-Zehnder waveguide interferometer and the second Mach-Zehnder waveguide interferometer include a pair of coupled resonator optical waveguides sequentially aligned to one another and each including a semiconductor substrate; a silicon layer above the semiconductor substrate; an elongated photonic crystal structure on the silicon layer to propagate an electromagnetic signal therethrough; a plurality of holes in the elongated photonic crystal structure; and a pair of electrical contacts in the silicon layer and positioned adjacent to the elongated photonic crystal structure.