ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,650, issued on Sept. 30, was assigned to TAIWAN SEMICONDUCTOR MANUACTURING COMPANY LTD (Hsinchu, China).
"Photonic circuitry having stacked optical resonators" was invented by Wen-Hao Cheng (Hsinchu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device includes a first ring resonator positioned in a first plane, a first optical waveguide positioned in the first plane and configured to provide photons to the first ring resonator, a second ring resonator positioned in a second plane that is below the first plane, and a second optical waveguide positioned in the second plane. The second optical waveguide is configured to receive pho...