ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,674, issued on Aug. 11, was assigned to The Regents of the University of California (Oakland, Calif.).
"Integrated high-extinction ratio unbalanced Mach Zehnder interferometers and integrated Mach Zehnder interferometers incorporating coil resonators" was invented by Kaikai Liu (Santa Barbara, Calif.), Jiawei Wang (Malden, Mass.), Andrei Isichenko (Goleta, Calif.), Nitesh Chauhan (Sunnyvale, Calif.) and Daniel J. Blumenthal (Santa Barbara, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device may include a first waveguide with an optical input at a first port. A device may include a second waveguide. A device may include a first coupler tha...