ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,830, issued on Feb. 24, was assigned to Ayar Labs Inc. (San Jose, Calif.).
"Undercut thermo-optic phase shifter" was invented by Sidney Buchbinder (Berkeley, Calif.), John Fini (Albany, Calif.) and Anatol Khilo (Dublin, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A thermo-optic phase shifter includes a substrate having a cavity formed into an upper region of the substrate. The thermo-optic phase shifter includes an optical waveguide disposed above the substrate. The optical waveguide extends across and above the cavity. The thermo-optic phase shifter also includes a heater device disposed along a lateral side of the optical waveguide. The ...