ALEXANDRIA, Va., June 4 -- United States Patent no. 12,321,052, issued on June 3, was assigned to Terra Quantum AG (St. Gallen, Switzerland).

"Waveguide for low loss, high speed electro-optical modulator" was invented by Andrey Okhrimchuk (St. Gallen, Switzerland), Gordey Lesovik (St. Gallen, Switzerland) and Grigory Alagashev (St. Gallen, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A waveguide device comprises a substrate comprising an electro-optical material; a waveguide formed in the electro-optical material; and a plurality of electrodes formed in a vicinity of the waveguide. The electro-optical material has a first refractive index. The waveguide comprises a plurality of tracks. The trac...