ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,788, issued on March 18.
"Gate-tunable entangled photon pair generation" was invented by Krishnan Thyagarajan (Sunnyvale, Calif.) and Krishna Thyagarajan (Bengaluru, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electro-optical modulating device and method that provides efficient control of the nonlinear propagation constant in an optical waveguide are featured. The electro-optical modulating device provides large wavelength tunability of the generated entangled photon pairs in real-time by using an applied external bias voltage. The electro-optical modulating device uses gate-tunable material at locations near the optical waveguide. The ...