ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,174, issued on Feb. 17, was assigned to PsiQuantum Corp. (Palo Alto, Calif.).

"Optical switches based on induced optical loss" was invented by Mihai Vidrighin (Palo Alto, Calif.), Nikhil Kumar (Burlingame, Calif.) and Gary Gibson (Palo Alto, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes propagating light in a first waveguide of a 1x2 optical switch. The first waveguide is adjacent to a second waveguide in a coupling region. The 1x2 optical switch comprising an input to receive the light and couple the light to the first waveguide. The 1x2 optical switch further comprising a first output to output light from the first wavegu...