ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,172, issued on Feb. 17, was assigned to Psiquantum Corp. (Palo Alto, Calif.).
"Raster multiplexing in photonic circuits" was invented by Hugo Cable (San Mateo, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Circuits and methods that implement multiplexing for photons propagating in waveguides are disclosed, in which an input photon received on a selected one of a set of input waveguides can be selectably routed to one of a set of output waveguides. The output waveguide can be selected on a rotating or cyclic basis, in a fixed order, and the input waveguide can be selected based at least in part on which one(s) of a set of input waveguides is ...