US Patent Issued to Psiquantum on March 18 for "Mach Zehnder lattice based generalized Mach Zehnder interferometer" (California Inventor)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,719, issued on March 18, was assigned to Psiquantum Corp. (Palo Alto, Calif.).

"Mach Zehnder lattice based generalized Mach Zehnder interferometer" was invented by Hugo Cable (San Mateo, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical phase shift circuit can include: a first Mach Zehnder lattice and a second Mach Zehnder lattice. Each Mach Zehnder lattice can have a first waveguide and a second waveguide, with a set of active phase shifters disposed along one of the waveguides and a plurality of directional coupler regions disposed along both waveguides between the active phase shifters. A first passive phase shifter can be coupled...