US Patent Issued to Google on April 21 for "Phase-folding coherent optical technology for optical communication" (California Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,772, issued on April 21, was assigned to Google LLC (Mountain View, Calif.).

"Phase-folding coherent optical technology for optical communication" was invented by Xiang Zhou (Sunnyvale, Calif.), Cedric Fung Lam (San Carlos, Calif.) and Hong Liu (Palo Alto, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The technology is generally directed to a coherent optical system that performs phase folding for one-dimensional coherent optical signals using a first optical coupler configured to output a first signal portion and a second signal portion, a second optical coupler to receive the first signal portion through a first branch and the second sign...