ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,728, issued on Nov. 18.

"Wavelength domain multiplexing with polarization multiplexing" was invented by Long Chen (Marlboro, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In part, in one aspect, the disclosure relates to a system including an integrated optical multiplexer. The integrated optical multiplexer may include a plurality of optical inputs configured and constructed to receive input optical signals; two or more stages of multiplexing in a cascading configuration, wherein the two or more stages of multiplexing are divided into wavelength stages and a last stage, wherein each of the wavelength stages combine subsets of input optical si...