ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,992, issued on Oct. 14.
"Wavelength division multiplexer" was invented by Long Chen (Marlboro, N.J.), Christopher Doerr (Middletown, N.J.) and Li Chen (Marlboro, N.J.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An integrated wavelength division multiplexer is described. The integrated wavelength division multiplexer may include a first waveguide core defining a first propagation axis and configured to guide light of a first wavelength and light of a second wavelength, and a second waveguide core defining a second propagation axis and configured to guide the light of the second wavelength. A first portion of the second propagation axis for which t...