ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,229, issued on April 7, was assigned to Purdue Research Foundation (West Lafayette, Ind.).
"3D tapered nanophotonic waveguide to fiber edge coupler" was invented by Tzu-Han Chang (West Lafayette, Ind.) and Chen-Lung Hung (Zionsville, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of forming an optical waveguide from a multi-layer material is described. The multi-layer material includes a resist material layer deposited over a waveguide material layer, and the waveguide material layer deposited over a first cladding material layer. The method includes using a lithography procedure to form a three-dimensional tapered indentation into a t...