ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,471, issued on Oct. 20, was assigned to PICMORE TECHNOLOGY (SUZHOU) LTD. (Suzhou, China).
"On-chip integrated wavelength division multiplexer and chip" was invented by Defen Guo (Suzhou, China), Tianhua Lin (Suzhou, China) and Xianyao Li (Suzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An on-chip integrated wavelength division multiplexer, including a bus waveguide and at least two cascaded wavelength division multiplexing units disposed on the bus waveguide. Each of the wavelength division multiplexing units comprises two input ports and one output port, and is used for combining two optical signals received by the two input ports and ...