US Patent Issued to Juniper Networks on June 17 for "Probabilistically shaped unamplified optical signaling" (California, Arizona Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,335,668, issued on June 17, was assigned to Juniper Networks Inc. (Sunnyvale, Calif.).

"Probabilistically shaped unamplified optical signaling" was invented by Zhen Qu (Sunnyvale, Calif.), Xiao Han (Tucson, Ariz.) and Yang Yue (Milpitas, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical transmitter can generate probabilistically shaped quadrature amplitude modulation (PS-QAM) signaling for transmission over a fiber to a destination without optical amplification. The single fiber can transmit the PS-QAM signaling using dense wavelength division multiplexing having a relatively large number of channels that are closely spaced. A coherent re...