US Patent Issued to NEC on Dec. 30 for "Monitoring device, monitoring method, optical amplifier, and optical transmission system" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,512,642, issued on Dec. 30, was assigned to NEC Corp. (Tokyo).

"Monitoring device, monitoring method, optical amplifier, and optical transmission system" was invented by Keiichi Matsumoto (Tokyo) and Hidemi Noguchi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a monitoring device, a monitoring method, an optical amplifier, and an optical transmission system that are adapted for an increase in the number of cores in a multi-core optical fiber transmission path, and that are suitable for crosstalk monitoring. The monitoring device monitors a multi-core optical fiber transmission path comprising a plurality of use core and at least one...