US Patent Issued to Infinera on July 14 for "Chromatic dispersion optical time domain reflectometry on submarine communication cables using coherent optical transponders" (Maryland Inventor)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,683,687, issued on July 14, was assigned to Infinera Corp..

"Chromatic dispersion optical time domain reflectometry on submarine communication cables using coherent optical transponders" was invented by Pierre H. Mertz (Baltimore).

According to the abstract* released by the U.S. Patent & Trademark Office: "A disclosed optical system comprises a repeater disposed between a first span and a second span of an optical cable and a node receiving an optical signal from the first span and transmitting a reflection to the first span. The node comprises a transmitter coupled to the first span to transmit the optical signal, transmit pulses having a test subcarrier and a tone, and provide a re...