US Patent Issued to Infinera on Oct. 27 for "Full coherent optical time-domain reflectometry (FC-OTDR) with intrusion detection capability over data transmission fiber" (Canadian, American Inventors)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,936, issued on Oct. 27, was assigned to Infinera Corp..

"Full coherent optical time-domain reflectometry (FC-OTDR) with intrusion detection capability over data transmission fiber" was invented by Reza Ashrafi (Ottawa), Sung Han Chung (Kanata, Canada), Suet Yuen (Kanata, Canada), Manish Sharma (Morgan Hill, Calif.) and Yan Han (Richardson, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "The proposed full-coherent optical time domain reflectometry (FC-OTDR) solution extracts full optical phase and state of the polarization (SOP) information for fiber intrusion detection by constructing a continuous reflected SOP from each point of the fiber leng...