Field Trial of Coexistence and Simultaneous Switching of Real-time Fiber Sensing and 400GbE Supporting DCI and 5G Mobile Services

Yue-Kai Huang, Zehao Wang, Ezra Ip, Zhenzhou Qi, Gil Zussman, Dan Kilper, Koji Asahi, Hideo Kageshima, Yoshiaki Aono, Tingjun Chen

Abstract: Coexistence of real-time constant-amplitude distributed acoustic sensing (DAS) and 400GbE signals is verified by field trial over metro fibers, demonstrating no QoT impact during co-propagation and supporting preemptive DAS-informed optical path switching before link failure.