High-Sensitivity Forward-Transmission Vibration Sensing for Real-World Event Detection in Urban Fiber Networks

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Publication Date: 4/3/2025

Event: OFC 2025

Reference: Th4C.2: 1-3, 2025

Authors: Jian Fang, NEC Laboratories America, Inc.; Ming-Fang Huang, NEC Laboratories America, Inc.; Scott Kotrla, Verizon; Tiejun J. Xia, Verizon; Glenn A. Wellbrock, Verizon; Jeffrey A Mundt, Verizon; Ting Wang, NEC Laboratories America, Inc.; Yoshiaki Aono, NEC Corporation

Abstract: We demonstrated a high-sensitivity forwarding-transmission vibration sensing system, enhanced by adaptive time-frequency masking and in-band laser phase noise suppression, detecting and localizing weak real-world events across 80−km deployed fiber with significant ambient vibration interference.

Publication Link: https://ieeexplore.ieee.org/document/11047113