[WC1] Distributed Fiber Sensing and Application

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[WC1-4] Broad-Bandwidth Distributed Acoustic Sensor with Enhanced Robustness

○Jiazhen Ji¹, Jiageng Chen¹, Zhengyuan Xiao¹, Qingwen Liu¹, Zuyuan He¹ (1.Shanghai Jiao Tong University)

Keywords:

Distributed fiber optical sensing,fibers and fiber devices for sensing

We propose a novel sequence to compensate offset and sensitivity fading in FDM-Φ-OTDR without relying on specific frequency components, achieving 34.0 dB spurious-free-dynamic-range(SFDR) with a 9 kHz sinusoidal strain on a 10 km fiber.