Presentation Information

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

○Jiazhen Ji, Jiageng Chen, Zhengyuan Xiao, Qingwen Liu, Zuyuan He (Shanghai Jiao Tong Univ.)

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.