[WC1] Distributed Fiber Sensing and Application

9:00 AM - 9:15 AM JST(12:00 AM - 12:15 AM UTC)

[WC1-1] Random Phase Modulated φ-OTDR for Simultaneous Loss and Vibration Monitoring

○Jingchi Cheng¹, Can Zhao², Tao Shang¹, Jing Jiang¹, Ming Tang² (¹Xidian Univ., ²Huazhong Unv. of Sci. and Tech.)

Keywords:

Distributed fiber optical sensing,fibers and fiber devices for sensing

We experimentally demonstrated a novel φ-OTDR system with the ability to measure loss and vibration simultaneously. The loss measurement accuracy is 0.07 dB and fading-free phase demodulation is realized in a 50-km long fiber span.