[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 Cheng^1,2, Can Zhao³, Tao Shang^1,2, Jing Jiang², Ming Tang³ (1. Hangzhou Institute of Technology, Xidian University (China), 2. School of Telecommunications Engineering, Xidian University (China), 3. Wuhan National Lab for Optoelectronics & National Engineering Research Center of Next Generation Internet Access-system, School of Optical and Electronic Information, Huazhong Unv. of Sci. and Tech. (China))

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.