Real-time vibration locating phase-sensitive OTDR based on envelope extraction and undersampling technique

Feihong Yu1; Liyang Shao1; Shuaiqi Liu2; Weijie Xu1; Dongrui Xiao1; Huanhuan Liu1; Perry Ping Shum1

10.1109/ICOCN55511.2022.9901113

2022

2330-7986

978-1-6654-5899-3

2022 20th International Conference on Optical Communications and Networks (ICOCN)

1-3

12-15 Aug. 2022

Shenzhen, China

Real-time vibration localization and phase demodulation at a low system cost are still the challenges for phase-sensitive optical time-domain reflectometry $(\Phi\text{-}\text{OTDR)}$. In this paper, undersampling technique is utilized to decrease the data volume, also contributing to the reduction of the system cost. Digital envelope extraction is applied to quickly locate the vibration, and phase demodulation with the undersampled data is also performed for waveform analysis. This flexible scheme improves the real-time performance of the system, also offering an enhancement to the applicability of $\Phi\text{-}\text{OTDR}$.

Optical fiber sensing phase-sensitive optical time-domain reflectometry undersampling envelope extraction phase demodulation

第一

IEEE

1.Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, China
2.State Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macau, China

Feihong Yu,Liyang Shao,Shuaiqi Liu,et al. Real-time vibration locating phase-sensitive OTDR based on envelope extraction and undersampling technique[C],2022:1-3.