Acta Optica Sinica, Volume. 41, Issue 1, 0106004(2021)
Phase Sensitive Optical Time-Domain Reflective Distributed Optical Fiber Sensing Technology
Fig. 1. Superposition of scattered light in pulse range
Fig. 2. Basic structure of Φ-OTDR system. (a) Structure based on direct detection; (b) structure based on heterodyne coherent detection; (c) structure based on three-port coupler detection; (d) structure based on PGC detection
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Xuping Zhang, Zhewen Ding, Rui Hong, Xiaohong Chen, Lei Liang, Chi Zhang, Feng Wang, Ningmu Zou, Yixin Zhang. Phase Sensitive Optical Time-Domain Reflective Distributed Optical Fiber Sensing Technology[J]. Acta Optica Sinica, 2021, 41(1): 0106004
Category: Fiber Optics and Optical Communications
Received: Aug. 10, 2020
Accepted: Oct. 22, 2020
Published Online: Feb. 23, 2021
The Author Email: Zou Ningmu (nz86@cornell.edu), Zhang Yixin (zyixin@nju.edu.cn)