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Conferences > OFS > 2022 > Th4 > Th4.11

Research on ultra long range Φ-OTDR distributed vibration measuring system based on ROPA technology

Jiekui Yu, Jiasheng Liu, Qianggao Hu, Jian Xu, Mingchao Nie, Xingyun Chen, Jianjun Wu, Xiaojiao Zhang, Hongkai Liu, Shizhan Yu, Guoxiang Li, and Xiao Qin

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Abstract

The ROPA technique has great application prospects for Φ-OTDR relayless engineering applications. This paper realized the 175km vibration sensing distance by using the ROPA and the third-order Raman technology, which can enhance the optical power of the detection signal significantly. At the end of the fiber, a vibration source device PZT is used to ensure the accurate identification of events.

© 2022 The Author(s)

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