Abstract
0.01 Hz low-frequency acoustic wave detection over 92 km sensing fiber based on chirped-pulse φ-OTDR is demonstrated with distributed Raman amplification and 32 averages. The strain sensitivity is 8.5 nε/Hz1/2.
© 2023 The Author(s)
PDF ArticleMore Like This
Xi Chen, Erhu Liu, Cheng Fu, Hongying Zhang, Zhiwei Lu, and Yongkang Dong
W4A.42 Asia-Pacific Optical Sensors Conference (APOS) 2016
L. Rossi, L. K. Cheng, W. De Jong, R. Jansen, and G. Bolognini
AM3K.7 CLEO: Applications and Technology (CLEO:A&T) 2023
L. Rossi, L. K. Cheng, W. De Jong, R. Jansen, and G. Bolognini
W4.42 Optical Fiber Sensors (OFS) 2022