Fading Suppression and Enhanced Signal-to-noise Ratio in Multicore Fiber Integrated Ф-OTDR System

Yihong Xiao1; Huanhuan Liu1; Zhiyong Zhao2; Xingliang Shen3; Jialong Li3; Yuntian Wang3; Zhengting Wu3; Yutian Liu3; Dajuan Lv1; Hong Dang3; Perry Ping Shum1

10.1109/OGC59456.2023.10314629

2023

979-8-3503-2533-1

2023 IEEE 8th Optoelectronics Global Conference (OGC)

72-75

5-8 Sept. 2023

Shenzhen, China

We have proposed and demonstrated the combination of space-division-multiplexing (SDM) and frequency-division-multiplexing (FDM) techniques in multicore fiber (MCF) integrated phase-sensitive optical time-domain reflectometry (Φ-OTDR) for achieving fading suppression and enhanced signal-to-noise ratio. By using spectral mainlobe and sidelobe reconstruction (SMSR) method in the 2.58-km-long MCF, the fading rate of two cores of MCF is reduced from 2.21% to 0.02%. And the disturbance at 2.55km is accurately located and restored. The obtained results show great potential in application of weak signals detection over long distances.

multicore fiber spectral mainlobe and sidelobe reconstruction distributed fiber sensing

其他

EI

20235015217408

Fibers ; Profilometry ; Signal reconstruction ; Space division multiple access ; Time domain analysis

Information Theory and Signal Processing:716.1 ; Mathematics:921

IEEE

1.State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Yangtze Optical Fibre and Cable Joint Stock Limited Company, Hubei
2.School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
3.Department of Electrical and Electronic Engineering, Guangdong Key Laboratory of Integrated Optoelectronics Intellisense, Southern University of Science and Technology, Shenzhen, China

Yihong Xiao,Huanhuan Liu,Zhiyong Zhao,et al. Fading Suppression and Enhanced Signal-to-noise Ratio in Multicore Fiber Integrated Ф-OTDR System[C],2023:72-75.