Author Affiliations

Ke Tan,^1,2,3 Xiaoshuang Dai,^1,2,3 Zhiyuan Li,^1,2,3 Xueping Li,^1,2,3 Shikai Li,^1,2,3 Hongyu Liu,^1,2,3 Shuang Wang,^1,2,3,*,* and Tiegen Liu^1,2,3

¹School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China

²Key Laboratory of Opto-electronics Information Technology, Ministry of Education, Tianjin 300072, China

³Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing of Tianjin University, Tianjin 300072, China

^**tel:+13821032173

^*Corresponding author: shuangwang@tju.edu.cn