Author Affiliations

Wensheng Zhai,^a,b Jianbin Yao,^a Yunxia Xin,^a,* Ruijiao Zhang,^a and Hai Yang^b

^aSchool of Physics and Electronics, North China University of Water Resources and Electric Power, Zhengzhou, 450046, China

^bState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China

^*Corresponding author: xinyunxia@ncwu.edu.cn