Jun Liu received the Ph.D. degree in optical engineering with the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China, in 2014. He is currently an Associate Professor with the International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Shenzhen, China. He has authored or coauthored more than 50 papers in high-standard journals and conferences. His research interests and activities include fiber optics, nonlinear optics, and laser technology.