Dakun Wu received the B.S. degree from South China University of Technology, Guangzhou, China, in 2015. He is currently working toward the Ph.D. degree with the Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China, and the Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China. His research interest involves the design, fabrication, and applications of hollow-core fibers.