Hao-Tien Cheng received his BEng degree in Electronics Engineering from the Hong Kong University of Science and Technology, Hong Kong, in 2015. He is a Ph.D. candidate working with Prof. Chao-Hsin Wu in the Graduate Institute of Electronic Engineering, National Taiwan University, Taipei, Taiwan. His research interests include VCSELs, semiconductor lasers, optical communication, and optoelectronic devices.