Author Affiliations

L. F. K. Lui,¹ Ailing Zhang,^2,3 P. K. A. Wai,^1,* H. Y. Tam,² and M. S. Demokan²

¹Photonics Research Centre and Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong

²Photonics Research Centre and Department of Electrical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong

³School of Electronics Information and Communications Engineering, Tianjin University of Technology, Tianjin, China

^*Corresponding author: enwai@polyu.edu.hk