Author Affiliations

Yingzhen Hong,^a,* Haihong Bao,^a,b Wei Jin,^a,b Hoi Lut Ho,^a,b Yan Zhao,^a,b Shoufei Gao,^a Yingying Wang,^c and Pu Wang^c

^aDepartment of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, China

^bPhotonics Research Center, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China

^cBeijing Engineering Research Centre of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China

^*Corresponding author: yingzhen.hong@connect.polyu.hk