Author Affiliations

Chih-Hsien Lai,^1,2 Chi-Kuang Sun,^1,3 and Hung-chun Chang^1,3,4,*

¹Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei, Taiwan 10617, R.O.C.

²Department of Electronic Engineering, Hwa Hsia Institute of Technology, Taipei, Taiwan 23568, R.O.C.

³Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C.

⁴Graduate Institute of Communication Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C.

^*Corresponding author: hcchang@cc.ee.ntu.edu.tw