Author Affiliations

Chih-Hsien Cheng,¹ Yi-Ze Lee,^2,3 Yi-Chien Wu,^2,3 Wei-Chun Wang,^2,3 Huai-Yung Wang,^2,3 and Gong-Ru Lin^1,2,*

¹Research Center for Advanced Science and Technology, University of Tokyo, Tokyo 153-0041, Japan.

²Graduate Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan R.O.C.

³NTU-Tektronix Joint Research Center, National Taiwan University, Taipei, Taiwan R.O.C.

^*Corresponding author: grlin@ntu.edu.tw