Guanghao Rui1,2, Haifeng Hu1, Matthew Singer3, Yi‐Jun Jen4, Qiwen Zhan1,5,*, Qiaoqiang Gan1,3,*
1 School of Optical‐Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai, 200093 China
2 Advanced Photonics Center, Southeast University, Nanjing, 210096 Jiangsu, China
3 Department of Electrical Engineering, University at Buffalo, The State University of New York, Buffalo, NY, 14260 USA
4 Department of Electro‐Optical Engineering, National Taipei University of Technology, Taipei, 106 Taiwan
5 Department of Electro‐Optics and Photonics, University of Dayton, 300 College Park, Dayton, OH, 45469‐2951 USA