Approach the Fundamental Limit of Orbital Angular Momentum Multiplexing

Shuai S. A. Yuan, Jie Wu, Menglin L. N. Chen, Zhihao Lan, Liang Zhang, Sheng Sun, Zhixiang Huang, Xiaoming Chen, Shilie Zheng, Li Jun Jiang, Xianmin Zhang and Wei E. I. Sha1,∗ College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China Ministry of Education and the Key Laboratory of Electromagnetic Environmental Sensing, Department of Education of Anhui Province, Anhui University, Hefei 230039, China Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong Department of Electronic and Electrical Engineering, University College London, Torrington Place, London WC1E 7JE, United Kingdom Anhui Province Key Laboratory of Simulation and Design for Electronic Information System, Hefei Normal University, Hefei 230601, China School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China and School of Information and Communications Engineering, Xi’an Jiaotong University, Xi’an 710049, China