Experimental Demonstration of a 20-Mbit/s per Channel Free-Space Bi-directional Quantum Communication Link Using Orbital-Angular-Momentum Encoding and Multi-Port Mode Converters
Conference on Lasers and Electro-Optics (CLEO 2018)
Section :
Fiber networks
Publication date:
2018
Authors: Cong Liu, Kai Pang, Hao Song, Guodong Xie, Jiapeng Zhao, Yongxiong Ren, Haoqian Song, Zhe Zhao, Runzhou Zhang, Long Li, Jing Du, Seyed M. H. Rafsanjani, Guillaume Labroille, Pu Jian, W. Robert, Boyd, Moshe Tur, Alan E. Willner
2018 Conference on Lasers and Electro-Optics (CLEO)
Abstract
We experimentally demonstrate a free-space, bi-directional quantum communication link encoded by two OAM states using multi-port mode converters. We achieve a quantum-symbol-error-rate of ≈ 0.058 for each channel at 20 Mbit/s/channel when OAM mode-spacing is 4.