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Experimental validation of dynamic polarization compensation in ground-satellite quantum key distribution |
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| Authors: | ChaoZe Wang Hui Guo JiGang Ren Yuan Cao ChengZhi Peng WeiYue Liu |
| Institution: | 1. College of Information Science and Engineering, Ningbo University, Ningbo, 315211, China 2. Hefei National Laboratory for Physical Science at the Microscale, Modern Physics Department, University of Science and Technology of China, Hefei, 230026, China |
| Abstract: | Ground-satellite quantum key distribution (QKD) is a feasible way to implement global-scale quantum communication. Herein we propose an approach to dynamically compensate the polarization of the photons when passing through the optical telescope used in ground-satellite QKD. Our results experimentally demonstrate that the fidelity of any polarization state after dynamic compensation can be achieved by more than 99.5%, which fulfills the requirements of ground-satellite QKD. |
| Keywords: | satellite-ground quantum key distribution polarization-encoding polarization maintaining optical system |
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