Recording of a Single-Photon Signal from Low-Flying Satellites for Satellite Quantum Key Distribution
A. V. Khmelev, Alexey V. Duplinsky, Vladimir Mayboroda, Ruslan M. Bakhshaliev, M. Yu. Balanov, V. L. Kurochkin, Yury Kurochkin, Yury Kurochkin, Yury Kurochkin · Technical Physics Letters · 2021
Abstract A ground receiving station for satellite quantum key distribution capable of analyzing the quantum polarization states of photons is presented. In an experiment concerning tracking a low-Earth orbit satellite, the residual tracking error by the ground station does not exceed 10 μrad, which ensures stable reception of the optical signal in four channels of the polarization state decoder. The efficiency of optical-signal recording in the satellite tracking mode is estimated.