Bit Error Analysis and Optimization of Optical Quantum Communication System Under Turbulent Channel

Xuchao Liu; Huagui Li; Shilun Sun; Wenzhou Wu; Shaobo Li

doi:10.3788/AOS202242.0327018

Acta Optica Sinica, Volume. 42, Issue 3, 0327018(2022)

Bit Error Analysis and Optimization of Optical Quantum Communication System Under Turbulent Channel

Xuchao Liu^1,2、*, Huagui Li^1,2, Shilun Sun¹, Wenzhou Wu¹, and Shaobo Li^1,2

Author Affiliations

¹54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang, Hebei 0 50081, China

²Hebei Key Laboratory of Photonic Information Technology and Application, Shijiazhuang, Hebei 0 50081, China

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Figures & Tables(7)

Fig. 1. Optical quantum communication system model for atmospheric channel. (a) Poisson distribution of photon number; (b) Gamma-Gamma distribution of atmospheric channel; (c) binomial distribution of single photon detector; (d) schematic diagram of signal transmission link

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Fig. 2. Relationship between system BER and average number of photons in each pulse

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Fig. 3. Relationship between system BER and signal modulation frequency

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Fig. 4. Relationship between system BER and intensity of atmospheric turbulence

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Fig. 5. Relationship between system BER and detection efficiency

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Fig. 6. Relationship between system BER and dark counting

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Table 1. Simulation parameters of MATLAB
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Table 1. Simulation parameters of MATLAB
Parameter Numerical value
λ /nm 1550
f /Hz 10⁷
μ 50
L /m 10⁸
$C_{n}^{2}$ /m^-2/3 10^-17
D /m 0.1
α' /s^-1 500
η 0.5
m 4
k_h 2

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Xuchao Liu, Huagui Li, Shilun Sun, Wenzhou Wu, Shaobo Li. Bit Error Analysis and Optimization of Optical Quantum Communication System Under Turbulent Channel[J]. Acta Optica Sinica, 2022, 42(3): 0327018

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