The Analysis of the Influence of Nonlinear Effect on the Quantum Bit Error Rate of a Quantum mode Division multiplexing system

Abstract

Abstract: The classical signals and quantum signals simultaneous transmission sharing a same few-mode fiber can be realized by using mode division multiplexing. In order to study the quantum signal influenced by classical optical signals due to optical fiber nonlinear effects during transmission, this paper firstly studies the relationship between the crosstalk power caused by nonlinear effect, fiber length and the power of classical optical signals, and constructs the quantum bit error rate model under the influence of nonlinear effect. Then the simulation analysis is carried out for the three modes optical fiber system, the effects of fiber length and classical optical signal power on the quantum bit error rate are discussed. Simulation results show that when the signal wavelength is 1550nm and the power of the classical optical signal is -10dbm, the quantum communication distance can reach 155.7km.

Key words: optical fiber quantum communication, mode division multiplexing, nonlinear effect, few-mode fiber

HUANG Chao, LI Yunxia, SHI Lei, MENG Wen, YANG Ru. The Analysis of the Influence of Nonlinear Effect on the Quantum Bit Error Rate of a Quantum mode Division multiplexing system[J]. Chinese Journal of Quantum Electronics, 2019, 36(4): 444-449.

References

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