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Optical secure communication modeled by the perturbed nonlinear Schrödinger equation

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Abstract

This paper proposes an optical secure communication scheme based on chaos synchronization. Nonlinear Schrödinger equation is an important model for optical communication. Our theoretical analysis and numerical simulation show that when the nonlinear Schrödinger equation is perturbed by multiple frequencies, the optical solitons becomes chaotic despite that optical soliton is usual preferred for long-distance transmission. By taking the generated chaotic signals as communication carrier, a master slave system for optical secure communication is designed. A feedback controller is applied to the slave system. Sufficient conditions for chaos synchronization are then proved. It is discovered that the synchronization speed is closely linked with parameters of the nonlinear Schrödinger equation.

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Acknowledgements

This work is supported by the National Nature Science Foundations of China (Nos. 11101191 and 71673116), the Natural Science Foundation of Jiangsu Province (No. SBK2015021674) and Jiangsu Qing Lan Project.

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Authors and Affiliations

  1. Faculty of Science, Jiangsu University, Zhenjiang, 212013, Jiangsu, China

    Jiuli Yin, Xiangchun Duan & Lixin Tian

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  1. Jiuli Yin
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  2. Xiangchun Duan
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  3. Lixin Tian
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Correspondence to Jiuli Yin.

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Yin, J., Duan, X. & Tian, L. Optical secure communication modeled by the perturbed nonlinear Schrödinger equation. Opt Quant Electron 49, 317 (2017). https://doi.org/10.1007/s11082-017-1111-7

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