Skip to main content
SpringerLink
Log in

Security of polarization-shift keying chaos optical communication system

  • Research Article
  • Published:
Frontiers of Optoelectronics in China Aims and scope Submit manuscript

Abstract

To evaluate the security of a chaos optical communication system employing the polarization-shift keying (PolSK) modulation technology, its chaos characteristic needs to be verified. In this paper, an analysis was done for the signal of this system. Three methods were used to judge whether the signal was maintaining chaos characteristics or not: watching the strange attractor in three-dimensional phase space, computing the largest Lyapunov exponent by the equation which meets and Wolf’s method, and evaluating the self-power spectrum density function. As a result, the strange attractor was clearly watched, the largest Lyapunov exponent was positive 0.0364 and 0.0106 respectively, and the self-power spectrum was wide and continuous with the noise background. The evaluation of chaos for the signal transmitted in the system is therefore presented. On the other hand, the minimal embodied dimension of the signal was given by the false nearest neighbors (FNN) method and it reached 6, which showed the higher dimension chaos characteristics of the system. Adding the analysis of the ability of anti-attack for the system, it is concluded that the system has higher security than the normal chaos masking schemes.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Yan Senlin. High rate chaos secure communication system of multiple quantum well lasers. Acta Optica Sinca, 2005, 25(2): 179–185 (in Chinese)

    Google Scholar 

  2. Yan Senlin, He Longqing, Wu Haiyong, et al. Studies on method of phase shift controlling chaos for dual ring erbium doped fiber lasers. Chinese Journal of Lasers, 2005, 32(5): 642–646 (in Chinese)

    Google Scholar 

  3. Yan Senlin. All-optical chaotic MQW laser repeater for long-haul chaotic communications. Chinese Optics Letters, 2005, 3(5): 283–286

    Google Scholar 

  4. van Winggeren G D, Roy R. High-speed fiber-optic polarization analyzer: measurements of the polarization dynamics of an erbium-doped fiber ring laser. Optics Communications, 1999, 164(1–3): 107–120

    Article  Google Scholar 

  5. Wang Lutang, Huang Zhaoming. Optical chaos communication with a dynamical SOA-based fiber ring laser. In: APOC 2003: Asia-Pacific Optical and Wireless Communications: Optical Transmission, Switching and Subsystems. Bellingham: SPIE. 2003, 5281: 619–627

    Google Scholar 

  6. Wang Lutang, Wu Weijia, Fang Nian, et al. Experimental study on chaotic optical communication with PolSK modulation technology. In: Tucker R S, Chiaroni D, Gu Wanyi, et al. APOC 2005: Asia-Pacific Optical and Wireless Communications: Optical Transmission, Switching and Subsystems. Bellingham: SPIE. 2005, 6021: 60210S

    Google Scholar 

  7. Yang Xiuli. A study on polarization-shift keying technology and optic chaos communication system. Dissertation of the Master’s Degree. Shanghai: Shanghai University, 2005 (in Chinese)

    Google Scholar 

  8. Li Guohui, Zhou Shiping, Xu Deming. Computing the largest Lyapunov exponent from time series. Journal of Applied Sciences. 2003, 21(2): 127–131 (in Chinese)

    MathSciNet  Google Scholar 

  9. Lin Jiayu, Wang Yueke, Huang Zhiping, et al. A new voice activity detection method based on chaos theory. Journal of China Institute of Communications. 2001, 22(2): 123–128 (in Chinese)

    Google Scholar 

  10. Li Yaan, Xu Demin. State space reconstruction of nonlinear dynamic system. Ship Engineering, 2000, 22(5): 47–50 (in Chinese)

    Google Scholar 

  11. Wen Quan, Zhang Yongchuan, Cheng Shijie. Identify determinacy from chaotic time series. International Journal Hydroelectric Energy, 2001, 19(3): 72–75 (in Chinese)

    Google Scholar 

  12. Lü Jinhu, Lu Jun’an, Chen Shihua. The Analysis of Chaotic Time Series and Its Application. Wuhan: Wuhan University Press, 2002, 76–80 (in Chinese)

    Google Scholar 

  13. van Winggeren G D, Roy R. Chaotic communication using time-delayed optical systems. International Journal of Bifurcation and Chaos, 1999, 9(11): 2129–2156

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. School of Communication and Information Engineering, Shanghai University, Shanghai, 200072, China

    Nian Fang, Lutang Wang & Zhaoming Huang

  2. College of Information and Engineering, Zhejiang University of Technology, Hangzhou, 310014, China

    Shuqin Guo

Authors
  1. Nian Fang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Lutang Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Shuqin Guo
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Zhaoming Huang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Nian Fang.

Additional information

__________

Translated from Acta Optica Sinica, 2006, 26(6): 812–817 [译自: 光学学报]

Rights and permissions

Reprints and permissions

About this article

Cite this article

Fang, N., Wang, L., Guo, S. et al. Security of polarization-shift keying chaos optical communication system. Front. Optoelectron. China 1, 64–69 (2008). https://doi.org/10.1007/s12200-008-0009-1

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12200-008-0009-1

Keywords

Search

Navigation