Performance improvement of secure chaotic optical communications utilizing symmetrical dispersion compensation technique

Qingchun Zhao; Peiyang Liu; Hongxi Yin

doi:10.1117/12.903040

14 December 2011 Performance improvement of secure chaotic optical communications utilizing symmetrical dispersion compensation technique

Qingchun Zhao, Peiyang Liu, Hongxi Yin

Author Affiliations +

Proceedings Volume 8309, Optical Transmission Systems, Subsystems, and Technologies IX; 83092E (2011) https://doi.org/10.1117/12.903040
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

Abstract

The purpose of this paper is to numerically study performance improvement of single-channel secure chaotic optical communications utilizing symmetrical dispersion compensation technique. The decrypted 1.25-Gbits/s non-return-tozero (NRZ) sequence at the receiver side becomes rather distorting after the transmission of 200-km dispersion shifted fiber. However, the quality of decrypted sequence is significantly improved by allocating dispersion compensation fiber. The results show that the Q-factors of the latter dispersion compensation period are smaller than that of the former ones. This is mainly due to the self-phase modulation (SPM) induced by the nonlinear coefficient of fiber. The results also indicate that the Q-factors increase in different degrees for three sequences of different bit rates.

Citation Download Citation

Qingchun Zhao, Peiyang Liu, and Hongxi Yin "Performance improvement of secure chaotic optical communications utilizing symmetrical dispersion compensation technique", Proc. SPIE 8309, Optical Transmission Systems, Subsystems, and Technologies IX, 83092E (14 December 2011); https://doi.org/10.1117/12.903040

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