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Proceedings Paper

Performance improvement of secure chaotic optical communications utilizing symmetrical dispersion compensation technique
Author(s): Qingchun Zhao; Peiyang Liu; Hongxi Yin
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Paper 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.

Paper Details

Date Published: 14 December 2011
PDF: 6 pages
Proc. SPIE 8309, Optical Transmission Systems, Subsystems, and Technologies IX, 83092E (14 December 2011); doi: 10.1117/12.903040
Show Author Affiliations
Qingchun Zhao, Dalian Univ. of Technology (China)
Peiyang Liu, Dalian Univ. of Technology (China)
Hongxi Yin, Dalian Univ. of Technology (China)


Published in SPIE Proceedings Vol. 8309:
Optical Transmission Systems, Subsystems, and Technologies IX
Xiang Liu, Editor(s)

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