| Autor: |
Peiyang Liu, Qingchun Zhao, Hongxi Yin |
| Rok vydání: |
2011 |
| Předmět: |
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| Zdroj: |
Optical Transmission Systems, Subsystems, and Technologies. |
| DOI: |
10.1364/acp.2011.83092e |
| Popis: |
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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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