Duobinary modulation format and unequal channel spacing integration to suppress four-wave mixing crosstalk in WDM systems

Bassem K Abd Elrazak,Moustafa H Aly,M Bashir Saleh

doi:10.1109/siecpc.2011.5876926

Duobinary modulation format and unequal channel spacing integration to suppress four-wave mixing crosstalk in WDM systems

Bassem K Abd Elrazak, Moustafa H Aly + Show 1 more

https://doi.org/10.1109/siecpc.2011.5876926

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Publication Date: Apr 1, 2011

Citations: 8

Affiliation: Arab Academy for Science, Technology, and Maritime Transport

#Unequal Spacing #Duobinary Modulation Format + Show 8 more

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Abstract

This paper presents a study of the effectiveness of integrating unequal channel spacing and duobinary modulation format as a good alternative of conventional non-return to zero (NRZ) modulation format to further suppress four-wave mixing (FWM) crosstalk in a four 10-Gbps channels wavelength division multiplexing (WDM) system. The study is conducted using VPI Transmission Maker Simulator. The results show that duobinary modulation has a better performance in suppressing FWM than conventional NRZ, and that using unequal spacing with duobinary modulation further improves the suppression of FWM products in WDM systems.

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