Title: Dual Polarization WDM Systems Using CO-OFDM Technique: Effect of Fiber Nonlinear Optics
Publisher: Scholars' Press
Publication Date: 2014
Language: English
ISBN 10: 3639669770
ISBN 13: 9783639669770
Binding: Soft cover
Condition: New

About this title

Synopsis

In recent years, there is increasing interest in using dual-polarization (DP) technique to enable future systems with at least 100 Gb/s rate per channel to operate over existing optical networks. The performance of these advanced systems can be enhanced further by using CO-OFDM technique which offers high spectral efficiency and outstanding tolerance of fiber dispersion.This work addresses the effect of fiber nonlinear optics on the performance of dual polarization CO-OFDM/WDM system operating with 100 Gb/s per channel. Different modulation formats, namely BPSK, QPSK and 16-QAM, are used. First, the performance of a single-channel system is investigated in the absence and presence of fiber nonlinearity. The results are compared with a conventional (single-polarization) system to identify the key role played by the DP technique. The investigation is then extended to WDM systems incorporating DP-OFDM technique. The results reveal that the effect of fiber nonlinearity can be reduced by using optimum transmitter laser power Popt. Further, the value of Popt is a function of transmission distance, number of multiplexed channels, and modulation formats.

About the Author

Bashar Mudhafar Ahmed was born in Baghdad, Iraq, in 1987. He obtained the M.Sc. degree in Electronic and Communications Engineering from Al-Nahrain University, Iraq, in 2014. Currently, he is working as an assistant lecturer at the College of Engineering, Al-Nahrain University. His research interests include advanced Optical communications

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