Abstract

Moustafa Hussein Aly
FWM Suppression in WDM Systems Using Advanced Modulation Formats
In this paper, four wave mixing (FWM) and its impact on wavelength division multiplexing (WDM) is examined through a computer simulation (VPI Transmission Maker) using different advanced modulation formats. The modulation formats covered are NRZ, RZ, CRZ, CS-RZ and duobinary. The obtained results assure that the duobinary format yields the better performance corresponding to less FWM product powers of lower, upper, lowest and highest neighborhood channels.