Abstract

In this paper the results of the numerical investigations for different modulation formats in 40 Gb/s based WDM transmission systems over standard single mode fiber (SSMF) are present. The aim of our works was a precise investigation of the transmission behavior of 40 Gb/s WDM systems considering different modulation formats in linear and nonlinear transmission regime. Thereby the maximum achievable spectral efficiency for each modulation format has been analysed.

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