title: Single- and cross-channel nonlinear interference in the Gaussian Noise model with rectangular spectra.
abstract: New semi-analytic formulas of the power spectral density (PSD) of single- and cross-channel nonlinear interference (NLI) in coherent optical links for which the Gaussian Noise (GN) model applies are presented. From the PSD, a new bound on cross-channel NLI power is obtained. The new formulas are useful to both quickly compute single- and cross-channel NLI power, and to test the accuracy of numerical routines that directly solve the double frequency integral in the GN reference formula.
authors: Alberto
authors: A
authors: Bononi
authors: Ottmar
authors: O
authors: Beucher
authors: Paolo
authors: P
authors: Serena