The last few years have seen a wealth of new nonlinear propagation modeling results
appear in the literature, especially regarding coherent systems operating in the absence of …

This paper is devoted to an in-depth discussion of the Gaussian Noise (GN) model which
describes non-linear propagation in uncompensated coherent transmission systems. Similar …

We address perturbative models for the impact of nonlinear propagation in uncompensated
links. We concentrate on a recently-proposed model which splits up the signal into spectral …

The GN-model has been proposed as an approximate but sufficiently accurate tool for
predicting uncompensated optical coherent transmission system performance, in realistic …

Several approximate non-linear fiber propagation models have been proposed over the
years. Recent re-consideration and extension of earlier modeling efforts has led to the …

The GN-model neglects the initial signal dispersion transient in the fiber. We show that this
circumstance causes the coherent-accumulation GN-model to provide a lower-bound to …

A general theory of nonlinear interactions between signal and amplified spontaneous
emission noise in wavelength division multiplexed fiber-optic coherent transmission systems …

The Gaussian noise (GN) model, in which the fiber nonlinearity is modeled as an additive
GN process, has been recently shown in the literature to be accurate for uncompensated …

Link design for optical communication systems requires accurate modeling of nonlinear
propagation in fibers. This topic has been widely analyzed in last decades with partial …

From first-order perturbation theory, we derive the autocorrelation function of the nonlinear
interference in coherent optical links. We show that the fundamental assumptions of the …