A. Carena, P. Poggiolini, V. Curri, G. Bosco, F. Forghieri
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Evaluation of the dependence on system parameters of non-linear interference accumulation in multi-span links
Non-linear effects in uncompensated links generate a noise-like additive interference: we study in detail the accumulation law vs. number of spans as a function of main system parameters (fiber types and WDM total bandwidth). In all practical cases, we analytically found a slightly super-linear accumulation confirmed by numerical simulations.