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arXiv · 1402.3528

A Simple and Effective Closed-Form GN-Model Correction Formula Accounting for Signal Non-Gaussian Distribution

P. Poggiolini·G. Bosco·A. Carena·V. Curri·Y. Jiang·F. Forghieri
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Abstract

The GN model of non-linear fiber propagation has been shown to overestimate the variance of non-linearity due to the signal Gaussianity approximation, leading to maximum reach predictions for realistic optical systems which may be pessimistic by about 5% to 15%, depending on fiber type and system set-up. Analytical corrections have been proposed, which however substantially increase the model complexity. In this paper we provide a simple closed-form GN model correction formula, derived from the EGN model, which we show to be quite effective in correcting for the GN model tendency to overestimate non-linearity. The formula also permits to clearly identify the correction dependence on key system parameters, such as span length and loss.

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P. Poggiolini, G. Bosco, A. Carena, V. Curri, Y. Jiang, F. Forghieri. 2014-02-14. A Simple and Effective Closed-Form GN-Model Correction Formula Accounting for Signal Non-Gaussian Distribution. https://doi.org/10.1109/jlt.2014.2387891

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