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Some results on discrete eigenvalues for the Stochastic Nonlinear Schrödinger Equation in fiber optics Cover

Some results on discrete eigenvalues for the Stochastic Nonlinear Schrödinger Equation in fiber optics

By: Laura Prati and  Luigi Barletti  
Open Access
|Mar 2018

Abstract

We study a stochastic Nonlinear Schrödinger Equation (NLSE), with additive white Gaussian noise, by means of the Nonlinear Fourier Transform (NFT). In particular, we focus on the propagation of discrete eigenvalues along a focusing fiber. Since the stochastic NLSE is not exactly integrable by means of the NFT, then we use a perturbation approach, where we assume that the signal-to-noise ratio is high. The zeroth-order perturbation leads to the deterministic NLSE while the first-order perturbation allows to describe the statistics of the discrete eigenvalues. This is important to understand the properties of the channel for recently devised optical transmission techniques, where the information is encoded in the nonlinear Fourier spectrum.

Language: English
Page range: 87 - 103
Submitted on: Jan 30, 2017
Accepted on: Feb 20, 2018
Published on: Mar 24, 2018
Published by: Italian Society for Applied and Industrial Mathemathics
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2018 Laura Prati, Luigi Barletti, published by Italian Society for Applied and Industrial Mathemathics
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.