A Lower Bound on the per Soliton Capacity of the Nonlinear Optical Fibre Channel

TL;DR

This paper derives a closed-form lower bound on the per soliton capacity of nonlinear optical fiber channels affected by ASE noise, showing it grows logarithmically with signal-to-noise ratio.

Contribution

It introduces a novel lower bound based on a non-Gaussian probability density function for soliton amplitude jitter, advancing understanding of channel capacity limits.

Findings

Lower bound grows logarithmically with SNR

Non-Gaussian PDF models soliton amplitude jitter

Provides insights into capacity limits of optical fibers

Abstract

A closed-form expression for a lower bound on the per soliton capacity of the nonlinear optical fibre channel in the presence of (optical) amplifier spontaneous emission (ASE) noise is derived. This bound is based on a non-Gaussian conditional probability density function for the soliton amplitude jitter induced by the ASE noise and is proven to grow logarithmically as the signal-to-noise ratio increases.