Collision between a dark soliton and a linear wave in an optical fiber

TL;DR

This paper experimentally studies the interaction between a linear wave and a dark soliton in an optical fiber, revealing frequency conversion effects dependent on their properties, supported by theory and simulations.

Contribution

It provides the first experimental observation of dark soliton and linear wave collision effects in optical fibers, including phase-matching-based frequency emission analysis.

Findings

Emission wavelength predicted by phase-matching

Efficiency depends on soliton grayness and wave wavelength

Results agree with theoretical and numerical models

Abstract

We report an experimental observation of the collision between a linear wave propagating in the anomalous dispersion region of an optical fiber and a dark soliton located in the normal dispersion region. This interaction results in the emission of a new frequency component whose wavelength can be predicted using phase-matching arguments. The measured efficiency of this process shows a strong dependency with the soliton grayness and the linear wave wavelength, and is in a good agreement with theory and numerical simulations.