Ultrabroadband dispersive radiation by spatiotemporal oscillation of multimode waves

TL;DR

This paper investigates how three-dimensionally evolving nonlinear optical waves in multimode fibers generate ultrabroadband dispersive radiation through spatiotemporal oscillations, opening new avenues for broadband coherent light sources.

Contribution

It demonstrates the generation of ultrabroadband dispersive waves from spatiotemporal oscillations of solitons in multimode fibers, a novel mechanism for broadband light source development.

Findings

Generation of multimode dispersive wave sidebands over an ultrabroadband spectral range

Spatiotemporal oscillations of solitons induce broadband radiation

Potential for multipurpose coherent electromagnetic wave sources

Abstract

Despite the abundance and importance of three-dimensional systems, relatively little progress has been made on spatiotemporal nonlinear optical waves compared to time-only or space-only systems. Here we study radiation emitted by three-dimensionally evolving nonlinear optical waves in multimode fiber. Spatiotemporal oscillations of solitons in the fiber generate multimode dispersive wave sidebands over an ultrabroadband spectral range. This work suggests routes to multipurpose sources of coherent electromagnetic waves, with unprecedented wavelength coverage.