https://doi.org/10.1051/epjconf/202328706027
Beam-by-beam Kerr clean-up in multimode optical fibres – INVITED
1 DIET, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
2 Department of Physics, University of Calabria, Via P. Bucci, 87069 Rende, Italy
3 XLIM, UMR CNRS 7252, University of Limoges, 123 Avenue A. Thomas, 87060 Limoges, France
4 Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland
5 Institute of Automation and Electrometry SBRAS, 1 ac. Koptyug ave., Novosibirsk 630090, Russia
6 Novosibirsk State University, Novosibirsk 630090, Russia
* Corresponding author: mario.ferraro92@unical.it
Published online: 18 October 2023
We propose and demonstrate the concept of beam-by-beam cleaning in multimode optical fibres, i.e., the increase of the spatial quality of an intense laser beam, induced by a relatively weak, quasi singlemode seed beam. This effect, which relies on the Kerr nonlinearity of the fibre, is quite efficient: a seed beam is capable of providing a bell-shape to a ten times more powerful beam. Our results pave the way for the development of a new class of all-optical switching devices for intense laser beams.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
