https://doi.org/10.1051/epjconf/202328706026
Mid-infrared generation beyond 3.5 µm in a graded-index silica fiber
1 Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR6303 CNRS-Universite de Bourgogne, Dijon, France
2 Department of Optics and Photonics, Wroclaw University of Science and Technology, Wroclaw, Poland
* e-mail: karolina.stefanska@pwr.edu.pl
** e-mail: bertrand.kibler@u-bourgogne.fr
Published online: 18 October 2023
We present theoretical as well as experimental evidence of far-detuned nonlinear wavelength conversion towards the mid-infrared, namely beyond 3.5 µm, in a few-mode graded-index silica fiber pumped at 1.064 µm. We take into account the full frequency-dependence of the propagation constants, which allows us to obtain excellent agreement of theoretical predictions with experimental observations and provides new and accurate interpretation of intramodal and intermodal four-wave mixing processes in few-mode fibers.
© 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.
