https://doi.org/10.1051/epjconf/202328710004
Refractive index profiling of multimode specialty optical fibers by absorption contrast X-ray computed microtomography
1 STAR Research Infrastructure, University of Calabria, Via Tito Flavio, 87036 Rende (CS), Italy
2 DIET, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
3 Department of Physics, University of Calabria, Via P. Bucci, 87069 Rende, Italy
4 DIMES, University of Calabria, Via P. Bucci, 87069 Rende, Italy
5 XLIM, UMR CNRS 7252, University of Limoges, 123 Avenue A. Thomas, 87060 Limoges, France
6 Faculty of Physics, University of Warsaw, Pasteura 5, 02-093, Warsaw, Poland
7 Lukasiewicz Research Network - Institute of Microelectronics and Photonics, Al. Lotnikow 32/46, 02-668, Warsaw, Poland
* Corresponding author: mario.ferraro92@unical.it
Published online: 18 October 2023
We report on successful refractive index profiling of commercially available step-index and in-house made graded-index multimode specialty optical fibers by means of X-ray computed microtomography. Our results demonstrate that the latter is an advantageous technique for characterizing large core optical fibers, which allows for retrieving information about the refractive index at optical frequencies by exploiting the absorption coefficient of X-rays.
© 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.
