Nonlinear polarization dynamics of Kerr beam self-cleaning in a GRIN multimode optical fiber
Katarzyna Krupa, Graciela Garmendia Casta\~neda, Alessandro Tonello,, Alioune Niang, Denis S. Kharenko, Marc Fabert, Vincent Couderc, Guy Millot,, Umberto Minoni, Daniele Modotto, Stefan Wabnitz
TL;DR
This paper investigates how Kerr beam self-cleaning in a graded-index multimode optical fiber affects polarization, revealing that spatial beam cleaning is linked with nonlinear polarization rotation and increased linear polarization.
Contribution
It provides the first experimental analysis of polarization dynamics during Kerr beam self-cleaning in multimode fibers, highlighting the relationship between spatial and polarization properties.
Findings
Spatial beam cleaning correlates with nonlinear polarization rotation.
Degree of linear polarization significantly increases during self-cleaning.
Polarization dynamics are coupled with nonlinear optical effects.
Abstract
We experimentally study polarization dynamics of Kerr beam self-cleaning in a graded-index multimode optical fiber. We show that spatial beam cleaning is accompanied by nonlinear polarization rotation, and a substantial increase of the degree of linear polarization.
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