On spatial beam self-cleaning from the perspective of optical wave thermalization in multimode graded-index fibers

M Ferraro, F Mangini, M Zitelli, S Wabnitz - Advances in Physics: X, 2023 - Taylor & Francis
The input power-induced transformation of the transverse intensity profile at the output of
graded-index multimode optical fibers from speckles into a bell-shaped beam sitting on a …

Spatial beam self-cleaning in multimode fibres

K Krupa, A Tonello, BM Shalaby, M Fabert… - Nature …, 2017 - nature.com
Multimode optical fibres are enjoying renewed attention, boosted by the urgent need to
overcome the current capacity crunch of single-mode fibre (SMF) systems and by recent …

Observation of geometric parametric instability induced by the periodic spatial self-imaging of multimode waves

K Krupa, A Tonello, A Barthélémy, V Couderc… - Physical review …, 2016 - APS
Spatiotemporal mode coupling in highly multimode physical systems permits new routes for
exploring complex instabilities and forming coherent wave structures. We present here the …

Statistical mechanics of beam self-cleaning in GRIN multimode optical fibers

F Mangini, M Gervaziev, M Ferraro, DS Kharenko… - Optics …, 2022 - opg.optica.org
Since its first demonstration in graded-index multimode fibers, spatial beam self-cleaning
has attracted a growing research interest. It allows for the propagation of beams with a bell …

[PDF][PDF] Multimode nonlinear fiber optics, a spatiotemporal avenue

K Krupa, A Tonello, A Barthélémy, T Mansuryan… - APL Photonics, 2019 - pubs.aip.org
We provide a perspective overview of the emerging field of nonlinear optics in multimode
optical fibers. These fibers enable new methods for the ultrafast light-activated control of …

Nonlinear beam self-imaging and self-focusing dynamics in a GRIN multimode optical fiber: theory and experiments

T Hansson, A Tonello, T Mansuryan, F Mangini… - Optics …, 2020 - opg.optica.org
Beam self-imaging in nonlinear graded-index multimode optical fibers is of interest for many
applications, such as implementing a fast saturable absorber mechanism in fiber lasers via …

Spatiotemporal characterization of supercontinuum extending from the visible to the mid-infrared in a multimode graded-index optical fiber

K Krupa, C Louot, V Couderc, M Fabert, R Guénard… - Optics Letters, 2016 - opg.optica.org
We experimentally demonstrate that pum** a graded-index multimode fiber with sub-ns
pulses from a microchip Nd: YAG laser leads to spectrally flat supercontinuum generation …

Mode attraction, rejection and control in nonlinear multimode optics

K Ji, I Davidson, J Sahu, DJ Richardson… - Nature …, 2023 - nature.com
Novel fundamental notions hel** in the interpretation of the complex dynamics of
nonlinear systems are essential to our understanding and ability to exploit them. In this work …

Accelerated nonlinear interactions in graded-index multimode fibers

MA Eftekhar, Z Sanjabi-Eznaveh… - Nature …, 2019 - nature.com
Multimode optical fibers have recently reemerged as a viable platform for addressing a
number of long-standing issues associated with information bandwidth requirements and …

Fast and accurate modeling of nonlinear pulse propagation in graded-index multimode fibers

M Conforti, C Mas Arabi, A Mussot, A Kudlinski - Optics Letters, 2017 - opg.optica.org
We develop a model for the description of nonlinear pulse propagation in multimode optical
fibers with a parabolic refractive index profile. It consists of a 1+ 1 D generalized nonlinear …