We report experimental results, showing that the Kerr beam self-cleaning of many low-order modes in a graded-index multimode fiber can be controlled thanks to optimized wavefront shaping of the coherent excitation beam. Adaptive profiling of the transverse input phase was utilized for channeling the launched power towards a specific low-order fiber mode, by exploiting nonlinear coupling among all guided modes. Experiments were carried out with 7 ps pulses at 1064 nm injected in a five meters long multimode fiber operating in the normal dispersion regime. Optimized Kerr beam self-cleaning of five different LP modes is reported, with a power threshold that increases with the mode order.

Wavefront shaping for optimized many-mode Kerr beam self-cleaning in graded-index multimode fiber / Deliancourt, E.; Fabert, M.; Tonello, A.; Krupa, K.; Desfarges-Berthelemot, A.; Kermene, V.; Millot, G.; Barthelemy, A.; Wabnitz, S.; Couderc, V.. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 27:12(2019), pp. 17311-17321. [10.1364/OE.27.017311]

Wavefront shaping for optimized many-mode Kerr beam self-cleaning in graded-index multimode fiber

Wabnitz S.;
2019

Abstract

We report experimental results, showing that the Kerr beam self-cleaning of many low-order modes in a graded-index multimode fiber can be controlled thanks to optimized wavefront shaping of the coherent excitation beam. Adaptive profiling of the transverse input phase was utilized for channeling the launched power towards a specific low-order fiber mode, by exploiting nonlinear coupling among all guided modes. Experiments were carried out with 7 ps pulses at 1064 nm injected in a five meters long multimode fiber operating in the normal dispersion regime. Optimized Kerr beam self-cleaning of five different LP modes is reported, with a power threshold that increases with the mode order.
2019
nonlinear optics; optical fibers; Kerr effect
01 Pubblicazione su rivista::01a Articolo in rivista
Wavefront shaping for optimized many-mode Kerr beam self-cleaning in graded-index multimode fiber / Deliancourt, E.; Fabert, M.; Tonello, A.; Krupa, K.; Desfarges-Berthelemot, A.; Kermene, V.; Millot, G.; Barthelemy, A.; Wabnitz, S.; Couderc, V.. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 27:12(2019), pp. 17311-17321. [10.1364/OE.27.017311]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1306302
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