Kerr beam self-cleaning on the LP11 mode in graded-index multimode fibers
| Autor: | E. Deliancourt, M. Fabert, A. Tonello, K. Krupa, A. Desfarges-Berthelemot, V. Kermene, G. Millot, A. Barthélémy, S. Wabnitz, V. Couderc |
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| Přispěvatelé: | Photonique Fibre et Sources Cohérentes (XLIM-PHOT), XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), Institute of Microelectronics and Optoelectronics, Politechnika Wroclawska [Wrocław], Laboratoire Interdisciplinaire Carnot de Bourgogne [Dijon] (LICB), Université de Bourgogne (UB)-Université de Technologie de Belfort-Montbeliard (UTBM)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2019 |
| Předmět: |
010309 optics
Nonlinear optics optical fibers Kerr effect [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] 0103 physical sciences Electrical and Electronic Engineering 010306 general physics 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials |
| Zdroj: | OSA Continuum OSA Continuum, OSA Publishing, 2019, 2 (4), pp.1089. ⟨10.1364/OSAC.2.001089⟩ |
| ISSN: | 2578-7519 |
| DOI: | 10.1364/osac.2.001089 |
| Popis: | International audience; We report the experimental observation of Kerr beam self-cleaning in a graded-index multimode fiber, leading to output beam profiles different from a bell shape, close to the LP 01 mode. For specific light injection conditions, nonlinear coupling among the guided modes can reshape the output speckle pattern generated by a pulsed beam into the low order LP 11 mode. This effect was observed in a few meters-long multimode fiber with 750 ps pulses at 1064 nm in the normal dispersion regime. The power threshold for LP 11 mode self-cleaning was about three times larger than that required for Kerr nonlinear self-cleaning into the LP 01 mode. |
| Databáze: | OpenAIRE |
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