期刊
OPTICS EXPRESS
卷 27, 期 12, 页码 17311-17321出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.27.017311
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资金
- European Research Council (ERC), under the European Union's Horizon 2020 research and innovation program (STEMS project) [740355]
- French Agence Nationale de la Recherche, POMAD project [ANR-14-CE26-0035-01]
- French Investissements d'Avenirprogram, project ISITE-BFC [ANR-15-IDEX-0003]
- CILAS - Ariane Group [0C1XBB007]
- Agence Nationale de la Recherche (ANR) [ANR-14-CE26-0035] Funding Source: Agence Nationale de la Recherche (ANR)
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. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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