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

被引：36
|
作者：
Deliancourt, E. [1 ]
Fabert, M. [1 ]
Tonello, A. [1 ]
Krupa, K. [2 ]
Desfarges-Berthelemot, A. [1 ]
Kermene, V [1 ]
Millot, G. [2 ]
Barthelemy, A. [1 ]
Wabnitz, S. [3 ]
Couderc, V [1 ]
机构：
[1] Univ Limoges, XLIM, UMR CNRS 7252, 123 Av A Thomas, F-87060 Limoges, France
[2] Univ Bourgogne Franche Comte, ICB, UMR CNRS 6303, 9 Av A Savary, F-21078 Dijon, France
[3] Sapienza Univ Rome, DIET, Via Eudossiana 18, I-00184 Rome, Italy
来源：
OPTICS EXPRESS | 2019年 / 27卷 / 12期
基金：
欧洲研究理事会;
关键词：
SUPERCONTINUUM GENERATION; LIGHT;
D O I：
10.1364/OE.27.017311
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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
引用
收藏
页码：17311 / 17321
页数：11
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