In this paper, we numerically investigate the process of beam self-cleaning in a graded-index multimode optical fiber, by using the coupled-mode model. We introduce various models of random linear coupling between spatial modes, including coupling between all modes, or only between degenerate ones, and investigate the effects of random mode coupling on the beam self-cleaning process. The results of numerical investigations are in complete agreement with our experimental data.
Random mode coupling assists Kerr beam self-cleaning in a graded-index multimode optical fiber / Sidelnikov, O. S.; Podivilov, E. V.; Fedoruk, M. P.; Wabnitz, S.. - In: OPTICAL FIBER TECHNOLOGY. - ISSN 1068-5200. - 53:(2019), p. 101994. [10.1016/j.yofte.2019.101994]
Random mode coupling assists Kerr beam self-cleaning in a graded-index multimode optical fiber
Wabnitz S.
2019
Abstract
In this paper, we numerically investigate the process of beam self-cleaning in a graded-index multimode optical fiber, by using the coupled-mode model. We introduce various models of random linear coupling between spatial modes, including coupling between all modes, or only between degenerate ones, and investigate the effects of random mode coupling on the beam self-cleaning process. The results of numerical investigations are in complete agreement with our experimental data.| File | Dimensione | Formato | |
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