Random Mode Coupling Assists Kerr Beam Self-Cleaning in a Graded-Index Multimode Optical Fiber

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,...

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Bibliographic Details
Published in:arXiv.org 2019-08
Main Authors: Sidelnikov, Oleg S, Podivilov, Evgeniy V, Fedoruk, Mikhail P, Wabnitz, Stefan
Format: Article
Language:English
Subjects:
Cleaning
Coupled modes
Coupling
Investigations
Mathematical models
Optical fibers
Online Access:Get full text
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Summary: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.
ISSN:2331-8422