期刊
出版社
IEEE
DOI: 10.1109/SUM57928.2023.10224444
关键词
Multimode fibers; Spatial beam self-cleaning; Nonlinear optics; Multimode photonics
The study reports on the experimental investigation of the polarization state of light during spatial beam self-cleaning in graded-index multimode fibers. It shows that intense multimode beams with varying degrees of polarization can be obtained under different experimental conditions, extending the applications of the beam self-cleaning effect and providing insights into its physical mechanisms.
We report on an extensive experimental study of the state of polarization of light during spatial beam self-cleaning in graded-index multimode fibers. Our results show that, depending on the experimental conditions, intense multimode beams with a bell-shape intensity profile can be obtained at the fiber output with a degree of polarization which ranges from a few percents to about 100%. These results extend the range of applications of the beam self-cleaning effect and provide novel useful insight for the understanding of the physical mechanisms behind the beam self-cleaning effect.
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