Journal article
Spatial beam cleanup by pure Kerr processes in multimode fibers
Recent experiments with pulse propagation in multimode graded-index fibers have shown a nonlinear improvement in beam quality, even in situations where dissipative processes such as Raman scattering play no significant role. In this Letter, numerical simulations of beam cleanup by third-order Kerr nonlinearities in a multimode fiber are used to demonstrate that in the absence of dissipative processes beam cleanup is crucially dependent on spectral/temporal disorder and does not occur in a continuous-wave model.
This finding is in accordance with fundamental considerations on entropy. (C) 2018 Optical Society of America
Language: | English |
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Year: | 2018 |
Pages: | 2700-2703 |
ISSN: | 15394794 and 01469592 |
Types: | Journal article |
DOI: | 10.1364/OL.43.002700 |
ORCIDs: | Lægsgaard, Jesper |