Numerical simulation of the beam self-cleaning process in a multimode graded-index fibre during propagation of a pump wave and a Stokes component
01 Pubblicazione su rivista
Sidelnikov O S, Podivilov E V, Babin S A, Wabnitz S, Fedoruk M P
DOI: 10.1070/QEL17456
ISSN: 1063-7818
A model of coupled modes is proposed, which makes it possible to describe the propagation of a pump wave and a Stokes component in a multimode graded-index fibre. A decrease in the depression in the centre of the profile of the pump wave intensity distribution as a result of the influence of Kerr effects and random linear coupling of modes is demonstrated.