We propose and demonstrate the concept of beam-by-beam cleaning in multimode optical fibres, i.e., the increase of the spatial quality of an intense laser beam, induced by a relatively weak, quasi singlemode seed beam. This effect, which relies on the Kerr nonlinearity of the fibre, is quite efficient: a seed beam is capable of providing a bell-shape to a ten times more powerful beam. Our results pave the way for the development of a new class of all-optical switching devices for intense laser beams.
Beam-by-beam Kerr clean-up in multimode optical fibres – INVITED / Ferraro, Mario; Mangini, Fabio; Leventoux, Yann; Tonello, Alessandro; Zitelli, Mario; Sun, Yifan; Fevrier, Sebastien; Krupa, Katarzyna; Kharenko, Denis; Wabnitz, Stefan; Couderc, Vincent. - 287:(2023). (Intervento presentato al convegno EOS Annual Meeting (EOSAM 2023) tenutosi a Dijon, France) [10.1051/epjconf/202328706027].
Beam-by-beam Kerr clean-up in multimode optical fibres – INVITED
Ferraro, Mario;Mangini, Fabio;Zitelli, Mario;Sun, Yifan;Wabnitz, Stefan;Couderc, Vincent
2023
Abstract
We propose and demonstrate the concept of beam-by-beam cleaning in multimode optical fibres, i.e., the increase of the spatial quality of an intense laser beam, induced by a relatively weak, quasi singlemode seed beam. This effect, which relies on the Kerr nonlinearity of the fibre, is quite efficient: a seed beam is capable of providing a bell-shape to a ten times more powerful beam. Our results pave the way for the development of a new class of all-optical switching devices for intense laser beams.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
