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Date publication
septembre 2024
Journal
Optics letters
Auteurs
Membres identifiés du Cancéropôle Est :
Pr MILLOT Guy
Tous les auteurs :
Dupiol R, Krupa K, Tonello A, Arosa Y, Mansuryan T, Fevrier S, Fabert M, Modotto D, Wabnitz S, Millot G, Couderc V
Lien Pubmed
Résumé
We experimentally study the spatial beam profile and the spectral broadening at the output of a multimode air-silica microstructure fiber taper, used along the direction of an increasing fiber diameter. By using a laser pump at 1064 nm emitting 60 ps Gaussian beam pulses, we observed a competition between Raman beam cleanup and Kerr beam self-cleaning: the multimode frequency conversion process permits to generate spectral sidebands with frequency detuning from the pump that are difficult to obtain in standard graded-index multimode fibers. The generated supercontinuum spans from 500 nm up to 2.5 µm.
Référence
Opt Lett. 2024 09 15;49(18):5111-5114
