Spatiotemporal characterization of supercontinuum extending from the visible to the mid-infrared in a multimode graded-index optical fiber.

Date publication

décembre 2016

Journal

Optics letters

Auteurs

Membres identifiés du Cancéropôle Est :
Pr MILLOT Guy

Tous les auteurs :
Krupa K, Louot C, Couderc V, Fabert M, Guenard R, Shalaby BM, Tonello A, Pagnoux D, Leproux P, Bendahmane A, Dupiol R, Millot G, Wabnitz S

Lien Pubmed

https://www.ncbi.nlm.nih.gov/pubmed/27973502

Résumé

We experimentally demonstrate that pumping a graded-index multimode fiber with sub-ns pulses from a microchip Nd:YAG laser leads to spectrally flat supercontinuum generation with a uniform bell-shaped spatial beam profile extending from the visible to the mid-infrared at 2500 nm. We study the development of the supercontinuum along the multimode fiber by the cut-back method, which permits us to analyze the competition between the Kerr-induced geometric parametric instability and stimulated Raman scattering. We also performed a spectrally resolved temporal analysis of the supercontinuum emission.

Référence

Opt Lett. 2016 12 15;41(24):5785-5788