Spatiotemporal characterization of supercontinuum extending from the visible to the mid-infrared in a multimode graded-index optical fiber
Authors: 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.
Autors Affiliation: Univ Limoges, XLIM, UMR CNRS 7252, 123 Ave A Thomas, F-87060 Limoges, France; Univ Bourgogne Franche Comte, ICB UMR CNRS 6303, 9 Ave A Savary, F-21078 Dijon, France; Tanta Univ, Dept Phys, Fac Sci, Tanta 31527, Egypt; Univ Brescia, Dipartimento Ingn Informaz, Via Branze 38, I-25123 Brescia, Italy; Univ Brescia, INO CNR, Via Branze 38, I-25123 Brescia, Italy
Abstract: 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. (C) 2016 Optical Society of America.
Journal/Review: OPTICS LETTERS
Volume: 41(24) Pages from: 5785 to: 5788
KeyWords: INSTABILITY; GENERATIONDOI: 10.1364/OL.41.005785Citations: 71data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2022-01-23References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here