%AAviles, Helena%AWu, Fan%AEznaveh, Z.%AEftekhar, Mohammad%AWise, Frank%ACorrea, R.%AChristodoulides, Demetrios%D2018%I %K %MOSTI ID: 10074940 %PMedium: X %TAnalysis of Parametric Instabilities in Parabolic Multimode Fibers under High Intensity Conditions %XWe systematically study geometric parametric instabilities in parabolic multimode fibers. We show, both analytically and experimentally, that global dispersion processes and self-focusing effects can substantially affect the spectral positions and widths of the generated sidebands. Country unknown/Code not availablehttps://doi.org/10.1364/CLEO_QELS.2018.FTh4E.6OSTI-MSA