Quadratic Peregrine solitons resonantly radiating without higher-order dispersion
OPTICS LETTERS(2022)
摘要
We show that two-color Peregrine solitary waves in quadratic nonlinear media can resonantly radiate dispersive waves even in the absence of higher-order dispersion, owing to a phase-matching mechanism that involves the weaker second-harmonic component. We give very simple criteria for calculating the radiated frequencies in terms of material parameters, finding excellent agreement with numerical simulations. (C) 2022 Optica Publishing Group
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