2022/10/02 by Chowdury, Amdad, Chang, Wonkeun, Battiato, Marco
#FOS: Physical sciences #Pattern Formation and Solitons (nlin.PS)
paper · doi:10.48550/arxiv.2210.00426
Using the generalised nonlinear Schrödinger equation, we investigate how the effect of third-order dispersion, self-steepening, and Raman-induced-self-frequency shift have an impact on the higher-order rogue waves. We observe that individually each effect breaks apart the higher-order rogue waves reducing to their constituent fundamental parts similar to how a higher-order soliton undergoes fission. We demonstrate that under the influence of their combined effect, the disintegrated elements of higher-order rogue waves become fundamental solitons creating asymmetrical spectral profiles that generate both red and blue-shifted frequency components. These observations reveal the mechanisms that create a large number of solitons in the process of modulation instability-induced supercontinuum generation from a continuous-wave background in optical fibers.