Abstract
We numerically study the characteristics of optical rogue waves (RWs) in midinfrared supercontinuum (MIR-SC) generation with a femtosecond pump in the anomalous dispersion regime of a chalcogenide photonic crystal fiber. An approach based on seed-induced modulation instability is used to regulate the formation of optical RWs. By carrying out multiple simulations in the presence of noise, we show that optical RWs can be generated in a more controlled manner by providing a seed with an optimum modulation frequency. The redshift range of optical RWs is expanded to a considerable extent in the seed-induced case rather than the noise-induced case. Furthermore, the increase of pump power can facilitate the redshift of optical RWs. These results demonstrate how a seed pulse affects the formation of optical RW for MIR-SC generation with a femtosecond pump in the anomalous dispersion regime of fiber, indicating that optical RW can be used to generate ultra-broadband MIR-SC.
Published Version
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