Dynamics of chirped Airy pulse in a dispersive medium with higher-order nonlinearity

TL;DR

This paper numerically investigates how chirped finite energy Airy pulses behave in dispersive, nonlinear media, revealing soliton shedding, chirp-controlled dynamics, and potential applications in supercontinuum generation.

Contribution

It introduces a detailed numerical analysis of FECAP propagation considering higher-order nonlinearities, highlighting chirp as a control parameter for pulse and spectral dynamics.

Findings

Chirp influences soliton shedding and pulse delay or advancement.

Chirp can be used to control spectral manipulation.

Results have implications for supercontinuum generation.

Abstract

Chirp can control the dynamics of the Airy pulse, making it an essential factor in pulse manipulation. Finite energy chirped Airy pulse (FECAP) has potential applications in underwater optical communication and imaging. Hence, it's critical to study the propagation of FECAP. We present a numerical investigation of the propagation dynamics of a FECAP in a dispersive, and highly nonlinear medium. The nonlinearity under study includes self-phase modulation (SPM), self-steepening (SS), as well as intra-pulse Raman scattering (IRS) terms. We have observed soliton shedding and the chirp parameter is demonstrated to have a considerable impact on the pulse dynamics. In particular, the emergent soliton does not propagate in a straight path instead, depending on the sign of the chirp parameter, it delays or advances in the time. Furthermore, it has been established that the chirp can be employed as an alternate control parameter for the spectral manipulation. The results of our study may have implications in supercontinuum generation and for producing tunable sources.