|Autors: Uzunov, I. M., Arabadzhiev, T. N., Georgiev, Z. D.|
Title: Time shift in the presence of linear and nonlinear gain, spectral filtering, third-order of dispersion and self-steepening effect
Abstract: We study the soliton time shift in the presence of linear and nonlinear gain, saturation of the nonlinear refractive index, spectral filtering, third-order of dispersion and self-steepening effect. The applied model generalizes the complex cubicquintic Ginzburg-Landau equation (CCQGLE) with the basic higher-order effects in fibers: the intrapulse Raman scattering (IRS), third-order of dispersion (TOD) and self-steepening effect. Soliton perturbation theory (SPT) is derived with which the influence of the saturation of the nonlinear refraction index, self-steepening and TOD on the appearance of the Poincare-Andronov-Hopf bifurcation is analyzed. It has been shown that TOD and self-steepening effect can lead to reduction in the time shift of the pulse. This prediction has been verified by numerical solution of generalized CCQGLE.
1. Nana, L., & Saadeu, G. K. (2023). Impact of higher-order effects on the stationary and pulsating localized soliton in a nonlinear and dissipative medium. Chaos, Solitons & Fractals, 173, 113671. - 2023 - в издания, индексирани в Scopus или Web of Science
Вид: публикация в международен форум, публикация в реферирано издание, индексирана в Scopus и Web of Science