Autors: Uzunov, I. M., Arabadzhiev, T. N.
Title: On the efficiency of different numerical methods for the calculation of intrapulse Raman scattering of optical solitons
Keywords: Nonlinear fiber optics, intrapulse Raman scattering, optical solitons, methods for the numerical solution of the nonlinear Schrödinger equation (NLSE) and a perturbed NLSE

Abstract: In this paper we compare the performance of different numerical methods for the calculation of the asymptotic evolution of soliton self-frequency shift in the presence of intrapulse Raman scattering (IRS) in optical fibers. First we have calculated the order of global accuracy for the fundamental soliton and the second-order bound state of the unperturbed nonlinear Schrödinger equation for the following numerical methods: the simple split step (SS) method, the full SS method, the reduced SS method, the reduced SS method with Runge-Kutta (RK4), the Blow-Wood method, the RK4IP method and the iterative Agrawal with one and two iterations. We have shown that the asymptotic evolution of soliton self-frequency shift in the presence of intrapulse Raman scattering (IRS) in optical fiber can be best described by the iterative Agrawal method (compared to the Blow-Wood method and the RK4IP method). The obtained numerical results for the soliton position and frequency are in agreement with the pr

References

    Issue

    , vol. 51, issue 283, pp. 1-16, 2019, Netherlands, Springer, ISBN ISSN 0306-8919

    Copyright Springer

    Цитирания (Citation/s):
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    Вид: статия в списание, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus и Web of Science