Abstract

An efficient numerical approach to nonlinear propagation in waveguides based on an approximation of the overlap integrals’ frequency dependence is proposed. Two test cases are studied: a weakly guiding step-index fiber and a weakly guiding parabolic-index fiber, where the approximation is compared to the standard approach of neglecting the frequency dependence and calculating the overlaps at a center wavelength ${\lambda _0}$, and benchmarked against a Gaussian quadrature approach, whose accuracy can be increased systematically. We believe that the combined accuracy and efficiency of the proposed approximation make it superior to the other two approaches in few-mode simulations.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
Efficient simulation of multimodal nonlinear propagation in step-index fibers

Jesper Lægsgaard
J. Opt. Soc. Am. B 34(10) 2266-2273 (2017)

Mode profile dispersion in the generalized nonlinear Schrödinger equation

J. Lægsgaard
Opt. Express 15(24) 16110-16123 (2007)

Full-vectorial multimode nonlinear simulations on a real-space Fourier–Gauss grid

J. Lægsgaard
J. Opt. Soc. Am. B 36(8) 2235-2243 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Data Availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (27)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription