Cubic-quartic optical soliton perturbation with Fokas-Lenells equation by sine-Gordon equation approach

This paper recovers cubic-quartic optical solitons for perturbed Fokas-Lenells equation in polarization-preserving fibers and birefringent fibers. The perturbation terms appear with maximum permissible intensity. Singular and dark solitons, together with a few combo solitons, emerge from the sine-Gordon equation integration scheme.

Automated summary

This paper explores cubic-quartic optical solitons in perturbed Fokas-Lenells equation in polarization-preserving fibers and birefringent fibers. The perturbation terms are at maximum permissible intensity, leading to the emergence of singular and dark solitons, as well as a few combo solitons from the sine-Gordon equation integration scheme.