Cubic-quartic optical solitons in birefringent fibers with four forms of nonlinear refractive index

摘要

This paper studies cubic-quartic solitons in birefringent fibers having Kerr, parabolic, quadratic-cubic and non-local laws of refractive index. Bright, dark and singular solitons are recovered by Riccati function approach, sine-Gordon function technique and F-expansion scheme.