Cubic-quartic solitons perturbation with couplers in optical metamaterials having triple-power law nonlinearity using extended F-expansion method

Abstract

In this article, the extended F-expansion method is applied to obtain cubic-quartic optical solitons for couplers in optical metamaterials with nonlinear perturbation terms and triple-power law of nonlinearity. Bright soliton solutions, bright–singular combo soliton solutions and singular soliton solutions are extracted. Also, periodic solutions, combo periodic solutions, exponential solutions and rational solutions are derived. Moreover, for the physical illustration, some of the obtained solutions are represented graphically.