Optical solitons for higher-order nonlinear Schr?dinger’s equation with three exotic integration architectures

摘要： In this paper, to build soliton solutions of the governing equation, describing a propagation of sub-picosecond pulses with cubic-quintic nonlinearity and fourth-order dispersion in optical fibers, we use three methods: auxiliary equation, sine-cosine method and csch function method. The results obtained are 1-soliton solutions that propagate in the fiber optic and LHMs.