Abstract
This article studies the dynamics of optical solitons in cubic-quintic nonlinear Schrodinger model that describes the propagation of femtosecond light pulses in optical fibers. The model is considered with self-steepening and self-frequency shift. As a result, the dark and singular optical solitons are extracted using \((G^{\prime }/G)\)-expansion scheme. Additionally, the constraint conditions for the existence of these solutions are also listed.
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