Optical solitons for nonlinear Schrodinger (NLS) equation in normal dispersive regimes

We operate variational iteration method for obtaining exact analytical solutions for nonlinear Schrodinger (NLS) equation with normal dispersive regimes. A set of diverse types of solitons that contains optical dark solitons are furnished with significant physical perspective. VIM gives the solution in a rapidly convergent series structure. The current analysis under study depicts pertinent attributes of considered method. Additionally, improved (G'/G) expansion method is employed to NLS equation, generating soliton solutions having rich spatial-temporal configuration along with abundant free parameters.