Solitons and other solutions for coupled nonlinear Schrodinger equations using three different techniques

In this paper, we apply three different techniques, namely, the sine-cosine method, the new extended auxiliary equation method and the modified simple equation method for constructing many new exact solutions with parameters as well as bright-dark, singular and other soliton solutions of the coupled nonlinear Schrodinger equations. The solutions of these coupled nonlinear equations are compared with the well-known results.