  In this work we make use of deformed operators to construct the coherent
states of some nonlinear systems by generalization of two definitions: i) As
eigenstates of a deformed annihilation operator and ii) by application of a
deformed displacement operator to the vacuum state. We also construct the
coherent states for the same systems using the ladder operators obtained by
traditional methods with the knowledge of the eigenfunctions and eigenvalues of
the corresponding Schr\"odinger equation. We show that both methods yield
coherent states with identical algebraic structure.
