The linear amplifier with the superposition of displaced Fock states (DFS's
) as an input field is discussed. The s-parameterized characteristic functi
on (CF) of linear amplifier for the super-position of two DFS's is consider
ed. Several quantum statistical expectation values for the output of linear
amplifier are evaluated once the time dependent CF has been computed. The
Glauber second-order coherence function is calculated. The squeezing proper
ties of the output field are studied. The s-ordered quasiprobability distri
bution function (QDF) for the output of linear amplifier driven by DFS's su
perposition is investigated. The phase properties of the superposition of D
FS's are studied. The s-parameterized phase distribution, obtained by integ
rating the s-parameterized QDF over radial variable is illustrated.