Abstract
Analysis of the effects of dephasing on quantum features of the cavity radiation of externally pumped correlated emission laser is presented. It turns out that entanglement and nonclassical photon number correlations are strongly reliant on the rate at which the atomic coherent superposition decays specially when the amplitude of the driving radiation is smaller. It is, particularly, found that almost perfectly entangled light can be generated while the rate of dephasing and the amplitude of the external driving radiation are kept low in case the atoms are initially prepared in possible maximum coherence. It is also found that the nonclassical behavior of the photon correlation associated with the violation of Cauchy-Schwarz inequality decreases with the rate of dephasing except for some values of the amplitude of the driving radiation.