The Mean and Variance of Photon Number for Twin Light Beams Generated by Parametric Oscillator

摘要

A detailed photon statistics of twin light beams with the same and different frequencies produced by the process of parametric oscillation has been presented. We have described the process of the parametric oscillation with first-order Hamiltonian regardless of whether the twin light beams have the same or different frequencies. According to our study we have observed that the mean photon number of the cavity mode decreases with the cavity damping constant increase, which implies that the more photons are escaped from the cavity for the large damping constant and the mean photon number of residue pump mode increases with the amplitude of pump mode.