CORRELATION-FUNCTIONS OF THE 2-MODE RING LASER

The intensity and amplitude correlation functions of the optical field of a ring laser at line center are calculated, under conditions when the two pump parameters corresponding to the counter-rotating traveling wave modes are not necessarily equal. This represents a generalization of earlier treatments by M-Tehrani and Mandel (1978) and Hioe (1978). The laser is assumed to be at rest. A perturbative technique is used to express the correlation functions for a small difference μ of pump parameters in terms of the solutions for μ=0. It is found that the cross correlations are unchanged to the first order in μ, whereas the autocorrelations both of the light amplitude and of the light intensity are modified. Curves are presented to illustrate the behavior. © 1979 The American Physical Society.