Squeezing in nondegenerate four-wave mixing

Ways to minimize spontaneous-emission noise due to quantum fluctuations in the medium are a major consideration in experiments designed to produce squeezed states of light. Motivated by the recent experiments of Slusher et al. we present a fully quantized model of nondegenerate four-wave mixing. We show that the spontaneous-emission noise, important at higher intensities in the degenerate case, may be minimized in the nondegenerate case for certain regimes of cavity and medium parameters.