Squeezed light generation in a medium governed by the nonlinear Schrodinger equation.

A first order perturbation calculation is performed on a generalized nonlinear Schrodinger equation in order to investigate the degree of squeezing that can be obtained for a medium described by such a field theory. Expressions for the amount of squeezing in the normal and anomalous dispersion regimes is obtained. In particular, it is found that the bandwidth over which squeezing occurs is greater in the anomalous dispersion region than in the normal dispersion region. By keeping fourth order derivatives in the field the squeezing when the pump is located at the zero dispersion wavelength is also investigated.