Generation of polarisation-squeezed light in a spatially periodic nonlinear optical medium with dissipation

An investigation is reported of the influence of losses and of thermal noise in a cubically nonlinear medium with a periodically inhomogeneous linear susceptibility on the generation of polarisation-squeezed light. Calculations are reported of the mean Stokes radiation parameters and of their variances. It is shown that the presence of losses is responsible for the existence of an interaction length optimal for suppression of fluctuations.