ИСТИНА

In this work we investigate theoretically the spatial features of non-classical squeezed light generated in a system of two separated nonlinear crystals which is in fact a nonlinear interferometer. Such scheme is convenient for practical purposes as it allows one to control effectively the properties of generated light. The image of output light can be obtained both in the near and far field region by focusing it in the image or focal plane respectively. The analysis of mode content and spatial properties of bright squeezed vacuum is based on the theoretical approach developed using the Schmidt decomposition.