Quantum states of the light for dynamic diffraction in the DFB system

A new method of formation of quantum states of the light in a system with non-linear dynamic diffraction is discussed for the first time. The squeezed states of the light are obtained for two geometries (Bragg and Laue) of non-linear diffraction in a spatially periodic medium. The approach also gives new opportunities for the experimental verification of the quantum properties of the light.