Photo-refractive Bragg gratings in center-symmetrical materials

Abstract

The processes and the properties of the creation of the photo-refractive Bragg gratings in center-symmetrical materials by considering of the coherent interactions of the laser radiations have been analyzed. Characteristic experimental results of the scattering and the diffraction of light on photo-refractive Bragg gratings in volumetric glass materials are considered and the possible mechanisms of the observed and investigated processes are discussed.