Three-color laser for pulse holography

A development of a three-colour solid-state laser on phosphate neodymium glass for pulse holography is offered in the present paper. The laser has been assembled under the multicascade scheme with a single master oscillator. The powerful infra-red radiation on an output of such system has been frequency converted into green, dark blue and red radiation due to processes of the second harmonic and third harmonic generation of a neodymium laser radiation and generation of first anti-Stokes component of the Stimulated Raman scattering respectively and has been divided into three various beams of different colour. Varying the conditions of realisation of above processes, it is possible to redistribute the radiation energy of the system between beams of various colours over a wide range. The energy of each beam will be sufficient for exposition of a photomaterial of the appropriate spectral sensitivity, and the joint influence of beams will make possible to obtain colour pulse holograms and in particular, colour holographic portraits.