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Dynamic holograms and optical limiting: unsteady amplification of weak waves and extremely high exhaustion of intensive beams

Dynamic holography gives the possibility of laser beams controlling and provides methods for changing both direction and phase of them. Using methods of dynamic holography it is possible to change direction of light beam thus taking it away from device being secured. The key problems in this case is achievement of high levels of energy transform from initially highly intensive waves to finally weak wave or waves, since the level of energy transformation is the parameter which determines the effectiveness of the limiter. Using the asymmetric geometry of beam interaction one can provide highly-effective unidirectional energy transform between weak and strong beams thus forming the theoretical basis for building of new type of highly effective optical limiters based on asymmetric two-beam unsteady interaction in dynamic holograms.