Abstract
Nonlinear recording of superimposed holograms has been theoretically studied. In the case of holograms recorded by method of angular or phase multiplexing, nonlinearity of the recording process leads to the appearance of gratings of two types, both meeting Bragg’s condition in the course of reconstruction. The gratings of one type change the hologram diffraction efficiency, while those of the other give rise to diffractional cross-talk. The strength of gratings responsible for the cross-talk decreases until vanishing with increasing mutual orthogonality of the hologram object waves.
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