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The properties of simultaneously recorded multiple hologram are studied. A new model to describe the behaviors of the hologram is proposed. From this model, an analytic formulas of diffraction efficienies are given. It is shown that the efficiencies can not reach at 100％ due to the coupling between diffraction orders through intermodulation gratings. And the comparisions are made for this model with the results by Kogelnik’s coupled wave theory for N=1 and those by L. Solymar’s model for neglecting the effect of intermodulation gratings respectively. It is shown that these results are in agreement to each other.
A new model to describe the behaviors of the hologram is studied. From this model, an analytic formulas of diffraction efficienies are given. It is shown that the efficiencies can not reach at 100% due to the coupling between diffraction orders through intermodulation gratings. And the comparisions are made for this model with the results by Kogelnik’s coupled wave theory for N = 1 and those by L. Solymar’s model for neglecting the effect of intermodulation gratings respectively. It is shown that these results are in agreement to each other.