Probability Of Data Error In Holographic Storage In Electro-Optic Crystals

Evaluation of the probability of error in detecting the state of a binary bit in a data page reconstruction is reported. Experiments are described that determine the effect on the probability of error of rotating the reading beam about the Braga angle. This effect is examined for volume Fourier transform holograms in iron-doped lithium niobate. Results are presented for three different diffraction efficiencies, for the incoherent superposition of hologram pairs with three different angular separations and for Fourier transform holograms with three different displacements of the electro-optic crystal from the transform plane.