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We report some new results in parallel image transmission via 2-meter multimode fiber (core diameter 70 μm, N.A. 0.17), using polarization preserving phase conjugation in the photorefractive crystal LiNbO3 Fe.

Possibility of holographic correction of the aberration caused by the acoustooptic modulation was demonstated using photorefractive crystals as holographic recording media. Correction was realised using simple two-wave mixing scheme which allow to wash out aberrations but save useful information which may be carried by acoustical wave.