A scheme of an optical switch using a matrix of reprogrammable holograms is discussed. The light from each input channel is deflected to an output channel with a separate microhologram. The microholograms are recorded and overrecorded with two acousto-optical deflectors on a bacteriorhodospin photo medium. The experiments have been carried out on a prototype with 20 $MUL 20 channels. As shown, the capacity of such a switch can be increased up to 10$+4$/ $MUL 10$+4$/.
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