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Opt Lett. 2012 Jul 15;37(14):2895-7. doi: 10.1364/OL.37.002895.

Multiplexing of encrypted data using fractal masks.

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  • 1Grupo de Óptica y Fotónica, Instituto de Física, Universidad de Antioquia, A.A 1226 Medellín, Colombia.


In this Letter, we present to the best of our knowledge a new all-optical technique for multiple-image encryption and multiplexing, based on fractal encrypting masks. The optical architecture is a joint transform correlator. The multiplexed encrypted data are stored in a photorefractive crystal. The fractal parameters of the key can be easily tuned to lead to a multiplexing operation without cross talk effects. Experimental results that support the potential of the method are presented.

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