One step multiplexing optical encryption |
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| Authors: | John Fredy Barrera Roberto Torroba |
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| Affiliation: | a Grupo de Óptica y Fotónica, Instituto de Física Universidad de Antioquia, A.A 1226 Medell?´n, Colombia
b Centro de Investigaciones Ópticas (CONICET-CIC) and UID OPTIMO, Facultad de Ingenier?´a, Universidad Nacional de La Plata, P.O. Box 124, La Plata (1900), Argentina |
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| Abstract: | We present a combination of a free propagation scheme and a classical 4f encrypting architecture to design a technique to simultaneously encrypt multiple input objects. To our knowledge, this is the first reported technique for multiplexing encrypted data in one-step. Unlike existing multiplexing methods, encryption can be performed without setup modifications. A brief mathematical description and digital simulations support our proposal. |
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