CRIPTOSISTEMA ÓPTICO: UNA IMPLEMENTACIÓN UTILIZANDO HOLOGRAFÍA FOTORREFRACTIVA Y UN MODULADOR LCR2500

Jorge Enrique Rueda Parada, Ana Ludia Romero

Resumen


En este trabajo se presentan los resultados de la implementación de un procesador de encriptación-descencriptación óptica en tiempo real, utilizando difracción en propagación libre como mecanismo de operaciones de correlación y convolución, y el uso de un modulador de cristal líquido (LCR2500) y un cristal fotorrefractivo (Bi12SiO20).
Utilizamos las ventajas de la mezcla de cuatro ondas en el cristal fotorrefractivo, por un lado, para almacenar holográficamente la información encriptada, y de otra parte se aprovecha la conjugación de fase para descencriptar la información en paralelo al proceso de encriptación.

Texto completo:

108-112

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DOI: https://doi.org/10.24054/16927257.v19.n19.2012.159

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