Optical correlators are efficient optical systems that have gained a wide range of
applications both in image recognition and encryption, due to their special properties that …

The joint transform correlator (JTC) cryptosystem is a simple and practical optical
cryptosystem. However, the anti-attack capability of JTC cryptosystem is still needed to be …

In allusion to the privacy and security problems, a secure multi-channel information
protection scheme based on an integrated optical device is proposed in this paper. The …

In this contribution, we introduce a new practical approach to apply the fractional Fourier
transform (FrFT) in the modeling of two optical systems: free space propagation (FSP) and a …

Communication has become an integral part of all beings—both the living and non-living. In
most cases, everyone likes to keep their communication personal and secure. Additionally …

Optical encryption methods attract a lot of attention owing to their high encryption speed and
bandwidth. Recently neural networks (NN) have been used for cryptanalysis of optical …

Polarization encryption has long been shown to allow simultaneous encryption of 2D
images, but with scarce practical implementations or commercial applications to date …

En esta contribución se discuten los avances más significativos en el campo de la
encriptación de información mediante procesamiento óptico con énfasis en los adelantos en …

The accessibility and prevalence of modern communications can often obscure the
complexity and sophistication of the underlying network that enables it. A constantly …