Wavelength multiplexing encryption using joint transform correlator architecture.
We show that multiple secure data recording under a wavelength multiplexing technique is possible in a joint transform correlator (JTC) arrangement. We evaluate both the performance of the decrypting procedure and the influence of the input image size when decrypting with a wavelength different from that employed in the encryption step. This analysis reveals that the wavelength is a valid parameter to conduct image multiplexing encoding with the JTC architecture. In addition, we study the influence of the minimum wavelength change that prevents decoding cross talk. Computer simulations confirm the performance of the proposed technique.
Centro de Investigaciones Opticas (CONICET-CIC) and UID OPTIMO, Facultad Ingeniería, Universidad Nacional de La Plata, P.O. Box 124, La Plata 1900, Argentina.
Dafne
D
Amaya
Myrian
M
Tebaldi
Roberto
R
Torroba
Néstor
N
Bolognini