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Joint transform correlator optical encryption system: Extensions of the recorded encrypted signal and its inverse Fourier transform
(Elsevier Science, 2015-05)
In this work we study the joint transform correlator setup, finding two analytical expressions for the extensions of the joint power spectrum and its inverse Fourier transform. We found that an optimum efficiency is reached, ...
Experimental multiplexing protocol to encrypt messages of any length
(IOP Publishing, 2013-03)
As optical systems are diffraction limited, it is not possible to encrypt in a single step texts containing a large amount of characters. We overcome this situation by separately encrypting several characters, along with ...
All-optical encrypted movie
(2011)
Double-Lock Strategy Applied to Optical Spectral Phase and Delay Encoding
(Ieee, 2017-01-01)
Physical layer encryption (PLE) is a promising technology for increasing the security of communication networks. An important goal of PLE is to establish a mechanism that allows authorized users to understand cyphered ...
Double-lock strategy applied to optical spectral phase and delay encoding
(2017-11-27)
Physical layer encryption (PLE) is a promising technology for increasing the security of communication networks. An important goal of PLE is to establish a mechanism that allows authorized users to understand cyphered ...
Phase-only optical encryption based on the zeroth-order phase-contrast technique
(SPIE-SOC PHOTOPTICAL INSTRUMENTATION ENGINEERS, 2009)
A phase-only encryption/decryption scheme with the readout based on the zeroth-order phase-contrast technique (ZOPCT), without the use of a phase-changing plate on the Fourier plane of an optical system based on the 4f ...