The space-bandwidth product in the join ttransform correlator optical encryption setup
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http://dx.doi.org/10.1016/j.optcom.2011.05.012 |
Metadatos
Título
The space-bandwidth product in the join ttransform correlator optical encryption setupFecha de publicación
2011Editor
ElsevierISSN
0030-4018Cita bibliográfica
Optics Communications (Sept. 2011) vol. 284, no. 19, p. 4316-4320Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S0030401811004895Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
In this work we study the joint transform correlator (JTC) optical encryption setup through the Wigner function. We found analytical expressions for the spatial and spatial frequency extent of the encrypted signal. ... [+]
In this work we study the joint transform correlator (JTC) optical encryption setup through the Wigner function. We found analytical expressions for the spatial and spatial frequency extent of the encrypted signal. Since the JTC is inherently an asymmetrical optical system, different expressions were found for each spatial axis and for their associated spatial frequency axes. We also compare these results with the dual random phase encoding technique. Finally, we found an analytical expression for the minimum separation between channels that avoids crosstalk in a wavelength multiplexing JTC architecture. [-]
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