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Optical Engineering

Wavelength-division multiplexing Fresnel transform encoding of time-varying signals
Author(s): Christian Cuadrado-Labordee; Ricardo Duchowicz; Enrique E. Sicre
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Paper Abstract

We study the wavelength-division multiplexing implementation of the recently proposed temporal Fresnel transform encoding technique, in order to evaluate its potential application for secure data transmission in short-haul fiber optic links. The different signal broadenings produced by each stage of the encoding process are analyzed in a dual time-frequency domain by using the Wigner distribution function. Furthermore, the robustness of the proposed method is illustrated by comparing the signal-to-noise ratio between the input and the decrypted signals obtained by varying typical parameters of the encryption-decryption setup. Numerical simulations revealed good system performance. Finally, we consider experimental feasibility with current photonic technology.

Paper Details

Date Published: 1 August 2008
PDF: 9 pages
Opt. Eng. 47(8) 085004 doi: 10.1117/1.2968216
Published in: Optical Engineering Volume 47, Issue 8
Show Author Affiliations
Christian Cuadrado-Labordee, Ctr. de Investigaciones en Óptica, A.C. (Argentina)
Ricardo Duchowicz, Ctr. de Investigaciones en Óptica, A.C. (Argentina)
Enrique E. Sicre, Univ. Argentina de la Empresa (Argentina)

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