1 August 2008 Wavelength-division multiplexing Fresnel transform encoding of time-varying signals
Author Affiliations +
Optical Engineering, 47(8), 085004 (2008). doi:10.1117/1.2968216
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.
Christian Cuadrado-Labordee, Ricardo Duchowicz, Enrique E. Sicre, "Wavelength-division multiplexing Fresnel transform encoding of time-varying signals," Optical Engineering 47(8), 085004 (1 August 2008). http://dx.doi.org/10.1117/1.2968216

Wavelength division multiplexing

Computer programming

Fiber optics

Signal processing

Phase modulation

Wigner distribution functions

Interference (communication)

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