CIOP 05384
CENTRO DE INVESTIGACIONES OPTICAS
Unidad Ejecutora - UE
artículos
Título:
Time-variant signal encryption by lensless dual random phase encoding applied to fiber optics links
Autor/es:
CUADRADO LABORDE, CHRISTIAN
Revista:
OPTICS LETTERS
Editorial:
OSA-Optical Society of America
Referencias:
Lugar: New York; Año: 2007 vol. 32 p. 2867 - 2869
ISSN:
0146-9592
Resumen:
A lensless dual random phase encoding technique in the temporal domain is proposed and analyzed to evaluate its potential application for secure data transmission, mainly for short-haul fiber optic links. The different signal broadening effects produced by each stage of the encoding process in both time and frequency domains are analyzed by using the Wigner distribution function to take into account the fibers multiplexing capabilities. Thus, quasi-white noise with a well-defined bandwidth is used in the encoding process to limit the bandwidth of the encrypted signal. Numerical simulations revealed good system performance, indicating that this multiplexing encryption method could be a good alternative to other well-established techniques.
