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Security Implications of Open- and Closed-Loop Receivers in All-Optical Chaos-Based Communications

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3 Author(s)
Soriano, M.C. ; IFISC (CSIC-UIB) Inst. de Fis. Interdisicplinar y Sist. Complejos, Campus Univ. Hies Balears, Palma ; Colet, P. ; Mirasso, C.R.

We numerically find that higher privacy and security in all-optical chaos-based communication systems can be achieved when the closed-loop scheme is used in the receiver architecture, instead of the more traditional open-loop scheme. Our results show that the extraction of the encoded message demands a larger amplitude of the message when the open-loop receiver is used than when the closed loop is implemented. A large amplitude of the encoded message compromises the performance and security of the system.

Published in:

Photonics Technology Letters, IEEE  (Volume:21 ,  Issue: 7 )