Title :
Information Encoding and Decoding Using Unidirectionally Coupled Chaotic Semiconductor Lasers Subject to Filtered Optical Feedback
Author :
Ruiz-Oliveras, Flavio ; Soriano, Miguel C. ; Colet, Pere ; Mirasso, Claudio R.
Author_Institution :
Centro de Investig. en Opt., Guanajuato, Mexico
Abstract :
We present a detailed numerical study of the dynamics of two unidirectionally coupled semiconductor lasers subject to filtered optical feedback. We show that this chaos-based communication scheme allows for an improvement in the decoding of encrypted messages in comparison with the conventional feedback scheme. We found that the performance of the system is optimal when the closed-loop configuration and similar filters are used in the emitter and receiver systems.
Keywords :
chaotic communication; cryptography; decoding; encoding; optical chaos; optical feedback; optical filters; optical receivers; semiconductor lasers; synchronisation; chaos-based communication scheme; closed-loop configuration; emitter system; encrypted message; filtered optical feedback; information decoding; information encoding; receiver system; semiconductor laser; synchronization; unidirectional coupled chaos; Chaos; Decoding; Encoding; Information filtering; Information filters; Laser feedback; Optical coupling; Optical feedback; Optical filters; Semiconductor lasers; Chaos; dynamics; optical feedback; semiconductor lasers; synchronization;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2009.2016982
