Information Encoding and Decoding Using Unidirectionally Coupled Chaotic Semiconductor Lasers Subject to Filtered Optical Feedback

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 feed...

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Bibliographic Details
Published in:IEEE journal of quantum electronics Vol. 45; no. 8; pp. 972 - 978
Main Authors: Ruiz-Oliveras, F., Soriano, M.C., Colet, P., Mirasso, C.R.
Format: Journal Article
Language:English
Published: New York, NY IEEE 01.08.2009
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Chaos
Decoding
Dynamic tests
Dynamical systems
Dynamics
Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics
Encoding
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Information filtering
Information filters
Laser feedback
Lasers
Messages
Nonlinear optics
Optical coupling
Optical feedback
Optical filters
Optics
Optimization
Physics
Semiconductor lasers
Semiconductor lasers; laser diodes
synchronization
Chaos
dynamics
Semiconductor lasers
Optical feedback
Feedback
Optical chaos
Theoretical study
Encoding
Numerical method
Synchronization
Nonlinear optics
ISSN:0018-9197, 1558-1713
Online Access:Get full text
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Description
Summary: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.
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SourceType-Scholarly Journals-1
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ISSN:0018-9197
1558-1713
DOI:10.1109/JQE.2009.2016982