Hybrid electronic/optical synchronized chaos communication system

A hybrid electronic/optical system for synchronizing a chaotic receiver to a chaotic transmitter has been demonstrated. The chaotic signal is generated electronically and injected, in addition to a constant bias current, to a semiconductor laser to produce an optical carrier for transmission. The op...

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Bibliographic Details
Published in:Optics express 2009-04, Vol.17 (9), p.7556-7561
Main Authors: Toomey, J P, Kane, D M, Davidović, A, Huntington, E H
Format: Article
Language:English
Subjects:
Computer-Aided Design
Electronics - instrumentation
Equipment Design
Equipment Failure Analysis
Fiber Optic Technology - instrumentation
Nonlinear Dynamics
Optical Devices
Reproducibility of Results
Sensitivity and Specificity
Signal Processing, Computer-Assisted - instrumentation
Systems Integration
Telecommunications - instrumentation
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Summary:A hybrid electronic/optical system for synchronizing a chaotic receiver to a chaotic transmitter has been demonstrated. The chaotic signal is generated electronically and injected, in addition to a constant bias current, to a semiconductor laser to produce an optical carrier for transmission. The optical chaotic carrier is photodetected to regenerate an electronic signal for synchronization in a matched electronic receiver The system has been successfully used for the transmission and recovery of a chaos masked message that is added to the chaotic optical carrier. Past demonstrations of synchronized chaos based, secure communication systems have used either an electronic chaotic carrier or an optical chaotic carrier (such as the chaotic output of various nonlinear laser systems). This is the first electronic/optical hybrid system to be demonstrated. We call this generation of a chaotic optical carrier by electronic injection.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.17.007556