title: Hybrid electronic/optical synchronized chaos communication system.
abstract: 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.
authors.affiliation: Physics Department, Macquarie University, Sydney, NSW 2109, Australia.
authors.forename: J P
authors.initials: JP
authors.lastname: Toomey
authors.forename: D M
authors.initials: DM
authors.lastname: Kane
authors.forename: A
authors.initials: A
authors.lastname: Davidović
authors.forename: E H
authors.initials: EH
authors.lastname: Huntington
mesh_terms: D017076:Computer-Aided Design; D004581:Electronics / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D017711:Nonlinear Dynamics; D055096:Optical Devices; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D018511:Systems Integration; D013685:Telecommunications / Q000295:instrumentation*