Open AccessHybrid electronic/optical synchronized chaos communication system
Author(s) -
J. P. Toomey,
D. M. Kane,
Alioucha Davidovic,
Elanor H. Huntington
Publication year - 2009
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.007556
Subject(s) - synchronizing , chaotic , transmitter , optical communication , transmission (telecommunications) , optical chaos , computer science , signal (programming language) , synchronization (alternating current) , semiconductor laser theory , electronic engineering , optics , laser , telecommunications , physics , engineering , channel (broadcasting) , artificial intelligence , programming language
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.