Chaotic synchronization and modulation of nonlinear time-delayed feedback optical systems

We present a special chaos synchronization system based on coupled time-delayed feedback optical systems. As far as we know, this paper reports for the first time simulations of synchronization in such optical circuits. The unsolved problem of the channel in communication applications of chaos synchronization for electronic systems make the optical systems very attractive. The quasi-infinite bandwidth, very low attenuation and practically noiseless characteristic of single mode fiber, used as information transmission medium, are the three main advantages of our system. We show by simulations that synchronization is effective, use a chaos shift keying modulation/demodulation scheme for binary information transmission and present some estimation of the bit rate in a such system. >

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