Title :
Chaotic synchronization and modulation of nonlinear time-delayed feedback optical systems
Author_Institution :
Dept. of Electr. Eng., Swiss Federal Inst. of Technol., Lausanne, Switzerland
fDate :
8/1/1995 12:00:00 AM
Abstract :
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
Keywords :
digital communication; optical chaos; optical fibre communication; optical modulation; synchronisation; telecommunication channels; attenuation; binary information transmission; bit rate; chaos shift keying modulation/demodulation; chaos synchronization system; communication channels; information transmission medium; noiseless characteristic; nonlinear time-delayed feedback optical systems; quasi-infinite bandwidth; single mode fiber; Chaos; Chaotic communication; Circuit simulation; Coupling circuits; Fiber nonlinear optics; Nonlinear optics; Optical attenuators; Optical coupling; Optical feedback; Optical modulation;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on