Chaos-based communications at high bit rates using commercial fibre-optic links

By A. Argyris, D. Syvridis, Laurent Larger, V. Annovazzi-Lodi, P. Colet, Ingo Fischer, Jordi García-Ojalvo, Claudio R. Mirasso, L. Pesquera, K. Shore. Nature, 2005

1,462 citations recorded by the source corpus.

Chaotic signals have been proposed as broadband information carriers with the potential of providing a high level of robustness and privacy in data transmission. Laboratory demonstrations of chaos-based optical communications have already shown the potential of this technology, but a field experiment using commercial optical networks has not been undertaken so far. Here we demonstrate high-speed long-distance communication based on chaos synchronization over a commercial fibre-optic channel. An optical carrier wave generated by a chaotic laser is used to encode a message for transmission over 120 km of optical fibre in the metropolitan area network of Athens, Greece. The message is decoded using an appropriate second laser which, by synchronizing with the chaotic carrier, allows for the separation of the carrier and the message. Transmission rates in the gigabit per second range are achieved, with corresponding bit-error rates below 10-7. The system uses matched pairs of semiconductor lasers as chaotic emitters and receivers, and off-the-shelf fibre-optic telecommunication components. Our results show that information can be transmitted at high bit rates using deterministic chaos in a manner that is robust to perturbations and channel disturbances unavoidable under real-world conditions.

Subfields: Artificial Intelligence, Computer Vision and Pattern Recognition, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/0a2947f76f7894c7659601033111c080780bf3af

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Citations in the corpus

Enhancing the Bandwidth of the Optical Chaotic Signal Generated by a Semiconductor Laser With Optical Feedback (2008, background): “PTICAL chaotic signals generated from lasers have been an attractive issue studied extensively for applications such as secure communications [ 1 ], [2], chaotic lidar/radar [3], [4], and coherence tomography [5].”
Fast physical random bit generation with chaotic semiconductor lasers (2008, neutral): “High-bandwidth chaotic lasers have previously been used to demonstrate the transmission of messages hidden in complex optical waveform”
Self-similarity in ultrafast nonlinear optics (2007, background): “Some significant studies have nonetheless been carried out, including research into the nonlinear dynamics of a range of lasers and optoelectronic device”
Time-Delay Identification in a Chaotic Semiconductor Laser With Optical Feedback: A Dynamical Point of View (2009, background): “decrypted by synchronization at the receiver end (a physical copy of the chaotic emitter) [3], [5]–[8].”
Complex photonics: Dynamics and applications of delay-coupled semiconductors lasers (2013, background): “After about ten years of research (Uchida et al., 2005), a field experiment in the metropolitan area network of Athens demonstrated chaos-based optical encryption in a standard network infrastructure (Argyris et al., 2005).”
High-Speed Photonic Reservoir Computing Using a Time-Delay-Based Architecture: Million Words per Second Classification (2017, background): “…photonic systems intended for signal or information processing have already been studied during the last two decades — however, for totally different applications such as ultrahigh spectral purity microwave generation [15] or physical layer optical encryption using broadband chaotic waveforms [16].”