Open AccessChaos synchronization and communication in closed-loop semiconductor lasers subject to common chaotic phase-modulated feedback
Author(s) -
Ning Jiang,
Anke Zhao,
Shiqin Liu,
Chenpeng Xue,
Kun Qiu
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.032404
Subject(s) - chaotic , synchronization of chaos , semiconductor laser theory , bandwidth (computing) , synchronization (alternating current) , robustness (evolution) , computer science , optical chaos , carrier recovery , control theory (sociology) , optical communication , phase synchronization , secure communication , physics , laser , optics , telecommunications , encryption , demodulation , channel (broadcasting) , biochemistry , chemistry , control (management) , artificial intelligence , gene , operating system
We propose and demonstrate a closed-loop chaos system composed of external-cavity semiconductor lasers subject to common chaotic phase-modulated optical feedback (CCPMOF). The efficient-bandwidth and time-delay signature (TDS) characteristics of the chaotic carrier, the properties of chaos synchronization, as well as the performance and security of chaos communication are systematically investigated. The numerical results demonstrate that wideband chaotic carrier with effective TDS suppression can be easily obtained, high-quality chaos synchronization with considerable mismatch robustness, frequency detuning tolerance, and phase fluctuation tolerance can be achieved in a wide operation range, and high-speed chaos communication is available. With respect to the conventional closed-loop systems, the bandwidth and complexity of chaotic carrier is greatly enhanced, and the performances of chaos synchronization and communication are obviously improved.