Mid-infrared hyperchaos of interband cascade lasers  

作　　者：Yu Deng Zhuo-Fei Fan Bin-Bin Zhao Xing-Guang Wang Shiyuan Zhao Jiagui Wu Frédéric Grillot Cheng Wang 

机构地区：[1]School of Information Science and Technology,ShanghaiTech University,Shanghai 201210,China [2]LTCI,Institut Polytechnique de Paris,Télécom Paris,19 place Marguerite Perey,91120 Palaiseau,France [3]School of Physical Science and Technology,Southwest University,Chongqing 400715,China [4]Center for High Technology Materials,University of New-Mexico,1313 Goddard St SE,Albuquerque,NM 87106,USA [5]Shanghai Engineering Research Center of Energy Efficient and Custom AI IC,ShanghaiTech University,Shanghai 201210,China

出　　处：《Light(Science & Applications)》2022年第1期69-78,共10页光（科学与应用)（英文版）

基　　金：Shanghai Natural Science Foundation(20ZR1436500);National Natural Science Foundation of China(61804095,61875168).

摘　　要：Chaos in nonlinear dynamical systems is featured with irregular appearance and with high sensitivity to initial conditions.Near-infrared light chaos based on semiconductor lasers has been extensively studied and has enabled various applications.Here,we report a fully-developed hyperchaos in the mid-infrared regime,which is produced from interband cascade lasers subject to the external optical feedback.Lyapunov spectrum analysis demonstrates that the chaos exhibits three positive Lyapunov exponents.Particularly,the chaotic signal covers a broad frequency range up to the GHz level,which is two to three orders of magnitude broader than existed mid-infrared chaos solutions.The interband cascade lasers produce either periodic oscillations or low-frequency fluctuations before bifurcating to hyperchaos.This hyperchaos source is valuable for developing long-reach secure optical communication links and remote chaotic Lidar systems,taking advantage of the high-transmission windows of the atmosphere in the mid-infrared regime.

关 键 词：CHAOS CHAOTIC HYPERCHAOS 

分 类 号：TN248[电子电信—物理电子学]