Chen Chaojie, Jia Zhiwei, Lv Yuxiang, Li Pu, Xu Bingjie, Wang Yuncai
Opt Lett. 2021 Oct 1;46(19):5039-5042. doi: 10.1364/OL.428549.
We propose a method to generate broadband laser chaos using a quantum cascade laser (QCL). Through numerical simulation, we give the evidence that the QCL with optical feedback can route to chaos through the quasi-periodic path. Furthermore, we investigate the influence of the feedback intensity and the bias current on the chaos bandwidth. Final results demonstrate that the chaos bandwidth can headily reach 43.1 GHz due to the lack of relaxation oscillation phenomena in QCLs.
我们提出了一种使用量子级联激光器（QCL）产生宽带激光混沌的方法。通过数值模拟，我们给出了具有光反馈的QCL可以通过准周期路径通向混沌的证据。此外，我们研究了反馈强度和偏置电流对混沌带宽的影响。最终结果表明，由于QCL中不存在弛豫振荡现象，混沌带宽可以急剧达到43.1GHz。
