Broadband laser chaos generation using a quantum cascade laser with optical feedback

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...

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Bibliographic Details
Published in:Optics letters 2021-10, Vol.46 (19), p.5039-5042
Main Authors: Chen, Chaojie, Jia, Zhiwei, Lv, Yuxiang, Li, Pu, Xu, Bingjie, Wang, Yuncai
Format: Article
Language:English
Subjects:
Broadband
Lasers
Optical feedback
Quantum cascade lasers
Relaxation oscillations
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Summary: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.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.428549