Optimization of self-consistent approach for quantum cascade laser using shooting method and particle swarm optimization

LETTER

China Academy of Engineering Physics">Yuankun Sun, Peng Feng, Haijun Zhou, Weiling Chen, Xin Li, Liang Gong, Biao Wei, Chen Peng

Author information

Yuankun Sun
Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education, Chongqing University
China Academy of Engineering Physics
Peng Feng
Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education, Chongqing University
Haijun Zhou
Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education, Chongqing University
Weiling Chen
Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital, Army Medical University
Xin Li
Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital, Army Medical University
Liang Gong
Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital, Army Medical University
Biao Wei
Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education, Chongqing University
Chen Peng
China Academy of Engineering Physics

Keywords: quantum cascade laser, shooting method, infrared, electron temperature

JOURNAL FREE ACCESS

2020 Volume 17 Issue 1 Pages 20190651

DOI https://doi.org/10.1587/elex.16.20190651

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Details

Abstract

We present a numerical optimization approach to simulate the output characteristics of a mid-infrared quantum cascade laser, taking into account the effect of subband electron temperature (T_ei). The shooting method is used to simplify the calculation. The results give accurate subband electron temperatures when the external electric field is above the threshold. The results of the calculations are consistent with experimental results, thereby confirming that consideration of the subband electron temperature can improve our understanding of quantum cascade lasers and help guide future experimental work.

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