Catastrophic failure of the back facet in watt-level power long wavelength infrared quantum cascade laser

Quantum cascade lasers (QCLs) suffer from catastrophic failure caused by serious self-heating, thus limiting their output power and working stability. In this study, we observed a distinctive failure morphology on the back facet of watt-level power QCL emitting at λ ∼ 7.7 µ m. The failure was caused...

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Veröffentlicht in:	Journal of physics. D, Applied physics Applied physics, 2022-09, Vol.55 (36), p.365102
Hauptverfasser:	Yin, Ran, Zhang, Jin-Chuan, Guo, Qiang-Qiang, Zhuo, Ning, Zhai, Shen-Qiang, Jia, Zhi-wei, Liu, Jun-Qi, Wang, Li-Jun, Liu, Shu-Man, Lu, Quan-Yong, Liu, Feng-Qi, Wang, Zhan-Guo
Format:	Artikel
Sprache:	eng
Schlagworte:	3D thermal model catastrophic failure analysis quantum cascade laser strain relaxation model
Online-Zugang:	Volltext
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