Sampled grating terahertz quantum cascade lasers

We demonstrate a metal-stripe sampled Bragg grating distributed feedback terahertz quantum cascade laser for power scaling up along with reliable single-mode emission. The major advantage is that the effective coupling coefficient can be flexibly engineered by tuning the sampling duty cycle. With sa...

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Veröffentlicht in:	Applied physics letters 2019-04, Vol.114 (14)
Hauptverfasser:	Zhao, Fang-yuan, Li, Yuan-yuan, Liu, Jun-qi, Liu, Feng-qi, Zhang, Jin-chuan, zhai, Shen-qiang, Zhuo, Ning, Wang, Li-jun, Liu, Shu-man, Wang, Zhan-guo
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied physics Coupling coefficients Gaussian beams (optics) Laser beams Normal distribution Quantum cascade lasers
Online-Zugang:	Volltext
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