Modelling of temperature effects on the characteristics of mid-infrared quantum cascade lasers

被引：34
|
作者：
Hamadou, A. [1 ]
Thobel, J. -L. [2 ]
Lamari, S. [3 ]
机构：
[1] Univ Abdelhamid Ibn Badis Mostaganem, Dept Genie Mecan, Fac Sci & Sci Ingn, Mostaganem 27000, Algeria
[2] Univ Sci & Tech Lille, IEMN, UMR 8520, F-59652 Villeneuve Dascq, France
[3] Univ Ferhat Abbas Setif, Dept Phys, Fac Sci, Cite Mabouda 19000, Algeria
来源：
OPTICS COMMUNICATIONS | 2008年 / 281卷 / 21期
关键词：
Quantum cascade laser; Temperature dependence; Thermionic emission; Unsaturated modal gain; Threshold current density; Output power;
D O I：
10.1016/j.optcom.2008.07.036
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The effect of temperature on the characteristics of GaAs/AlGaAs quantum cascade lasers operating in the mid-infrared range is theoretically investigated and compared with reported experimental results. We have included the dependence of the phonon scattering rate linewidth variations and thermionic lifetime, on temperature. It is found that the characteristics depend strongly on temperature. Our model yields threshold current densities in good agreement with the experiments. The effect of injection efficiency on the unsaturated modal gain is also considered. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：5385 / 5388
页数：4
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