ANALYSIS OF THE THERMAL PROPERTIES OF GaInAs QUANTUM CASCADE LASERS

被引：0
|
作者：
Concepcion, O. [1 ]
Abelenda, A. [1 ]
Gonzalez, J. C. [2 ]
Sanchez, M. [1 ]
机构：
[1] Univ La Habana, Fac Fis, Havana, Cuba
[2] Univ Fed Minas Gerais, Dpto Fis, Belo Horizonte, MG, Brazil
来源：
REVISTA CUBANA DE FISICA | 2015年 / 32卷 / 01期
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D O I：
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A study of the temperature distribution of GaInAs/AlInAs quantum cascade lasers (QCLs) is presented. The heat conduction equation was solved using a finite-element method and a two-dimensional anisotropic heat-flow model. The thermal resistance (Rth) was calculated and compared with experimental results reported by other authors obtaining a good agreement. Comparison of heat dissipation in a double channel (DC) and buried heterostructure (BH) was performed analyzing the influence of the ridge height. The effect of materials used as: heat-sink, capping and insulation layer were evaluated. The results show that a DC-QCL with a deep-ridge waveguide, using: InP as top capping layer, Si3N4 as insulation layer, and graphene as heat-sink presents a better performance than a BH-QCL.
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页码：15 / 19
页数：5
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