The role of temperature in quantum-cascade laser waveguides

被引：10
作者：
Evans, Craig A. [1 ]
Indjin, Dragan [1 ]
Ikonic, Zoran [1 ]
Harrison, Paul [1 ]
机构：
[1] Univ Leeds, Inst Microwaves & Photon, Sch Elect & Elect Engn, Leeds LS2 9JT, W Yorkshire, England
来源：
JOURNAL OF COMPUTATIONAL ELECTRONICS | 2012年 / 11卷 / 01期
关键词：
Quantum-cascade lasers; Optical waveguides; Semiconductor waveguides; CARRIER DYNAMICS; GAAS/ALGAAS; GAIN; PERFORMANCE; SIMULATION; DENSITY; DESIGN; MODEL; FIELD;
D O I：
10.1007/s10825-012-0398-7
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The role of temperature on the properties of quantum-cascade laser (QCL) waveguides is investigated. One-dimensional waveguide parameters are obtained using a transfer-matrix technique and the complex dielectric constants of the waveguide layers are calculated using a semi-classical Drude-Lorentz model. To model the effect of temperature on the waveguide parameters, a temperature dependent electron mobility is incorporated within the Drude-Lorentz framework. It is shown that by including the effect of temperature, a significant improvement in the agreement with experiment of the waveguide loss and hence the laser threshold current density can be achieved.
引用
收藏
页码：137 / 143
页数：7
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