The role of temperature in quantum-cascade laser waveguides

被引：0
|
作者：
Craig A. Evans
Dragan Indjin
Zoran Ikonić
Paul Harrison
机构：
[1] University of Leeds,Institute of Microwaves and Photonics, School of Electronic and Electrical Engineering
来源：
Journal of Computational Electronics | 2012年 / 11卷
关键词：
Quantum-cascade lasers; Optical waveguides; Semiconductor waveguides;
D O I：
暂无
中图分类号：
学科分类号：
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.
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页码：137 / 143
页数：6
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