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

页码：137 / 143

页数：7

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