A QCL model with integrated thermal and stark rollover mechanisms

Author

Agnew, Gary ; Grier, Andrew ; Taimre, Thomas ; Yah Leng Lim ; Ikonic, Zoran ; Dean, Paul ; Khanna, Suraj P. ; Lachab, Mohammad ; Valavanis, Alexander ; Cooper, Jonathan ; Harrison, Paul ; Linfield, Edmund H. ; Davies, A. Giles ; Indjin, Dragan ; Rakic, Al

Author_Institution

Sch. of Inf. Technol. & Electr. Eng., Univ. of Queensland, Brisbane, QLD, Australia

fYear

2014

fDate

14-17 Dec. 2014

Firstpage

48

Lastpage

51

Abstract

There is a need for a model that accurately describes dynamics of a bound-to-continuum terahertz quantum cascade laser over its full range of operating temperatures and bias conditions. In this paper we propose a compact model which, through the inclusion of thermal and Stark effects, accurately reproduces the light-current characteristics of an exemplar bound-to-continuum terahertz quantum cascade laser. Through this model, we investigate the dynamics of this laser with a view to applications in high-speed free space communications.

Keywords

Stark effect; microwave photonics; optical communication equipment; quantum cascade lasers; QCL model; bias conditions; bound-to-continuum terahertz quantum cascade laser dynamics; compact model; high-speed free space communications; integrated Stark rollover mechanism; integrated thermal rollover mechanism; light-current characteristics; Equations; Laser modes; Mathematical model; Quantum cascade lasers; Temperature distribution; Temperature measurement; Free space communication; Stark effect; quantum cascade laser; rate equation; thermal rollover;

fLanguage

English

Publisher

ieee

Conference_Titel

Optoelectronic and Microelectronic Materials & Devices (COMMAD), 2014 Conference on

Conference_Location

Perth, WA

Print_ISBN

978-1-4799-6867-1

Type

conf

DOI

10.1109/COMMAD.2014.7038649

Filename

7038649