Analysis of the Thermal Properties of GaInAs Quantum Cascade Lasers

  • Omar Concepción Faculty of Physics, Havana University, 10400 Havana, Cuba
  • Arturo Abelenda Faculty of Physics, Havana University, 10400 Havana, Cuba.
  • J. C. González Dpto. de Física, Universidade Federal de Minas Gerais, Brasil.
  • María Sánchez-Colina Faculty of Physics, Havana University, 10400 Havana, Cuba.

Abstract

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.

Published
Jul 15, 2015
How to Cite
CONCEPCIÓN, Omar et al. Analysis of the Thermal Properties of GaInAs Quantum Cascade Lasers. Revista Cubana de Física, [S.l.], v. 32, n. 1, p. 15-19, july 2015. ISSN 2224-7939. Available at: <http://revistacubanadefisica.org/index.php/rcf/article/view/RCF_32-01_15_2015>. Date accessed: 26 apr. 2024.
Citation Formats
Issue
Vol 32 No 1 (2015)
Section
Original Articles

This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.