10.57647/j.spre.2025.0901.04

Quantum cascade laser modelling in the terahertz range and investigating the effect of temperature on its characteristics

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  • Vahed Servati Khajeh1,
  • Ali Naderi Saatlo*2,
  1. Department of Electrical-Electronics Engineering, Urmia Branch, Islamic Azad University, Urmia, Iran
  2. Microwave and Antenna Research Center, Urmia Branch, Islamic Azad University, Urmia, Iran

Received: 2025-01-01

Revised: 2025-01-27

Accepted: 2025-02-08

Published 2025-03-01

Copyright (c) 2025 Vahed Servati Khajeh, Ali Naderi Saatlo (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.

How to Cite

Servati Khajeh, V., & Naderi Saatlo, A. (2025). Quantum cascade laser modelling in the terahertz range and investigating the effect of temperature on its characteristics. Signal Processing and Renewable Energy (SPRE), 9(1 (March 2025). https://doi.org/10.57647/j.spre.2025.0901.04
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Abstract

Quantum cascade lasers (QCLs) provide the most intriguing design for quantum engineering and show how artificial materials with tailored properties can be produced through quantum design. Their inherent quantum nature conceptually affects their core concepts. QCLs actually exhibit intrinsic linewidths that approach the quantum limit, and are locked into their own states. Minimized metrology also works in the boundary frequency domains as far. In this paper, the effect of temperature on the characteristics of GaN/AlGaN and GaAs/AlGaAs quantum cascade lasers in the terahertz range is done based on rate equations. The temperature dependence of the phonon sputtering rate, changes in line width and lifetime of thermoion emission have been investigated, and also the effect of temperature on the photon lifetime in two materials, GaAs and GaN, has also been investigated and compared, and the effect of temperature on the output photon density, power and gain The unsaturated mode and its dependence on temperature show that GaN material can work at high temperatures.

Keywords

  • Quantum cascade laser,
  • Laser rate equation,
  • Laser temperature effect,
  • Photon lifetime
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