Evaluation of Thermal Resistance of Surface-emitting Quantum Cascade Laser using Structural Function and 3D Thermal Flow Simulation

Shigeyuki Takagi, Hirotaka Tanimura, Tsutomu Kakuno, Rei Hashimoto, Kei Kaneko, Shinji Saito

2021

Abstract

We analysed the thermal characteristics of a surface-emitting quantum cascade laser (QCL), which is expected to increase output and improve beam quality, on the basis of structural functions and 3D thermal flow simulation. The surface-emitting QCL has a device size of 3 mm x 3 mm and has a photonic crystal for extracting laser light vertically from the QCL. The structural function indicating the heat capacity and thermal resistance of the surface-emitting QCL was measured by the static method, and the total thermal resistance including the mount was about 4.7 K/W. On the other hand, the thermal resistance calculated from the 3D thermal flow simulation of the surface-emitting QCL was 4.55 K/W, showing the results of the two methods to be in good agreement. It was shown that the structural function and the 3D simulation are effective for the thermal analysis of surface-emitting QCLs.

Paper Citation

in Harvard Style

Takagi S., Tanimura H., Kakuno T., Hashimoto R., Kaneko K. and Saito S. (2021). Evaluation of Thermal Resistance of Surface-emitting Quantum Cascade Laser using Structural Function and 3D Thermal Flow Simulation.In Proceedings of the 9th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-758-492-3, pages 88-93. DOI: 10.5220/0010302700880093

in Bibtex Style

@conference{photoptics21,
author={Shigeyuki Takagi and Hirotaka Tanimura and Tsutomu Kakuno and Rei Hashimoto and Kei Kaneko and Shinji Saito},
title={Evaluation of Thermal Resistance of Surface-emitting Quantum Cascade Laser using Structural Function and 3D Thermal Flow Simulation},
booktitle={Proceedings of the 9th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},
year={2021},
pages={88-93},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010302700880093},
isbn={978-989-758-492-3},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 9th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - Evaluation of Thermal Resistance of Surface-emitting Quantum Cascade Laser using Structural Function and 3D Thermal Flow Simulation
SN - 978-989-758-492-3
AU - Takagi S.
AU - Tanimura H.
AU - Kakuno T.
AU - Hashimoto R.
AU - Kaneko K.
AU - Saito S.
PY - 2021
SP - 88
EP - 93
DO - 10.5220/0010302700880093