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4 October 2022 The experimental investigation of thermal properties of mid-IR quantum cascade lasers (Conference Presentation)
Dorota Pierscinska, Grzegorz Sobczak, Katarzyna Krajewska, Krzysztof Chmielewski, Aleksandr Kuzmicz, Piotr Gutowski
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Proceedings Volume PC12202, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XIX; PC1220208 (2022) https://doi.org/10.1117/12.2633775
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
Improving the heat dissipation in Quantum Cascade Lasers (QCLs) is important from the point of view of a growing number of their applications, which require better performance. In this paper, we propose and experimentally demonstrate the possibility of a significant reduction of Active Region (AR) temperature without sophisticated and fabrication-intensive means. We have examined the influence of electroplated gold thickness on thermal and electro-optical properties of InP-based QCLs. Numerical modeling, that we have performed, predicts a significant reduction of the laser core temperature of epi-side up mounted ridge waveguide QCLs with increased thickness of electroplated gold. Predictions of the numerical model have been confirmed experimentally by means of electro-optical, spectral, and thermal characterization.
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Dorota Pierscinska, Grzegorz Sobczak, Katarzyna Krajewska, Krzysztof Chmielewski, Aleksandr Kuzmicz, and Piotr Gutowski "The experimental investigation of thermal properties of mid-IR quantum cascade lasers (Conference Presentation)", Proc. SPIE PC12202, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XIX, PC1220208 (4 October 2022); https://doi.org/10.1117/12.2633775
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KEYWORDS
Quantum cascade lasers
Gold
Mid-IR
Electro optics
Cladding
Electro optical modeling
Heterojunctions
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