Lasing of Quantum-Dot Micropillar Lasers under Elevated Temperatures

A comprehensive numerical modelling of microcavity parameters for micropillar lasers with optical pumping was presented. The structure with a hybrid dielectric-semiconductor top mirror has a significantly higher calculated quality-factor (~65000 for 5 \(\mu\)m pillar) due to better vertical mode con...

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Bibliographic Details
Published in:arXiv.org 2024-07
Main Authors: Babichev, Andrey, Makhov, Ivan, Kryzhanovskaya, Natalia, Blokhin, Alexey, Zadiranov, Yuriy, Salii, Yulia, Kulagina, Marina, Bobrov, Mikhail, Vasiliev, Alexey, Blokhin, Sergey, Maleev, Nikolay, Tchernycheva, Maria, Karachinsky, Leonid, Novikov, Innokenty, Egorov, Anton
Format: Article
Language:English
Subjects:
High temperature
Lasers
Lasing
Numerical models
Optical pumping
Quantum dots
Online Access:Get full text
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Summary:A comprehensive numerical modelling of microcavity parameters for micropillar lasers with optical pumping was presented. The structure with a hybrid dielectric-semiconductor top mirror has a significantly higher calculated quality-factor (~65000 for 5 \(\mu\)m pillar) due to better vertical mode confinement. The minimum laser threshold (~370 \(\mu\)W for 5 \(\mu\)m pillar) coincided with a temperature of 130 K, which is close to zero gain to cavity detuning. Lasing up to 220 K was demonstrated with a laser threshold of about 2.2 mW.
ISSN:2331-8422