The analytical approach to the multi-state lasing phenomenon in undoped and p-doped InAs/InGaAs semiconductor quantum dot lasers

Vladimir V. Korenev; Artem V. Savelyev; Alexey E. Zhukov; Alexander V. Omelchenko; Mikhail V. Maximov

doi:10.1117/12.2051998

2 May 2014 The analytical approach to the multi-state lasing phenomenon in undoped and p-doped InAs/InGaAs semiconductor quantum dot lasers

Vladimir V. Korenev, Artem V. Savelyev, Alexey E. Zhukov, Alexander V. Omelchenko, Mikhail V. Maximov

Author Affiliations +

Proceedings Volume 9134, Semiconductor Lasers and Laser Dynamics VI; 913406 (2014) https://doi.org/10.1117/12.2051998
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

Abstract

We introduce an analytical approach to the multi-state lasing phenomenon in p-doped and undoped InAs/InGaAs quantum dot lasers which were studied both theoretically and experimentally. It is shown that the asymmetry in charge carrier distribution in quantum dots as well as hole-to-electron capture rate ratio jointly determine laser’s behavior in such a regime. If the ratio is lower than a certain critical value, the complete quenching of ground-state lasing takes place at sufficiently high injection currents; at higher values of the ratio, our model predicts saturation of the ground-state power. It was experimentally shown that the modulation p-doping of laser’s active region results in increase of output power emitted via the ground-state optical transitions of quantum dots and in enhancement of the injection currents range in which multi-state lasing takes place. The maximum temperature at which multi-state lasing exists was increased by about 50°C in the p-doped samples. These effects are qualitatively explained in the terms of the proposed model.

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Vladimir V. Korenev, Artem V. Savelyev, Alexey E. Zhukov, Alexander V. Omelchenko, and Mikhail V. Maximov "The analytical approach to the multi-state lasing phenomenon in undoped and p-doped InAs/InGaAs semiconductor quantum dot lasers", Proc. SPIE 9134, Semiconductor Lasers and Laser Dynamics VI, 913406 (2 May 2014); https://doi.org/10.1117/12.2051998

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