Lasing in compact injection microdisks with InAs/InGaAs quantum dots

N. V. Kryzhanovskaya, E. I. Moiseev, M. M. Kulagina, Y. Guseva, Yu M. Zadiranov, M. V. Maximov, A. A. Lipovskii, B. I. Afinogenov, A. G. Nasibulin, A. E. Zhukov

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    We present results of characterization of injection microdisk and microring lasers with InAs/InGaAs self-organized quantum dots grown on a GaAs substrate. The microresonator diameters are within 9-31 μm. The microlasers operate without external cooling in continuous wave regime at room temperature and up to 100°C. In case of ring resonator geometry, a reduction of threshold current in comparison with the disk resonator is observed, that is due probably to reduction of current waste in the center of the resonator where field of whispering gallery lasing modes is negligible. This also indicates that the effects of non-radiative surface recombination and carrier diffusion are insignificant for QD-based microlasers.

    Original languageEnglish
    Title of host publicationProceedings - International Conference Laser Optics 2018, ICLO 2018
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Number of pages1
    ISBN (Print)9781538636121
    DOIs
    Publication statusPublished - 13 Aug 2018
    Event2018 International Conference Laser Optics, ICLO 2018 - St. Petersburg, Russian Federation
    Duration: 4 Jun 20188 Jun 2018

    Publication series

    NameProceedings - International Conference Laser Optics 2018, ICLO 2018

    Conference

    Conference2018 International Conference Laser Optics, ICLO 2018
    Country/TerritoryRussian Federation
    CitySt. Petersburg
    Period4/06/188/06/18

    Keywords

    • Lasers
    • Microdisks
    • Nanophotonics
    • Quantum dots

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