Low-Threshold RNGH Instabilities in Quantum Cascade Lasers

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dc.contributor.authorVuković, Nikola N.
dc.contributor.authorRadovanović, Jelena
dc.contributor.authorMilanović, Vitomir
dc.contributor.authorBoiko, Dmitri L.
dc.date.accessioned2022-02-14T17:08:07Z
dc.date.available2022-02-14T17:08:07Z
dc.date.issued2017-11
dc.description.abstractWe show that low-threshold Risken-Nummedal-Graham-Haken (RNGH) instabilities in quantum cascade lasers (QCLs) occur due to a combined effect of the carrier coherence and population grating induced in the gain medium. QCLs with a few mm long cavity exhibit intermittent RNGH self-pulsations while regular self-pulsations are possible in short-cavity QCLs, with the cavity length of 100 ?m or smaller. Transient behavior to RNGH self-pulsations in short-cavity QCLs shows features resembling cooperative superradiance which opens a practical way of achieving ultrashort pulse production regimes in the mid-infrared spectral range.
dc.identifier.citationIEEE Journal of Selected Topics in Quantum Electronics, vol. 23 (6), pp. 1-16
dc.identifier.doi10.1109/JSTQE.2017.2699139
dc.identifier.issn1558-4542
dc.identifier.urihttps://hdl.handle.net/20.500.12839/891
dc.titleLow-Threshold RNGH Instabilities in Quantum Cascade Lasers
dc.typeJournal Article
dc.type.csemdivisionsBU-I
dc.type.csemresearchareasPhotonics
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