Threshold optimization of pulse operating quantum cascade vertical cavity emitting lasers (QC VCSELs)

Mikolaj Janczak; Robert P. Sarzala; Maciej Dems; Andrzej Kolek; Maciej Bugajski; Wlodzimierz Nakwaski; Tomasz Czyszanowski

doi:10.1117/12.2651158

17 March 2023 Threshold optimization of pulse operating quantum cascade vertical cavity emitting lasers (QC VCSELs)

Mikolaj Janczak, Robert P. Sarzala, Maciej Dems, Andrzej Kolek, Maciej Bugajski, Wlodzimierz Nakwaski, Tomasz Czyszanowski

Author Affiliations +

Proceedings Volume PC12439, Vertical-Cavity Surface-Emitting Lasers XXVII; PC1243909 (2023) https://doi.org/10.1117/12.2651158
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

The key component of a quantum cascade vertical cavity surface emitting laser (QC VCSEL) is a monolithic high-contrast grating (MHCG) that replaces one of the distributed Bragg mirrors (DBR). The grating induces the polarization component necessary to stimulated emission in quantum cascade active regions embedded in MHCG. The complex electrical and optical phenomena defining the performance of the structure depends on the grating parameters (stripes dimensions, position, thickness and doping concentrations). This work presents optimization of QC VCSELs that is aimed to achieve minimal thresholds currents in the pulse operation regime.

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Citation Download Citation

Mikolaj Janczak, Robert P. Sarzala, Maciej Dems, Andrzej Kolek, Maciej Bugajski, Wlodzimierz Nakwaski, and Tomasz Czyszanowski "Threshold optimization of pulse operating quantum cascade vertical cavity emitting lasers (QC VCSELs)", Proc. SPIE PC12439, Vertical-Cavity Surface-Emitting Lasers XXVII, PC1243909 (17 March 2023); https://doi.org/10.1117/12.2651158

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