Suppression of modulation instability in broad-area semiconductor lasers by injection of external optical radiation

Elizaveta A. Yarunova; Anton A. Krents; Nonna E. Molevich

doi:10.1117/12.2588685

4 May 2021 Suppression of modulation instability in broad-area semiconductor lasers by injection of external optical radiation

Elizaveta A. Yarunova, Anton A. Krents, Nonna E. Molevich

Author Affiliations +

Proceedings Volume 11846, Saratov Fall Meeting 2020: Laser Physics, Photonic Technologies, and Molecular Modeling; 1184608 (2021) https://doi.org/10.1117/12.2588685
Event: Saratov Fall Meeting 2020, 2020, Saratov, Russian Federation

Abstract

The work investigates the space-time dynamics of semiconductor broad-area lasers with injection of external optical radiation and taking into account the broadening factor of the laser spectral line (alpha factor). It is shown that a nonzero alpha factor leads to modulation transverse instability, which leads to filamentation of laser radiation. It is shown that the injection of external optical radiation suppresses modulation instability and makes it possible to achieve stable spatially uniform paraxial lasing.

Citation Download Citation

Elizaveta A. Yarunova, Anton A. Krents, and Nonna E. Molevich "Suppression of modulation instability in broad-area semiconductor lasers by injection of external optical radiation", Proc. SPIE 11846, Saratov Fall Meeting 2020: Laser Physics, Photonic Technologies, and Molecular Modeling, 1184608 (4 May 2021); https://doi.org/10.1117/12.2588685

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