Microscopic nonequilibrium dynamics of gain coupled mode-locked dual VECSEL cavities

Simon P. Tsaoussis; Jerome V. Moloney

doi:10.1117/12.3000661

12 March 2024 Microscopic nonequilibrium dynamics of gain coupled mode-locked dual VECSEL cavities

Proceedings Volume 12868, Vertical External Cavity Surface Emitting Lasers (VECSELs) XIII; 1286805 (2024) https://doi.org/10.1117/12.3000661
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

Mode-locked shared gain coupled VECSEL cavities exhibit novel lasing properties with dual cavities supporting independently running mode-locked fs pulse trains. Using an extended Maxwell – Semiconductor Bloch microscopic model, we show that initial simulations support experimentally observed independent mode-locking at separated wavelengths with little evidence for gain competition. Our extended SBE model expands the microscopic carrier populations and polarizations in a nonparaxial grating basis to capture large angle incident beams on the gain chip. Preliminary simulations support uncoupled mode-locking showing pulses simultaneously incident on the gain chip and we identify a novel independent mechanism for the wavelength selectivity.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Simon P. Tsaoussis and Jerome V. Moloney "Microscopic nonequilibrium dynamics of gain coupled mode-locked dual VECSEL cavities", Proc. SPIE 12868, Vertical External Cavity Surface Emitting Lasers (VECSELs) XIII, 1286805 (12 March 2024); https://doi.org/10.1117/12.3000661

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