Drift-Diffusion Based Numerical Investigation of Two-Photon Absorption in Broad-Area High-Power Diode Lasers

D. Dolinina¹, E. Kuhn¹, and H. Wenzel¹

Published in:

vol. 62, no. 5, pp. 2000408, doi:10.1109/JQE.2026.3723324 (2026).

Abstract:

The effect of two-photon absorption in high-power diode lasers is investigated numerically. The numerical simulation is based on the solution of coupled drift–diffusion and waveguide equations describing a broad-area Fabry–Pérot laser diode. Such an approach allows us to distinguish the direct effect due to inter-band absorption from the indirect effect due to intra-band absorption caused by the generated electron-hole pairs. The influence of two-photon absorption on continuous wave and pulsed laser operation is considered. The phenomenon of a reversed current of minority carriers is demonstrated.

Keywords:

high-power, high power, High-power diode lasers, high-power diode laser, High power diode lasers, high power diode laser, diode, diode lasers, diode laser, diode-laser, Lasers, Laser, Numerical Simulation, Simulation, waveguide, laser diode, continuous wave

Copyright:

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