Dynamical simulations of single-mode lasing in large-area all-semiconductor PCSELs
M. Radziunas1, H. Wenzel2, B. King2, P. Crump2, and E. Kuhn1
Published in:
Opt. Lett., vol. 50, no. 6, pp. 1953-1956 (2025).
Abstract:
We perform modeling and dynamic simulations of all-semiconductor photonic crystal surface-emitting lasers (PCSELs). A two-dimensional photonic crystal consists of a GaAs layer with InGaP features, repeating periodically in both lateral directions. In our dynamic simulations, we demonstrate that photonic crystals with large isosceles triangular features, having a base angle close to 71.5°, enable suppression of higher-order modes and achieve single-mode lasing in large-area all-semiconductor PCSELs under moderate and high pump levels.
1 Weierstrass Institute for Applied Analysis and Stochastics (WIAS), Mohrenstrasse 39, Berlin 10117, Germany
2 Ferdinand-Braun-Institut (FBH), Gustav-Kirchhoff-Str. 4, Berlin 12489, Germany
Topics:
Bragg reflectors, Effective refractive index, Gallium arsenide, Laser crystals, Photonic crystals, Refractive index
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