Modeling and experimental investigation of transverse mode dynamics in VECSEL

Alexandre Laurain; Jorg Hader; Jerome V. Moloney

doi:10.1117/12.2510281

4 March 2019 Modeling and experimental investigation of transverse mode dynamics in VECSEL

Alexandre Laurain, Jorg Hader, Jerome V. Moloney

Proceedings Volume 10901, Vertical External Cavity Surface Emitting Lasers (VECSELs) IX; 109010C (2019) https://doi.org/10.1117/12.2510281
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

We present a new method to simulate the formation of transverse modes in VECSELs. An expression for the gain as a function of carrier density and temperature is derived from a simulation of the structure reflectivity, while the field propagation in the cavity is computed with the Huygens-Fresnel integral. A rate equation model is employed to calculate the field and gain dynamics over numerous round-trips. The optimal mode size for single mode operation for a given pump shape is calculated and compared to experimental results. The effect of pump geometry, thermal lensing and structure design will be discussed.

Citation Download Citation

Alexandre Laurain, Jorg Hader, and Jerome V. Moloney "Modeling and experimental investigation of transverse mode dynamics in VECSEL", Proc. SPIE 10901, Vertical External Cavity Surface Emitting Lasers (VECSELs) IX, 109010C (4 March 2019); https://doi.org/10.1117/12.2510281

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