Abstract
An analytical model of thermal and electrical characteristics of vertical cavity surface emitting lasers (VCSELs) and VCSEL arrays is presented. The model is based on analytical expressions for the thermal resistance and for the I-V curve of the devices and incorporates only a few macroscopic parameters. It accounts for three-dimensional current and heat flows and provides thermo-electrical self-consistency. Good agreement between the model’s predictions and the measured characteristics of InGaAs∕AlGaAs VCSEL arrays is obtained.
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