LIE HomeIssue Contents

Investigation of the Static and Dynamic Characteristics of a Vertical Cavity Surface-emitting Laser (VCSEL) Based on a Simplified Numerical Thermal Model
J. Zhang, Y. Teng, J-W. Han, G-J. Gao and Y-L. Zhao

A simplified numerical thermal model of a vertical cavity surface emitting laser (VCSEL) is introduced. Through this model, several key features under direct current (DC) and alternating current (AC) conditions, including thermally dependent threshold current, output roll-over for different ambient temperature, T-I curves, V-I curves, and normalized modulation response for the small-signal condition, are predicted mathematically. Simulation results show that our model is reasonable to reflect the practical characteristics of VCSEL and operate more simply than circuit model.

Keywords: Vertical cavity surface emitting laser (VCSEL), numerical thermal model, standard laser rate equations, steady-state response, transient response, modulation response

Full Text (IP)