Lateral Current Injection lasers and the Integrated Split-Electrode Laser Modulator

grantor: University of TorontoLateral Current Injection (LCI) lasers and the Integrated Split-Electrode Laser Modulators (SELM) are fabricated in the GaAs/AlxGa1-x As/In0.1Ga0.9As material system. The effect of lateral leakage current on the threshold current of LCI devices is studied in detail. The simulation results based on a simple, but informative modeling of temperature dependence of threshold current are compared against experimental results to further advance the understanding of internal operation mechanism of LCI devices. The SELM is successfully fabricated and its concept proven. Modulation and output extinction measurements show the SELM is working in the way that it is intended. Consideration of the rate equations reveals the potentially superior modulation characteristics of the SELM, which awaits to be proven experimentally.M.A.Sc