2-Dimensional Self-Consistent Modeling Of Inp/Gainasp Lateral Current Injection-Lasers

Lateral Current Injection (LCI) lasers have the potential to overcome many of the limitations inherent to conventional Vertical injection structures, but until now there has been very little theoretical analysis and optimization of LCI laser designs. 2D self-consistent simulations of these devices have been carried out for the first time. Calculated characteristics are in good agreement with experimental results and offer explanations for the observed roll-off in differential quantum efficiency. In addition, we have explored other key design issues unique to LCI lasers such as the consequences of the non-uniform gain profile, ways to minimize this non-uniformity, and the effects limiting the maximum small-signal modulation frequency.