سال انتشار: ۱۳۹۰
محل انتشار: نوزدهمین کنفرانس مهندسی برق ایران
تعداد صفحات: ۴
Iman Taghavi – Photonics Research Laboratory, Electrical Engineering Department, Amirkabir University of Technology
Hassan Kaatuzian –
We report a numerical method based on both experimental data and physical model to simulate quantum-well dislocation effect inside the base region of a transistor laser of 150μm cavity length. Utilizing a special calculation method, base recombination lifetime is simulated for different quantumwell locations. In order to investigate optical bandwidth dependence on quantum well location coupled carrier photon equations are analyzed. Simulation shows significant enhancement in optical bandwidth (up to ~51GHz) due to moving the quantum well toward collector while current gain decreases. Also reported in this work is an optimum place for quantum-well to locate in the base region in order to maximize the bandwidth.