DESIGN TRADE-OFFS AND EVALUATION OF THE PERFORMANCE ATTAINABLE BY GAAS-AL0.3GA0.7AS ASYMMETRIC FABRY-PEROT MODULATORS

We use a semi empirical theoretical model to evaluate the performance ultimately attainable by normally-on asymmetric Fabry-Perot modulators (AFPM's) that incorporate GaAs-Al0.3Ga0.7As multiple quantum wells (M QW). Various optimization criteria are employed and the calculations a ddress issues that involve both the micro-resonator design and the qua ntum-well region, Thus we evaluate the minimum required barrier width in order to compare between different well widths, and examine the fin al AFPM performance in many respects, considering not only the modulat ion itself but also the tolerances and the speed of the device, Finall y, we proceed to the design of example devices where some characterist ics have been specifically optimized.