THE INFLUENCE OF COULOMB ENHANCEMENT ON THE MODULATION PROPERTIES OF QUANTUM-WELL LASERS

The phenomenon of Coulomb enhancement, resulting from the consideratio n of many-body effects, is included in a detailed calculation of the g ain of a quantum-well (QW) laser, which is then used to predict the la ser's modulation response. Carrier transport in the separate-confineme nt heterostructure is taken into account. The modulation response is c ompared to experimental data and to predictions from calculations usin g only the free-carrier gain. The comparison shows that the inclusion of Coulomb enhancement in the theoretical calculations leads to better agreement between simulated and experimental data.