Effect of non-uniform distribution of electric field on diffused quantum well lasers

The influence of non-uniform distribution of electric field on the steady state and dynamic behavior of diffused quantum well lasers is studied by a self-consistent model. The energy band structure of the quantum well can be distorted significantly by the non-uniform distribution of electric field, especially for devices with diffused quantum well structure. Hence, the evaluation on the optical gain as well as the modulation responses of diffused quantum well lasers using flat band approximation can be deviated significantly with nonuniform distribution of electric field taken into consideration.