Abstract

It has been shown recently that not only compressive strained but also tensile strained¹ quantum-well lasers improved the laser performance. The improvement by tensile strain was not predicted by the original theory.² It was pointed out³ that the enhanced TM polarization matrix element is important to explain the improved performance of tensile strained quantum-well lasers and the inclusion of spin-orbit split-off band is important in the modelling of strained "bulk-like" semiconductor lasers. The optical dipole moments are fundamentally important for any interband absorption and gain processes. The quantum sized effects on the physic of tensile strained quantum-well lasers are less understood.

© 1994 Optical Society of America