Non-equilibrium analysis of the two-color operation in semiconductor quantum-well lasers

The relevance of hole burning for stable two-color operation in semiconductor quantum-well lasers is studied using a non-equilibrium laser model on the basis of the semiconductor Maxwell-Bloch equations. The field propagation is described via a traveling-wave method. The polarization dynamics is computed using the semiconductor Bloch equations for the microscopic transition and occupation probabilities. Numerical examples for single- and dual-mode operation are presented for a microresonator model system.