Tandem blue-violet quantum well InGaN lasers with high-frequency self-pulsations

Theoretical investigations have been carried out to study the dynamics of tandem blue–violet lasers. The theoretical results show that self-pulsating operations are possible if one of the regions is adjusted with an external electric circuit. Self-pulsation with high frequencies has been observed in the numerical calculations. We found that features of the external circuit strongly affect the self-pulsation. The effect of device and material parameters on the laser dynamics was also investigated.