The authors study the regime of self-pulsations in a two-state quantum dot laser with saturable absorber. Experiments demonstrate and theory explains the appearance of self-pulsations at low relaxation oscillation frequency. The system exhibits a period doubling sequence of bifurcations leading to chaos.
Viktorov, E. A., Cataluna, M. A., O'Faolain, L., Krauss, T. F., Sibbett, W., Rafailov, E. U., & Mandel, P. (2007). Dynamics of a two-state quantum dot laser with saturable absorber. Applied Physics Letters, 90(12), . https://doi.org/10.1063/1.2715023