Dynamical regimes in a monolithic passively mode-locked quantum dot laser
- Vladimirov, Andrei G.
- Bandelow, Uwe
- Fiol, Gerrit
- Arsenijević, Dejan
- Kleinert, Moritz
- Bimberg, Dieter
- Pimenov, Alexander
- Rachinskii, Dmitrii
2010 Mathematics Subject Classification
- 78A60 65P30
2008 Physics and Astronomy Classification Scheme
- 42.60.Fc, 042.55.Px, 42.65.S
- Mode-locking, quantum dot lasers, bifurcations
Operation regimes of a two section monolithic quantum dot (QD) mode-locked laser are studied experimentally and theoretically, using a model that takes into account carrier exchange between QD ground state and 2D reservoir of a QD-in-a-well structure, and experimentally. It is shown analytically and numerically that, when the absorber section is long enough, the laser exhibits bistability between laser off state and different mode-locking regimes. The Q-switching instability leading to slow modulation of the mode-locked pulse peak intensity is completely eliminated in this case. When, on the contrary, the absorber length is rather short, in addition to usual Q-switched mode-locking, pure Q-switching regimes are predicted theoretically and observed experimentally.
- J. Opt. Soc. Amer. B Opt. Phys., 27 (2010) pp. 2102-2109.