Fig. 4
From: Ultrafast switch-on dynamics of frequency-tuneable semiconductor lasers

Distribution of power among lasing modes as a function of cavity round-trips. The power of three modes (2.795, 2.825 and 2.855 THz) normalised to represent percentage of total emitted power: a calculated from experimental data and b simulated using the reduced rate equation model. In each case, only the three dominant modes are shown for clarity