Figure 3. Standard deviation of the intensity time series, σ, recorded using three different sampling rates, vs the laser pump current, normalized to the threshold value, I/I_th.

In panels (a–c), for each pump current and sampling rate, ten σ values are shown; in panel (d), the average σ value is plotted vs the normalized laser pump current, for the three sampling rates. In this panel the arrows indicate the current values where the behaviors discussed in the text occur.