Figure 3
Shot-to-shot pulse energies of (a) upper and (b) lower branches for ∼1300 shots. The intensities measured with PDmirror are plotted as a function of that with BIMup and BIMlo in (a) and (b), respectively. (c) Correlation between shot-to-shot pulse energies Iup and Ilo for 100000 shots. Yellow points (26% of the total events) satisfy the condition of the normalized difference |Rd| = |2(Iup − Ilo)/(Iup + Ilo)| < 0.5 and Iup + Ilo > 0.35 µJ, while purple points (5.8% of the total events) show |Rd| < 0.1 and Iup + Ilo > 0.35 µJ. |