Run 11005002: laser, laser_nofire
Run 11005005: laser

In all panels, x = time interval between event N and event N+k, measured in RHIC ticks.
First row is k=1, i.e., intervals between two consecutive events. Second row is k=2 and third row is k=3.

Within the row, right panel is a zoom of the left panel.

Conclusions

11005005
Standalone laser trigger always fires twice per 0.1s period, and the two triggers are separated by 510 ticks (sometimes 511).

11005002
With laser and laser_nofire triggers, the timing is more fuzzy. There is still a 510 tick afterpulse, but there are also longer separations. The fact that events N and N+3 are sometimes close in time proves that there are 4-pulse bursts in the data. These plots do not prove that events always come in such bursts. However, 5-pulse bursts never happen.