114 PI-MAX/PI-MAX2 System Manual Version 5.F
Figure 69. DG535 Fast Gating Experiment Block Diagram
In both setups, the WinSpec/32 software’s sequential gating function was used to
increment the delay to the PI-MAX gate in 50 ps steps. As a result, with respect to the
applied light pulses, the PI-MAX was gated 50 ps later with each repetition. The data
from each pulse was collected and displayed in a 3-D plot with time on the Z axis. By
sliding the coincidence time of the gate and applied light pulses in this manner, a plot was
produced that accurately characterized the temporal profile of the PI-MAX fast gate
function. The measurement results are shown below. FWHM on the gate was 1.6 ns and
the FW was measured at 2 ns.
Figure 70. Fast Gating Measurement Results