New Wave Research Tempest - External Triggering; Figure 4-3: Timing Diagram for Internal Triggering

Tempest Nd:YAG Laser Operator’s Manual
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Figure 4-3: Timing Diagram for Internal Triggering
External triggering gives the user control over the timing of the laser
pulse. The user must supply TTL pulses to the flashlamp and Q-switch
trigger with the appropriate delay. The Flashlamp and Q-switch toggle
switches should both be down, in the EXT position. The delay between
the flashlamp and the Q-switch TTL fire pulses is important in getting
the best laser performance.
External
Triggering
Laser Pulse
Q-switch Synch OUT
~130 ns
~2 ms pulse
Q-switch Delay (~190 µsec)
Lamp Synch OUT
~2 ms pulse