Quantel Ultra Big Sky Laser Series User Manual page 33

Internal flashlamp
fire signal
Flashlamp current
Rod fluorescence
Q-Switch trigger
pulse
Laser output pulse
Figure 16 Automatic Mode Timing for Flashlamp and Q-Switch Signals
Timing of Signals in Automatic Mode
Timing diagram showing flashlamp and Q-Switch trigger signals generated by
the ICE450 in Automatic mode and their resultant laser waveforms.
Note: The diagram is for illustration only. The time and amplitudes are not to scale.
|
Ultra
~ 100 – 120µs
~ 120 – 150µs
Adjustable to
500 µsec
~ 70ns
~ 5ns (FWHM)
Divide By N (Auto-Ratio) Feature:
Q-Switch to fire once for every specified number of flashlamp pulses.
To use Divide By N (Auto-ratio):
• From the Q-Switch menu, use the Auto Mode menu to increase the
Auto-ratio value to a number greater than one.
The Auto-ratio value is the number of flashlamp pulses to the number of
active Q-Switch pulses. An example is shown in the timing diagram below,
where the Auto-ratio value is set to three:
Flashlamp
Q-Switch
Figure 17 Divide By N (Auto Ratio) Q-Switch Mode Timing (value set to 3)
Operation | Contents
This Q-Switch mode causes the
...repeats
Version M 22-April-2012
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