7-1
Chapter 7 Operation
System Start-up
Once the Tsunami laser has been installed and aligned, we suggest you
leave the Model 3955 and optional Model 3930 electronics modules pow-
ered on at all times. By doing so, the day-to-day operation remains consis-
tent and repeatable, and only minor adjustments and purging are required
to return the Tsunami laser to optimum performance levels (provided noth-
ing is disturbed between operating sessions).
1. If not already on, turn on the Model 3955 (or Model 3930) electronics
module and leave it on at all times.
Leaving it on overnight vastly reduces the warm-up time the next time
the system is used. We urge you to leave the unit on at all times, except
when moving the system or when you will not use it for an extended
period of time.
It takes about 20 minutes for the acousto-optic modulator (
AOM) and
GTI (ps configuration) to reach operating temperature. If your system
includes the optional Lok-to-Clock
®
system, refer to Chapter 8, “Lok-
to-Clock: Operation,” for start-up information for the Model 3930. In
the meantime, continue with system start-up.
2. Verify the pump laser shutter is closed, then turn on the pump laser and
set it for its anticipated power level.
If using an ion laser, allow it to warm up according to its instruction
manual. Continue with start-up while these systems are warming up.
3. Verify the Tsunami optics are clean.
If the cover was left in place and the system was purged the last time it
was used, it is safe to assume the optics are still clean. If you are not
The Tsunami
®
and its pump laser are Class IV—High Power Lasers,
whose beams are, by definition, safety and fire hazards. Take precau-
tions to prevent exposure to direct and reflected beams. Diffuse as well
as specular reflections cause severe skin or eye damage.
Danger!
Because the Tsunami laser emits continuous wave (CW) and pulsed
infrared radiation, it is extremely dangerous to the eye. Infrared radia-
tion passes easily through the cornea, which focuses it on the retina,
where it can cause instantaneous permanent damage.
Danger!
Laser Radiation
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