Laser Safety
2-3
Interlocks
Because the energy to drive the lasing process in the Tsunami comes from
another laser and not from an internal source (such as electrical discharge),
the interlock differs slightly from that of other lasers.
The Tsunami laser system has only one interlock: the shutter interlock on
the laser head. It blocks the pump beam at the entrance to the laser head
housing to prevent the Tsunami from lasing. When installed, the laser head
cover holds the shutter interlock open for normal operation. When the
cover is removed, the shutter closes automatically. Figure 2-3 shows the
Tsunami shutter interlock.
Figure 2-3: Laser Head Shutter Interlock
The alignment procedures in this manual require internal adjustments
while the laser is operating. The interlock can be defeated to allow this.
When the cover is removed and access to the pump beam is required, raise
the red shutter lever to defeat the interlock and hold the shutter open. In this
position, the red lever clearly shows the defeat and prevents cover installa-
tion until the shutter lever is lowered to the closed position.
Input Bezel
The interlock shutter is shown in the
cover off, defeated position with the
pump beam entering the laser.
Beam
Operating the laser with the cover off may expose people to high volt-
ages and high levels of radiation. It also increases the rate of optical sur-
face contamination. Therefore, operating the laser with the cover off is
not recommended.
Danger!
Laser Radiation
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