Tsunami - Beckman Institute Laser Resource Center

Alignment
M5 fs Position M5 ps Position Input Bezel
\ \ \
Output Bezel M4 ps Position M4 fs Position
Figure 6-8: Locations of M4 and M5 for fs and ps operation.
b. Adjust M4 vertically and horizontally to center the reflected
images from Mg and Mj onto Ms.
If you have a ps-only system without prisms, skip to step f. If you are
converting your Tsunami from a fs to a ps laser, or vice versa, refer to
the section "Converting Between fs and ps Configurations" later in
this chapter and perform the appropriate procedure, then return here.
c. Close the shutter.
d. Remove the slit assembly.
WARNING
Support the slit assembly with your hand when loosening the setscrew
to prevent it from falling off the shaft and damaging the optics below.
Loosen the setscrew holding the slit assembly to the spindle of
the control micrometer, then slide the slit down and off the micrometer
shaft (Figure 6-9).
e. Open the shutter.
f. Place a white card in front of the input to the A10 modulator
(AOM).