Maintenance
9-11
Figure 9-4: AOM, Output Coupler M
10
, and Beam Splitter
7. Remove the screws (4) holding the input and output cover plates in
place and remove the cover plates to expose the crystal.
8. Clean the two sides of the crystal using a folded tissue and hemostat as
described in Step 3 of “General Procedure for Cleaning Optics.”
9. When finished cleaning, reverse Steps 2 through 7 to install the
AOM
in the laser.
10. Open the pump laser shutter and adjust M
1
and M
10
vertically and hori-
zontally for maximum output power. Do not adjust the slide.
11. Verify the beam is still centered on M
10
. If it is not centered, iterate
adjustments of M
5
and M
10
until it is.
12. Verify the beam is still centered on the AOM.
If realignment of the
AOM is required, refer to Chapter 6, “Alignment:
Aligning the
A/O modulator (AOM).”
Output Coupler (M
10
)
Positioning Controls
Horz. Vert.
Beam
Splitter
Output
Coupler (M
10
)
AOM Pitch Control
AOM Aperture Window
AOM Mounting Setscrews (2)
AOM Horizontal
Angle Control
AOM
The small wires attached to the crystal can be easily broken. Exercise
care when handling them.
Warning!
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