Spectra-Physics Tsunami - Alignment Procedures for Tsunami Laser

6-1
Chapter 6 Alignment
This chapter contains several alignment procedures for the Tsunami
®
laser.
Most have been categorized into two sections, one for fs alignment and one
for ps. A Spectra-Physics service representative will perform the initial
cavity alignment and cleaning when he installs your new laser. Thereafter,
there should be little need to do a full alignment. Allow only qualified per-
sonnel to align your laser. The “Cavity Alignment” section below is pro-
vided in the event a gross misalignment has occurred and your system is
out of warranty.
The sections that cover conversions between overlapping and non-overlap-
ping optics sets describe how to change from one set to another and how to
perform a minimum realignment in order to use the new optics. Also
included are sections that describe how to convert your system between ps
and fs configurations.
With the exception of pump mirror P
1
and the GTI (ps configuration only),
all mirrors are captured and held in place by a screw-in holder. Unscrew the
holder and the mirror will come out with it. The optic is retained by a
Teflon o-ring and is removed by simply grabbing the exposed barrel of the
optic and pulling it straight out of the holder. Do not press on the optical
surface when reinstalling the optic to its holder—always hold it by the bar-
rel. The v-shaped arrow on the barrel points to the coated, intracavity sur-
face. When screwing the holder back in, finger tight is sufficient—
excessive force will damage the optic.
If you need to verify the location of the optic in the laser, refer to the tables
located at the end of Chapter 10, “Options and Accessories.”
Teflon is a registered trademark of the DuPont corporation.
Caution!
In order to protect the optical components from contaminants, always
wear clean, power-free finger cots when handling them.
If your laser meets specified power, do not perform this procedure. This
section is provided in the event a gross misalignment has occurred. Only
personnel authorized and trained by Spectra-Physics should attempt it.
Caution!