LUMENIS VersaPulse PowerSuite - 3.2.4 Fiber Alignment

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5. Perform the Fiber alignment for all channels in Section 3.2.4.
If no laser energy is detected between the two folding mirrors, the mirror is probably not oriented
toward the correct brick. Go back and repeat step 3, then rotate the mirror 180• on the shaft in step 4.
3.2.4 Fiber Alignment
For each channel, two optics are adjusted to position the YAG beam down the intended optical path into the
center of the fiber; the first relay mirror and the second (plano) relay mirror.
The second relay mirror seldom needs to be adjusted. It provides a much wider range of movement of
the beam than the first relay mirror. The four second relay mirrors are all mounted on the cavity OC
wall. Although the second relay mirror mounts are shaped differently than the other channel mirror
mounts, the mounting and adjusting hardware is the same - each is held in place by a spring loaded
mounting screw and each has a horizontal and vertical adjusting screw with locking nut.
The first relay mirror is normally the only adjustment needed to get the YAG beam centered through
the wedge optics and centered into the fiber port.
a. Set the system to the following operating parameters.
Holmium: Lamp Volts 800V Ho/Nd:YAG: Lamp Volts 800V
Lamp energy 50J Lamp Current 50A
Repetition Rate 5 Hz Repetition Rate 5 Hz
b. Use the test aperture to check the YAG channel centering into the second wedge optic opening.
Examine the burn and proceed as follow
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NOTE:
•An acceptable burn is to be centered and clipping must not be seen. If the burn is
acceptable, go on to step "b" below.
•An unacceptable burn will be well off center (more than a fourth of the burn is
clipped). In this case, the second relay mirror must be adjusted to bring the YAG
beam closer to the center of the aperture as described below.