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3
Transmitting Ar laser light through the fiber
WARNING
Never look directly at the fiber tip. Always monitor laser emissions by aiming the tip down
onto a sheet of paper.
Figure 5.4-97
Figure 5.4-98
Adjustment screw on the H fiber side
Adjustment screw on the V fiber side
Figure 5.4-99
5.
Again, adjust the screws, "H" and "V," at the optical fiber side of the optical fiber coupling device
to maximize the laser intensity.
6.
Repeat Step 4 and Step 5 to maximize the laser light intensity where the optical fiber connector is
fully tighten.
* If no light is emitted even after repeating these steps, repeat the procedure from step 1 in
Section 5.4.5, "Final Adjustment for the Ar Laser Light with the Optical Fiber."
Chapter 5 Laser Unit
5.4 LU4A Four-laser Module A
1.
Carefully align the end of the optical fiber (the end
without the tag) with the key groove in the coupling
and insert as far as it will go. Carefully tighten the
optical fiber connector. Gradually tighten it. And stop
when the laser light is emitted from the tip of the
optical fiber.
2.
If no laser light is emitted from the optical fiber even
though the operation of Step 1 is performed, do the
followings: Loosen the optical fiber connector about
10-degree angle. Pull the optical fiber carefully. And
check and see the laser light emission. (The laser
light will be defocused with this operation. A laser
light is emitted more easily if defocused.) If it is not
effective, repeat loosening the connector and pulling
the optical fiber a couple of times.
3.
When even a small amount of laser light is observed,
adjust two screws, "H" and "V," at the optical fiber
side of the optical fiber coupling device to maximize
the laser intensity.
4.
Tighten the optical fiber connector gradually, and
stop the rotation just before the laser light
disappears.
1-191
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