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7. If there is any cellophane tape on the optical fiber, remove it.
8. Insert the optical fiber tip into the feedthrough extension (FIGURE 5-24). Handle
the fragile optical fiber carefully; it should not be bent sharply or it may break.
Pull the cable through until the feedthrough seats against the
feedthrough extension.
9. Using a 2.5 mm hex driver, attach the feedthrough to the feedthrough extension
with four M3 screws.
10. Loosely wrap the fiber around the probe arm to take up any slack.
11. Insert the optical fiber tip into the opening in the probe mount (FIGURE 5-25).
12. Using a 2.5 mm hex driver, secure the tip by gently tightening the M3 screw
FIGURE 5-23
Left: Attaching the feedthrough extension to the probe arm base;
Right: The nut between the cable and the flange—SMA style shown
FIGURE 5-24
Insert the optical fiber tip into the
feedthrough extension
