THORLABS Vytran FFS2001 Series User Manual page 87

FFS2001 Series
End View Toggle Mirror (Item #s FFS2001PM and FFS2001WS)
If the fiber image is distorted or pieces of dirt are visible on the toggle mirror surface under 10-20X magnification,
the mirror surfaces should be cleaned. This can be done using a commercial lens cleaner with a no-lint cotton
swab.
To clean the 90° mirror, raise the splice top and flip the 90° end view mirror down. Wipe it with the cotton swab
and lens cleaner using a single-direction stroke.
Since it is harder to view, the 135° mirror must be cleaned with the aid of the image. Close the splice top to display
the image from the 135° on the computer screen. Raise the splice top and wipe the 135° mirror with a single
stroke. Close the top and reexamine the mirror surface in the image. Continue in this manner until the mirror is
sufficiently clean.
Figure 67
10.4.2 Check/Clean Graphite V-Grooves
The splice station uses graphite vacuum V-grooves to precisely hold the fiber for alignment and splicing. Any small
amount of dirt or debris that collects at the bottom of the V-groove could cause alignment and/or strength issues.
A special long-hair, anti-static brush cam be used specifically for cleaning the graphite V-grooves. Gently brush out
any dirt or debris that is apparent in the V-grooves. If necessary, the V-grooves can be blown clean using clean dry
(canned) air.
Note: The graphite material is very soft to ensure that it will not scratch the glass fiber. It can easily be damaged
or scratched. Never use any metal or hard materials to clean the graphite V-grooves. Even the "soft" blue handled
brush has sufficiently hard bristles to damage the graphite. Use only canned air or a "long-hair" anti-static brush.
10.4.3 Replace Filament
1. Raise the splice top.
2. Loosen the 2-56 setscrews on the filament extraction tool using a 0.035" hex key.
Rev. A, August 14, 2024
Figure 66 Cleaning the Mirror (Item #s FFS2001 and FFS2001PT)
Cleaning the Toggle Mirror (Item #s FFS2001PM and FFS2001 WS)
Chapter 10: Maintenance
Page 81