FFS2000 Series Chapter 6: Fiber Preparation
Rev B, July 21, 2017 Page 37
Figure 39 Stripping Procedure
The coating should strip off with a light sliding force. In some cases there may be some debris still attached to the
Fiber, but so long as these come free during the clean operation this is not cause for concern. It is only important
that the fiber is completely clean when loaded to the Splice Position. If the remaining cladding adheres tightly to
the fiber, and this occurs repeatedly, then there may be a problem either with the blades themselves, or their
setup.
Some fibers have an inner as well as outer buffer coating. Some manufacturers make these two coatings of
different materials. For example, certain fibers have an inner coating comprised of a soft silicone material. These
fibers tend to strip evenly, although the resulting stripped coating pieces will not be in a tube form. If such a
silicone buffered fiber is stripped, the residue should be dissolved using an appropriate silicone solvent and
properly rinsed before cleaving the fiber. Thorlabs can suggest manufacturers of suitable silicone solvents that
may be appropriate.
Raise the top of the Cleave Block and remove the stripped coating and all particles from the V-groove and around
the Stripper Blades. Use the optional vacuum cleaning system or a soft toothbrush (provided), and place a free
hand around the rear of the Cleave Block when cleaning.
WARNING
Do NOT clean the V-groove insert with solvent when the vacuum is turned on. The solvent will be
drawn into the vacuum system and will cause internal damage. If the V-Groove appears to be
damaged, replace the inserts.
6.2.4. Diagnostics
Problem Possible Cause Solution
Vacuum won’t hold fiber
in FHB V-grooves.
FHB V-Grooves are dirty. Clean the FHB V-grooves with the soft brush
(provided).
Obstruction present under
dunking jig.
Make sure that the area underneath the dunking
jig is free of dirt particles. If necessary clean the
surface with a mild soap.
Bad or missing O-ring on
the underside of the
dunking jig.
Contact Thorlabs for a replacement part.
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