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THORLABS Vytran FFS2000 Series User Manual

THORLABS Vytran FFS2000 Series
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FFS2000 Series Chapter 6: Fiber Preparation
Rev B, July 21, 2017 Page 41
the moving part of the FHB continues to move. If this occurs, clean the mating surfaces of the Cleave Block and
the FHB, and prepare new fibers. If this happens repeatedly refer to the maintenance section for further advice or
contact Thorlabs.
Press the Cleave Button to initiate the Cleave process, which will bring the Cleave Blade up towards the Fiber,
before starting a series of forward and backward arcs in a ‘pecking’ motion, slowly approaching the fiber to be
cleaved. As soon as the fiber is cleaved, the center block of the FHB will snap back to the right. Raise the Cleave
top (it is not necessary to wait for the Blade to return to Home), remove the FHB, and finally remove the cleaved
off piece of fiber from the V-groove to be disposed of safely.
Figure 41 Cleaving Procedure
Note: When the cleave lever is released, the center sliding portion of the FHB should remain in the forward
position and not slip backwards. Tension is reduced if the center sliding portion slips backwards prior to the fiber
being cleaved which might degrade the quality of the Cleave, and in some circumstances damage to the Cleave
Blade may occur.
6.4.3. Diagnostics
Problem Possible Cause Solution
Fiber does not cleave.
Contamination under the FHB,
under the fiber in the FHB insert,
or in cleave insert resulting in a
raised fiber line.
Scrub the bottom of the FHB, Cleave insert, or
FHB insert with the toothbrush supplied and
retry. This is the most common cause of
cleave failure.
Cleave blade positioned too far
back from the fiber.
It is possible that repositioning the cleave
blade may result in a situation where one or
both fibers may not cleave. Please contact
Thorlabs for assistance.
Blade rubs along the
fiber without cleaving.
FHB is slipping due to dirty FHB
V-grooves or top caps.
Clean the FHB V-grooves and top cap with
isopropanol or acetone and a cotton swab.
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.
!
!

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THORLABS Vytran FFS2000 Series Specifications

General IconGeneral
BrandTHORLABS
ModelVytran FFS2000 Series
CategoryLaboratory Equipment
LanguageEnglish

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