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7.1.5 Splicing Defects
Defects
Possible Cause
Action
Bubbling
Wrong fiber type
selected
Select the correct Fusion Program,
and repeat fusion splicing.
Faulty cleave
Repeat fiber preparation and fusion
splicing.
Dirty fiber end
Repeat fiber preparation and fusion
splicing.
Degradation of
electrodes
Replace the electrodes.
Bubbling
(MMF)
Depending on fiber
Increase “Pre_fuse_time” in the
Fusion Program (e.g. Increase by
50[msec] )
Not spliced
or
Neck-down
Wrong Fusion
Program selected
Select the correct Fusion Program,
and repeat fusion splicing.
Faulty cleave
Repeat fiber preparation and fusion
splicing.
Excessive arc current Perform an arc check, and adjust arc
power.
Insufficient fiber feed Adjust the fiber feed amount.
Degradation of
electrodes
Replace the electrodes.
Thickening
Wrong Fusion
Program selected
Select the correct Fusion Program,
and repeat fusion splicing.
Excessive fiber feed Adjust the fiber feed amount.
Degradation of
electrodes
Replace electrodes.
Excessive arc current Perform an arc check, and adjust arc
power.
Streak
Wrong Fusion
Program selected
Select the correct Fusion Program,
and repeat fusion splicing.
Degradation of
electrodes
Replace the electrodes.
Weak arc
Perform an arc check and adjust arc
power, or apply an additional arc.