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Fusion splicing is used
when a permanent, stable joint is required.
In fusion splicing, the fibres are accurately aligned
in a machine called a fusion splicer, and then a precisely
controlled high voltage electric arc is used to melt and
fuse the two fibres together.
This produces a homogenous joint as the boundary between
the two fibres is removed with very little light lost
at the joint.
Typically, losses with a fusion splicer are between 0.02dB
and 0.15dB.
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