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Our Products
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SMC - 20 Fibre Workshop |
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Basic Concept
Besides other technologies to fix
an optical fibre to a connector, the hot melt technique is
commonly used. The ferrule, as well as the connector body, is
filled with hot melt cement. After heating up the connector, the
prepared fibre is introduced and after cooling down, the
connection is done. In subsequent steps, the over-standing fibre
is removed and the connector polished. In a last step, the
result is checked with the fibre inspection mircoscope. All
required tools for this procedures are provided within this
workshop, enabling the professional termination and repair of
optical glass fibres. |
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| Step-1 Strip fibre | |
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At the beginning the protective
cover of the fibre is removed using Miller’s pliers. The lengths
of the remaining plastic covers depend on the cable type. In
case of bare fibres, only one protective coating needs to be
removed. After preparing the fibre in this way, the plastic
jacket, as well as the bending protection, sleeve is attached to
the fibre in such a way that they are fixed later on to the
connector body. Finally the bare fibre end is cleaned. |
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| Step-2 Prepare connector | |
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The connector comes in a plastic
bag with a separate connector body, plastic jacket and bending
protection sleeve for bare fibres. The connector body, as well
as the ferrule is filled, with hot melting cement and will now
be attached to the provided holder and put into the upheated
oven. After approx. 60 seconds, the connector is ready for the
next step. |
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| Step-3 Insert fibre into hot connector | |
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The bare fibre end is inserted into
the hot connector in such a way that approx. 10 to 20 mm of the
fibre stands out with respect to the ferrule. Before the next
step can start, the connector with the fibre is placed into a
stand to cool down. |
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| Step-4 Scratch and break over standing fibre | |
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After the cooling down of the hot
melt connector, the out standing fibre is scratched with the
diamond tipped tool and broken in such a way that a residual of
approx. 0.2 mm remains. This step already determines the later
quality of the result. In some examples, it needs to evaluated
how to scratch and how to break. |
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| Step-5 Polish connector | |
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The connector containing the fibre
is placed into the arm of the polishing machine. A drop of
isopropyl alcohol is applied to the spot where the connector
touches the disk. After 30 to 60 seconds, polishing the fibre is
ready. Remaining polishing particles must be removed. |
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| Step-6 Inspect connector | |
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The last step of the process is the
inspection of the polishing process by means of the inspection
mircoscope. The cleaned connector end face is inserted into the
receptacle. If a clear picture appears the connection is ready
for use. |
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