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4
How to clean connectors
WARN IN G
36
Cleaning connectors is difficult as the core diameter of a
single-mode fiber is only about 9 μm. This generally means you
cannot see streaks or scratches on the surface. To be certain of
the condition of the surface of your connector and to check it
after cleaning, you need a microscope.
In the case of scratches, or of dust that has been burnt onto the
surface of the connector, you may have no option but to polish
the connector. This depends on the degree of dirtiness, or the
depth of the scratches. This is a difficult procedure and should
only be performed by a skilled person, and as a last resort as it
wears out your connector.
Never look into the end of an optical cable that is connected to an
active source.
To assess the projection of the emitted light beam you can use
an infrared sensor card. Hold the card approximately 5 cm from
the output of the connector. The invisible emitted light is
projected onto the card and becomes visible as a small circular
spot.
Preferred Procedure
Use the following procedure on most occasions.
Clean the connector by rubbing a new, dry cotton swab over
1
the surface using a small circular movement.
Blow away any remaining lint with compressed air.
2
Procedure for Stubborn Dirt
Use this procedure when there is greasy dirt on the connector:
Moisten a new cotton swab with isopropyl alcohol.
1
Clean the connector by rubbing the cotton swab over the
2
surface using a small circular movement.
Take a new, dry soft tissue and remove the alcohol, dissolved
3
sediment and dust, by rubbing gently over the surface using a
small circular movement.
Blow away any remaining lint with compressed air.
4
Agilent DFB Laser Source Module User's Guide
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