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Appendix E. Cleaning Procedure
Cleaning Procedures
Cleaning Bare Fiber Ends
Bare fiber ends are often used for splices or, together with other
optical components, to create a parallel beam. The end of a fiber
can often be scratched. You make a new cleave. To do this:
1 Strip off the cladding.
2 Take a new soft-tissue and moisten it with isopropyl alcohol.
3 Carefully clean the bare fiber with this tissue.
4 Make your cleave and immediately insert the fiber into your bare
fiber adapter in order to protect the surface from dirt.
Cleaning Lenses
Some lenses have special coatings that are sensitive to solvents,
grease, liquid and mechanical abrasion. Take extra care when
cleaning lenses with these coatings.
Lens assemblies consisting of several lenses are not normally
sealed. Therefore, use as little alcohol as possible, as it can get
between the lenses and in doing so can change the properties of
projection.
Preferred Procedure
1 Clean the lens by rubbing a new, dry cotton-swab over the
surface using a small circular movement.
2 Blow away any remaining lint with compressed air.
Procedure for Stubborn Dirt
Use this procedure particularly when there is greasy dirt on the
lens:
1 Moisten a new cotton-swab with isopropyl alcohol.
2 Clean the lens by rubbing the cotton-swab over the surface using
a small circular movement.
3 Using a new, dry cotton-swab remove the alcohol, any dissolved
sediment and dust.
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