110 Keysight N777-C Series Tunable Laser Family User’s Guide
6 Maintenance
Do not use any other solvents, as some may damage plastic materials and
claddings. Acetone, for example, will dissolve the epoxy used with fiber
optic connectors. To avoid damage, only use isopropyl alcohol.
If you use isopropyl alcohol to clean your optical device, do not
immediately dry the surface with compressed air. This is because the dust
and the dirt is solved and will leave behind filmy deposits after the alcohol
is evaporated. You should therefore first remove the alcohol and the dust
with a soft tissue, and then use compressed air to blow away any
remaining filaments.
Cotton swabs
We recommend that you use cotton swabs available from local distributors
of medical and hygiene products.
Ensure that you use natural cotton swabs. Foam swabs will often leave
behind filmy deposits after cleaning.
Use care when cleaning, and avoid pressing too hard onto your optical
device with the swab. Too much pressure may scratch the surface, and
could cause your device to become misaligned. It is advisable to rub gently
over the surface using only a small circular movement.
Swabs should be used straight out of the packet, and never used twice.
This is because dust and dirt in the atmosphere, or from a first cleaning,
may collect on your swab and scratch the surface of your optical device.
Soft tissues
These are available from most stores and distributors of medical and
hygiene products.
We recommend that you do not use normal cotton tissues, but
multi-layered soft tissues made from non-recycled cellulose. Cellulose
tissues are very absorbent and softer. Consequently, they will not scratch
the surface of your device over time.
Use care when cleaning, and avoid pressing on your optical device with
the tissue. Pressing too hard may lead to scratches on the surface or
misalignment of your device. Just rub gently over the surface using a small
circular movement.
Use only clean, fresh soft tissues and never apply them twice. Any dust
and dirt from the air which collects on your tissue, or which has gathered
after initial cleaning, may scratch and pollute your optical device.
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