Fiber Cleaning
Cleaning/Inspecting Optical Connectors
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B - 9
Lucent Technologies - Proprietary
See notice on first page
365-372-327 R2.0
Issue 1, October 2003
Connector Inspection
After cleaning the connector, inspect the ferrule endface to ensure that
it is free from any particulate contamination using an optical fiber
inspection scope of at least 200X magnification. When using an optical
fiber scope (for example, the Noyes OFS 300-200X) exercise extreme
caution to assure fiber being examined is de-energized.
WARNING
When using an optical power meter to verify the connector and
fiber to be clean, take special precaution to make sure that no
power is being emitted from the fiber before viewing.
Step 1
Follow the instructions in the manual provided with the Optical Fiber
Scope to view the ferrule endface of the fiber under inspection.
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Step 2
The visual area of the ferrule endface (ferrule and fiber) as observed by
the inspection system/scope should be free of any contaminates. See
Figure B-3, Acceptability Criteria for Fiber Cleaning (page B-10)
Repeat the Cleaning Procedure if the fiber endface does not meet the
following requirements:
Requirement:
No fixed type of contamination (contaminates that
remain at the same location after 3 wet-dry cleaning cycles),
regardless of size, is allowed in the restricted area of the glass fiber
endface.
Requirement:
The restricted area is defined as ~66 microns (µm)
diameter for both singlemode and multimode fibers.
Requirement:
No chips, cracks or scratches are allowed near the
core of the glass fiber endface.
Requirement:
No large floating (loose) contaminates are allowed
on the glass fiber and ceramic ferrule endface.