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15
SECTION E
Standard Polishing Process for Single-mode and
Multimode Connectors
4. PREPARE TO PERFORM THE 1 ϑm FINISH
Using an isopropyl alcohol dampened lint-free cloth, clean the
ferrule, the polishing jig, and the 5 ϑm lapping acetate. Blow all
pieces dry with compressed air.
Clean a sheet of the green 1 ϑm lapping acetate and place it shiny
side down directly on top of the 5 ϑm acetate which remains on
the polishing pad. Place three to four drops of water on the 1 ϑm
acetate (Fig. E5).
5. PERFORMING THE 1 ϑm FINISH
Insert the ferrule into the jig and lower it gently on to the
moistened green 1 ϑm acetate.
Lightly polish until all the epoxy is removed (15 to 20 figure 8's).
Inspect with the jewelers loupe (Fig. E6).
Do not overuse the 1 ϑm lapping acetate. Always attempt to
polish on fresh areas of the acetate. After the entire surface of the
acetate has been used it can be cleaned with isopropyl alcohol
and reused to polish several more connectors and then discarded.
If deep scratches appear on the fiber, discard the 1 ϑm acetate at
that time.
6. FINAL INSPECTION
After polishing, remove the connector from the polishing jig, clean
the ferrule and insert it into the fiber view scope (Fig. E7). The
fiber should be free of epoxy and scratches and be flush with the
domed end of the ceramic ferrule (Fig. E8). If scratches or epoxy
are present (Fig. E9) clean the 1 ϑm acetate surface and repeat
step 5 with frequent inspections.
Fig. E5
Fig. E6
Fig. E7
Fig. E8
Fig. E9