18
Note:
The fibers are checked
automatically when you press
Splice button. The splicer
automatically focuses the fibers
and checks for damage or dust
particles.
3.9 Splicing
To make a good splice, the optical fiber is observed with the image processing
system equipped in the . However, there are some cases when the image
processing system cannot detect a faulty splice. Visual inspection with the monitor
is often necessary for better splicing yield. The instruction below describes standard
operating procedure.
Fibers loaded in the splicer move forward toward each other. The fiber forwarding
motion stops at a certain position shortly after the cleaning arc is performed. Next,
the cleave angle and end-face quality are checked. If the measured cleave angle
is greater than its set threshold or fiber chipping is detected, the buzzer will sound
and an error message warns the operator. After detection completed, the fusion
splicer will stop working, and the values about offset, gap and cleaved angle will be
displayed on the monitor.
If no error message is displayed, the below stated end-face conditions are used
for visual inspection. If observed, remove the fiber from the splicer and repeat fiber
preparation. These visual defects maycause a faulty splice.
dust on fiber
chip
large cleave angle
lip
