Splices with visible bubbles on screen. Inspect the fiber with a cleaning microscope. Even a minor error can lead to significant signal loss or faulty splices. The following describes the most common problems, their quick diagnosis, and recommended solutions. Fiber contamination Alignment error messages. 1 dB). - it's normal to see a line at the splice point whenever you're splicing MM fibers or dissimilar fibers. The fiber appears fused, but a visible imperfection is present exactly where the two fibers were joined. A bubble usually forms when gas or contamination becomes trapped in the molten glass during. Fusion Splicing Problems are a daily reality for fiber technicians, ranging from simple dust contamination to complex arc instabilities. To counteract these errors, technicians can go through the following troubleshooting checklists: Perform an Arc Test: Before splicing, it's important to perform.
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