Any visible bubble means high splice loss. Cause: Contamination on one or both fiber end-faces. Most often skin oil from handling, dust from the work environment, or coating residue not fully stripped. Fix: Cut back, re-strip, re-clean with 99% IPA, re-cleave, re-splice. This guide is a field reference for diagnosing common splice errors. Quick triage: When splices start failing, work. Fibre fusion splicers are critical instruments in modern optical fibre installation and maintenance. The system continuously analyzes the splice process and provides feedback when something is not optimal. Many of the errors reported by the splicer can be corrected quickly and easily, once you. This guide reveals the secrets to fusion splicing with little fluff—just proven, straightforward techniques refined from years of work in the field. The guide provides the complete workflow, covering safety precautions, tool selection, fiber preparation, fusion operation, quality control, and. There are bubbles or cracks in the contacts during welding In this case, the fiber may be poorly cut, such as the end face is inclined, burr, or the end face is not clean, and the fiber needs to be cleaned before the fusion splicing operation; another case is that the anti-electric electrode is. I'm having trouble with Fujikura 90S+, the problem is that i get everytime a bubble error when going to finish the splice procedure. I've done arc calibration many times and some of the times i get potency very low, nonetheless of that i've tried following the manual with some success but the.