Fiber Optic Fusion Splicing:Two Technologies Compared

Todd Norton and Joseph Geary

When fiber optic cables are installed or repaired, splicing is by far the most common method of joining any two fibers together. Whether fusion or mechanical splicing is used, the goal is to join the tips of the two fibers together, end-to-end, in a permanent manner. The most important criteria for a good fiber splice is low insertion loss (the amount of light lost at the junction, relative to what would cross if the fiber were continuous), back reflection from any features in the junction, and the stability of the splice over an extended time at normally varying ambient temperature.

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