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Fiber optic splicers are tools to produce butt-ended joints between two pieces of fiber optic cable. The connection is spliced to minimize light distortion, and this process is accomplished via the means of an electric arc to melt the glass fibers together. After the cable has been prepared for splicing (jacket stripped; cable cleaned and cleaved), the two cables are placed end-to-end in the splicer. Small, precise motors align the cables accurately, and a magnifier or video camera allows the operator to examine the alignment. The splicer burns impurities in the connection before fusing, where the splicer melts the fiber end without affecting the cable cladding or core. Melted fiber tips are conjoined and the cable is tested, with most splices showing an optical loss of .1 dB or less.

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