Fusion splicing is used for joining cables during network installation projects, repairing cables, mounting pre-polished splice-on connectors, and many applications in factories that make fiber optic components and subsystems. Fusion splicing is the process of fusing or welding two fibers together usually by an electric arc. Unlike mechanical splicing, which relies on alignment sleeves and index-matching gel, this thermal approach creates a continuous glass path between fibers. The result is a joint that closely matches the. Regardless of your level of experience, creating high-quality, high-performance fiber optic networks requires developing your skills in fusion splicing. The goal is to fuse the two fibers together in such a way that light passing through the fibers is not scattered or reflected back by the splice, and so that the splice and the region surrounding it are almost as strong as the.