Fusion Splicing is a preferred way to join two fibers together by using heat. Whether the fiber was broken or not long enough, a fusion splicer will make your job easier. Splicing fiber optic cable is a fairly simple procedure. Prepared fiber ends are placed in the splicer and automatically aligned and then fused together. This method ensures greater reliability with less light being scattered or reflected back by the splice and with the splice itself being as strong as the original optical fiber.