The rule is to coil the fiber once after each splicing and heat shrinking of one or several optical fibers in fiber optic sleeve or optical fibers in a branch direction optical cable. During the fusion process, the “V” groove, electrode, objective lens, and fusion room. Therefore, it is necessary to avoid bird's-nest fiber coiling; to coil fiber well is a meticulous job that requires great patience and does not allow for any sloppiness. Before fiber coiling, the optical cable and pigtail should be pre-processed, and the optical cable and pigtail should be opened. A fusion splicer is a specialized tool used in fiber optic networks to join two fiber optic cables together permanently. It works by applying heat to the ends of the cables, causing them to melt and fuse together. Result is a near-seamless / lossless joint. The article below offers more detail on fusion-splicing procedures, especially the fiber “prep.