Research on fusion splicing technology of 7-core fiber

The actual trunk multi-core fiber (MCF) splicing is studied by a 7-core fiber for long-distance transmission. The results show that the splicing quality is influenced by fusion splicing parameters mostly, such as Including fiber separation distance and electrode spacing. It is influenced by the mismatch of the mode field and other factors. By improving the process of the fiber end-face treatment, programming the end-face alignment and using the axis algorithm to optimize the fusion splicing parameters automatically, the low-loss optical fiber fusion is achieved. The typical value of splicing point loss can be less than 0.35dB, which can better meet the requirements of application for engineering wiring.