Fig. 1. Schematic diagram of fusion splicing process

Fig. 2. Fusion splicing effect diagram of silica fiber and fluoride fiber with the same diameter

Fig. 3. (a) Fusion splicing parameter; (b) The fusion splicing effect diagram of large-package-small structure

Fig. 4. Fusion state of fluorine indium fiber under different heating time

Fig. 5. Fusion effect of silica fiber and indium fluoride fiber under different power

Fig. 6. Variation curve of fusion point loss and tensile strength with offset

Fig. 7. Variation curve of fusion point loss and tensile strength with hot push

Fig. 8. Stability of output power of high power MIR-SC

Fig. 9. (a) Fusion splicing effect diagram of 8.2/125 μm silica fiber and 15/250 μm ZBLAN fiber; (b) Fusion splicing effect diagram of 8.2/125 μm silica fiber and 15/200 μm fluorite tellurite fiber