| 摘要 |
PURPOSE:To suppress influence due to the dispersion of a pushed value and to attain connection with a low loss by setting up the ratio of the outer diameter of a taper part to that of a fiber at a non-connection part within a certain fixed range. CONSTITUTION:The end parts of two multicore optical fibers 10, 10 to be connected are abutted and pushed to fuse and connect them. Then, a taper part 16 is formed on the connection part 14 by heating the connection part 14 at a high temperature and pulling out both ends of the fibers 10. In this case, the ratio d/D of the outer diameter (d) of the fiber at the taper part 16 to the outer diameter D of the fiber at the non-connection part is set up to 0.9-1.2. Thus, the dispersion of cut length at the time of connecting the fibers 10, 10 is allowed up to 64/2=32mum and the optical fibers can be connected with a low loss. |
