| 摘要 |
PURPOSE:To enable the best self-alignment of all fibers by monitoring optical fibers nearby a fusion splicing zone by a monitoring device and heating the optical fibers additionally intermittently or periodically so that the optical fibers enters the best fusion splicing state. CONSTITUTION:Cores of a five-core fiber are heated and fused between electrodes 4 and 4 by 1st arc discharge and fusion spliced by being pushed in. Variation in external diameter and axis shifts of those fiber cores 101-105 are monitored on a monitor television and read by a CCD to repeat the additional discharge until their values become smaller than determined values. Consequently, even if their connection states are different or vary at the time of 1st fusion splicing, the heating is carried out while the extent of correction by the additional heating is confirmed at all times, so any excessive heating is not performed by mistake and the welding is carried out with the least connection loss. |
