| 摘要 |
PURPOSE:To improve the stability of connections among various optical fibers by holding a heat source constant, and arranging a heat-resisting material in a heating area and specifying the shape of the heating area. CONSTITUTION:Heat-resisting members 4 and 4' are provided in the heating area between electrodes 1 and 1' and the shape of the heating area is specified, and optical fibers 3 and 3' are adhered together by welding. In this state, a voltage is applied between electrodes 1 and 1' to cause discharge, and then the discharging area is specified by the heat-resisting member 4, thereby obtaining a heating distribution as shown by a solid line. Consequently, heating is performed efficiently within a narrow range as compared with a heating distribution obtained without the heat-resisting member 4 as shown by a broken line. Further, the size of the heat-resisting member 4 is varied to vary the shape of the discharging area, and the design of the heating distribution for connections of various optical fibers is facilitated, thereby improvidng the stability of the connections. |
