| 摘要 |
PURPOSE:To make the intermediate part of an optical fiber bundle flexible by a simple method by forming a linear melt-sticking part between multicore rods while controlling spinning temperature low, and by decomposing and separating the melt- sticking part with fluoric acids, etc., after spinning. CONSTITUTION:Quartz-thread multicore rods 1 are bundled in two stages each of five rods, and then spinned into a sheet in an electric furnace 2 while the turning speeds of rollers 3 are adjusted. In this case, the spinning temperature is controlled low enough to limit melt-sticking between the multicore rods, and the multicore rods are connected linearly. The intermediate part of the thus spinned optical fiber bundle is dipped in a fluoric acid solution to be dissolved. Consequently, the connection part is dissolved easily without spoiling the functions of the optical fiber to provide flexibility. |
