| 摘要 |
PURPOSE:To reduce insertion loss and to make manufacture relatively easy by fitting a terminal part of an optical fiber cable to a ferrule. CONSTITUTION:The ferrule 1 consists of a ceramic member 12 which has a fiber insertion hole and is worked precisely so that eccentricity from the external diameter is <=2mum and a metallic pipe material 17 which is worked with a die to a uniform external diameter and thickness. The ceramic member 12 is driven into and fitted in one terminal of the metallic pipe material 17 which is cut to specific length. Further, the other part of the metallic pipe material 17 where the ceramic member 12 is not driven is crushed with a press in three outer periphery directions to form a fitting hole 18 which has a little bit larger inscribed circle diameter than the external diameter of the nylon coating part 15 of the optical fiber cable 8. |
