Method for manufacturing an optical fiber preform
    2.
    发明授权
    Method for manufacturing an optical fiber preform 有权
    光纤预制棒的制造方法

    公开(公告)号:US07702204B2

    公开(公告)日:2010-04-20

    申请号:US11627483

    申请日:2007-01-26

    IPC分类号: G02B6/02

    摘要: A method for manufacturing a final optical fiber preform via overcladding of a primary preform having a cross section area is disclosed. The method includes at least one manufacturing step of the primary preform by deposit of an inner cladding and of a central core inside a tube of fluorine-doped silica, the tube being chosen such that it has a cross section area that is maximally about 15% less than the cross section area of the primary preform. With the method of the invention it is possible to manufacture a preform of large capacity at reduced cost which allows the drawing of an optical fiber having reduced transmission losses.

    摘要翻译: 公开了一种用于通过包覆具有横截面积的初级预型件制造最终光纤预制件的方法。 该方法包括通过将内包层和中心芯沉积在氟掺杂二氧化硅管内的初级预制件的至少一个制造步骤,该管被选择为使得其具有最大约15%的横截面积, 小于初级预制件的横截面面积。 利用本发明的方法,可以以低成本制造大容量的预成型件,这允许拉制具有降低的传输损耗的光纤。