OPTICAL FIBER AND METHOD OF MANUFACTURE THEREOF
    308.
    发明公开
    OPTICAL FIBER AND METHOD OF MANUFACTURE THEREOF 有权
    OPTISCHE FASER UND VERFAHREN ZUR DEREN HERSTELLUNG

    公开(公告)号:EP1154294A1

    公开(公告)日:2001-11-14

    申请号:EP99959842.8

    申请日:1999-12-16

    Abstract: This invention relates to an optical fiber having a structure that effectively reduces transmission loss and bending loss. An optical fiber according to this invention is an optical fiber mainly comprised of silica and including a core region and a cladding region covering the core region. The core region is doped with chlorine so as to have a refractive index higher than that of pure silica. The cladding region is doped with fluorine so as to have a refractive index lower than that of pure silica. The optical fiber, in particular, is characterized in that a peak value of a relative refractive index difference of the core region with respect to a refractive index of pure silica is 0.05% or more.

    Abstract translation: 本发明涉及具有有效地降低传输损耗和弯曲损耗的结构的光纤。 根据本发明的光纤是主要由二氧化硅组成并且包括芯区域和覆盖芯区域的包层区域的光纤。 核心区域用氯掺杂以具有高于纯二氧化硅的折射率的折射率。 掺杂氟的包层区域的折射率低于纯二氧化硅的折射率。 特别地,光纤的特征在于,核心区域相对于纯二氧化硅的折射率的相对折射率差的峰值为0.05%以上。

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