GLASFASERKABEL
    1.
    发明公开
    GLASFASERKABEL 有权
    光纤电缆

    公开(公告)号:EP1993963A1

    公开(公告)日:2008-11-26

    申请号:EP07722051.5

    申请日:2007-03-14

    申请人: Schott AG

    IPC分类号: C03C13/04

    CPC分类号: C03C13/046

    摘要: The invention relates to step-index optical waveguides that are made of multicomponent glass comprising a lanthanum-containing or lanthanum-free core glass and an outer glass which entirely surrounds the core class on the circumferential wall thereof. The invention further relates to a fiber-optic cable for conducting electromagnetic radiation, comprising at least one bundle of individual fibers which encompass step-index optical waveguides that are made of multicomponent glass containing a core glass and an outer glass that entirely surrounds the core glass on the circumferential wall thereof. The aim of the invention is to provide the step-index optical waveguides with great transmission capacity for transmitting data while keeping the transfer characteristics sufficiently durable. Furthermore, the fiber-optic cable is to be resistant against physical and chemical environmental influences and be protected against radical ambient chemicals. Said aims are achieved by the fact that the outer glass of the step-index optical waveguides is provided with a material composition which is largely free from chemical interactions with the core glass when the fibers are drawn and is chemically inactive towards the plastic jacket.