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    Method of producing optical wave guide fibers
    42.
    发明授权
    Method of producing optical wave guide fibers 失效
    光波导纤维的制造方法

    公开(公告)号：US3938974A

    公开(公告)日：1976-02-17

    申请号：US462481

    申请日：1974-04-22

    Applicant: Pedro B. Macedo ,  Theodore A. Litovitz

    Inventor： Pedro B. Macedo ,  Theodore A. Litovitz

    IPC: C03B37/016 ,  C03C13/00 ,  C03C13/04 ,  C03C15/00 ,  C03C21/00 ,  C03C23/00 ,  G02B6/02 ,  G02B6/028 ,  C03C17/02 ,  G02B5/14

    CPC classification number: C03B37/016 ,  C03C13/005 ,  C03C13/045 ,  C03C15/00 ,  C03C21/00 ,  C03C23/0095 ,  C03B2201/10 ,  C03B2201/30 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/50 ,  C03B2201/54 ,  G02B6/0281

    Abstract: Procedures are disclosed for producing both core-cladding optical fibers and self-focusing optical fibers from porous germinate and/or silicate glasses obtained after phase separation and removal of the soluble phase. A glass which is separable into at least two phases one of which is soluble, is heated to cause phase separation. The soluble phase is leached out removing undesired impurities. The pores are collapsed and this glass is used to produce cores and/or cladding layers, or self focusing fibers. According to one aspect of the invention, preforms of the porous glass have their interconnected pores stuffed with a dopant. In the production of core-cladding optical fibers, the dopant modifies the index of refraction of the core and/or cladding so that the index of refraction of the core is greater than that of the cladding. The control of this index of refraction can be accomplished by addition of non silicate network formers such as GeO.sub.2 to the original melt before phase separation. These network formers will stay in the insoluble phase. In producing self-focusing fibers, the dopant may be non-uniformly deposited in order to produce a radial gradient in the index of refraction, or sodium or potassium ions may be ion exchanged into the glass for a portion of a dopant containing lithium or thallium to produce such an index of refraction gradient.

    Abstract translation: 公开了用于在相分离和去除可溶相之后获得的多孔发芽体和/或硅酸盐玻璃中生产芯包层光纤和自聚焦光纤的方法。 可分离成至少两相的玻璃是可溶的，被加热以引起相分离。 浸出溶出相去除不需要的杂质。 孔被折叠，并且该玻璃用于生产芯和/或包层或自聚焦纤维。 根据本发明的一个方面，多孔玻璃的预制件具有填充有掺杂剂的互连孔。 在芯包层光纤的生产中，掺杂剂改变了芯和/或包层的折射率，使得芯的折射率大于包层的折射率。 该折射率的控制可以通过在相分离之前向原始熔体中添加诸如GeO 2的非硅酸盐网络形成剂来实现。 这些网络成员将保持在不溶性阶段。 在生产自聚焦纤维时，可以不均匀地沉积掺杂剂以产生折射率的径向梯度，或者钠或钾离子可以离子交换到玻璃中，用于含有锂或铊的掺杂剂的一部分 以产生这样的折射率梯度。

    Optical fiber, in particular a laser fiber containing a doped glass fiber core and cladding around the fiberglass core
    49.
    发明授权
    Optical fiber, in particular a laser fiber containing a doped glass fiber core and cladding around the fiberglass core 有权
    光纤，特别是包含掺杂的玻璃纤维芯和围绕玻璃纤维芯的包层的激光光纤

    公开(公告)号：US08879879B2

    公开(公告)日：2014-11-04

    申请号：US13320440

    申请日：2010-06-09

    Applicant: Wolfgang Hämmerle ,  Lothar Brehm ,  Matthias Auth ,  Elke Poppotz

    Inventor： Wolfgang Hämmerle ,  Lothar Brehm ,  Matthias Auth ,  Elke Poppotz

    IPC: G02B6/02 ,  C03B37/018 ,  G02B6/036 ,  H01S3/067

    CPC classification number: C03B37/01861 ,  C03B37/01838 ,  C03B37/01869 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/36 ,  C03B2201/40 ,  G02B6/03633 ,  G02B6/03638 ,  G02B6/03694 ,  H01S3/06708

    Abstract: The invention relates to an optical fiber, in particular a laser fiber, containing a doped glass fiber core (1) and cladding (2) around the latter with a refraction index profile which decreases outwards from the fiber core. The optical fiber is distinguished by at least one intermediate layer (3, 4, 5) being disposed between the glass fiber core and the cladding to reduce the mechanical tension therebetween. In one advantageous embodiment, the intermediate layer is doped in such a way as to ensure a stepped mechanical tension distribution between the glass fiber core and the cladding, and is co-doped in such a way as to reduce the refractive index and counteract the refraction index-increasing effect of the intermediate layer doping. The invention further relates to an application of at least one doped barrier layer to a core region during preparation of the preform to avoid diffusion of special core dopants from the core during the collapse process, and to allow the diffusion of special dopants between the barrier layer and the core layer.

    Abstract translation: 本发明涉及一种光纤，特别是激光光纤，其中包含掺杂的玻璃纤维芯（1）和包层（2），后者具有从光纤芯向外减小的折射率分布。 光纤的特征在于至少一个中间层（3,4,5）设置在玻璃纤维芯和包层之间以减小它们之间的机械张力。 在一个有利的实施例中，中间层以这样的方式被掺杂，以确保玻璃纤维芯和包层之间的阶梯式机械张力分布，并且以减少折射率并抵消折射的方式共掺杂 指数增加效应的中间层掺杂。 本发明还涉及在制备预制棒期间将至少一个掺杂的阻挡层应用于核心区域，以避免在塌陷过程中特殊的核掺杂剂从核心扩散，并且允许特殊掺杂剂在阻挡层 和核心层。

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