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    Preparation of chalcogenide glass for optical fiber
    93.
    发明专利
    Preparation of chalcogenide glass for optical fiber 失效
    用于光纤的聚氯乙烯玻璃的制备

    公开(公告)号：JPS5742551A

    公开(公告)日：1982-03-10

    申请号：JP11749480

    申请日：1980-08-26

    Applicant: Nippon Telegr & Teleph Corp

    Inventor： SHIBATA SHIYUUICHI ,  MANABE TOYOTAKA

    IPC: C03B5/00 ,  C03B37/012 ,  C03B37/018 ,  C03C3/32 ,  C03C4/10 ,  C03C13/04 ,  G02B6/00

    CPC classification number: C03B37/01807 ,  C03B37/01265 ,  C03B37/018 ,  C03B2201/86 ,  C03C3/321 ,  C03C23/0085

    Abstract: PURPOSE:To obtain a chalcogenide glass for an optical fiber with low loss, by heat-treating a raw material for forming the chalcogenide glass in the stream of a gaseous halide or gaseous halogen, and melting and vitrifying the heat-treated raw material. CONSTITUTION:A Ge-S chalcogenide glass is dehydrated with S2Cl2 as a treating agent 3. The S2Cl2 is introduced into a saturator container 2, gasified by blowing a transporting gas from a transporting gas introductory port 1 into the saturator container 2, and then led to a quartz glass tube 8 provided in a quartz glass cover 5. A powdery sulfur and germanium in the form of an ingot as a raw material 7 for forming glass are introduced into the quartz glass tube 8 and heated by a heater 6, and the gasified S2Cl2 is made to flow while melting the sulfur. The S2Cl absorbs water and is decomposed in the heating part to give a gas, e.g. HCl or SO2, and the unreacted S2Cl2, which are expelled from a duct 9. The raw material 7 after the treatment is sealed up in the quartz tube 8 under reduced pressure, molten and vitrified to give a chalocgenide glass for an optical fiber.

    Abstract translation: 目的：为了获得低损耗光纤的硫族化物玻璃，通过在气态卤化物或气态卤化物流中热处理用于形成硫族化物玻璃的原料，并对经热处理的原料进行熔融和玻璃化处理。 构成：将Ge-S硫族化物玻璃用S2Cl2作为处理剂脱水3.将S2Cl2引入饱和器容器2中，通过将运输气体从输送气体导入口1吹入饱和器容器2而气化，然后引导 提供到石英玻璃盖5中的石英玻璃管8.将石英玻璃管8中的作为原料7的锭形状的粉末硫和锗引入石英玻璃管8中，并通过加热器6加热， 使气化的S2Cl2在硫磺熔化时流动。 S2Cl吸收水分，在加热部分分解，得到气体， HCl或SO2，以及从管道9排出的未反应的S2Cl 2。将处理后的原料7在减压下密封在石英管8中，熔融并玻璃化，得到光纤的共晶硅化玻璃。

    Method for fabricating and processing a preform, preform and optical fiber
    95.
    发明公开
    Method for fabricating and processing a preform, preform and optical fiber 审中-公开
    一种用于生产和处理的预成型件，预成型件和光纤的方法

    公开(公告)号：EP2261181A1

    公开(公告)日：2010-12-15

    申请号：EP09160866.1

    申请日：2009-05-21

    Applicant: Silitec Fibers SA

    Inventor： Sandoz, Frédéric ,  Pedrido, Carlos ,  Hamel, Philippe ,  Ribaux, Philippe ,  Giraud, Alain

    IPC: C03B37/012 ,  C03B37/027

    CPC classification number: C03B37/0122 ,  C03B37/01211 ,  C03B37/01297 ,  C03B2201/82 ,  C03B2201/83 ,  C03B2201/86 ,  C03B2203/14 ,  C03B2203/22 ,  C03B2203/42

    Abstract: The inventive method relates to manufacturing a secondary preform (9) that is used for drawing an optical fiber (90) having a core and a cladding with different refractive indices. The method comprises the steps of
    - holding an outermost tube (0) with a closed lower end (09);
    - inserting at least an innermost tube (1) coaxially aligned into the outermost tube (0);
    - selecting at least one sort of intermediate glass particles (100) and one sort of innermost glass particles (101) according to the profile determined for the secondary preform (9) or the optical fiber (90);
    - filling the annular space (01) between the neighbouring tubes (0, 1) with the intermediate glass particles (100);
    - filling the innermost tube (1) that is empty or comprises a solid preform (10) with the innermost glass particles (101);
    - performing a final thermal process including thermally processing at least the innermost glass particles (101), the intermediate glass particles (100) and the outermost tube (0) in order to obtain a fused secondary preform (9).

    Abstract translation: 本发明的方法涉及一种制造具有芯和具有不同折射率的包层二次预制件（9）并用于光纤（90）的图。 该方法包括以下步骤： - 用封闭下端（09）保持外管大多数（0）; - 至少插入到最内管（1）同轴地对准到所述外管最（0）; - 选择至少一个排序中间玻璃颗粒（100）和一个排序最内侧的玻璃颗粒（101）雅丁于轮廓确定性开采二次预制件（9）或所述光纤（90）的; - 填充相邻管之间的环形设计空间（01）（0,1）与所述中间玻璃颗粒（100）; - 填充所述最内管（1）即空的或包含固体预成型件（10）与最内侧的玻璃颗粒（101）; - 执行最后的热工艺包括热处理至少最里面的玻璃颗粒（101），中间的玻璃颗粒（100）和所述外管最（0），以获得熔融二次预制件（9）。

    PROCESS FOR MAKING OPTICAL FIBERS FROM CORE AND CLADDING GLASS RODS
    98.
    发明公开
    PROCESS FOR MAKING OPTICAL FIBERS FROM CORE AND CLADDING GLASS RODS 失效
    VERFAHREN ZUR HERSTELLUN VON OPTISCHEN FASERN

    公开(公告)号：EP0975553A4

    公开(公告)日：2000-02-02

    申请号：EP97938125

    申请日：1997-08-08

    Applicant: US NAVY

    Inventor： SANGHERA JASBINDER S ,  PUREZA PABLO C ,  MOSSADEGH REZA ,  AGGARWAL ISHWAR D

    IPC: C03B37/023

    CPC classification number: C03B37/023 ,  C03B2201/86

    Abstract: A core glass rod (54) and a cladding glass rod (56) are melted in a furnace (50). The melts flow together to an orifice fitted with a plug (62). The plug (62) is removed from the furnace and a core/clad fiber is drawn from the confluence.

    Abstract translation: 核心/复合玻璃光纤通过将核心玻璃棒和包层玻璃棒熔化在彼此不同心的单独的坩埚中并且相应的芯和包层玻璃熔体彼此脱离接触而制成玻璃 熔融接触区域靠近纤维拉伸孔，其中包层玻璃围绕芯玻璃并且芯/包层玻璃纤维被拉伸。 该方法能够使包层玻璃纤维从芯和包层玻璃棒直接拉制，而不需要预成型件或从玻璃切块或块形成熔体，从而降低生产纤维的成本，并且还生产玻璃包覆光纤 纯度高，同心度极佳。 已经制造了同心度为100％的硫族化物玻璃纤维。

    Active single mode optical fibres and method for their fabrication
    100.
    发明公开
    Active single mode optical fibres and method for their fabrication 失效
    Aktive optische Einmoden-Fasern und Verfahren zu deren Herstellung

    公开(公告)号：EP0842907A1

    公开(公告)日：1998-05-20

    申请号：EP97120151.2

    申请日：1997-11-18

    Applicant: CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.

    Inventor： Braglia, Marco

    IPC: C03C13/04 ,  C03B37/027 ,  C03B37/012

    CPC classification number: C03C13/046 ,  C03B37/01211 ,  C03B37/01268 ,  C03B37/027 ,  C03B2201/06 ,  C03B2201/30 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2201/80 ,  C03B2201/82 ,  C03B2201/86 ,  C03B2203/24 ,  C03C13/041 ,  C03C13/043

    Abstract: An active single mode optical fiber has the core made of a rare earth doped non-oxide glass and the cladding made of an oxide glass. The glass of the core has a melting temperature lower than that of the glass of the cladding and lying within the range of the softening temperatures of the latter. In a preferred embodiment the core is made of a chalcogenide glass and the cladding is made of a lead silicate glass. To produce the fibre, a preform, obtained by introducing an element made of the non-oxide glass into the hole (2) of a capillary tube (1) made of the oxide glass, is brought to a temperature lying within the range of softening temperatures of the oxide glass and not lower than the melting temperature of the non-oxide glass, and is drawn. The capillary tube (1), during the drawing process, serves as a container for the molten glass of the core.

    Abstract translation: 有源单模光纤具有由稀土掺杂的非氧化物玻璃制成的芯和由氧化物玻璃制成的包层。 芯的玻璃的熔融温度低于包层玻璃的熔化温度，并且处于软化温度的范围内。 在优选实施例中，芯由硫族化物玻璃制成，并且包层由硅酸铅玻璃制成。 为了制造纤维，通过将由非氧化物玻璃制成的元件引入到由氧化物玻璃制成的毛细管（1）的孔（2）中而获得的预成型件达到处于软化范围内的温度 氧化物玻璃的温度并且不低于非氧化物玻璃的熔融温度，并被拉伸。 毛细管（1）在拉伸过程中用作芯的熔融玻璃的容器。

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