中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

282 records (took 0.048 seconds)

    Manufacture of base material for infrared optical fiber
    231.
    发明专利
    Manufacture of base material for infrared optical fiber 失效
    红外光纤基材的制造

    公开(公告)号：JPS593030A

    公开(公告)日：1984-01-09

    申请号：JP10837782

    申请日：1982-06-25

    Applicant: Nippon Telegr & Teleph Corp

    Inventor： MITACHI NARIYUKI ,  MIYASHITA TADASHI

    IPC: C03B37/014 ,  C03B37/012 ,  G02B6/00

    CPC classification number: C03B37/01268 ,  C03B2201/82

    Abstract: PURPOSE:To manufacture a base material for an infrared optical fiber having a core-clad waveguide structure, by erecting a fine wire at the center of a casting mold, pouring a melt for a clad, pulling out the wire, and filling molten glass for a clad into the resulting small cavity. CONSTITUTION:A casting mold is composed of an outer frame 1 divided into a plurality of parts 2, 2', 2'' and a ring 3 for clamping the frame 1. A fine metallic wire 6 of platinum or the like is erected at the center of the inner hollow 5 of the mold with a bottom cover 4 in-between, and molten glass for a clad is poured into the hollow 5. The wire 6 is heated beforehand by directly supplying an electric current or by other method, and it is pulled out immediately after pouring the molten glass. Molten glass for a core is filled into the resulting small cavity and annealed so as to prevent the production of stress. After finishing the molding, the parts 2, 2', 2'' are detached to obtain a base material for an infrared optical fiber. By this method, a fluoride glass base material for an optical fiber capable of transmitting infrared rays having about 2-6mum wavelengths can be manufactured.

    Abstract translation: 目的：为了制造具有芯包覆波导结构的红外线光纤的基材，通过在铸模的中心竖立细线，浇注用于包层的熔融物，拉出线，并将熔融玻璃填充 一个包裹进所产生的小腔。 构成：铸模由分为多个部分2,2'，2“的外框1和用于夹紧框架1的环3组成。铂等的细金属线6竖立在 模具的内部空心5的中心与中间的底盖4和用于包层的熔融玻璃一起注入中空部5.通过直接供给电流或其他方法预先加热线6， 在浇注熔融玻璃后立即拔出。 将用于芯的熔融玻璃填充到所得到的小腔中并进行退火，以防止产生应力。 在完成模制之后，拆下零件2,2'，2“以获得用于红外光纤的基材。 通过这种方法，可以制造出能够透射具有约2-6μm波长的红外线的用于光纤的氟化物玻璃基材。

    Method for fabricating and processing a preform, preform and optical fiber
    233.
    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）。

    Active single mode optical fibres and method for their fabrication
    238.
    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。

    Method for making core holes in cast optical fiber preforms
    239.
    发明公开
    Method for making core holes in cast optical fiber preforms 失效
    在通过模制预成型件用于光纤制造的用于芯的孔的制造过程

    公开(公告)号：EP0787691A1

    公开(公告)日：1997-08-06

    申请号：EP97300368.4

    申请日：1997-01-21

    Applicant: AT&T Corp.

    Inventor： Kopylov, Nonna ,  Kortan, Ahmet R.

    IPC: C03B37/012

    CPC classification number: C03B37/01268 ,  C03B2201/82 ,  C03B2203/22 ,  C03B2203/24 ,  Y10S65/04

    Abstract: A method of making core holes in cast cladding glass for fabricating optical fiber preforms to make single and multimode optical fibers. Liquid cladding glass is poured into a casting mold having a metallic wire (e.g. Pt wire) that is translated through the liquid glass as it cools so that the wire essentially carves out a smooth cylindrical core hole along the cylindrical axis of the cooled cladding glass. The method substantially reduces surface contamination at the interface of the core hole and the cladding glass because any liquid glass that comes in contact with the metallic wire is removed during the process, leaving behind a pristine glass surface. The glass may be heavy metal fluoride glass, such as ZBLAN.

    Abstract translation: 使芯孔中铸造覆层的玻璃用于制造光纤预制件，使单模和多模光纤的方法。 液体包层玻璃倒入具有金属导线（例如铂线）并通过液体玻璃译为其冷却如此做了导线本质上雕刻出沿冷却包层玻璃的圆柱形轴的光滑的圆柱形芯孔的铸模。 该方法基本上在芯孔的界面和包层玻璃减少表面污染因为任何液体玻璃并开始与金属线的过程中被移除接触，留下原始玻璃表面。 玻璃可以是重金属氟化物玻璃，颜色：例如ZBLAN。

Patent Agency Ranking