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21 条记录 (耗时 0.021 秒)

    Method for glass fiber splicing by flame fusion
    1.
    发明授权
    Method for glass fiber splicing by flame fusion 失效
    火焰熔融玻璃纤维拼接方法

    公开(公告)号：US4713105A

    公开(公告)日：1987-12-15

    申请号：US935162

    申请日：1986-11-25

    申请人： John T. Krause ,  Charles R. Kurkjian ,  Un-Chul Paek

    发明人： John T. Krause ,  Charles R. Kurkjian ,  Un-Chul Paek

    IPC分类号： G02B6/255 ,  C03B23/20 ,  C03B37/10

    CPC分类号： G02B6/2551

    摘要： In the interest of producing high-strength splice connections between silica-based glass fibers a method of using a tri-particle flow of gases for flame fusion is disclosed. An outer relatively high-velocity flow of oxygen surrounds an intermediate, lower-velocity flow of chlorine or oxygen which in turn surrounds a central flow of H.sub.2, D.sub.2, NH.sub.3, or ND.sub.3.Particularly high strengths are achieved when a central flow of hydrogen or deuterium and an intermediate flow of chlorine are used in such a fashion as to heat fiber ends to be spliced to temperatures of 500 degrees C. and beyond only after these ends have been enveloped by chlorine.

    摘要翻译： 为了生产二氧化硅基玻璃纤维之间的高强度接头连接，公开了一种使用三粒子气流进行火焰熔融的方法。 外部相对高速的氧气流围绕中间的较低速度的氯或氧气流，其又包围H2，D2，NH3或ND3的中心流。 当以这样的方式使用氢气或氘气和中间氯流的中心流动时，特别高的强度是将待接合至500摄氏度的温度的纤维端部加热，并且仅在这些端部被这些端部包围之后 氯。

    Cooler of optical fiber draw tower
    6.
    发明授权
    Cooler of optical fiber draw tower 失效
    光纤拉塔冷却器

    公开(公告)号：US06279354B1

    公开(公告)日：2001-08-28

    申请号：US09229609

    申请日：1999-01-13

    申请人： Un-Chul Paek ,  Sung-Koog Oh ,  Man-Seok Seo ,  Kyu-Hwan Hwang

    发明人： Un-Chul Paek ,  Sung-Koog Oh ,  Man-Seok Seo ,  Kyu-Hwan Hwang

    IPC分类号： C03B544

    CPC分类号： C03B37/02718 ,  C03B2205/55

    摘要： A cooler of an optical fiber draw tower, situated below a melting furnace for melting a preform for an optical fiber, for cooling the optical fiber drawn from the preform melted in the melting furnace, includes at least one heat exchanger installed with a predetermined length surrounding the optical fiber drawn from the melting furnace, for cooling the drawn optical fiber. The heat exchanger is formed of a thermoelectric cooler (TEC) for taking electrical energy through one heat absorbing surface to emit heat to the other heat emitting surface and has a tubular shape in which the heat absorbing surface of the TEC surrounds the optical fiber drawn from the melting furnace along the drawing direction by a predetermined length, and the drawn optical fiber is cooled as it passes through the tubular TEC. Also, the cooler further includes an auxiliary cooler attached to the heat emitting surface of the TEC, for cooling the emitted heat. Therefore, the cooler can enhance the cooling effect, so that the drawing of the optical fiber can be sped up without increasing the height of the optical fiber draw tower.

    摘要翻译： 位于用于熔化用于光纤的预成型件的熔化炉下方的光纤拉制塔的冷却器，用于冷却从在熔融炉中熔化的预制件中拉出的光纤，包括安装有预定长度的至少一个热交换器 从熔化炉中拉出的光纤用于冷却拉制的光纤。 热交换器由热电冷却器（TEC）形成，用于通过一个吸热表面获取电能以向另一个发热表面发射热量，并具有管状形状，其中TEC的吸热表面围绕从 熔融炉沿着拉伸方向预定长度，并且拉制的光纤在其通过管状TEC时被冷却。 此外，冷却器还包括附接到TEC的发热表面的辅助冷却器，用于冷却发射的热量。 因此，冷却器可以提高冷却效果，从而可以在不增加光纤拉制塔的高度的情况下加速光纤的拉伸。

    Apparatus and method for measuring residual stress and photoelastic effect of optical fiber
    10.
    发明授权
    Apparatus and method for measuring residual stress and photoelastic effect of optical fiber 有权
    用于测量光纤的残余应力和光弹效应的装置和方法

    公开(公告)号：US06813959B2

    公开(公告)日：2004-11-09

    申请号：US10434490

    申请日：2003-05-08

    申请人： Dug-Young Kim ,  Yong-Woo Park ,  Un-Chul Paek ,  Mun-Hyun Do

    发明人： Dug-Young Kim ,  Yong-Woo Park ,  Un-Chul Paek ,  Mun-Hyun Do

    IPC分类号： G01L124

    CPC分类号： G01L1/242 ,  G01L5/0047

    摘要： Disclosed is an apparatus for measuring a residual stress and a photoelastic effect of an optical fiber, which includes: a light source; a rotary type optical diffuser distanced from the light source in a predetermined distance for suppressing the spatial coherence of a light radiated in the light source; an optical condenser for condensing the radiated light passed through the optical diffuser into a spot where the optical fiber is located; a polarizer for polarizing the light passed through the optical condenser into a 45° linear polarized light from an axis of the optical fiber; a polarization analyzer, installed at 90° angle with respect to the polariscope and attached closely with the optical fiber, to prevent the penetration by the background image of the optical fiber; an optical fiber strain unit including a strain sensor for straining the optical fiber on the polarization analyzer toward a longitudinal direction and measuring the strain on the optical fiber; an object lens for magnifying the image of the light penetrated through the optical fiber; and a charge coupled device(CCD) array for measuring the penetration variation of the optical fiber caused from the strain caused by the optical fiber strain unit over the optical fiber.