Plastic optical fiber, plastic optical fiber preform and method for manufacturing preform
    21.
    发明申请
    Plastic optical fiber, plastic optical fiber preform and method for manufacturing preform 审中-公开
    塑料光纤,塑料光纤预制棒和预制棒的制造方法

    公开(公告)号:US20050117869A1

    公开(公告)日:2005-06-02

    申请号:US10823861

    申请日:2004-04-14

    摘要: The present invention provides a plastic optical fiber, which enables the distributions of refractive indices to be adjusted easily, and a method for manufacturing a plastic optical fiber perform. The plastic optical fiber perform includes a substrate having one or more holes, and one or more materials provided in the holes for a refractive index adjustment purpose. The distributions of refractive indices of the optical fiber preform are manipulated by adjusting the arrangement types, distributions, and the number of holes formed in the substrate and refractive indices of the materials used for refractive index adjustment.

    摘要翻译: 本发明提供一种塑料光纤,其能够容易地调节折射率的分布,并且制造塑料光纤的方法。 塑料光纤执行包括具有一个或多个孔的基板和设置在用于折射率调整目的的孔中的一种或多种材料。 通过调整衬底中形成的孔的布置类型,分布和数量以及用于折射率调节的材料的折射率来调节光纤预制棒的折射率分布。

    Apparatus and method for fabricating plastic optical fiber
    22.
    发明申请
    Apparatus and method for fabricating plastic optical fiber 审中-公开
    塑料光纤制造装置及方法

    公开(公告)号:US20050110173A1

    公开(公告)日:2005-05-26

    申请号:US10824239

    申请日:2004-04-14

    摘要: An apparatus and method for fabricating a plastic optical fiber are disclosed. In the fabricating apparatus, a first container is provided to separately contain the refractive index control materials including at least a core material. The refractive control materials have different refractive indices. A second container contains a clad material having a different refractive index from the core material. A crosshead flows down the refractive index control materials and the clad material introduced from the first and second containers by physical extrusion, while restricting the flow of the refractive index control materials and clad materials to a predetermined radius. A rotator mixes the extruded refractive index control and clad materials concentrically perpendicular to an extrusion direction.

    摘要翻译: 公开了一种用于制造塑料光纤的装置和方法。 在制造装置中,提供第一容器以分开容纳至少包括芯材料的折射率控制材料。 折射控制材料具有不同的折射率。 第二容器包含具有与芯材料不同的折射率的复合材料。 十字头通过物理挤出将折射率控制材料和从第一和第二容器引入的包层材料向下流动,同时将折射率控制材料和包覆材料的流动限制在预定半径。 旋转体将挤出的折射率控制和包覆材料与挤出方向垂直地同心地混合。

    Optical fiber coating device having cooler
    23.
    发明授权
    Optical fiber coating device having cooler 失效
    具有冷却器的光纤涂层装置

    公开(公告)号:US06841004B2

    公开(公告)日:2005-01-11

    申请号:US09756340

    申请日:2001-01-08

    CPC分类号: C03C25/12

    摘要: Disclosed is an optical fiber coating device for coating the outer circumference of the optical fiber with the coating material, in which the coating device is provided with and a gas provider for providing an environmental gas within the coating device, and a cooler for cooling down the environmental gas provided to the coater from the gas provider.

    摘要翻译: 本发明公开了一种光纤涂敷装置,其特征在于,所述光纤涂布装置具有涂布装置和所述涂料装置内的环境气体用气体供给装置, 气体供应商提供给涂布机的环境气体。

    Method of fabricating an optical fiber preform and drawing of an optical fiber
    25.
    发明申请
    Method of fabricating an optical fiber preform and drawing of an optical fiber 审中-公开
    光纤预制棒的制造方法和光纤的拉制

    公开(公告)号:US20050223749A1

    公开(公告)日:2005-10-13

    申请号:US10942223

    申请日:2004-09-16

    摘要: A method of fabricating an optical fiber preform using an overcladding device and an optical-fiber-drawing method are provided. The overcladding device includes first and second chucks, an annular oxygen-hydrogen burner, a furnace, and a carriage for reciprocating between the first and second chucks positioned on a shelf, and a vacuum pump coupled to one of the chucks. According to the preform-fabricating method, primary and secondary preforms fixed to the first and second chucks are leveled respectively. The primary preform is inserted coaxially into the secondary preform. The secondary preform is pre-heated using the furnace and heated using the oxygen-hydrogen burner, thus softening the preforms. A first end of the secondary preform is sealed by heating the first end using the furnace, and the primary and secondary preforms are collapsed by forming a negative-pressure vacuum state inside the secondary preform through a second end of the secondary preform.

    摘要翻译: 提供了使用外包装置制造光纤预制件的方法和光纤拉伸方法。 外包装装置包括第一和第二卡盘,环形氧氢燃烧器,炉子和用于在定位在搁架上的第一和第二卡盘之间往复运动的托架,以及联接到卡盘之一的真空泵。 根据预制件制造方法,固定在第一和第二卡盘上的一次和二次预成型件分别平整。 初级预制件同轴地插入次级预制件中。 使用炉子对二次预制件进行预热,并使用氧 - 氢燃烧器加热,从而软化预制件。 通过使用炉加热第一端来密封二次预制件的第一端,并且通过在次级预制件的第二端在第二预制件内部形成负压真空状态来使第一和第二预成型件折叠。

    Optical fiber drawing system for non-contact control of polarization mode dispersion of optical fiber
    26.
    发明授权
    Optical fiber drawing system for non-contact control of polarization mode dispersion of optical fiber 失效
    光纤拉伸系统用于非接触式控制光纤偏振模色散

    公开(公告)号:US06945079B2

    公开(公告)日:2005-09-20

    申请号:US10619786

    申请日:2003-07-15

    摘要: Disclosed is a system for drawing an optical fiber for controlling polarization mode dispersion. A furnace is provided for uniformly heating an optical fiber preform in the drawing system mounted to an optical fiber draw tower. The furnace comprises: (a) a main body; (b) a sub-body placed coaxially with the main body and having a diameter smaller than that of the main body; and (c) an upper gas feeding section over the main body, wherein the upper gas feeding section includes a first hollow rotary body having at least one slit in the inner surface thereof along the longitudinal direction of an optical fiber and at least one opening extended in the direction of the center, whereby a gas artificially/periodically creates non-contact polarization to the optical fiber by the first hollow rotary body. Effective non-contact control can be carried out about polarization mode dispersion of the optical fiber.

    摘要翻译: 公开了一种用于绘制用于控制偏振模色散的光纤的系统。 提供了一种用于在安装到光纤拉制塔的绘图系统中均匀加热光纤预制件的炉子。 该炉包括:(a)主体; (b)与主体同轴放置且直径小于主体的直径的子体; 以及(c)主体上方的上部供气部,其中,所述上部气体供给部包括第一中空旋转体,所述第一中空旋转体在其内表面中沿着光纤的长度方向具有至少一个狭缝,并且至少一个开口延伸 在中心的方向上,由此人造/周期性地通过第一中空旋转体向光纤产生非接触极化。 关于光纤的偏振模色散可以进行有效的非接触控制。

    Optical fiber for metro network
    27.
    发明申请
    Optical fiber for metro network 有权
    城域网光纤

    公开(公告)号:US20050175303A1

    公开(公告)日:2005-08-11

    申请号:US10918570

    申请日:2004-08-13

    摘要: An optical fiber for an optical network is disclosed. The optical fiber includes a core having a core region having a first refractive index N1, and a refractive index depressed region surrounding the core region and having a second refractive index N2 that is lower than the first refractive index. A clad surrounds the core and having a third refractive index N4. The optical fiber has a zero-dispersion wavelength that is not less than 1555 nm and positioned in a wavelength range which does not exceed L-band. The optical fiber has negative dispersion values in C-band and positive dispersion values in L-band.

    摘要翻译: 公开了一种用于光网络的光纤。 光纤包括具有第一折射率N 1 1核心区域的核心和围绕核心区域并具有第二折射率N 1/2的折射率凹陷区域, 低于第一折射率。 包层围绕芯并具有第三折射率N 4。 该光纤具有不小于1555nm的零色散波长并且位于不超过L波段的波长范围内。 光纤在C波段具有负色散值,在L波段中具有正色散值。

    Cooler of optical fiber draw tower
    30.
    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

    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。