Measuring and controlling the thickness of a conductive coating on an
optical fiber
    1.
    发明授权
    Measuring and controlling the thickness of a conductive coating on an optical fiber 失效
    测量和控制光纤上导电涂层的厚度

    公开(公告)号:US5057781A

    公开(公告)日:1991-10-15

    申请号:US387260

    申请日:1989-07-31

    IPC分类号: C03C25/12

    CPC分类号: C03C25/12

    摘要: A method of for manufacturing a coated optical fiber includes depositing a conductive coating on the optical fiber and measuring a value of conductance of that coating. Featured within the manufacturing method is a method for measuring the thickness of the conductive coating on an insulator, e.g., carbon on an optical fiber, including the following steps. An electromagnetic field is established by an input signal. The conductively coated insulator is moved through the energized electromagnetic field. The conductive coating on the insulator is oriented with respect to the electric field so that their interaction increases transmission loss from input to output. An output signal is extracted from the electromagnetic field. From changes in the output signal with respect to a predetermined standard, or reference, the conductance and the thickness of the conductive coating are determined. From the measured thickness of the coating, a control signal is generated for dynamically controlling one or more of the process parameters for depositing the coating on the insulator from a precursor gas. The coated insulator continuously moves through the apparatus without any physical contact. No interruption of the production process occurs.

    摘要翻译: 一种制造涂覆光纤的方法包括在光纤上沉积导电涂层并测量该涂层的电导值。 该制造方法中的特征是用于测量绝缘体上的导电涂层的厚度的方法,例如光纤上的碳,包括以下步骤。 通过输入信号建立电磁场。 导电涂覆的绝缘体移动通过通电的电磁场。 绝缘体上的导电涂层相对于电场定向,使得它们的相互作用增加了从输入到输出的传输损耗。 从电磁场中提取输出信号。 根据输出信号相对于预定标准或参考的变化,确定导电涂层的电导和厚度。 从测量的涂层厚度,产生控制信号以动态地控制一个或多个工艺参数,用于从前体气体沉积绝缘体上的涂层。 涂覆的绝缘体连续移动通过设备而没有任何物理接触。 不会中断生产过程。

    Method of making a carbon coated optical fiber
    3.
    发明授权
    Method of making a carbon coated optical fiber 失效
    制造碳涂层光纤的方法

    公开(公告)号:US5013130A

    公开(公告)日:1991-05-07

    申请号:US387261

    申请日:1989-07-31

    IPC分类号: C03C25/12

    CPC分类号: C03C25/12 Y10T428/2913

    摘要: A process for manufacturing an optical fiber includes the steps of heating and drawing material from a hot optical fiber preform; exposing the hot optical fiber to a compound containing carbon for depositing a carbon coating on the moving optical fiber; measuring an electrical property of the carbon coating; and in response to the measured electrical property, changing a parameter of the process for controlling a characteristic of the carbon coating on the moving optical fiber. Featured within the manufacturing method is a method for measuring the thickness of the carbon coating on the moving optical fiber. From the measured thickness of the carbon coating, a control signal is generated for changing one or more of the process parameters for depositing the carbon coating on the optical fiber from a precursor gas. The coated optical fiber continuously moves through the process without any physical contact. No interruption of the production process occurs.

    摘要翻译: 一种制造光纤的方法包括从热光纤预制棒加热和拉伸材料的步骤; 将热光纤暴露于含有碳的化合物,用于在移动光纤上沉积碳涂层; 测量碳涂层的电性能; 并且响应于测量的电性能,改变用于控制移动光纤上的碳涂层的特性的处理的参数。 该制造方法中的特征在于测量移动光纤上的碳涂层的厚度的方法。 从所测量的碳涂层的厚度,产生控制信号,用于改变用于从前体气体沉积在光纤上的碳涂层的一个或多个工艺参数。 涂覆的光纤不间断地穿过该过程而没有任何物理接触。 不会中断生产过程。

    Device and method for improved long term signal attenuation performance of fiber optic cable and apparatus interfaces
    4.
    发明授权
    Device and method for improved long term signal attenuation performance of fiber optic cable and apparatus interfaces 有权
    改善光纤电缆和设备接口的长期信号衰减性能的装置和方法

    公开(公告)号:US06577795B2

    公开(公告)日:2003-06-10

    申请号:US10056139

    申请日:2002-01-24

    IPC分类号: G02B644

    摘要: The present invention is directed to a method and apparatus for improved long term signal attenuation performance of fiber optic cable and cable and/or fiber interface components. The improved long term signal attenuation performance of the fiber optic cable is achieved by introducing an additive that will occupy defect sites in the optical fibers, such as deuterium, into materials used in the fiber optic cable, either prior to or during the assembly process. The fiber optic cable casing structure then acts as a reaction chamber so that the additive which has been introduced during the fiber optic cable assembly process will react with the optical fibers so as to occupy defect site locations in the optical fibers. For example, the reaction of silica defect sites with deuterium improves the long term stability of the attenuation characteristics of the fiber optic cables because the number of defect sites available for hydrogen molecules to react with are reduced. According to one exemplary embodiment of the invention deuterium is introduced into a fill material used in the fiber optic cable. Further, the material into which deuterium is introduced may be an embedding material into which the optical fibers are embedded within the casing of the fiber optic cable. The deuterium may be introduced into the material by dissolving the deuterium into the material or bubbling the material with deuterium. In another exemplary embodiment of the invention, deuterium is introduced into a fiber optic apparatus housing, which contains fiber optic components, prior to sealing the housing. According to a still further exemplary embodiment of the invention, deuterium is introduced into the fiber optic cable by exposing the optical fibers to deuterium prior to assembling the optical fibers into a fiber optic cable.

    摘要翻译: 本发明涉及用于改善光纤电缆和电缆和/或光纤接口部件的长期信号衰减性能的方法和装置。 光纤电缆的改进的长期信号衰减性能通过在组装过程之前或组装过程中引入将在光纤中诸如氘等光纤中的缺陷部位引入到光纤电缆中使用的材料来实现。 然后,光纤电缆外壳结构用作反应室,使得在光纤电缆组装过程中引入的添加剂将与光纤反应,以占据光纤中的缺陷位置位置。 例如,二氧化硅缺陷位点与氘的反应改善了光纤电缆的衰减特性的长期稳定性,因为可以使氢分子反应的缺陷位点的数量减少。 根据本发明的一个示例性实施例,将氘引入用于光纤电缆的填充材料中。 此外,引入氘的材料可以是将光纤嵌入到光纤电缆的外壳内的嵌入材料。 可以通过将氘溶解到材料中或用氘气鼓泡材料将氘引入材料中。 在本发明的另一示例性实施例中,在密封壳体之前,将氘引入到包含光纤部件的光纤设备外壳中。 根据本发明的另一示例性实施例,在将光纤组装成光纤电缆之前,通过将光纤暴露于氘将氘引入光纤电缆。

    Device and method for improved long term signal attenuation performance of fiber optic cable and apparatus interfaces
    5.
    发明授权
    Device and method for improved long term signal attenuation performance of fiber optic cable and apparatus interfaces 有权
    改善光纤电缆和设备接口的长期信号衰减性能的装置和方法

    公开(公告)号:US06496627B1

    公开(公告)日:2002-12-17

    申请号:US09616957

    申请日:2000-07-14

    IPC分类号: G02B644

    摘要: The present invention is directed to a method and apparatus for improved long-term signal attenuation performance of fiber optic and/or fiber interface components. The improved long-term signal attenuation performance is achieved by introducing an additive such as deuterium into materials used in manufacturing the fiber optic cable. The fiber optic cable casing structure may then act as a reaction chamber so that the additive will react with the optical fibers and occupy defect site locations in the optical fibers. With the additive occupying defect sites in the optical fibers, it mitigates the presence of hydrogen into those same defect sites.

    摘要翻译: 本发明涉及用于改善光纤和/或光纤接口部件的长期信号衰减性能的方法和装置。 改进的长期信号衰减性能通过将诸如氘的添加剂引入用于制造光纤电缆的材料中来实现。 然后,光缆套管结构可以用作反应室,使得添加剂将与光纤反应并占据光纤中的缺陷位置位置。 由于添加剂占据光纤中的缺陷部位,因此可以将氢气的存在减轻到相同的缺陷部位。