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    Optical fiber and method of manufacturing optical fiber
    1.
    发明授权
    Optical fiber and method of manufacturing optical fiber 有权
    光纤及其制造方法

    公开(公告)号：US08676014B2

    公开(公告)日：2014-03-18

    申请号：US12903798

    申请日：2010-10-13

    申请人： Tetsuya Nakanishi ,  Masaaki Hirano ,  Tetsuya Haruna ,  Maki Ikechi

    发明人： Tetsuya Nakanishi ,  Masaaki Hirano ,  Tetsuya Haruna ,  Maki Ikechi

    IPC分类号： G02B6/02

    CPC分类号： C03B37/02727 ,  C03B2203/19 ,  C03B2203/222 ,  G02B6/02 ,  G02B6/02366 ,  G02B6/03627 ,  G02B6/0365 ,  G02B6/03694

    摘要： An optical fiber having excellent strength that can be manufactured at low cost, as well as a method for making such optical fiber, is provided. An optical fiber 1 is a silica-based optical fiber comprising a core 11, an optical cladding 12 surrounding the core 11, and a jacketing region 13 surrounding the optical cladding 12 and having a uniform composition throughout from the internal circumference to the outer circumference. A compressive strained layer having a residual compressive stress is provided at the outermost circumference of the jacketing region 13.

    摘要翻译： 提供了具有可以低成本制造的优异强度的光纤以及制造这种光纤的方法。 光纤1是包括芯11，围绕芯11的光学包层12和围绕光学包层12并且具有从内周到外周均匀组成的护套区域13的二氧化硅基光纤。 在护套区域13的最外周设有具有残余压应力的压应变层。

    OPTICAL FIBER AND METHOD AND APPARATUS FOR MANUFACTURING OPTICAL FIBER
    2.
    发明申请
    OPTICAL FIBER AND METHOD AND APPARATUS FOR MANUFACTURING OPTICAL FIBER 审中-公开
    光纤和制造光纤的方法和装置

    公开(公告)号：US20120328254A1

    公开(公告)日：2012-12-27

    申请号：US13481226

    申请日：2012-05-25

    申请人： Kenji OKADA

    发明人： Kenji OKADA

    IPC分类号： G02B6/02 ,  B05C11/00

    CPC分类号： B05C5/0241 ,  C03B37/02745 ,  C03B37/032 ,  C03B2203/19 ,  C03B2203/20 ,  C03B2203/36 ,  C03B2205/06 ,  C03C25/106 ,  G02B6/02285

    摘要： An optical fiber including an optical fiber wire is provided. The optical fiber wire has a bare optical fiber portion, to which first elastic torsion is applied, and a coating layer, which coats the bare optical fiber portion and which is formed of curable resin and generates elastic repulsion against resilience occurring in the bare optical fiber portion so that the first elastic torsion applied to the bare optical fiber portion is held. Second elastic torsion is applied to the entire optical fiber configured to include the bare optical fiber portion and the coating layer.

    摘要翻译： 提供了包括光纤线的光纤。 光纤线具有施加第一弹性扭曲的裸光纤部分和涂覆裸光纤部分并且由可固化树脂形成的涂层，并且产生弹性斥力以抵抗在裸光纤中发生的弹性 使得保持施加到裸光纤部分的第一弹性扭转。 对构成为包括裸光纤部分和涂层的整个光纤施加第二弹性扭转。

    METHOD OF MANUFACTURING OPTICAL FIBER
    3.
    发明申请
    METHOD OF MANUFACTURING OPTICAL FIBER 审中-公开
    制造光纤的方法

    公开(公告)号：US20110314873A1

    公开(公告)日：2011-12-29

    申请号：US13226909

    申请日：2011-09-07

    申请人： MINSUK SONG ,  Shinichi Arai

    发明人： MINSUK SONG ,  Shinichi Arai

    IPC分类号： C03B37/075 ,  C03B37/025

    CPC分类号： C03B37/02745 ,  C03B37/032 ,  C03B2203/19 ,  C03B2203/36 ,  C03B2205/06

    摘要： A coating is applied on an optical fiber drawn from a melted tip of an optical-fiber preform. A glass spin is applied to a coated optical fiber by gripping the coated optical fiber with at least a pair of spinning applying rollers arranged in different levels with parallel rotation axes, rotating the spinning applying rollers so that the coated optical fiber is guided in a predetermined direction, and alternately shifting the spinning applying rollers in opposite directions along the rotation axes. The glass spin is applied to the coated optical fiber in a state in which each of the rotation axes is tilted at a predetermined angle from a plane perpendicular to the first direction.

    摘要翻译： 将涂层施加在从光纤预制件的熔融尖端拉出的光纤上。 通过用至少一对以平行的旋转轴线布置在不同水平的纺丝施加辊上夹持涂覆的光纤，将涂覆的光纤施加到涂覆的光纤上，旋转纺丝施加辊使得涂覆的光纤以预定的 方向，并且沿着旋转轴线沿着相反方向交替地移动纺丝施加辊。 玻璃旋转以每个旋转轴线从垂直于第一方向的平面倾斜预定角度的状态施加到涂覆光纤上。

    Detection system and optical fiber for use in such system
    4.
    发明授权
    Detection system and optical fiber for use in such system 有权
    用于这种系统的检测系统和光纤

    公开(公告)号：US07999930B2

    公开(公告)日：2011-08-16

    申请号：US12365417

    申请日：2009-02-04

    申请人： Xin Chen ,  Joohyun Koh ,  Ming-Jun Li ,  Daniel Aloysius Nolan

    发明人： Xin Chen ,  Joohyun Koh ,  Ming-Jun Li ,  Daniel Aloysius Nolan

    IPC分类号： G01N21/00

    CPC分类号： G01L1/242 ,  C03B2203/19 ,  C03B2203/30 ,  C03B2205/06 ,  G01M11/3181 ,  G02B6/02

    摘要： A detection system comprising: (i) an optical fiber, the optical fiber having (a) a length L≧1 km; (b) beat length between 10 m and 100 m; and (c) beat length uniformity over any distance of at least 100 m within the length L is characterized by standard deviation σ, where |σ|≦10 m; (ii) an OTDR coupled to the fiber and including (a) a radiation source providing pulsed radiation to the fiber, (b) a detection system capable of detecting radiation that is backscattered back through the fiber; and (iii) at least one polarizer situated between the fiber and the detector, such that the backscattered radiation passes through the polarizer before reaching the detector.

    摘要翻译： 一种检测系统，包括：（i）光纤，所述光纤具有（a）长度L≥1km; （b）拍摄距离在10米至100米之间; 和（c）在长度L内的至少100米的任何距离上的击穿长度均匀性的特征在于标准偏差＆sgr，其中|＆sgr | |＆nlE; 10m; （ii）耦合到所述光纤的OTDR，并且包括（a）向所述光纤提供脉冲辐射的辐射源，（b）能够检测通过所述光纤反向散射的辐射的检测系统; 和（iii）位于光纤和检测器之间的至少一个偏振器，使得后向散射的辐射在到达检测器之前穿过偏振器。

    Optical fiber drawing and twisting apparatus
    5.
    发明授权
    Optical fiber drawing and twisting apparatus 有权
    光纤拉丝加捻装置

    公开(公告)号：US07966846B2

    公开(公告)日：2011-06-28

    申请号：US12540831

    申请日：2009-08-13

    申请人： Kenji Okada ,  Koichi Harada

    发明人： Kenji Okada ,  Koichi Harada

    IPC分类号： C03B37/029

    CPC分类号： C03B37/032 ,  C03B37/02745 ,  C03B2203/19 ,  C03B2203/36 ,  C03B2205/06

    摘要： An optical fiber twisting apparatus that prevents line distortion in an optical fiber undergoing a drawing process and provides a consistent coating on a bare optical fiber. This optical fiber twisting apparatus includes a twist roller apparatus that having a twist roller that, by imparting a twist to an optical fiber, imparts a twist to a molten portion of an optical fiber preform positioned on an upstream side of the optical fiber, and a support portion that supports the twist roller. The accuracy of the outer circumference of the twist roller when the twist roller is forming a part of the twist roller apparatus is 15 μm or less.

    摘要翻译： 一种光纤加捻装置，其防止经历拉伸工艺的光纤中的线变形，并在裸光纤上提供一致的涂层。 这种光纤加捻装置包括一个加捻辊装置，该加捻辊装置具有一个加捻辊，通过赋予光纤的扭曲，对位于光纤的上游侧的光纤预制件的熔融部分施加扭曲， 支撑扭转辊的支撑部分。 当加捻辊形成加捻辊装置的一部分时，加捻辊的外周的精度为15μm以下。

    Optical fiber having a low polarization mode dispersion and process and apparatus for producing it
    9.
    发明授权
    Optical fiber having a low polarization mode dispersion and process and apparatus for producing it 失效
    具有低偏振模色散的光纤及其制造方法和装置

    公开(公告)号：US07409126B2

    公开(公告)日：2008-08-05

    申请号：US10528836

    申请日：2003-09-22

    申请人： Giacomo Stefano Roba ,  Davide Sarchi ,  Martino Travagnin ,  Alexis Debut

    发明人： Giacomo Stefano Roba ,  Davide Sarchi ,  Martino Travagnin ,  Alexis Debut

    IPC分类号： G02B6/44

    CPC分类号： B65H49/02 ,  C03B37/02745 ,  C03B37/032 ,  C03B37/12 ,  C03B2203/19 ,  C03B2203/20 ,  C03B2203/36 ,  C03B2205/06 ,  G02B6/02285

    摘要： An apparatus for producing a low-PMD optical fiber having a furnace for melting a lower portion of an optical preform; a traction device for pulling an optical fiber from the lower portion of an optical preform; a spinning device for imparting a substantially constant and unidirectional spin to the optical fiber as it is pulled, which causes the fiber to undergo an elastic torsion; a winding device for winding the optical fiber onto a reel; and a twisting device for imparting to the spun optical fiber a unidirectional twist in a direction opposite the elastic torsion, so as to control the residual twist in the optical fiber. A process for producing the fiber, an optical fiber and a cable are also provided.

    摘要翻译： 一种用于生产具有用于熔化光学预型件的下部的炉的低PMD光纤的设备; 用于从光学预型件的下部拉动光纤的牵引装置; 旋转装置，用于在被拉动时使光纤基本上恒定且单向旋转，这导致纤维经受弹性扭转; 用于将光纤缠绕到卷轴上的卷绕装置; 以及用于使纺丝光纤沿与弹性扭转相反的方向赋予单向捻度的扭转装置，以便控制光纤中的残余扭曲。 还提供了用于生产纤维，光纤和电缆的方法。

    System and method for obtaining spin and mechanical twist data during optical fiber draw
    10.
    发明授权
    System and method for obtaining spin and mechanical twist data during optical fiber draw 有权

    公开(公告)号：US06791678B2

    公开(公告)日：2004-09-14

    申请号：US10202560

    申请日：2002-07-23

    申请人： Haiying Huang ,  Zhi Zhou ,  Harry Douglas Garner

    发明人： Haiying Huang ,  Zhi Zhou ,  Harry Douglas Garner

    IPC分类号： G01N2100

    CPC分类号： C03B37/02745 ,  C03B2203/19 ,  C03B2203/36 ,  C03B2205/06 ,  G01M11/088 ,  Y02P40/57

    摘要： A system and method is disclosed for determining information regarding the result of introducing a rotational force on an optical fiber during manufacturing. A rotational deformation of the molten fiber, called spin, is imparted that becomes permanent upon cooling of the fiber. The rotational force also introduces twist on the cooled fiber, which is a non-permanent, mechanical rotation of the fiber. The system and method uses a diameter measuring device that produces a signal corresponding to the fiber's diameter with respect to time. Since the fiber is slightly elliptical in practice, periodic variations in the diameter measurement signal are detected that reflect the rotation imparted into the fiber. The signal is further processed to provide data regarding the effect of the rotations introduced into the fiber, namely the twist and spin present in the fiber.