Submarine optical cable resistant to longitudinal water propagation
    2.
    发明授权
    Submarine optical cable resistant to longitudinal water propagation 失效
    海底光缆耐纵向水传播

    公开(公告)号:US06647187B2

    公开(公告)日:2003-11-11

    申请号:US10055942

    申请日:2002-01-28

    IPC分类号: G02B644

    摘要: A submarine optical cable having a central polymeric buffer tube, said cable being particularly suitable for long-haul repeatered systems. A longitudinal reinforcing element is embedded into the walls of the central polymeric buffer tube which is of relatively small dimensions. The presence of said reinforcing element allows a precise control over the excess fiber length within the buffer tube. This reinforcing element is of relatively small diameter, in order to comply with the requirements of reduced dimensions of the buffer tube. Notwithstanding this relatively small diameter, said longitudinal reinforcing element allows for a good control over the longitudinal shrinkage of the polymeric buffer tube within the submarine cable.

    摘要翻译: 一种具有中心聚合物缓冲管的海底光缆,所述电缆特别适用于长距离重复系统。 纵向增强元件嵌入中心聚合物缓冲管的壁中,其尺寸相对较小。 所述加强元件的存在允许精确地控制缓冲管内的过量纤维长度。 该增强元件的直径相对较小,以符合缓冲管尺寸减小的要求。 尽管直径相对较小,但所述纵向加强元件可以很好地控制海底电缆内的聚合物缓冲管的纵向收缩。

    Telecommunication cable comprising a jointed optical core and method for jointing said core
    3.
    发明申请
    Telecommunication cable comprising a jointed optical core and method for jointing said core 失效
    电信电缆,包括接合的光纤芯和用于连接所述芯的方法

    公开(公告)号:US20060127013A1

    公开(公告)日:2006-06-15

    申请号:US10532718

    申请日:2002-10-30

    IPC分类号: G02B6/44

    摘要: An optical cable having an optical core with a strength member and optical fibers embedded in a thermoplastic material. The optical core has a joint section having substantially the same diameter as the one of the optical core. The joint section has a jointed strength member and a plurality of spliced optical fibers, the jointed portion of the strength member and the spliced portion of the optical fibers being embedded into a cured polymeric material. A method for manufacturing an optical core is also disclosed.

    摘要翻译: 一种光缆,其具有带有加强件的光学芯和嵌入在热塑性材料中的光纤。 光学芯具有与光学核心的直径基本相同的直径的接合部分。 接合部具有接合强度部件和多个接合光纤,强化部件的接合部分和光纤的接合部分嵌入固化的聚合物材料中。 还公开了一种用于制造光学芯的方法。

    Submarine optical cable resistant to longitudinal water propagation
    4.
    发明授权
    Submarine optical cable resistant to longitudinal water propagation 失效
    海底光缆耐纵向水传播

    公开(公告)号:US06681070B2

    公开(公告)日:2004-01-20

    申请号:US10056077

    申请日:2002-01-28

    IPC分类号: G02B644

    摘要: A submarine optical cable resistant to a longitudinal flow of water accidentally penetrated inside it and a method for controlling the longitudinal flow of water inside the cable. The cable has a longitudinal cavity disposed along a deformable elongated hollow body. The longitudinal cavity is suitable dimensioned so that the head losses of the water flowing through the cavity are lower than the head losses of the water flowing inside the buffer tubes. Thus, in case of accidental ingress of water inside the submarine cable, the water flow inside the buffer tubes is prevented from reaching long penetration lengths by the hydrostatic pressure of the water inside the longitudinal cavity acting onto the outer surface of the buffer tube.

    摘要翻译: 潜水电缆耐受纵向水流侵入内部,以及一种控制电缆内水纵向流动的方法。 电缆具有沿着可变形的细长空心体设置的纵向腔。 纵向腔体的尺寸适合于使流过空腔的水的头部损失低于在缓冲管内流动的水的头部损失。 因此,在海底电缆内意外进入水的情况下,通过作用于缓冲管的外表面的纵向空腔内的水的静水压力,防止缓冲管内的水流达到长的穿透长度。

    Dielectric optical fiber cable having improved installation features
    5.
    发明授权
    Dielectric optical fiber cable having improved installation features 有权
    具有改进的安装特征的介质光缆

    公开(公告)号:US07333697B2

    公开(公告)日:2008-02-19

    申请号:US10565634

    申请日:2003-07-25

    IPC分类号: G02B6/44

    CPC分类号: G02B6/4433

    摘要: A telecommunication optical fiber cable and in particular a reduced diameter optical cable with improved installation features for use in the end part of an access telecommunication network. The optical fiber cable has a number of optical fibers; at least a core tube containing the optical fibers; a jacket surrounding the core tube; and at least one strength rod spaced from the central axis, the cable having a twisting stiffness G*Jp, wherein G is the elastic shear modulus; and Jp is the polar moment of inertia of a cable section, wherein the twisting stiffness G*Jp is lower than or equal to 0.10 Nm2, preferably lower than or equal to 0.05 Nm2, and more preferably lower than or equal to 0.02 Nm2. The cable is profitably installable by a blown method.

    摘要翻译: 电信光纤电缆,特别是具有改进的安装特征的减小直径的光缆,用于接入电信网络的端部。 光缆具有多条光纤; 至少包含光纤的芯管; 围绕核心管的护套; 以及与所述中心轴线间隔开的至少一个强度棒,所述电缆具有扭转刚度G * J P P,其中G是弹性剪切模量; 并且J P是电缆部分的极性转动惯量,其中扭转刚度G * J

    小于或等于0.10Nm 2 / 优选低于或等于0.05Nm 2,更优选低于或等于0.02Nm 2。 电缆可以通过吹制方式有利地安装。

    Dielectric optical fiber cable having improved installation features
    6.
    发明申请
    Dielectric optical fiber cable having improved installation features 有权
    具有改进的安装特征的介质光缆

    公开(公告)号:US20070140631A1

    公开(公告)日:2007-06-21

    申请号:US10565634

    申请日:2003-07-25

    IPC分类号: G02B6/44

    CPC分类号: G02B6/4433

    摘要: A telecommunication optical fiber cable and in particular a reduced diameter optical cable with improved installation features for use in the end part of an access telecommunication network. The optical fiber cable has a number of optical fibers; at least a core tube containing the optical fibers; a jacket surrounding the core tube; and at least one strength rod spaced from the central axis, the cable having a twisting stiffness G*Jp, wherein G is the elastic shear modulus; and Jp is the polar moment of inertia of a cable section, wherein the twisting stiffness G*Jp is lower than or equal to 0.10 Nm2, preferably lower than or equal to 0.05 Nm2, and more preferably lower than or equal to 0.02 Nm2. The cable is profitably installable by a blown method.

    摘要翻译: 电信光纤电缆,特别是具有改进的安装特征的减小直径的光缆,用于接入电信网络的端部。 光缆具有多条光纤; 至少包含光纤的芯管; 围绕核心管的护套; 以及与所述中心轴线间隔开的至少一个强度棒,所述电缆具有扭转刚度G * J P P,其中G是弹性剪切模量; 并且J P是电缆部分的极性转动惯量,其中扭转刚度G * J

    小于或等于0.10Nm 2 / 优选低于或等于0.05Nm 2,更优选低于或等于0.02Nm 2。 电缆可以通过吹制方式有利地安装。

    Telecommunication optical cable for gas pipeline applications having built-in leakage detecting device
    7.
    发明授权
    Telecommunication optical cable for gas pipeline applications having built-in leakage detecting device 失效
    用于气体管道应用的电信光缆,具有内置的漏电检测装置

    公开(公告)号:US07706640B2

    公开(公告)日:2010-04-27

    申请号:US10576606

    申请日:2003-10-23

    IPC分类号: G02B6/00 G01J1/04

    摘要: A telecommunication fiber optic cable for gas pipeline application has a built-in leakage detecting device. The cable has an optical core including a number of telecommunication optical fibers, an outer jacket covering the optical core, and one or more gas leakage detector optical fibers. One or more gas leakage detector optical fibers are enclosed within the outer jacket. Preferably, the cable has a linearly extending rod reinforcing system having strength rods that force the cable to bend in a preferential bending place. Preferably, the leakage detector optical fibers are located at, or close to, a plane that is substantially orthogonal to the preferential bending plane and passing through the cable neutral axis.

    摘要翻译: 用于气体管道应用的电信光缆具有内置的漏电检测装置。 电缆具有包括多个通信光纤的光纤芯,覆盖光纤芯的外护套和一个或多个气体泄漏检测器光纤。 一个或多个气体泄漏检测器光纤被封装在外护套内。 优选地,电缆具有线性延伸的杆加强系统,其具有强制杆,其强制电缆在优先弯曲的位置弯曲。 优选地,泄漏检测器光纤位于基本上正交于优先弯曲平面并穿过电缆中性轴线的平面处或附近。

    PROCESS AND APPARATUS FOR MANUFACTURING AN OPTICAL CABLE
    8.
    发明申请
    PROCESS AND APPARATUS FOR MANUFACTURING AN OPTICAL CABLE 审中-公开
    制造光缆的工艺和装置

    公开(公告)号:US20100043953A1

    公开(公告)日:2010-02-25

    申请号:US12556837

    申请日:2009-09-10

    IPC分类号: B29D11/00 B29C47/92

    摘要: An optical cable is manufactured in a single continuous process starting directly from at least an optical preform, by means of a fiber/cable integrated manufacturing line including a fiber(s) drawing assembly for the production of one or more optical fibers from respective optical preforms, and a cabling assembly for producing the optical cable from the optical fiber(s), the cabling assembly comprising a fiber buffering assembly for the application of a loose or tight coating to the optical fiber(s), and a strengthening and sheathing sub-assembly for applying one or more reinforcing and protective layers to the buffered optical fiber(s).

    摘要翻译: 光缆由单一的连续工艺制造,直接从至少一个光学预型件开始,通过一根纤维/电缆集成的生产线包括用于从相应的光学预成型件生产一根或多根光纤的光纤拉丝组件 以及用于从所述光纤生产光缆的布线组件,所述布线组件包括用于向所述光纤施加松散或紧密涂层的光纤缓冲组件,以及强化和护套子系统, 用于将一个或多个增强和保护层施加到缓冲光纤的组件。

    Telecommunication optical cable for gas pipeline applications having built-in leakage detecting device
    9.
    发明申请
    Telecommunication optical cable for gas pipeline applications having built-in leakage detecting device 失效
    用于气体管道应用的电信光缆,具有内置的漏电检测装置

    公开(公告)号:US20070081773A1

    公开(公告)日:2007-04-12

    申请号:US10576606

    申请日:2003-10-23

    IPC分类号: G02B6/44

    摘要: A telecommunication fiber optic cable for gas pipeline application has a built-in leakage detecting device. The cable has an optical core including a number of telecommunication optical fibers, an outer jacket covering the optical core, and one or more gas leakage detector optical fibers. One or more gas leakage detector optical fibers are enclosed within the outer jacket. Preferably, the cable has a linearly extending rod reinforcing system having strength rods that force the cable to bend in a preferential bending place. Preferably, the leakage detector optical fibers are located at, or close to, a plane that is substantially orthogonal to the preferential bending plane and passing through the cable neutral axis.

    摘要翻译: 用于气体管道应用的通信光缆具有内置的泄漏检测装置。 电缆具有包括多个通信光纤的光纤芯,覆盖光纤芯的外护套和一个或多个气体泄漏检测器光纤。 一个或多个气体泄漏检测器光纤被封装在外护套内。 优选地,电缆具有线性延伸的杆加强系统,其具有强制杆,其强制电缆在优先弯曲的位置弯曲。 优选地,泄漏检测器光纤位于基本上正交于优先弯曲平面并穿过电缆中性轴线的平面处或附近。

    Radiation curable colored coating composition
    10.
    发明授权
    Radiation curable colored coating composition 有权
    可辐射固化着色涂料组合物

    公开(公告)号:US06797740B2

    公开(公告)日:2004-09-28

    申请号:US10321892

    申请日:2002-12-17

    IPC分类号: C09D1100

    摘要: The invention relates to a radiation curable colored coating composition for coloring a coated optical fiber wherein the coating, when disposed and cured to surround an optical fiber coated with an internal coating, and when said colored fiber is coated with a matrix material and assembled into an optical fiber ribbon, said colored coating has a degree of adhesion to the internal coating which is higher than the degree of adhesion to the matrix material and said optical fiber assembled into said optical fiber ribbon shows, upon aging for at least two weeks in water at 60° C., an increase in the attenuation of the transmitted signal at 1550 nm of less than 0.05 db/km with respect to the attenuation of the assembled optical fiber measured before aging. The invention also relates to said colored coating composition when used in an optical fiber ribbon.

    摘要翻译: 本发明涉及一种用于使涂覆光纤着色的可辐射固化的着色涂料组合物,其中当涂布被设置和固化以包围涂覆有内部涂层的光纤时,并且当所述有色纤维涂覆有基质材料并组装成 光纤带,所述着色涂层对内部涂层具有一定程度的粘附程度,其高于对基体材料的粘附程度,并且组装到所述光纤带中的所述光纤在水中老化至少两周后, 相对于老化前测量的组装光纤的衰减,在1550nm处的发射信号的衰减的增加小于0.05db / km。 本发明还涉及当用在光纤带中时所述着色涂料组合物。