Water-blocked optical cable and process for the production thereof
    1.
    发明授权
    Water-blocked optical cable and process for the production thereof 有权
    防水光缆及其生产方法

    公开(公告)号:US09279952B2

    公开(公告)日:2016-03-08

    申请号:US12947544

    申请日:2010-11-16

    IPC分类号: G02B6/04 G02B6/44 G02B6/10

    CPC分类号: G02B6/4494 G02B6/441

    摘要: An optical cable for communication includes at least one retaining element blocked with respect to the water propagation as well as a process for manufacturing such an optical cable. The optical cable includes, in addition to the retaining element, at least two transmission elements housed within the retaining element and a water swellable yarn housed within the retaining element. The water swellable yarn is selected according to the following equation: V w V TF = k V t + R ( I ) in which Vw is the volume of the water swellable yarn after swelling upon contact with water; VTF is the total free volume in the retaining element; k is a constant≧180; R is a constant≧1.4; and Vt is the free volume per each transmission element. Advantageously, the optical cable is water-blocked and the water swellable yarn does not induce microbending effects on the transmission elements.

    摘要翻译: 用于通信的光缆包括至少一个相对于水传播阻挡的保持元件以及用于制造这种光缆的工艺。 除了保持元件之外,光缆还包括容纳在保持元件内的至少两个传输元件和容纳在保持元件内的水可溶胀纱线。 水溶胀性纱线根据以下等式选择:V w V TF = k V t + R(I)其中Vw是在与水接触后膨胀后的水溶胀纱线的体积; VTF是保持元件中的总自由体积; k是常数≧180; R为常数≧1.4; Vt是每个传输元件的自由音量。 有利地,光缆被水封闭,并且水可溶胀纱线不会对传输元件引起微弯曲效应。

    Water-Blocked Optical Cable and Process for the Production Thereof
    3.
    发明申请
    Water-Blocked Optical Cable and Process for the Production Thereof 有权
    水封式光缆及其生产工艺

    公开(公告)号:US20080267569A1

    公开(公告)日:2008-10-30

    申请号:US11666757

    申请日:2004-11-05

    IPC分类号: G02B6/44 C03B37/028

    CPC分类号: G02B6/4494 G02B6/441

    摘要: An optical cable for communication includes at least one retaining element blocked with respect to the water propagation as well as a process for manufacturing such an optical cable. The optical cable includes, in addition to the retaining element, at least two transmission elements housed within the retaining element and a water swellable yarn housed within the retaining element. The water swellable yarn is selected according to the following equation: V w V TF = k V t + R ( 1 ) in which VW is the volume of the water swellable yarn after swelling upon contact with water; VTF is the total free volume in the retaining element; k is a constant ≧180; R is a constant ≧1.4; and Vt is the free volume per each transmission element. Advantageously, the optical cable is water-blocked and the water swellable yarn does not induce microbending effects on the transmission elements.

    摘要翻译: 用于通信的光缆包括至少一个相对于水传播阻挡的保持元件以及用于制造这种光缆的工艺。 除了保持元件之外,光缆还包括容纳在保持元件内的至少两个传输元件和容纳在保持元件内的水可溶胀纱线。 根据以下公式选择水可溶胀纱线: MFRAC> = k > + R 1 其中V 是水的体积 与水接触后膨胀的纱线; V TF是保持元件中的总自由体积; k是常数> = 180; R是常数> = 1.4; V T是每个传动元件的自由体积。 有利地,光缆被水封闭,并且水可溶胀纱线不会对传输元件引起微弯曲效应。

      Telecommunication loose tube optical cable with reduced diameter
      4.
      发明授权
      Telecommunication loose tube optical cable with reduced diameter 有权
      电线松套管光缆直径减小

      公开(公告)号:US07373057B2

      公开(公告)日:2008-05-13

      申请号:US10573894

      申请日:2003-09-30

      IPC分类号: G02B6/44

      摘要: An optical fiber cable has a highly reduced diameter. The cable has a central strength member; a number of tubes containing loosely arranged optical fibers, each tube having a thickness, and each optical fiber having a coating; and a protective outer jacket, wherein the filling coefficient of optical fibers in at least one loose tube is ≧45°/0. The tubes are made of a material having an elasticity modulus ≧700 MPa; and the optical fibers are SM-R fibers having a microbending sensitivity ≦4.0 dB·km−1/g·mm−1 at a temperature of about −30° C. to +60° C. at about 1550 nm.

      摘要翻译: 光纤电缆的直径大大降低。 电缆具有中心强度构件; 包含松散布置的光纤的多个管,每个管具有厚度,并且每个光纤具有涂层; 和保护外护套,其中至少一个松套管中的光纤的填充系数> 45°/ 0。 管由具有弹性模量> = 700MPa的材料制成; 并且光纤是在约-30℃的温度下具有微弯曲灵敏度<= 4.0 DB.KM / g.mm -1的SM-R纤维 在约1550nm至+ 60℃。

      Telecommunication cable equipped with microstructured optical fibres
      5.
      发明授权
      Telecommunication cable equipped with microstructured optical fibres 有权
      配有微结构光纤的电信电缆

      公开(公告)号:US08265437B2

      公开(公告)日:2012-09-11

      申请号:US12226901

      申请日:2008-09-19

      IPC分类号: G02B6/44

      摘要: Telecommunication cable comprising at least one microstructured optical fiber comprising a core region and a cladding region surrounding the core region, the cladding region comprising an annular void-containing region comprised of randomly arranged voids, the core region including doped silica to provide a positive refractive index relative to pure silica; and at least one protecting layer provided around said optical fiber, the protecting layer being made of a polymeric material having a low ultimate elongation.

      摘要翻译: 电信电缆包括至少一个微结构化光纤,其包括芯区域和围绕芯区域的包层区域,所述包层区域包括由随机排列的空隙组成的环形空隙容纳区域,所述芯区域包括掺杂二氧化硅以提供正折射率 相对于纯二氧化硅; 以及设置在所述光纤周围的至少一个保护层,所述保护层由具有低极限伸长率的聚合材料制成。

      Telecommunication Cable Equipped with Microstructured Optical Fibres
      6.
      发明申请
      Telecommunication Cable Equipped with Microstructured Optical Fibres 有权
      配有微结构光纤的电信电缆

      公开(公告)号:US20110170836A1

      公开(公告)日:2011-07-14

      申请号:US12226901

      申请日:2008-09-19

      IPC分类号: G02B6/44 G02B6/02

      摘要: Telecommunication cable comprising at least one microstructured optical fibre comprising a core region and a cladding region surrounding the core region, the cladding region comprising an annular void-containing region comprised of randomly arranged voids, the core region including doped silica to provide a positive refractive index relative to pure silica; and at least one protecting layer provided around said optical fibre, the protecting layer being made of a polymeric material having a low ultimate elongation.

      摘要翻译: 电信电缆包括至少一个微结构化光纤,其包括芯区域和围绕芯区域的包层区域,所述包层区域包括由随机排列的空隙组成的环形空隙容纳区域,所述芯区域包括掺杂二氧化硅以提供正折射率 相对于纯二氧化硅; 以及设置在所述光纤周围的至少一个保护层,所述保护层由具有低极限伸长率的聚合材料制成。

      Submarine optical cable resistant to longitudinal water propagation
      7.
      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。

      Microbundle optical cable
      8.
      发明授权
      Microbundle optical cable 有权
      Microbundle光缆

      公开(公告)号:US09188755B2

      公开(公告)日:2015-11-17

      申请号:US13515659

      申请日:2009-12-23

      IPC分类号: G02B6/00 G02B6/44

      摘要: A microbundle optical cable such as, a riser cable, includes an outer jacket and a plurality of microbundles housed in the outer jacket. At least one of the microbundles includes an optical fiber ribbon enclosed in a microbundle coating. The at least one microbundle includes a longitudinal axis and a cross-section taken on a plane substantially perpendicular to the longitudinal axis. The cross-section may include a first dimension and a second dimension. The first dimension is higher than the second dimension. Therefore, the cross-section shape is an elongated cross shape.

      摘要翻译: 诸如提升板电缆的微捆光缆包括外护套和容纳在外护套中的多个微束。 微束中的至少一个包括封装在微束涂层中的光纤带。 所述至少一个微束包括纵向轴线和在基本上垂直于所述纵向轴线的平面上截取的横截面。 横截面可以包括第一尺寸和第二尺寸。 第一维度高于第二维度。 因此,横截面形状是细长的十字形状。

      Fire resistant optical cable
      9.
      发明授权
      Fire resistant optical cable 有权
      防火光缆

      公开(公告)号:US09151919B2

      公开(公告)日:2015-10-06

      申请号:US13821770

      申请日:2010-09-10

      IPC分类号: G02B6/44 H01B7/295

      摘要: A fire resistant optical cable includes: a plurality of optical fibers; at least one tubular layer of a ceramifiable material surrounding the plurality of optical fibers; and at least one flame shielding layer surrounding the tubular layer. The tubular layer of the ceramifiable material is able to mechanically protect the optical fibers not only during heating but also when the fire is extinguished, since it forms a sufficiently robust layer to withstand the mechanical stresses caused by the collapsing of the materials still surrounding the cable, especially in the transition portions between hot and cold zones. The tubular layer of the ceramifiable material is protected by means of at least one flame shielding layer which prevents the flames from directly acting on the ceramifiable material.

      摘要翻译: 防火光缆包括:多根光纤; 围绕所述多根光纤的可陶瓷材料的至少一个管状层; 以及围绕所述管状层的至少一个火焰屏蔽层。 可陶瓷材料的管状层不仅能够在加热期间机械地保护光纤,而且能够在火熄灭时进行机械保护,因为它形成足够坚固的层,以承受由仍然围绕电缆的材料塌陷引起的机械应力 ,特别是在热区和冷区之间的过渡部分。 可陶瓷材料的管状层通过至少一个阻燃火焰直接作用于可陶瓷材料的火焰屏蔽层来保护。