Optical fiber with reduced attenuation loss
    1.
    发明申请
    Optical fiber with reduced attenuation loss 有权
    具有降低衰减损耗的光纤

    公开(公告)号:US20060072889A1

    公开(公告)日:2006-04-06

    申请号:US10512241

    申请日:2002-04-24

    IPC分类号: G02B6/036

    摘要: An optical fiber having an internal glass portion, a first coating layer surrounding the glass portion and a second coating layer surrounding the first coating layer. The first coating layer is formed from a cured polymeric material obtained by curing a radiation curable composition having a radiation curable oligomer having a backbone derived from polypropylene glycol and a dimer acid based polyester polyol. The cured polymeric material has: (a) a hardening temperature (Th) from −10° C. to about −20° C. and a modulus measured at the Th lower than 5.0 MPa; or (b) a hardening temperature (Th) from −20° C. to about −30° C. and a modulus measured at the Th lower than 20.0 MPa; or (c) a hardening temperature (Th) lower than about −30° C. and a modulus measured at the Th lower than 70.0 MPa.

    摘要翻译: 具有内玻璃部分的光纤,围绕玻璃部分的第一涂层和围绕第一涂层的第二涂层。 第一涂层由固化的聚合物材料形成,该聚合材料通过固化具有衍生自聚丙二醇的主链和二聚酸基聚酯多元醇的可辐射固化低聚物的可辐射固化组合物而获得。 固化的聚合物材料具有:(a)从-10℃至约-20℃的硬化温度(Th),在低于5.0MPa的Th下测量的模量; 或(b)-20℃至约-30℃的硬化温度(Th),在低于20.0MPa的Th下测得的模量; 或(c)低于约-30℃的硬化温度(Th)和在低于70.0MPa的Th下测量的模量。

    Optical fiber
    4.
    发明申请
    Optical fiber 有权
    光纤

    公开(公告)号:US20060228083A1

    公开(公告)日:2006-10-12

    申请号:US11442279

    申请日:2006-05-30

    IPC分类号: G02B6/036

    CPC分类号: C03C25/1065 G02B6/02395

    摘要: Optical fiber capable of controlling attenuation losses caused by microbending on the signal transmitted thereby. The optical fiber comprises: a) an internal glass portion; b) a first coating layer of a first polymeric material surrounding said glass portion; and c) a second coating layer of a second polymeric material surrounding said first coating layer, wherein said first polymeric material has a hardening temperature lower than −10° C., an equilibrium tensile modulus lower than 1.5 MPa, wherein said first coating layer has a thickness of from 18 μm to 28 μm and wherein said second coating layer has a thickness of from 10 μm to 20 μm.

    摘要翻译: 光纤能够控制对由此传输的信号的微弯曲引起的衰减损耗。 光纤包括:a)内玻璃部分; b)围绕所述玻璃部分的第一聚合物材料的第一涂层; 和c)围绕所述第一涂层的第二聚合材料的第二涂层,其中所述第一聚合物材料具有低于-10℃的硬化温度,低于1.5MPa的平衡拉伸模量,其中所述第一涂层具有 厚度为18μm至28μm,并且其中所述第二涂层的厚度为10μm至20μm。

    Coated optical fibers
    6.
    发明授权
    Coated optical fibers 有权
    涂层光纤

    公开(公告)号:US07171103B2

    公开(公告)日:2007-01-30

    申请号:US11240397

    申请日:2005-10-03

    IPC分类号: G02B6/00 G02B6/02 G02B6/22

    摘要: A coated optical fiber can have a primary coating and a secondary coating, where the primary coating can have good microbending resistance and is obtained by curing a composition having a high cure speed. In one example, a coated optical fiber can include as optical fiber, a primary coating and a secondary coating. The optical fiber can have an attenuation increase of less than 0.650 dB/km at 1550 nm, with the primary coating having a modulus retention ratio of at least 0.5, a glass transition temperature of −35° C., and where the primary coating is obtained by curing a primary coating composition having a cure dose to attain 95% of the maximum attainable modulus of less than 0.65 J/cm2.

    摘要翻译: 涂覆光纤可以具有初级涂层和二次涂层,其中初级涂层可以具有良好的抗微弯曲性,并且通过固化具有高固化速度的组合物获得。 在一个示例中,涂覆的光纤可以包括作为光纤,初级涂层和二次涂层。 光纤可以在1550nm处具有小于0.650dB / km的衰减增加,其中初级涂层的模量保持率至少为0.5,玻璃化转变温度为-35℃,其中初级涂层为 其通过固化具有固化剂量的初级涂料组合物获得小于0.65J / cm 2的最大可获得模量的95%。