Optical fiber with reduced attenuation loss
    2.
    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。