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。

    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。

    Method and device for vaporizing a liquid reactant in manufacturing a glass preform
    7.
    发明申请
    Method and device for vaporizing a liquid reactant in manufacturing a glass preform 失效
    用于在制造玻璃预制件时蒸发液体反应物的方法和装置

    公开(公告)号:US20060010922A1

    公开(公告)日:2006-01-19

    申请号:US10516170

    申请日:2002-06-28

    IPC分类号: C03B37/018

    摘要: A method and device for vaporizing a liquid reactant. A vaporizing plate having a top surface defines a liquid flow channel, the channel being laterally delimited by edges having a height greater than a minimum thickness of liquid reactant required to generate vapor under film or nucleate boiling regime. A heating system is associated to the vaporizing plate for heating the liquid reactant over a minimum temperature required to generate vapor under nucleate or, preferably, film boiling regime. A cap covers the vaporizing plate to collect the vapor at a predetermined pressure and provided with a vapor exit and a liquid feeder feeds the liquid reactant onto the vaporizing plate.

    摘要翻译: 一种用于蒸发液体反应物的方法和装置。 具有顶表面的蒸发板限定液体流动通道,该通道由边缘侧向限定,该边缘的高度大于在膜或成核沸腾状态下产生蒸气所需的液体反应物的最小厚度。 加热系统与蒸发板相关联,用于在成核或优选薄膜沸腾状态下在产生蒸气所需的最低温度下加热液体反应物。 盖子覆盖蒸发板以在预定压力下收集蒸气,并且设置有蒸气出口,液体进料器将液体反应物供给到蒸发板上。

    Process for manufacturing a micro-structured optical fibre
    8.
    发明申请
    Process for manufacturing a micro-structured optical fibre 有权
    微结构光纤制造工艺

    公开(公告)号:US20050072192A1

    公开(公告)日:2005-04-07

    申请号:US10499022

    申请日:2001-12-21

    摘要: In a process for manufacturing a micro-structured optical fibre, an intermediate preform is made by forming a sol; pouring the sol in a cylindrical mould including a set of structural generating elements defining internal structural elements of the intermediate preform; transforming the sol into a gel so as to obtain a cylindrical gel body defining the intermediate preform; and removing the cylindrical intermediate preform from the mould.

    摘要翻译: 在制造微结构光纤的方法中,通过形成溶胶来制造中间预制件; 将溶胶倒入包括限定中间预制件的内部结构元件的一组结构产生元件的圆柱形模具中; 将溶胶转化成凝胶,以获得限定中间预型体的圆柱形凝胶体; 并从模具中取出圆柱形中间预成型件。

    Method of fabricating alumina-doped silica fibers
    9.
    发明授权
    Method of fabricating alumina-doped silica fibers 失效
    制造氧化铝掺杂二氧化硅纤维的方法

    公开(公告)号:US4657575A

    公开(公告)日:1987-04-14

    申请号:US779081

    申请日:1985-09-20

    申请人: Giacomo Roba

    发明人: Giacomo Roba

    CPC分类号: C03C13/045

    摘要: The method of fabricating alumina-doped silica fibers allows the production of silica and dopant with reactions between gaseous chemical compounds. Alumina is obtained from a reaction between oxygen and a low-temperature vaporizable organometallic compound. The optical fibers produced do not present the refraction-index dip and exhibit low attenuation.

    摘要翻译: 制造氧化铝掺杂的二氧化硅纤维的方法允许通过气态化合物之间的反应生产二氧化硅和掺杂剂。 氧化铝由氧和低温可蒸发的有机金属化合物之间的反应获得。 所生产的光纤不存在折射率下降并且呈现低衰减。

    Process for manufacturing optical-fibre preforms at high deposition rate
    10.
    发明授权
    Process for manufacturing optical-fibre preforms at high deposition rate 失效
    以高沉积速率制造光纤预制棒的工艺

    公开(公告)号:US4608070A

    公开(公告)日:1986-08-26

    申请号:US650297

    申请日:1984-09-12

    申请人: Giacomo Roba

    发明人: Giacomo Roba

    CPC分类号: C03B37/01815

    摘要: The process allows a uniform layer of glass particles, forming the preform, to be deposited on the internal wall of a supporting tube rotated around its axis. A suitable relationship is provided to determine the temperature distribution in the deposition zone. The apparatus makes use of different types of heat sources for generating inside the tube a temperature with the distribution required by the process.

    摘要翻译: 该方法允许形成预制件的均匀的玻璃颗粒层沉积在围绕其轴线旋转的支撑管的内壁上。 提供合适的关系以确定沉积区中的温度分布。 该设备利用不同类型的热源在管内产生具有该过程所需分布的温度。