Method of making updoped cladding by using silicon tertrachloride as the dopant
    132.
    发明授权
    Method of making updoped cladding by using silicon tertrachloride as the dopant 有权
    通过使用四氯化硅作为掺杂剂来制造上覆层的方法

    公开(公告)号:US09290405B2

    公开(公告)日:2016-03-22

    申请号:US14467369

    申请日:2014-08-25

    Abstract: One embodiment of the disclosure relates to a method of making an optical fiber comprising the steps of: (i) exposing a silica based preform with at least one porous glass region having soot density of ρ to a gas mixture comprising SiCl4 having SiCl4 mole fraction ySiCl4 at a doping temperature Tdop such that parameter X is larger than 0.03 to form the chlorine treated preform, wherein X = 1 1 + [ ( ρ ρ s - ρ ) ⁢ 0.209748 ⁢ T dop ⁢ Exp ⁡ [ - 5435.33 / T dop ] y SiCl ⁢ ⁢ 4 3 / 4 ] and ρs is the density of the fully densified soot layer; and (ii) exposing the chlorine treated preform to temperatures above 1400° C. to completely sinter the preform to produce sintered optical fiber preform with a chlorine doped region; and (iii) drawing an optical fiber from the sintered optical preform.

    Abstract translation: 本公开的一个实施方案涉及一种制造光纤的方法,包括以下步骤:(i)将二氧化硅基预型体暴露于具有烟炱密度的至少一个多孔玻璃区域; 涉及在掺杂温度Tdop下包括具有SiCl 4摩尔分数ySiCl 4的SiCl 4的气体混合物,使得参数X大于0.03以形成经氯处理的预成型体,其中X = 11 + [(&rgr; s - &rgr;)0.209748 T dop Exp] [ - 5435.33 / T dop] y SiClü务4 3/4]和&rgr; s是完全致密的烟灰层的密度; 和(ii)将氯处理的预制件暴露于高于1400℃的温度下,以完全烧结预成型件,以制备具有氯掺杂区域的烧结光纤预制件; 和(iii)从烧结的光学预型件拉制光纤。

    OPTICAL-FIBER PREFORM AND METHOD FOR MANUFACTURING OPTICAL-FIBER PREFORM
    133.
    发明申请
    OPTICAL-FIBER PREFORM AND METHOD FOR MANUFACTURING OPTICAL-FIBER PREFORM 有权
    光纤预制件和制造光纤预制件的方法

    公开(公告)号:US20150370008A1

    公开(公告)日:2015-12-24

    申请号:US14765110

    申请日:2014-01-28

    Abstract: An optical fiber preform which can be drawn into a low attenuation optical fiber is provided with a core portion and a cladding portion surrounding the core portion. The core portion includes a first core portion and a second core portion surrounding the first core portion. The cladding portion includes a first cladding portion surrounding the second core portion and a second cladding portion surrounding the first cladding portion. The first core portion contains an alkali metal element, the concentration of oxygen molecules contained in glass is 30 mol ppb or more and 200 mol ppb or less in a part of or entire region having an alkali metal atom concentration of 100 atomic ppm or more, and the concentration of oxygen molecules contained in glass is 10 mol ppb or less in a region having an alkali metal atom concentration of 50 atomic ppm or less.

    Abstract translation: 可以拉入低衰减光纤的光纤预制件设置有芯部和围绕芯部的包层部。 芯部包括第一芯部分和围绕第一芯部分的第二芯部分。 包层部分包括围绕第二芯部的第一包层部分和围绕第一包层部分的第二包层部分。 第一核心部分含有碱金属元素,在碱金属原子浓度为100原子ppm以上的部分或全部区域中,玻璃中含有的氧分子的浓度为30摩尔ppb以上且200摩尔ppb以下, 并且在碱金属原子浓度为50原子ppm以下的区域中,玻璃中含有的氧分子的浓度为10摩尔ppb以下。

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