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    Method for manufacturing a glass doped with a rare earth element and fiber for optical amplification using the same
    96.
    发明申请
    Method for manufacturing a glass doped with a rare earth element and fiber for optical amplification using the same 有权
    制造掺杂有稀土元素的玻璃和使用其的光学放大的光纤的方法

    公开(公告)号：US20040190846A1

    公开(公告)日：2004-09-30

    申请号：US10824429

    申请日：2004-04-15

    Applicant: The Furukawa Electric Co., Ltd.

    Inventor： Toshihiro Nakamura ,  Keiichi Aiso ,  Takeshi Yagi ,  Hisashi Koaizawa ,  Yoko Moriai

    IPC: G02B006/02

    CPC classification number: H01S3/06716 ,  C03B37/01433 ,  C03B37/0148 ,  C03B37/01493 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/36 ,  C03C13/045 ,  Y02P40/57

    Abstract: An optical fiber for optical amplification, characterized in that a full width at half maximum of gain spectrum is 45 nm or more; and a maximum value of power conversion efficiency is 80% or more. A method for producing a rare earth element-doped glass for use in manufacturing the optical fiber, which comprises a deposition step of depositing fine silica glass particles and a co-dopant (a) to prepare an aggregate of fine silica glass particles doped with the co-dopant (a); and a immersion step of immersing the aggregate of fine silica glass particles prepared in the deposition step in a solution containing the rare earth element and the co-dopant (b) to thereby dope the aggregate of fine silica glass particles with the rare earth element component and the co-dopant (b).

    Abstract translation: 一种用于光放大的光纤，其特征在于，增益谱的半值全宽为45nm以上; 功率转换效率的最大值为80％以上。 一种制造用于制造光纤的稀土元素掺杂玻璃的方法，包括沉积步骤，沉积细二氧化硅玻璃颗粒和共掺杂剂（a），以制备掺杂有 共掺杂剂（a）; 以及浸渍步骤，将沉积步骤中制备的细二氧化硅玻璃颗粒的聚集体浸入含有稀土元素和共掺杂物（b）的溶液中，从而将稀土元素组分 和共掺杂剂（b）。

    Solid state glass constituent delivery system
    99.
    发明授权
    Solid state glass constituent delivery system 有权
    固态玻璃成分输送系统

    公开(公告)号：US06604388B1

    公开(公告)日：2003-08-12

    申请号：US09745953

    申请日：2000-12-21

    Applicant: Ying-Hua Zhang ,  Brian M. Laliberte ,  Ray F. Robinson

    Inventor： Ying-Hua Zhang ,  Brian M. Laliberte ,  Ray F. Robinson

    IPC: C03C2502

    CPC classification number: C03C25/105 ,  C03B37/01807 ,  C03B37/01838 ,  C03B37/027 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2207/81 ,  C03B2207/90

    Abstract: A method and apparatus are disclosed for the manufacture of an optical fiber preform having incorporated therein a comparatively high concentration of rare earth dopant material, and which thus can be drawn and processed into an optical fiber having low numerical aperture, low core attenuation, and high pumping power absorption. The high concentrations of rare earth dopant material are accomplished through either the “hybrid vapor processing” (HVP) method or a “hybrid liquid processing” (HLP) method, each capable of being practiced in combination or independently of one another. The HVP method involves the vaporization of a rare earth halogen by the exposure thereof to a sufficiently elevated temperature, independently, or contemporaneously with the transport of the resultant rare earth halogen laden vapor, into a glass forming oxidation reaction zone on a flowing stream of essentially an unreactive inert gas, such as helium. According to the HLP method, a first amount of rare earth dopant is provided according to the HVP method and/or other vapor source of rare earth dopant which is mixed with glass forming vapors to form a deposited soot layer on the internal surface of a glass tube. The soot-deposited tube is then impregnated with a dopant solution which may be formulated with a second amount of rare earth dopant. The tube is then thermally collapsed resulting in an optical preform with a an enhanced amount of incorporated first and second amounts of rare earth dopant.

    Abstract translation: 公开了一种用于制造具有相当高浓度的稀土掺杂剂材料的光纤预制件的方法和装置，因此可以将其拉制和加工成具有低数值孔径，低内核衰减和高的光纤 抽吸功率吸收。 高浓度的稀土掺杂剂材料通过“混合蒸气处理”（HVP）方法或“混合液体处理”（HLP）方法实现，每种方法可以彼此组合或独立地实施。 HVP方法包括通过将稀土卤素的蒸发独立地或同时地将所得的含稀土卤素的蒸汽输送到基本上流动的流动的玻璃形成氧化反应区中，将稀土卤素的蒸发蒸发到足够高的温度 非反应性惰性气体，例如氦气。 根据HLP方法，根据HVP法和/或稀土掺杂剂的其它蒸汽源与玻璃形成蒸气混合，提供第一量的稀土掺杂剂，以在玻璃的内表面上形成沉积的烟灰层 管。 然后将烟灰沉积管用掺杂剂溶液浸渍，掺杂剂溶液可以用第二量的稀土掺杂剂配制。 然后将管热收缩，导致具有增加量的掺入的第一和第二量的稀土掺杂剂的光学预型件。

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