Glass fibre with at least two glass layers
    59.
    发明授权
    Glass fibre with at least two glass layers 失效
    玻璃纤维至少有两层玻璃

    公开(公告)号:US07515802B2

    公开(公告)日:2009-04-07

    申请号:US10489020

    申请日:2002-09-07

    Abstract: The glass fiber for an optical amplifier has a matrix glass core, a first glass cladding, and a second glass cladding. The matrix glass core has a composition, in mol %, of Bi2O3, 30-60; SiO2, 0.5-40; B2O3, 0.5-40; Al2O3, 0-30; Ga2O3, 0-20; Ge2O3, 0-25 ; La2O3, 0-15; Nb2O5, 0-10; SnO2, 0-30; alkali metal oxides, 0-40; and Er2O3, 0.05-8. The glass claddings have the same composition as the core, except that a transition metal compound is included as an absorbent. The refraction index of the matrix glass is > about 1.85, the refraction index of the first glass cladding is less than that of the core, and the refraction index of the second glass cladding is higher than that of the first.

    Abstract translation: 用于光放大器的玻璃纤维具有矩阵玻璃芯,第一玻璃包层和第二玻璃包层。 基体玻璃核心组成为摩尔%,Bi2O3为30-60; SiO2,0.5-40; B2O3,0.5-40; Al2O3,0-30; Ga2O3,0-20; Ge2O3,0-25; La2O3,0-15; Nb2O5,0-10; SnO2,0-30; 碱金属氧化物,0-40; 和Er2O3,0.05-8。 除了包含过渡金属化合物作为吸收剂之外,玻璃包层具有与芯相同的成分。 矩阵玻璃的折射率>约1.85,第一玻璃包层的折射率小于芯的折射率,第二玻璃包层的折射率高于第一玻璃包层的折射率。

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