Method of manufacturing optical fiber and optical fiber
    6.
    发明授权
    Method of manufacturing optical fiber and optical fiber 有权
    制造光纤和光纤的方法

    公开(公告)号:US08744226B2

    公开(公告)日:2014-06-03

    申请号:US13605215

    申请日:2012-09-06

    IPC分类号: G02B6/00 G02B6/36

    摘要: A method of manufacturing an optical fiber includes a first step of drawing an optical fiber preform into a glass fiber and disposing a fiber coating on the outer circumference of the glass fiber to form a parent optical fiber; a second step of cutting the parent optical fiber into a plurality of individual optical fibers; a third step of determining, at, at least, one spot of the parent optical fiber, a failure strength F1 and a failure time T; a fourth step of determining a failure strength F2 of each of the individual optical fibers; and a fifth step of selecting an optical fiber having a failure strength F2 of 5.5 kgf or more from the individual optical fibers cut from the parent optical fiber whose failure strength F1 and failure time T satisfy the inequality T>2.6×10−11×exp(4.736×F1).

    摘要翻译: 制造光纤的方法包括将光纤预制件拉入玻璃纤维中并在玻璃纤维的外周布置纤维涂层以形成母光纤的第一步骤; 将母光纤切割成多个单独光纤的第二步骤; 确定母光纤中至少一个点的第三步骤,故障强度F1和故障时间T; 确定各个光纤的故障强度F2的第四步骤; 以及第五步骤,从故障强度F1和故障时间T满足不等式T> 2.6×10-11×exp的母光纤切断的各个光纤中选择具有5.5kgf以上的故障强度F2为5.5kgf以上的光纤 (4.736×F1)。

    METHOD OF MANUFACTURING OPTICAL FIBER AND OPTICAL FIBER
    7.
    发明申请
    METHOD OF MANUFACTURING OPTICAL FIBER AND OPTICAL FIBER 有权
    制造光纤和光纤的方法

    公开(公告)号:US20130064516A1

    公开(公告)日:2013-03-14

    申请号:US13605215

    申请日:2012-09-06

    IPC分类号: G02B6/036 C03B37/07

    摘要: A method of manufacturing an optical fiber includes a first step of drawing an optical fiber preform into a glass fiber and disposing a fiber coating on the outer circumference of the glass fiber to form a parent optical fiber; a second step of cutting the parent optical fiber into a plurality of individual optical fibers; a third step of determining, at, at least, one spot of the parent optical fiber, a failure strength F1 and a failure time T; a fourth step of determining a failure strength F2 of each of the individual optical fibers; and a fifth step of selecting an optical fiber having a failure strength F2 of 5.5 kgf or more from the individual optical fibers cut from the parent optical fiber whose failure strength F1 and failure time T satisfy the inequality T>2.6×10−11×exp(4.736×F1).

    摘要翻译: 制造光纤的方法包括将光纤预制件拉入玻璃纤维中并在玻璃纤维的外周布置纤维涂层以形成母光纤的第一步骤; 将母光纤切割成多个单独光纤的第二步骤; 确定母光纤中至少一个点的第三步骤,故障强度F1和故障时间T; 确定各个光纤的故障强度F2的第四步骤; 以及第五步,从故障强度F1和故障时间T满足不等式T> 2.6×10-11×exp的母光纤切断的各个光纤中选择具有5.5kgf以上的故障强度F2为5.5kgf以上的光纤 (4.736×F1)。

    Optical fiber for optical amplifier
    10.
    发明授权
    Optical fiber for optical amplifier 有权
    光放大器用光纤

    公开(公告)号:US07466479B2

    公开(公告)日:2008-12-16

    申请号:US11030147

    申请日:2005-01-07

    申请人: Keiichi Aiso

    发明人: Keiichi Aiso

    IPC分类号: H01S3/00

    摘要: By optimizing the refractive index profile, the absorption coefficient of a rare earth element doped optical fiber can be enlarged and nonlinear effect can be suppressed. Thus, according to the present invention, the optical fiber, which is suitable for wide band optical amplification, can be realized. Moreover, in the present invention, the optical fiber of W-shape profile comprising a core, the first cladding having a refractive index smaller than that of said core surrounding said core, and the second cladding having a refractive index smaller than that of said core and larger than that of said first cladding surrounding said first cladding is prepared and are suitable for the wide band optical amplification. That is, since in the rare earth element optical fiber of this W-shape profile, both the absorption coefficient of a rare earth element, and the absolute value of chromatic dispersion can be increased greatly as compared to the optical fiber of the conventional step index profile and nonlinear effect can be suppressed more efficiently, an optical fiber which is suitable for further wide band optical amplification, is realizable.

    摘要翻译: 通过优化折射率分布,可以扩大稀土元素掺杂光纤的吸收系数,并且可以抑制非线性效应。 因此,根据本发明,可以实现适用于宽带光放大的光纤。 此外,在本发明中,包括芯的W型轮廓的光纤,所述第一包层的折射率小于围绕所述纤芯的所述纤芯的折射率,所述第二包层的折射率小于所述芯的折射率 并且比围绕所述第一包层的所述第一包层的尺寸大,并且适合于宽带光学放大。 也就是说,由于在这种W形轮廓的稀土元素光纤中,稀土元素的吸收系数和色散的绝对值都可以与传统步长的光纤相比大大增加 可以更有效地抑制轮廓和非线性效应,适用于进一步的宽带光放大的光纤是可实现的。