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    Ultra small core fiber with dispersion tailoring
    9.
    发明授权
    Ultra small core fiber with dispersion tailoring 有权
    超小芯纤维与分散裁剪

    公开(公告)号：US08824847B2

    公开(公告)日：2014-09-02

    申请号：US13915444

    申请日：2013-06-11

    Applicant: IMRA America, Inc.

    Inventor： Liang Dong ,  Brian Thomas ,  Libin Fu

    IPC: G02B6/02 ,  G02B6/036 ,  G02F1/365 ,  C03B37/012 ,  G02F1/39 ,  H01S3/00 ,  H01S3/067

    CPC classification number: G02F1/365 ,  C03B37/0122 ,  C03B2201/82 ,  C03B2201/86 ,  C03B2203/10 ,  C03B2203/14 ,  C03B2203/42 ,  C03B2205/08 ,  C03B2205/10 ,  G02B6/02214 ,  G02B6/02333 ,  G02B6/02357 ,  G02F1/395 ,  H01S3/0057 ,  H01S3/06729 ,  H01S3/06754

    Abstract: Various embodiments of optical fiber designs and fabrication processes for ultra small core fibers (USCF) are disclosed. In some embodiments, the USCF includes a core that is at least partially surrounded by a region comprising first features. The USCF further includes a second region at least partially surrounding the first region. The second region includes second features. In an embodiment, the first features are smaller than the second features, and the second features have a filling fraction greater than about 90 percent. The first features and/or the second features may include air holes. Embodiments of the USCF may provide dispersion tailoring. Embodiments of the USCF may be used with nonlinear optical devices configured to provide, for example, a frequency comb or a supercontinuum.

    Abstract translation: 公开了用于超小芯纤维（USCF）的光纤设计和制造工艺的各种实施例。 在一些实施例中，USCF包括至少部分地被包括第一特征的区域包围的芯。 USCF还包括至少部分围绕第一区域的第二区域。 第二个区域包括第二个特征。 在一个实施例中，第一特征小于第二特征，并且第二特征具有大于约90％的填充分数。 第一特征和/或第二特征可以包括气孔。 USCF的实施例可以提供色散调整。 USCF的实施例可以与被配置为提供例如频率梳或超连续谱的非线性光学装置一起使用。

    Glass large-core optical fibers
    10.
    发明授权
    Glass large-core optical fibers 有权

    公开(公告)号：US10353144B2

    公开(公告)日：2019-07-16

    申请号：US15468520

    申请日：2017-03-24

    Applicant: IMRA America, Inc.

    Inventor： Liang Dong ,  Jun Li ,  Hugh McKay ,  Libin Fu ,  Andrius Marcinkevicius

    IPC: G02B6/02 ,  H01S3/067 ,  G02B6/028 ,  H01S3/091 ,  H01S3/11 ,  G02B6/14

    Abstract: Embodiments of optical fiber may include cladding features that include a material (e.g., fluorine-doped silica glass) that may produce a very low relative refractive index difference with respect to cladding material in which the cladding features are disposed. This relative refractive index difference may be characterized by (n1−n2)/n1, where n1 is the index of refraction of the cladding material in which the cladding features are included, and n2 is the index of refraction of the cladding features. In certain embodiments, the relative refractive index difference may be less than about 4.5×10−3. In various embodiments, the configuration of the cladding features including, for example, the size and spacing of the cladding features, can be selected to provide for confinement of the fundamental mode yet leakage for the second mode and higher modes, which may provide mode filtering, single mode propagation, and/or low bend loss.

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