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    Method of and apparatus for expanding mode field diameter of optical fiber
    2.
    发明授权
    Method of and apparatus for expanding mode field diameter of optical fiber 失效
    扩展光纤模场直径的方法和装置

    公开(公告)号：US07142771B2

    公开(公告)日：2006-11-28

    申请号：US10383751

    申请日：2003-03-10

    申请人： Eiichiro Yamada ,  Kazuhito Saito ,  Mitsuaki Tamura

    发明人： Eiichiro Yamada ,  Kazuhito Saito ,  Mitsuaki Tamura

    IPC分类号： G02B6/16 ,  G02B6/18

    CPC分类号： G02B6/2552

    摘要： A method of and an apparatus for expanding the mode field diameter of an optical fiber by heating a specified region of the optical fiber with a uniform or desired temperature distribution for forming a thermally-diffused expanded core (TEC). The mode field diameter of the optical fiber is expanded by heating an optical fiber 1 with a burner 11 so as to thermally diffuse the dopant forming the refractive-index profile. The burner 11 has a heating surface 11a in which a plurality of gas-issuing holes 12 are arranged such that a plurality of parallel rows each of which is composed of a plurality of gas-issuing holes 12 are parallel to the axis of the optical fiber 1.

    摘要翻译： 通过以均匀或期望的温度分布加热光纤的特定区域来形成热扩散的扩展芯（TEC），来扩展光纤的模场直径的方法和装置。 通过用燃烧器11加热光纤1来扩展光纤的模场直径，以使形成折射率分布的掺杂剂热扩散。 燃烧器11具有加热面11a，多个排气孔12配置成使多个平行列由多个排气孔12构成，平行于光的轴线 纤维1。

    Optical fiber array
    4.
    发明授权
    Optical fiber array 失效

    公开(公告)号：US07021842B2

    公开(公告)日：2006-04-04

    申请号：US10222795

    申请日：2002-08-19

    申请人： Eiichiro Yamada ,  Kazuhito Saito ,  Mitsuaki Tamura

    发明人： Eiichiro Yamada ,  Kazuhito Saito ,  Mitsuaki Tamura

    IPC分类号： G02B6/255 ,  G02B6/00

    CPC分类号： G02B6/3861 ,  G02B6/2558 ,  G02B6/30 ,  G02B6/36 ,  G02B6/3636 ,  G02B6/3652 ,  G02B6/3801 ,  G02B6/3838 ,  G02B6/3839 ,  G02B6/3846 ,  G02B6/3887 ,  G02B6/4204

    摘要： In an optical fiber array, an optical fiber, a bundle of optical fibers or an optical fiber ribbon is mounted on an array substrate with a V-groove or V-grooves. A bare fiber portion in which a fiber coating is removed is placed in the V-groove, pressed by a presser member 6 and bonded by adhesives. At the front end, the fiber(s) is/are accurately positioned to connect to optical components or PLCs. The bare fiber portion contains a spliced portion of the dissimilar optical fibers having different mode field diameters and a mode field converting portion. The spliced portion of the dissimilar optical fibers is mounted on the array substrate. A flexible protection member is provided in the fiber coating portion extending over a rear edge of the array substrate. The optical fiber is bonded onto the array substrate, employing three kinds of adhesives that are different in the Young's modulus after hardening and the viscosity before hardening.

    Optical connector module
    7.
    发明授权
    Optical connector module 有权
    光连接器模块

    公开(公告)号：US08491197B2

    公开(公告)日：2013-07-23

    申请号：US13087837

    申请日：2011-04-15

    申请人： Mitsuaki Tamura ,  Osamu Shimakawa

    发明人： Mitsuaki Tamura ,  Osamu Shimakawa

    IPC分类号： G02B6/38

    CPC分类号： G02B6/4204 ,  G02B6/322 ,  G02B6/3865 ,  G02B6/4239

    摘要： There is provided an optical connector module in which an adhesive is interposed between a lens and a distal surface of an optical fiber, wherein the module includes a transparent positioning device and an optical fiber fixed in the positioning device. The positioning device has a lens provided to an end surface, a concave insertion portion into which the optical fiber is inserted and which is disposed so that the bottom surface in contact with the distal surface of the optical fiber is positioned opposite the lens, and a debris receiving portion that extends from the bottom surface in a radial direction of the optical fiber and has a surface continuous with the bottom surface.

    摘要翻译： 提供了一种光学连接器模块，其中粘合剂介于透镜和光纤的远端表面之间，其中模块包括固定在定位装置中的透明定位装置和光纤。 定位装置具有设置在端面的透镜，插入光纤的凹入插入部，并且配置成使得与光纤的远端面接触的底面与透镜相对定位， 碎片接收部分，其在光纤的径向方向上从底表面延伸并且具有与底表面连续的表面。