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    • 2. 发明授权
    • Optical fiber component for spot size transition and method of making the same
    • 用于光斑尺寸转换的光纤部件及其制造方法
    • US07037004B2
    • 2006-05-02
    • US10718645
    • 2003-11-24
    • Nahoko NakamuraKeiko ShiraishiTomotaka MuraseSusumu Ohneda
    • Nahoko NakamuraKeiko ShiraishiTomotaka MuraseSusumu Ohneda
    • G02B6/255C03B37/15
    • G02B6/2551G02B6/262
    • A large-diameter core optical fiber and a small-diameter core high optical fiber are fusion-spliced, and the spliced portion is heated to expand the core diameter of a core of the high optical fiber and form a spot size transition portion, whereby spot sizes of the optical fibers are matched and relative refractive index differences thereof are made substantially identical. Subsequently, the optical fiber is cut at an arbitrary position and the spliced portion and the spot size transition portion are placed inside a ferule with the large diameter core optical fiber arranged on a light incident and outgoing end face side of the ferrule to form an optical fiber component. The core diameter is expanded while monitoring transition loss of the splined portion to obtain an optical fiber component having an optimal spot size transition portion without an advanced technique and without increase in transition loss.
    • 大直径芯光纤和小直径芯高光纤被熔接,并且加热接合部分以扩大高光纤的芯的芯直径并形成光斑尺寸过渡部分,由此光斑 光纤尺寸匹配,其相对折射率差大致相同。 随后,在任意位置切割光纤,并且将接合部分和光点尺寸转变部分放置在具有布置在套圈的光入射和出射端面侧上的大直径芯光纤的小鼓内,以形成光学 纤维成分。 芯直径扩大,同时监测花键部分的过渡损耗,以获得具有最佳光斑尺寸转变部分的光纤部件,而不需要先进的技术,而不会增加转变损耗。