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    • 10. 发明申请
    • MULTIMODE GRADED-INDEX PLASTIC OPTICAL FIBER AND METHOD FOR PRODUCING THE SAME
    • 多模分级指纹塑料光纤及其制造方法
    • US20120063734A1
    • 2012-03-15
    • US12878577
    • 2010-09-09
    • Yasuhiro KOIKE
    • Yasuhiro KOIKE
    • G02B6/028
    • G02B6/0288B29D11/00663G02B1/045
    • A multimode graded-index plastic optical fiber comprises a cladding and a core. The core has a refractive index which continuously becomes higher as closer to a center of a circular cross-section of the core. The core propagates light of a first mode group, which should be propagated, of incoming light from one end face of the core and emits the light from the other end face of the core. The cladding is provided on a periphery of the core and has a cylindrical cross-section. The cladding has a refractive index which is lower than that of the core. The cladding deflects light of the first mode group at an interface with the core. The core has a first core section, a second core section and a third core section. The first core section contacts an inner circumference of the cladding. The second core section is inside the first core section, and is inside the core. The second core section is a light scattering section which scatters light of a second mode group of the incoming light outside. The second mode group is of a higher order than the first mode group.
    • 多模渐变折射率塑料光纤包括包层和芯。 芯具有更靠近芯的圆形横截面的中心的连续变高的折射率。 芯从芯的一个端面传播入射光的第一模式组的光,并从芯的另一个端面发射光。 包层设置在芯的周边上并且具有圆柱形横截面。 包层的折射率低于芯的折射率。 包层使第一模式组的光在与芯的界面处偏转。 芯具有第一芯部分,第二核心部分和第三核心部分。 第一芯部分接触包层的内圆周。 第二个核心部分在第一个核心部分内部,并且在核心内部。 第二核心部分是将入射光的第二模式组的光散射到外部的光散射部分。 第二模式组的次序比第一模式组高。