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    • 5. 发明公开
    • MULTIMODE OPTICAL FIBER AND METHODS OF MANUFACTURE THEREOF
    • 多模光纤及其制造方法
    • EP3175269A1
    • 2017-06-07
    • EP15745729.2
    • 2015-07-24
    • Panduit Corp.
    • CASTRO, Jose M.PIMPINELLA, Richard J.KOSE, BulentLANE, Brett
    • G02B6/028
    • G02B6/0288G02B6/02257G02B6/0281
    • The present invention generally relates to the field of fiber optics, and more particularly, to apparatuses, systems, and methods directed towards improving effective modal bandwidth within a fiber optic communication environment. In an embodiment, a multimode optical fiber in accordance with the present invention comprises a core and cladding material system where the refractive indices of the core and cladding are selected to modify the shape of the profile dispersion parameter, y, as a function of wavelength in such a way that the alpha parameter (α-parameter), which defines the refractive index profile, produces negative relative group delays over a broad range of wavelengths. The new shape of the profile dispersion parameter departs from traditional fibers where the profile dispersion parameter monotonically decreases around the selected wavelength that maximizes the effective modal bandwidth (EMB).
    • 本发明总体上涉及光纤领域,并且更具体地涉及旨在改善光纤通信环境内的有效模式带宽的设备,系统和方法。 在一个实施例中,根据本发明的多模光纤包括纤芯和包层材料系统,其中选择纤芯和包层的折射率以修改作为波长的函数的轮廓色散参数y的形状 这种方式使得定义折射率分布的α参数(α参数)在宽范围的波长上产生负的相对群延迟。 剖面色散参数的新形状偏离传统光纤,其中剖面色散参数在选定波长附近单调减小,使有效模式带宽(EMB)最大化。