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    • 54. 发明申请
    • Optical fiber with extended bandwidth for crimp and cleave connectors
    • 具有扩展带宽的光纤,用于压接和切割连接器
    • US20080019650A1
    • 2008-01-24
    • US11489860
    • 2006-07-20
    • Adam HokanssonJie LiXiaoguang Sun
    • Adam HokanssonJie LiXiaoguang Sun
    • G02B6/036
    • G02B6/0288C03B2203/26G02B6/02395G02B6/03627G02B6/03644G02B6/14Y02P40/57
    • An optical fiber includes a large graded index core of Ge doped silica for an increased bandwidth-length-product of over 100 MHz-km. A cladding layer of non-doped silica is formed on the core during the preform process and subsequently during drawing the preform an ultraviolet light curable polymer first coating is overlaid on the cladding layer. The first coating is sufficiently hardened to match the fracture characteristics of the silica core and cladding layer to facilitate crimp and cleave termination. The first coating is additionally provided with an index of refraction greater than the cladding layer to enable mode or energy stripping from the cladding layer. A second polymer layer may optionally be applied during draw for protection and to provide a tough outer layer of the optical fiber for the deformable features of a connector to hold onto after crimping.
    • 光纤包括Ge掺杂二氧化硅的大分级折射率核,用于超过100MHz-km的增加的带宽长度乘积。 在预成型工艺期间,在芯上形成未掺杂二氧化硅的包覆层,随后在拉伸预制件期间,将紫外光固化聚合物第一涂层覆盖在包覆层上。 第一涂层被充分硬化以匹配二氧化硅芯和包层的断裂特性,以便于卷曲和切割终止。 第一涂层另外设置有大于包覆层的折射率以使得能够从包覆层进行模式或能量剥离。 第二聚合物层可以任选地在拉伸过程中施加以进行保护,并且为连接器的可变形特征提供光纤的韧性外层,以在压接之后保持。