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    • 2. 发明申请
    • WIDE BAND OPTICAL FIBER, OPTICAL FIBER CORE WIRE AND OPTICAL FIBER CORD
    • 宽带光纤,光纤芯线和光纤光栅
    • WO1996008741A1
    • 1996-03-21
    • PCT/JP1995001826
    • 1995-09-13
    • TORAY INDUSTRIES, INC.FUKUDA, SeijiKOBAYASHI, HisaakiTANEICHI, ShoshiroYAMAMOTO, Tetsuya
    • TORAY INDUSTRIES, INC.
    • G02B06/44
    • G02B6/0288G02B6/02038
    • A wide band optical fiber having a suitable wide band for communication, hardly breaking and cracking even when a press-fit type connector is connected by a sufficient pressing force having a small loss due to the press-fit connection and a high alignment accuracy, capable of minimizing a connecting loss and being connected easily to an ordinary quartz GI type optical fiber of 125 mu m diameter, and having a high interchangeability with an ordinary quartz GI type optical fiber. The wide band optical fiber is a refractive index distribution type optical fiber comprising a core of quartz glass having a refractive index distribution, a clad of quartz glass provided closely on the core, and a polymer covering layer provided closely on the clad, and characterized in that the polymer covering layer is made of an ultraviolet ray-cured hard polymer having a Shore hardness of above D55 and a thickness of above 5 mu m. Primary and secondary covering layers are provided closely on this optical fiber to obtain an optical fiber core wire. A polymer sheath layer is provided on the optical fiber core wire to obtain an optical fiber cord.
    • 宽带光纤具有适合的通信宽带,即使当压入式连接器通过压配合连接具有小的损耗的足够的压力连接并且具有高的对准精度而连接时,几乎不会断裂和破裂, 使连接损失最小化并且容易连接到直径为125μm的普通石英GI型光纤,并且与普通石英GI型光纤具有高互换性。 宽带光纤是折射率分布型光纤,包括具有折射率分布的石英玻璃芯,密封在芯上的石英玻璃的包层以及密封地设置在包层上的聚合物覆盖层,其特征在于, 聚合物覆盖层由肖氏硬度高于D55且厚度大于5μm的紫外线固化硬聚合物制成。 初级和次级覆盖层紧密地设置在该光纤上以获得光纤芯线。 在光纤芯线上设置聚合物护套层以获得光纤线。