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    • 9. 发明公开
    • 저손실 광섬유 및 광섬유 모재의 제조 방법
    • 低损光学纤维和用于制造光纤预制件的方法
    • KR1020050028606A
    • 2005-03-23
    • KR1020030065094
    • 2003-09-19
    • 삼성전자주식회사
    • 오성국김성진
    • G02B6/00C03B37/02
    • G02B6/03611C03B37/01413C03B37/01466C03B37/01807C03B37/01815C03B2201/12C03B2201/28C03B2201/31C03B2203/22C03B2203/23C03B2207/50G02B6/03627
    • A low loss optical fiber and a method for manufacturing optical fiber materials are provided to reduce loss at a long-wavelength region by including a core with an inner core portion made of pure-silica at a central portion. A core(230) includes inner and outer core portions(210,220). The inner core portion(210) is positioned at a central portion of an optical fiber(200). The inner core portion is made of pure silica material. The outer core portion encloses the inner core portion and is made of a silica material which is doped with materials for controlling a refractive index. A clad(260) encloses the core. A ratio of a diameter of the inner core portion to the core is larger than 0 and smaller than 0.4. The clad includes an inner clad portion(240) and an outer clad portion(250). The inner clad portion has a refractive index smaller than that of the outer core portion. The outer clad portion encloses the inner cladding.
    • 提供低损耗光纤和制造光纤材料的方法,以通过在中心部分包​​括具有由纯二氧化硅制成的内芯部分的芯体来减小长波长区域的损耗。 芯部(230)包括内部和外部芯部分(210,220)。 内芯部分(210)位于光纤(200)的中心部分。 内芯部分由纯二氧化硅材料制成。 外芯部包围内芯部分,并由二氧化硅材料制成,该二氧化硅材料掺杂有用于控制折射率的材料。 包层(260)包围核心。 内芯部与核心的直径比大于0且小于0.4。 包层包括内包层部分(240)和外包层部分(250)。 内包层部分的折射率小于外芯部分的折射率。 外包层包围内包层。