Method for producing glass preform for optical fiber
    1.
    发明授权
    Method for producing glass preform for optical fiber 失效
    光纤玻璃预制棒的制造方法

    公开(公告)号:US4693738A

    公开(公告)日:1987-09-15

    申请号:US781636

    申请日:1985-09-30

    摘要: An optical fiber comprising a core essentially made of quartz and a cladding made of fluorine added quartz is fabricated with good productivity from a glass preform produced by a method comprising maintaining a hollow cylindrical porous glass preform in a first high temperature atmosphere comprising at least one fluorine-containing compound with jetting a cooling gas through the central hollow part of the porous glass preform to grade the amount of fluorine to be added in the radial direction of the porous glass preform and then sintering the porous glass preform in a second high temperature atmosphere kept at a temperature higher than the first high temperature atmosphere to make it transparent.

    摘要翻译: 一种由基本上由石英制成的芯和由氟添加的石英制成的包层的光纤由具有良好生产能力的玻璃预制棒制成,所述玻璃预制棒通过包括将中空圆柱形多孔玻璃预制件保持在包括至少一种氟 通过多孔玻璃预制件的中心中空部分喷射冷却气体以分级在多孔玻璃预制件的径向方向上加入的氟量,然后在保持的第二高温气氛中烧结多孔玻璃预制件 在比第一高温气氛高的温度下使其透明。

    Methods for producing optical fiber preform and optical fiber
    2.
    发明授权
    Methods for producing optical fiber preform and optical fiber 失效
    生产光纤预制棒和光纤的方法

    公开(公告)号:US4804393A

    公开(公告)日:1989-02-14

    申请号:US97320

    申请日:1987-09-11

    摘要: A method for producing an optical fiber preform comprising jetting a glass raw material mixture containing at least one phosphorous compound and a fuel gas through a burner, hydrolyzing the raw materials in the flame to form fine glass particles, depositing the fine glass particles to form a porous glass preform, and then sintering the porous glass preform in a stream of an inert gas with removing phosphorus liberated from the preform to produce a transparent optical fiber preform, from which transparent optical fiber preform, an optical fiber having low attenuation at a wavelength of about 1.52 micrometer is produced.

    摘要翻译: 一种光纤预制棒的制造方法,其特征在于,包括通过燃烧器喷射含有至少一种磷化合物和燃料气体的玻璃原料混合物,水解火焰中的原料,形成微细的玻璃粒子,沉积微细玻璃粒子,形成 多孔玻璃预制件,然后在惰性气体流中烧结多孔玻璃预制件,除去从预成型体释放出的磷,以制造透明光纤预制件,透明光纤预制件,其波长为低衰减的光纤 产生约1.52微米。

    Optical fiber cable
    5.
    发明授权
    Optical fiber cable 失效
    光纤电缆

    公开(公告)号:US4097119A

    公开(公告)日:1978-06-27

    申请号:US584663

    申请日:1975-06-06

    IPC分类号: G02B6/44 G02B5/16

    摘要: An optical fiber cable of a structure comprising optical fibers, cushion layers supporting the fibers by way of low friction layers and a strengthening member provided lengthwise along the cable, wherein concentrated tension and compression applied to the optical fibers due to the external bending force can be dispersed through the cushion and low friction layers and the tension applied to the entire cable can be received by the strengthening member.

    摘要翻译: 一种结构的光缆,包括光纤,通过低摩擦层支撑纤维的缓冲层和沿电缆纵向设置的加强构件,其中由于外部弯曲力而对光纤施加的集中张力和压缩可以是 通过该衬垫和低摩擦层分散,并且施加到整个电缆的张力可以被加强构件接收。