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    Optical fiber preform and method
    7.
    发明授权
    Optical fiber preform and method 失效
    光纤预制棒和方法

    公开(公告)号：US4639079A

    公开(公告)日：1987-01-27

    申请号：US776523

    申请日：1985-10-28

    申请人： Dale R. Powers

    发明人： Dale R. Powers

    IPC分类号： C03B37/014 ,  G02B6/22

    CPC分类号： C03B37/014

    摘要： A porous glass optical waveguide preform is formed by depositing a coating of glass particulate material on the lateral surface of a core which may be a porous glass body continuously produced by the axial deposition of glass particles. The core rotates and moves longitudinally in one direction with respect to two flame hydrolysis burners which emit streams of glass particles having different compositions. In addition, the two burners reciprocatingly move with respect to a portion of the length of the core. The speed of each burner varies as it traverses along its path of reciprocating motion. The thickness of the layer produced by a burner at a given point is inversely related to the speed of the burner as it passes that point. The layers formed by the completion of a single traverse by both burners combine to form a conically-shaped layer, the composition of which varies from the base toward the apex thereof. The conically-shaped layer, which are adjacently located longitudinally along the preform, combine to form a cylindrically-shaped portion of the preform.

    摘要翻译： 通过在芯的侧表面上沉积玻璃颗粒材料的涂层来形成多孔玻璃光波导预制件，所述芯的侧表面可以是通过玻璃颗粒的轴向沉积连续产生的多孔玻璃体。 核心相对于发射具有不同组成的玻璃颗粒的两个火焰水解燃烧器在一个方向上纵向移动和纵向移动。 此外，两个燃烧器相对于芯的长度的一部分往复运动。 每个燃烧器的速度随着其往复运动的路径而变化。 燃烧器在给定点产生的层的厚度与通过该点时燃烧器的速度成反比。 通过由两个燃烧器完成单个横动而形成的层组合形成锥形层，其组成从基部向其顶点变化。 沿着预成型件纵向相邻定位的锥形层结合形成预成型件的圆柱形部分。

    Method of making optical waveguides
    8.
    发明授权
    Method of making optical waveguides 失效
    制造光波导的方法

    公开(公告)号：US4125388A

    公开(公告)日：1978-11-14

    申请号：US877514

    申请日：1978-02-13

    申请人： Dale R. Powers

    发明人： Dale R. Powers

    IPC分类号： C03B32/00 ,  C03B37/014 ,  C03B37/02

    CPC分类号： C03B37/01446 ,  C03B32/00 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/40 ,  C03B2201/42 ,  Y10S65/90

    摘要： A method of making low loss glass optical waveguides, wherein at least one coating of glass soot is deposited by the flame hydrolysis process on a starting member. The starting member is removed from the coating material or glass soot preform leaving an aperture therein, and a tube is secured to one end of the preform. While the preform is heated to its consolidation termperature, an atmosphere including a drying agent flows from the tube into the aperture and through the porous preform, thereby removing water from the preform while the soot is consolidated to form a dense glass article. The tube can be removed, and the resultant dense glass article can be drawn into an optical waveguide fiber.

    摘要翻译： 一种制造低损耗玻璃光波导的方法，其中玻璃烟灰的至少一个涂层通过火焰水解过程沉积在起始构件上。 起始构件从涂层材料或玻璃烟炱预制件中移除，在其中留下孔，并且管固定到预成型件的一端。 当将预成型件加热至其固化温度时，包括干燥剂的气氛从管流入孔并通过多孔预型件，从而从烟炱中除去水，同时烟炱被固结形成致密的玻璃制品。 可以除去管，并将所得的致密玻璃制品拉入光波导纤维中。