Method for Overcladding an Optical Fiber Preform
    11.
    发明申请
    Method for Overcladding an Optical Fiber Preform 有权
    用于包覆光纤预制件的方法

    公开(公告)号:US20070289332A1

    公开(公告)日:2007-12-20

    申请号:US11765083

    申请日:2007-06-19

    CPC分类号: C03B37/01291 Y02P40/57

    摘要: Method for overcladding an optical fiber preform with a given target diameter (D0) of the final preform includes providing a primary preform to be overcladded, and successively depositing first overcladding layers by projecting and vitrifying silica particles on the primary preform moving in relative translation with a plasma torch. Each first overcladding layer has a given uniform thickness (d) and is deposited at a given, constant silica particle flow rate and at a given, constant translation speed. The method also includes the detection of a preform diameter (D1) greater than a given threshold (S) and the deposition of a final overcladding layer having the remaining required thickness (D0−D1) at a constant silica particle flow rate and at a reduced translation speed. The inventive method enables a preform to be overcladded efficiently with improved yield and high quality.

    摘要翻译: 用于将包含最终预制件的给定目标直径(D≤0)的光纤预制件的外包层的方法包括提供要包覆的初级预制件,并且通过在二氧化硅颗粒上投影并玻璃化沉积第一外包层 初级预制件用等离子体焰炬相对平移移动。 每个第一外包层具有给定的均匀厚度(d),并以给定的恒定的二氧化硅颗粒流速和给定的恒定的转换速度沉积。 该方法还包括检测大于给定阈值(S)的预型件直径(D SUB)和沉积具有剩余所需厚度的最终外包层(D <0> 以恒定的二氧化硅颗粒流速和降低的平移速度。 本发明的方法使得预成型件能够以提高的产量和高质量被有效地包覆。

    Method for forming an improved weld between a primary preform and a silica bar
    12.
    发明授权
    Method for forming an improved weld between a primary preform and a silica bar 有权
    在初级预制件和二氧化硅棒之间形成改进的焊接的方法

    公开(公告)号:US08613208B2

    公开(公告)日:2013-12-24

    申请号:US12056701

    申请日:2008-03-27

    IPC分类号: C03B23/207

    摘要: The invention relates to a method for welding one end of a primary preform and one end of a silica bar having different properties. The method includes the steps of projecting and fusing silica grain under a plasma torch onto an end of the primary preform and an end of the silica bar, and bringing into contact these respective ends to form an excellent weld between the primary preform and the silica bar. The invention provides a cost-effective way to secure a primary preform to a glass-working lathe support while reducing the risk of costly preform breakage.

    摘要翻译: 本发明涉及一种用于焊接初级预制件的一端和具有不同特性的二氧化硅棒的一端的方法。 该方法包括以下步骤:将等离子体焰炬下方的二氧化硅颗粒投影并熔化到初级预制件的端部和二氧化硅棒的端部上,并使其与这些端部接触以在初级预制件和二氧化硅棒之间形成优异的焊接 。 本发明提供了一种成本有效的方法来将初级预制件固定到玻璃加工车床支撑件上,同时降低了昂贵的预制件断裂的风险。

    Method for making a preform
    16.
    发明申请
    Method for making a preform 审中-公开
    制作预成型件的方法

    公开(公告)号:US20050144987A1

    公开(公告)日:2005-07-07

    申请号:US10978335

    申请日:2004-11-02

    IPC分类号: C03B37/012 C03B37/018

    摘要: A method for producing an optical fiber preform (100) consists in producing a primary preform (110); drawing out an end portion (115) of the primary preform (110) to produce a tail portion (115); thickening (120) the primary preform; and forming a cone (130) on the drawn out tail portion at the end of the primary preform. As a result of drawing out an end portion of the primary preform, the amount of primary preform required for cone formation is reduced while simultaneously optimizing cone length and angle appropriate to good initiation of fiber drawing.

    摘要翻译: 一种光纤预制棒(100)的制造方法,在于制造初级预制件(110)。 拉出初级预制件(110)的端部(115)以产生尾部(115); 增加(120)初级预制件; 以及在所述初级预型件的端部处的所述拉出的尾部上形成锥体(130)。 通过拉出初级预制件的端部部分,锥形成形所需的初级预制件的量减少,同时优化适于良好起始拉丝的锥体长度和角度。