公开(公告)号：US20050163434A1

公开(公告)日：2005-07-28

申请号：US10498846

申请日：2002-10-31

申请人： Young-Il Kwon ,  Sang-Joon Bae ,  Joon-Keun Lee ,  Myung-Ho Jang ,  Bong-Hoon Lee

发明人： Young-Il Kwon ,  Sang-Joon Bae ,  Joon-Keun Lee ,  Myung-Ho Jang ,  Bong-Hoon Lee

IPC分类号： G02B6/00 ,  C03B37/027 ,  C03B37/03 ,  C03B37/12 ,  G02B6/36

CPC分类号： C03B37/02745 ,  C03B37/032 ,  C03B2203/19 ,  C03B2203/36 ,  C03B2205/06

摘要： A method of applying spin to a coated optical fiber to be rotated on its longitudinal axis so that the optical fiber has an ultra-low PMD (Polarization Mode Dispersion) includes the steps of: guiding the coated optical fiber so as not to be deviated from a certain range off a drawing axis at a lower end of an optical fiber coating point; giving torque to the optical fiber by contacting the coated optical fiber with a driving roller which vibrates on the center of an axis substantially parallel to a drawing direction at a lower end of the guiding point; and adjusting an amplitude (A) of the driving roller and a distance (l) between the guiding point and the vibrating point so as to control an angle (θ) between the vibrating optical and the drawing axis. This makes it possible to control a spin rate (spins/m) of the optical fiber generated by rotation.

摘要翻译： 将旋转施加到被旋转的纵轴上的光纤的方法，使得光纤具有超低PMD（极化模式色散），包括以下步骤：引导涂覆的光纤，使其不会偏离 在光纤涂覆点的下端处的拉伸轴线的一定范围; 通过使涂覆的光纤与在引导点的下端基本上平行于拉伸方向的轴的中心振动的驱动辊接触来向光纤施加扭矩; 并且调节驱动辊的振幅（A）和引导点与振动点之间的距离（l），以便控制振动光学和牵引轴之间的角度（θ）。 这使得可以控制由旋转产生的光纤的旋转速率（自旋/ m）。

公开(公告)号：US07263263B2

公开(公告)日：2007-08-28

申请号：US10629893

申请日：2003-07-29

申请人： Chul-Min Kim ,  Myung-Ho Jang ,  Sang-Joon Bae ,  Young-Il Kwon ,  Won-Sang Yoo ,  Joon-Keun Lee

发明人： Chul-Min Kim ,  Myung-Ho Jang ,  Sang-Joon Bae ,  Young-Il Kwon ,  Won-Sang Yoo ,  Joon-Keun Lee

IPC分类号： G02B6/02

CPC分类号： G02B6/02285 ,  C03B37/0253 ,  C03B37/02745 ,  C03B37/032 ,  C03B2203/19 ,  C03B2203/36 ,  C03B2205/06 ,  G01M11/37 ,  G01N21/47

摘要： A method for monitoring a spin imparted on an optical fiber in order to reduce Polarization Mode Dispersion (PMD) includes the steps of imparting a spin on a high-temperature optical fiber which is drawn from a preform, photographing a dispersion pattern peculiar to the spun optical fiber with a camera from scattered light naturally generated by the spin imparted on the optical fiber, and displaying the photographed dispersion pattern. The method enables monitoring of rate and period of the spin imparted on the optical fiber on the basis of the displayed dispersion pattern.

摘要翻译： 为了减少偏振模色散（PMD），用于监测施加在光纤上的自旋的方法包括以下步骤：在从预成型件拉出的高温光纤上进行自旋，拍摄纺丝特有的分散图案 具有照相机的光纤由散射光自然产生，通过旋转赋予光纤，并显示拍摄的色散图案。 该方法能够基于所显示的色散图案来监视在光纤上施加的旋转的速率和周期。

公开(公告)号：US07823419B2

公开(公告)日：2010-11-02

申请号：US12365057

申请日：2009-02-03

申请人： Sang-Joon Bae ,  Young-Il Kwon ,  Joon-Keun Lee ,  Chul-Min Kim ,  Myung-Ho Jang

发明人： Sang-Joon Bae ,  Young-Il Kwon ,  Joon-Keun Lee ,  Chul-Min Kim ,  Myung-Ho Jang

IPC分类号： C03B37/029

CPC分类号： C03B37/029 ,  C03B2203/36 ,  C03B2205/81 ,  C03B2205/83 ,  C03B2205/90 ,  C03B2205/96 ,  C03B2205/98

摘要： A furnace for drawing an optical fiber includes a body having an upper and lower openings for supplying a preform and discharging a drawn optical fiber, a heating unit installed in the body for receiving and melting the preform, an atmosphere blocking tube installed to the lower opening for discharging the drawn optical fiber and blocking the optical fiber from the atmosphere, an upper introduction port formed at an upper portion of the body for introducing an inert gas toward the preform and partially discharged outside through a gap between the preform and the upper opening, a central and lower introduction ports formed at central and lower portions for introducing an inert gas into the body, a first flow guiding means for guiding the inert gas introduced through the central introduction port upward and then flowed down along a surface of the preform, and a second flow guiding means for guiding the inert gas introduced through the lower introduction port upward and then discharged outside through the atmosphere blocking tube along a surface of the drawn optical fiber.

摘要翻译： 用于拉制光纤的炉包括具有用于供应预成型件和排出拉制的光纤的上开口和下开口的主体，安装在本体中用于接收和熔化预成型件的加热单元，安装到下开口的气氛阻挡管 为了排出拉制的光纤并将光纤从大气中阻挡，形成在主体的上部的上部引入口用于向预成型件引入惰性气体，并通过预成型件和上部开口之间的间隙部分地排出外部， 形成在中部和下部的用于将惰性气体引入体内的中心和下部引入口，用于引导通过中心引入口引入的惰性气体沿着预成型件的表面向下流动的第一流动引导装置，以及 用于引导通过下引入口引入的惰性气体然后排出的第二流引导装置 沿着拉制的光纤的表面通过气氛阻挡管。

公开(公告)号：US20090145169A1

公开(公告)日：2009-06-11

申请号：US12365057

申请日：2009-02-03

申请人： Sang-Joon Bae ,  Young-II Kwon ,  Joon-Keun Lee ,  Chul-Min Kim ,  Myung-Ho Jang

发明人： Sang-Joon Bae ,  Young-II Kwon ,  Joon-Keun Lee ,  Chul-Min Kim ,  Myung-Ho Jang

IPC分类号： C03B37/02 ,  C03B37/012 ,  C03B5/00

CPC分类号： C03B37/029 ,  C03B2203/36 ,  C03B2205/81 ,  C03B2205/83 ,  C03B2205/90 ,  C03B2205/96 ,  C03B2205/98

摘要： A furnace for drawing an optical fiber includes a body having an upper and lower openings for supplying a preform and discharging a drawn optical fiber, a heating unit installed in the body for receiving and melting the preform, an atmosphere blocking tube installed to the lower opening for discharging the drawn optical fiber and blocking the optical fiber from the atmosphere, an upper introduction port formed at an upper portion of the body for introducing an inert gas toward the preform and partially discharged outside through a gap between the preform and the upper opening, a central and lower introduction ports formed at central and lower portions for introducing an inert gas into the body, a first flow guiding means for guiding the inert gas introduced through the central introduction port upward and then flowed down along a surface of the preform, and a second flow guiding means for guiding the inert gas introduced through the lower introduction port upward and then discharged outside through the atmosphere blocking tube along a surface of the drawn optical fiber.

摘要翻译： 用于拉制光纤的炉包括具有用于供应预成型件和排出拉制的光纤的上开口和下开口的主体，安装在本体中用于接收和熔化预成型件的加热单元，安装到下开口的气氛阻挡管 为了排出拉制的光纤并将光纤从大气中阻挡，形成在主体的上部的上部引入口用于向预成型件引入惰性气体，并通过预成型件和上部开口之间的间隙部分地排出外部， 形成在中部和下部的用于将惰性气体引入体内的中心和下部引入口，用于引导通过中心引入口引入的惰性气体沿着预成型件的表面向下流动的第一流动引导装置，以及 用于引导通过下引入口引入的惰性气体然后排出的第二流引导装置 沿着拉制的光纤的表面通过气氛阻挡管。