公开(公告)号：US20110056245A1

公开(公告)日：2011-03-10

申请号：US12945133

申请日：2010-11-12

申请人： James William Fleming ,  Siu-Ping Hong ,  Paul Francis Glodis ,  Thomas John Miller ,  Zhi Zhou ,  David Kalish ,  Shunhe Xiong

发明人： James William Fleming ,  Siu-Ping Hong ,  Paul Francis Glodis ,  Thomas John Miller ,  Zhi Zhou ,  David Kalish ,  Shunhe Xiong

IPC分类号： C03C25/68 ,  B29D11/00

CPC分类号： C03B37/01225 ,  C03B37/01228 ,  C03B37/01861 ,  C03B37/027 ,  C03B37/02745 ,  C03B2203/36 ,  C03B2205/40 ,  C03B2205/72

摘要： Methods for modifying preform core ovality during and subsequent to the formation of an optical fiber preform. After MCVD deposition forms the core rod, but prior to overcladding of the core rod, the code rod may be etched to change its ovality. In order to etch the core rod, the core rod may be mounted to lathe, rotated by at least two rotors, and subjected to a heat source. Additionally, one of the at least two rotors may be phase-shifted from another one of the at least two rotors after the core rod is mounted on the lathe.

摘要翻译： 在形成光纤预制件期间和之后修改预成型坯椭圆度的方法。 在MCVD沉积后形成芯棒，但是在芯棒的外包层之前，可以蚀刻编码棒以改变其椭圆度。 为了蚀刻芯棒，芯棒可以安装到车床上，旋转至少两个转子，并经受热源。 此外，在将芯棒安装在车床上之后，至少两个转子中的一个可以从至少两个转子中的另一个转向相移。

公开(公告)号：US07946133B2

公开(公告)日：2011-05-24

申请号：US12945133

申请日：2010-11-12

申请人： James William Fleming ,  Siu-Ping Hong ,  Paul Francis Glodis ,  Thomas John Miller ,  Zhi Zhou ,  David Kalish ,  Shunhe Xiong

发明人： James William Fleming ,  Siu-Ping Hong ,  Paul Francis Glodis ,  Thomas John Miller ,  Zhi Zhou ,  David Kalish ,  Shunhe Xiong

IPC分类号： C03B37/012

CPC分类号： C03B37/01225 ,  C03B37/01228 ,  C03B37/01861 ,  C03B37/027 ,  C03B37/02745 ,  C03B2203/36 ,  C03B2205/40 ,  C03B2205/72

摘要： Methods for modifying preform core ovality during and subsequent to the formation of an optical fiber preform. After MCVD deposition forms the core rod, but prior to overcladding of the core rod, the code rod may be etched to change its ovality. In order to etch the core rod, the core rod may be mounted to lathe, rotated by at least two rotors, and subjected to a heat source. Additionally, one of the at least two rotors may be phase-shifted from another one of the at least two rotors after the core rod is mounted on the lathe.

摘要翻译： 在形成光纤预制件期间和之后修改预成型坯椭圆度的方法。 在MCVD沉积后形成芯棒，但是在芯棒的外包层之前，可以蚀刻编码棒以改变其椭圆度。 为了蚀刻芯棒，芯棒可以安装到车床上，旋转至少两个转子，并经受热源。 此外，在将芯棒安装在车床上之后，至少两个转子中的一个可以从至少两个转子中的另一个转向相移。

公开(公告)号：US6105396A

公开(公告)日：2000-08-22

申请号：US115783

申请日：1998-07-14

申请人： Paul Francis Glodis ,  Charles Francis Gridley ,  Donald Paul Jablonowski ,  David Kalish ,  Kenneth Lee Walker

发明人： Paul Francis Glodis ,  Charles Francis Gridley ,  Donald Paul Jablonowski ,  David Kalish ,  Kenneth Lee Walker

IPC分类号： C03C3/04 ,  C03B37/012 ,  C03B37/018 ,  C03B37/027

CPC分类号： C03B37/01211 ,  C03B37/01869 ,  C03B37/01884 ,  C03B37/01892 ,  C03B2201/02 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2203/24

摘要： A large optical preform 303 is made by a modified chemical vapor deposition (MCVD) process by depositing successive layers of core and cladding materials onto the inside surface of a rotating glass tube 33 having a hydroxyl ion (OH.sup.-) level that is less than 0.5 parts per million (ppm) by weight. The tube is then collapsed inwardly to form a core rod 301 in which the deposited core material 31 has a diameter that is greater than about 5 millimeters and the deposited cladding material 32 has an outside diameter that is less than about 15 millimeters. A machine-vision system 140, 150, 160 monitors and controls the diameter of the glass tube by regulating the pressure within the tube. Moreover, the machine-vision system monitors and controls the straightness of the tube by varying its rotational speed according to angular position. After the core rod 301 is formed, it is plasma etched to remove contaminants, and then overclad with two glass jackets 34, 35 having a hydroxyl ion (OH.sup.-) level that is less than 1.0 ppm by weight to create a large preform 303 from which about 400 kilometers of singlemode optical fiber can be drawn per meter of length.

摘要翻译： 通过改进的化学气相沉积（MCVD）工艺，通过将核心和包层材料的连续层沉积到具有小于0.5的羟基离子（OH-）水平的旋转玻璃管33的内表面上来制造大型光学预成型件303 百万分之几（ppm）（重量）。 管然后向内折叠以形成芯棒301，其中沉积的芯材料31具有大于约5毫米的直径，并且沉积的包层材料32具有小于约15毫米的外径。 机器视觉系统140,150,160通过调节管内的压力来监视和控制玻璃管的直径。 此外，机器视觉系统通过根据角度位置改变其转速来监测和控制管的平直度。 在形成芯棒301之后，将其等离子体蚀刻以除去污染物，然后用两个小于1.0重量ppm的羟基离子（OH-）水平的两个玻璃外套34,35包覆，以从 每米长度可以绘制约400公里的单模光纤。

公开(公告)号：US6122935A

公开(公告)日：2000-09-26

申请号：US112069

申请日：1998-07-08

申请人： Paul Francis Glodis ,  Katherine Theresa Nelson ,  Kim Willard Womack ,  Man Fei Yan

发明人： Paul Francis Glodis ,  Katherine Theresa Nelson ,  Kim Willard Womack ,  Man Fei Yan

IPC分类号： C03B37/018 ,  C03B37/027

CPC分类号： C03B37/01807 ,  C03B37/01815 ,  C03B2201/31 ,  C03B2207/66 ,  Y02P40/57

摘要： Bubble-free core glass can be deposited at relatively high rate (e.g., >0.3 gm SiO.sub.2 /minute, preferably 0.6 gm SiO.sub.2 /minute or more) by MCVD if the deposition conditions are appropriately selected. For instance, a relatively high torch traverse speed, a relatively low sintering temperature, and/or relatively low gas flow rates can facilitate high rate deposition of bubble-free glass. By way of example, conditions are disclosed that yielded essentially bubble-free core glass (.DELTA.=0.35%) at a rate of 1 gm SiO.sub.2 /minute.

摘要翻译： 如果适当选择沉积条件，则可以通过MCVD以相对高的速率（例如，> 0.3gm SiO 2 /分钟，优选0.6gm SiO 2 /分钟或更多）沉积无气泡芯玻璃。 例如，相对较高的割炬横移速度，相对低的烧结温度和/或相对低的气体流速可以促进无气泡玻璃的高速率沉积。 作为示例，公开了以1g SiO 2 /分钟的速率产生基本上无气泡的芯玻璃（DELTA = 0.35％）的条件。