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1. 发明申请

US20070147753A1 Optical fiber and method for fabricating same 审中-公开
标题翻译：光纤及其制造方法
公开(公告)号：US20070147753A1
公开(公告)日：2007-06-28
申请号：US11516325
申请日：2006-09-06
申请人： Seho Park , Jin-Han Kim , Mun-Hyun Do , Sung-Wook Bang , Yun-Ho Kim , Jin-Haing Kim
发明人： Seho Park , Jin-Han Kim , Mun-Hyun Do , Sung-Wook Bang , Yun-Ho Kim , Jin-Haing Kim
IPC分类号： G02B6/02 , C03B37/07 , C03B37/02 , C03B37/025
CPC分类号： C03B37/01446 , C03B37/014 , C03B2201/31 , C03B2207/70 , G02B6/02 , G02B6/02271 , G02B6/02276
摘要： Disclosed is a method for fabricating an optical fiber having attenuation loss, in which non-uniformity of the attenuation loss in the lengthwise direction of the optical fiber is equal to or less than 0.05 dB/km in the wavelength band of 1383 nm and an average value of the attenuation loss is equal to or less than 0.35 dB/km. The method comprising the steps of (a) fabricating a soot preform while maintaining an average temperature of a core surface at a level equal to or less than 1000° C. and temperature variation of the core surface according to a growing length of the soot preform in a range of −10 to 10° C./cm, fabricating an optical fiber preform by dehydrating, consolidating and vitrifying the soot preform and (c) drawing the optical fiber from the optical fiber preform under a temperature range between 1900 to 2300° C.
摘要翻译：公开了一种制造具有衰减损耗的光纤的方法，其中在光纤的长度方向上的衰减损耗的不均匀性在1383nm的波长带中等于或小于0.05dB / km，平均值衰减损耗的值等于或小于0.35dB / km。该方法包括以下步骤：（a）制造烟灰预制件，同时将芯表面的平均温度维持在等于或小于1000℃的水平，并且根据烟炱预制件的生长长度，芯表面的温度变化在-10至10℃/ cm的范围内，通过使烟灰预制件脱水，固化和玻璃化制造光纤预制件，（c）在1900至2300℃的温度范围内从光纤预制件中拉出光纤 C。

2. 发明申请

US20070062220A1 Vapor axial deposition apparatus and vapor axial deposition method 审中-公开
标题翻译：蒸气轴向沉积装置和蒸气轴向沉积方法
公开(公告)号：US20070062220A1
公开(公告)日：2007-03-22
申请号：US11487846
申请日：2006-07-17
申请人： Sung-Wook Bang , Yeong-Seop Lee , Dong-Hi Lee
发明人： Sung-Wook Bang , Yeong-Seop Lee , Dong-Hi Lee
IPC分类号： C03B37/07 , G01N23/00 , C03B37/018 , G01N21/43
CPC分类号： C03B37/014 , C03B2207/62 , C03B2207/70
摘要： Disclosed is a vapor axial deposition apparatus. The vapor axial deposition apparatus includes a first torch, a growth size detecting unit and a controlling unit. The first torch deposits soot on a distal end of a soot preform aligned with a first axis, and is aligned with a second axis. The growth size detecting unit detects an image including a growing point of the soot preform and an end of the first torch. The controlling unit calculates a distance between the soot preform and the first torch along the second axis from the detected image, and moves the soot preform upward based on the calculated distance.
摘要翻译：公开了一种蒸气轴向沉积装置。蒸气轴向沉积装置包括第一割炬，生长尺寸检测单元和控制单元。第一焊炬在烟炱预制件的远端上与第一轴线对齐并与第二轴对准。生长尺寸检测单元检测包括烟炱预制件的生长点和第一炬的末端的图像。控制单元根据检测到的图像计算沿着第二轴线的烟炱预型件和第一炬之间的距离，并且基于计算出的距离向上移动烟炱预制件。

3. 发明授权

US06722162B2 Automatic quartz tube levelling device in optical fiber preform manufacturing system using modified chemical vapor deposition technique 有权
标题翻译：使用改进的化学气相沉积技术的光纤预制棒制造系统中的自动石英管调平装置
公开(公告)号：US06722162B2
公开(公告)日：2004-04-20
申请号：US10055843
申请日：2002-01-23
申请人： Sung-Wook Bang
发明人： Sung-Wook Bang
IPC分类号： C03B3707
CPC分类号： C03B37/01884
摘要： An automatic quartz-tube leveling device for automatically measuring the leveling state of an optical-fiber preform on an on-line basis using a modified-chemical-vapor deposition (MCVD) technique is disclosed. A quartz tube is disposed in a horizontal supporting element such as a lathe. A measuring device is provided with a light-emitting device and a light-receiving device, interposing the quartz tube, for measuring an upper eccentric value and a lower eccentric value along a length of the quartz tube. A controller receives the measured upper and lower eccentric values from the measuring device, compares the measured values with predetermined reference values, and specifies a necessary leveling span of the quartz tube. A transfer device then moves to a necessary leveling span of the quartz tube to carry out leveling of the quartz tube, under control of the controller.
摘要翻译：公开了一种使用改进的化学气相沉积（MCVD）技术在线地自动测量光纤预制件的调平状态的自动石英管调平装置。石英管设置在诸如车床的水平支撑元件中。测量装置设置有发光装置和光接收装置，插入石英管，用于沿着石英管的长度测量上偏心值和下偏心值。控制器接收来自测量装置的测量的上偏心值和下偏心值，将测量值与预定参考值进行比较，并指定石英管的必要调平范围。然后，转移装置移动到石英管的必要的调平跨度，以在控制器的控制下执行石英管的整平。

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