公开(公告)号：US06487880B1

公开(公告)日：2002-12-03

申请号：US09457392

申请日：1999-12-09

申请人： Sung-Koog Oh ,  Man-Seok Seo ,  Jin-Seong Yang ,  Mun-Hyun Do

发明人： Sung-Koog Oh ,  Man-Seok Seo ,  Jin-Seong Yang ,  Mun-Hyun Do

IPC分类号： C03B3707

CPC分类号： C03B37/01248 ,  C03B37/01257 ,  C03B37/01853 ,  C03B37/01869

摘要： Disclosed are an optical fiber preform manufacturing apparatus and method in which processes for shrinking and closing a deposited tube are conducted using a device suitable for those processes, which device is other than the device used in a deposition process for forming the deposited tube on the inner surface of a preform tube, thereby reducing the processing time while reducing the amount of OH penetrated from the preform tube into a vitreous component of the deposited tube, thereby achieving a reduction in OH loss. In accordance with the optical fiber preform manufacturing apparatus and method, operations are conducted which involve setting the heating temperature of a circular heater to a temperature lower than the softening point of a deposited tube, exhausting contaminants existing in the interior of the deposited tube while moving the circular heater at a desired temperature, setting the heating temperature of the circular heater to a temperature not lower than the softening point of the deposited tube, and shrinking and closing the deposited tube while moving the circular heater to a desired temperature.

摘要翻译： 公开了一种光纤预制棒的制造装置和方法，其中使用适用于这些工艺的装置进行用于收缩和沉积沉积管的工艺，所述装置不同于用于在内部形成沉积管的沉积工艺中使用的装置 从而减少处理时间，同时将从预成形管穿透的OH的量减少到沉积管的玻璃质成分中，从而实现OH损失的降低。 根据光纤预制棒的制造装置和方法，进行以下操作：将圆形加热器的加热温度设定为低于沉积管的软化点的温度，排出存在于沉积管内部的污染物，同时移动 在所需温度下的圆形加热器，将圆形加热器的加热温度设定为不低于沉积管的软化点的温度，以及在将圆形加热器移动到所需温度的同时收缩并沉积沉积的管。

公开(公告)号：US06840063B2

公开(公告)日：2005-01-11

申请号：US10059342

申请日：2002-01-31

申请人： Sung-Koog Oh ,  Man-Seok Seo ,  Jin-Seong Yang ,  Mun-Hyun Do

发明人： Sung-Koog Oh ,  Man-Seok Seo ,  Jin-Seong Yang ,  Mun-Hyun Do

IPC分类号： C03B37/027 ,  C03B37/012 ,  C03B37/018 ,  G02B6/00

CPC分类号： C03B37/01248 ,  C03B37/01257 ,  C03B37/01853 ,  C03B37/01869

摘要： An optical fiber preform manufacturing method whereby a clad layer and core layer are deposited on the inner surface of a preform tube for forming a deposited tube. One end of the deposited tube is shrunk and closed. The deposited tube which has a closed end is arranged extending vertically through a circular heater. A heat is applied to the deposited tube at a temperature lower than the softening point of a deposited tube, exhausting contaminants existing in the interior of the deposited tube while moving the circular heater. The heating temperature of the circular heater is then set to a temperature not lower than the softening point of the deposited tube-to shrink and close the deposited tube.

摘要翻译： 一种光纤预制棒的制造方法，其中包覆层和芯层沉积在用于形成沉积管的预成型管的内表面上。 沉积管的一端收缩并闭合。 具有封闭端的沉积管布置成垂直延伸通过圆形加热器。 在低于沉积管的软化点的温度下对沉积的管施加热量，在移动圆形加热器的同时排出存在于沉积管内部的污染物。 然后将圆形加热器的加热温度设定为不低于沉积管的软化点的温度 - 收缩并封闭沉积的管。

公开(公告)号：US06841004B2

公开(公告)日：2005-01-11

申请号：US09756340

申请日：2001-01-08

申请人： Sung-Koog Oh ,  Man-Seok Seo ,  Kyeong-Sup Kim

发明人： Sung-Koog Oh ,  Man-Seok Seo ,  Kyeong-Sup Kim

IPC分类号： G02B6/00 ,  C03C25/12 ,  G02B6/44 ,  B05C13/00

CPC分类号： C03C25/12

摘要： Disclosed is an optical fiber coating device for coating the outer circumference of the optical fiber with the coating material, in which the coating device is provided with and a gas provider for providing an environmental gas within the coating device, and a cooler for cooling down the environmental gas provided to the coater from the gas provider.

摘要翻译： 本发明公开了一种光纤涂敷装置，其特征在于，所述光纤涂布装置具有涂布装置和所述涂料装置内的环境气体用气体供给装置， 气体供应商提供给涂布机的环境气体。

公开(公告)号：US06530244B1

公开(公告)日：2003-03-11

申请号：US09493084

申请日：2000-01-28

申请人： Sung-Koog Oh ,  Man-Seok Seo

发明人： Sung-Koog Oh ,  Man-Seok Seo

IPC分类号： C03B37018

CPC分类号： G02B6/03694 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/24 ,  G02B6/03627 ,  Y02P40/57

摘要： An optical fiber preform and a fabrication method thereof. In the present invention, an outer OH-barrier and an inner OH-barrier free of P2O5 are deposited respectively between a substrate tube and a cladding layer and between the cladding layer and a core layer during a deposition process. In addition, a refractive index increases toward the center in the core layer.

摘要翻译： 一种光纤预制棒及其制造方法。 在本发明中，在沉积工艺期间，在衬底管和包覆层之间以及包覆层和芯层之间分别沉积外部OH-势垒和不含P 2 O 5的内部OH-阻挡层。 此外，折射率朝向芯层中心的中心增加。

公开(公告)号：US06279354B1

公开(公告)日：2001-08-28

申请号：US09229609

申请日：1999-01-13

申请人： Un-Chul Paek ,  Sung-Koog Oh ,  Man-Seok Seo ,  Kyu-Hwan Hwang

发明人： Un-Chul Paek ,  Sung-Koog Oh ,  Man-Seok Seo ,  Kyu-Hwan Hwang

IPC分类号： C03B544

CPC分类号： C03B37/02718 ,  C03B2205/55

摘要： A cooler of an optical fiber draw tower, situated below a melting furnace for melting a preform for an optical fiber, for cooling the optical fiber drawn from the preform melted in the melting furnace, includes at least one heat exchanger installed with a predetermined length surrounding the optical fiber drawn from the melting furnace, for cooling the drawn optical fiber. The heat exchanger is formed of a thermoelectric cooler (TEC) for taking electrical energy through one heat absorbing surface to emit heat to the other heat emitting surface and has a tubular shape in which the heat absorbing surface of the TEC surrounds the optical fiber drawn from the melting furnace along the drawing direction by a predetermined length, and the drawn optical fiber is cooled as it passes through the tubular TEC. Also, the cooler further includes an auxiliary cooler attached to the heat emitting surface of the TEC, for cooling the emitted heat. Therefore, the cooler can enhance the cooling effect, so that the drawing of the optical fiber can be sped up without increasing the height of the optical fiber draw tower.

摘要翻译： 位于用于熔化用于光纤的预成型件的熔化炉下方的光纤拉制塔的冷却器，用于冷却从在熔融炉中熔化的预制件中拉出的光纤，包括安装有预定长度的至少一个热交换器 从熔化炉中拉出的光纤用于冷却拉制的光纤。 热交换器由热电冷却器（TEC）形成，用于通过一个吸热表面获取电能以向另一个发热表面发射热量，并具有管状形状，其中TEC的吸热表面围绕从 熔融炉沿着拉伸方向预定长度，并且拉制的光纤在其通过管状TEC时被冷却。 此外，冷却器还包括附接到TEC的发热表面的辅助冷却器，用于冷却发射的热量。 因此，冷却器可以提高冷却效果，从而可以在不增加光纤拉制塔的高度的情况下加速光纤的拉伸。

公开(公告)号：US07120341B2

公开(公告)日：2006-10-10

申请号：US10963939

申请日：2004-10-13

申请人： Sung-Koog Oh ,  Ju-Chang Han ,  Yun-Geun Jang

发明人： Sung-Koog Oh ,  Ju-Chang Han ,  Yun-Geun Jang

IPC分类号： G02B6/02

CPC分类号： G02B6/02238 ,  G02B6/03644

摘要： An optical fiber for long-distance optical communication networks has a zero dispersion wavelength value in the range of 1560 to 1570 nm and a dispersion gradient value, at a wavelength band of 1550 nm, in the range of 0.055 to 0.075 ps/nm2/km.

摘要翻译： 用于长距离光通信网络的光纤具有在1560至1570nm范围内的零色散波长值和在1550nm波长带处的色散梯度值，范围为0.055至0.075ps / nm ^{2 / km。}

公开(公告)号：US07116876B2

公开(公告)日：2006-10-03

申请号：US10918570

申请日：2004-08-13

申请人： Yun-Geun Jang ,  Sung-Koog Oh ,  Ju-Chang Han

发明人： Yun-Geun Jang ,  Sung-Koog Oh ,  Ju-Chang Han

IPC分类号： G02B6/02 ,  H04J14/02

CPC分类号： G02B6/02238 ,  G02B6/02276 ,  G02B6/03644 ,  H04B10/2525

摘要： An optical fiber for an optical network is disclosed. The optical fiber includes a core having a core region having a first refractive index N1, and a refractive index depressed region surrounding the core region and having a second refractive index N2 that is lower than the first refractive index. A clad surrounds the core and having a third refractive index N4. The optical fiber has a zero-dispersion wavelength that is not less than 1555 nm and positioned in a wavelength range which does not exceed L-band. The optical fiber has negative dispersion values in C-band and positive dispersion values in L-band.

摘要翻译： 公开了一种用于光网络的光纤。 光纤包括具有第一折射率N 1 1核心区域的核心和围绕核心区域并具有第二折射率N 1/2的折射率凹陷区域， 低于第一折射率。 包层围绕芯并具有第三折射率N 4。 该光纤具有不小于1555nm的零色散波长并且位于不超过L波段的波长范围内。 光纤在C波段具有负色散值，在L波段中具有正色散值。

公开(公告)号：US07206485B2

公开(公告)日：2007-04-17

申请号：US10754027

申请日：2004-01-08

申请人： Sung-Koog Oh ,  Jae-Ho Lee

发明人： Sung-Koog Oh ,  Jae-Ho Lee

IPC分类号： G02B6/02 ,  G02B6/00

CPC分类号： C03B37/0122 ,  C03B2203/42 ,  G02B6/02357 ,  G02B6/02366 ,  G02B6/0238 ,  G02B6/028

摘要： A photonic crystal fiber (PCF) preform, from which a photonic crystal fiber is manufactured, includes a rod-shaped substrate with holes longitudinally formed therethrough in a photonic lattice structure, and material layers having at least two different indices of refraction. The material layers are disposed in the holes, respectively. Distribution of index of refraction of the photonic crystal fiber preform is controlled by arrangement of the material layers. Consequently, an optical fiber with very low optical loss, very low optical nonlinearity and excellent transmission characteristics can be easily manufactured, and an optical fiber with various characteristics, differing depending upon the lattice structure, can be realized.

摘要翻译： 制造光子晶体光纤的光子晶体光纤（PCF）预成型件包括具有沿光子晶格结构纵向形成的孔的棒状基板和具有至少两个不同折射率的材料层。 材料层分别设置在孔中。 通过材料层的布置来控制光子晶体纤维预制棒的折射率分布。 因此，可以容易地制造出具有非常低的光损耗，非常低的光学非线性和优异的透射特性的光纤，并且可以实现根据晶格结构而不同的各种特性的光纤。

公开(公告)号：US20050196115A1

公开(公告)日：2005-09-08

申请号：US10933135

申请日：2004-09-02

申请人： Young-Seok Kim ,  Sung-Koog Oh

发明人： Young-Seok Kim ,  Sung-Koog Oh

IPC分类号： G02B6/00 ,  G02B6/22

CPC分类号： G02B6/02395 ,  C03C25/1065 ,  G01M11/37

摘要： An optical fiber includes a core as a light signal transmission medium, a clad surrounding the core, a first coating layer which surrounds the clad and is formed of an UV-cured polymer material, and a second coating layer which surrounds the first coating layer and is formed of an UV-cured polymer material. The difference between the refraction index of the first coating layer and that of the second coating layer ranges from 0 (excluding 0) to 0.06.

摘要翻译： 光纤包括作为光信号传输介质的芯，围绕芯的包层，围绕包层并由UV固化的聚合物材料形成的第一涂层和围绕第一涂层的第二涂层和 由UV固化的聚合物材料形成。 第一涂层的折射率与第二涂层的折射率之差在0（不包括0）至0.06的范围内。

公开(公告)号：US06809805B2

公开(公告)日：2004-10-26

申请号：US10374893

申请日：2003-02-26

申请人： Jae-Ho Lee ,  Sung-Koog Oh

发明人： Jae-Ho Lee ,  Sung-Koog Oh

IPC分类号： G01N2100

CPC分类号： G01L1/242 ,  G01M11/088

摘要： The present invention relates to an apparatus for measuring the residual stress in an optical fiber which includes: a fixating unit for fixating an optical fiber with residual stresses to be measured therein; and a measuring unit comprising a light generator for generating a light for measuring the residual stresses in the optical fiber and a detector for detecting phase changes of the light that has been generated by the light generator; wherein the measuring unit measures the residual stresses in the optical fiber based on the phase changes of the light passed through the optical fiber, while the measuring unit is rotating along with the circumference of the optical fiber.

摘要翻译： 本发明涉及一种用于测量光纤中的残余应力的装置，该装置包括：用于固定待测量残余应力的光纤的固定单元; 以及测量单元，包括用于产生用于测量光纤中的残余应力的光的光发生器和用于检测由光发生器产生的光的相变的检测器; 其中，所述测量单元在所述测量单元与所述光纤的周边一起旋转的同时，基于通过所述光纤的光的相位变化来测量所述光纤中的残余应力。