公开(公告)号：US20050117869A1

公开(公告)日：2005-06-02

申请号：US10823861

申请日：2004-04-14

申请人： Sung-Koog Oh ,  Jae-Ho Lee ,  Seung-Hui Lee

发明人： Sung-Koog Oh ,  Jae-Ho Lee ,  Seung-Hui Lee

IPC分类号： G02B6/02 ,  B29D11/00 ,  G02B6/00 ,  G02B6/028 ,  G02B6/036

CPC分类号： G02B6/02357 ,  B29D11/00721 ,  G02B6/02038

摘要： The present invention provides a plastic optical fiber, which enables the distributions of refractive indices to be adjusted easily, and a method for manufacturing a plastic optical fiber perform. The plastic optical fiber perform includes a substrate having one or more holes, and one or more materials provided in the holes for a refractive index adjustment purpose. The distributions of refractive indices of the optical fiber preform are manipulated by adjusting the arrangement types, distributions, and the number of holes formed in the substrate and refractive indices of the materials used for refractive index adjustment.

摘要翻译： 本发明提供一种塑料光纤，其能够容易地调节折射率的分布，并且制造塑料光纤的方法。 塑料光纤执行包括具有一个或多个孔的基板和设置在用于折射率调整目的的孔中的一种或多种材料。 通过调整衬底中形成的孔的布置类型，分布和数量以及用于折射率调节的材料的折射率来调节光纤预制棒的折射率分布。

公开(公告)号：US20050110173A1

公开(公告)日：2005-05-26

申请号：US10824239

申请日：2004-04-14

申请人： Seung-Hui Lee ,  Sung-Koog Oh

发明人： Seung-Hui Lee ,  Sung-Koog Oh

IPC分类号： G02B6/00 ,  B29D11/00 ,  G02B6/028 ,  G02B6/036

CPC分类号： G02B6/02038 ,  B29D11/00663 ,  G02B6/03638

摘要： An apparatus and method for fabricating a plastic optical fiber are disclosed. In the fabricating apparatus, a first container is provided to separately contain the refractive index control materials including at least a core material. The refractive control materials have different refractive indices. A second container contains a clad material having a different refractive index from the core material. A crosshead flows down the refractive index control materials and the clad material introduced from the first and second containers by physical extrusion, while restricting the flow of the refractive index control materials and clad materials to a predetermined radius. A rotator mixes the extruded refractive index control and clad materials concentrically perpendicular to an extrusion direction.

摘要翻译： 公开了一种用于制造塑料光纤的装置和方法。 在制造装置中，提供第一容器以分开容纳至少包括芯材料的折射率控制材料。 折射控制材料具有不同的折射率。 第二容器包含具有与芯材料不同的折射率的复合材料。 十字头通过物理挤出将折射率控制材料和从第一和第二容器引入的包层材料向下流动，同时将折射率控制材料和包覆材料的流动限制在预定半径。 旋转体将挤出的折射率控制和包覆材料与挤出方向垂直地同心地混合。

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：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：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。

公开(公告)号：US06678433B2

公开(公告)日：2004-01-13

申请号：US09939877

申请日：2001-08-27

申请人： Jin-Han Kim ,  Sung-Koog Oh ,  Yong-Woo Park ,  Un-Chul Paek ,  Dug-Young Kim

发明人： Jin-Han Kim ,  Sung-Koog Oh ,  Yong-Woo Park ,  Un-Chul Paek ,  Dug-Young Kim

IPC分类号： G02B626

CPC分类号： G01M11/088 ,  G01L1/242

摘要： An apparatus and method for measuring residual stress and photoelastic effect of an optical fiber is disclosed. The apparatus includes a rotating light diffuser for providing temporally averaged uniform image by restraining spatial coherence of light emitted from a light source to be completely scattered, a collecting lens for aligning the light passed through the rotating light diffuser in an optical fiber, a linear birefringence device for linearly controlling the polarization state of the aligned light input from the collecting lens, a condenser for condensing the light passed through the linear birefringence device on a place where the optical fiber is located, a fixed polarizer for transforming the polarization state of the light passed through the optical fiber to the intensity distribution by allowing the light emitted from the linear birefringence device to transmit the optical fiber, an objective lens for obtaining a magnified optical fiber image having the intensity distribution of the light transmitted the optical fiber, and a unit for measuring transmittance variation given to the optical fiber depending on locations.

摘要翻译： 公开了一种用于测量光纤的残余应力和光弹性效应的装置和方法。 该装置包括旋转光漫射器，用于通过抑制从光源发射的光完全散射的空间相干性来提供时间上均匀的图像，用于将通过旋转光扩散器的光对准在光纤中的聚光透镜，线性双折射 用于线性控制从收集透镜输入的对准光的偏振状态的装置，用于将通过线性双折射装置的光聚光在光纤所处的位置的聚光器，用于变换光的偏振状态的固定偏振器 通过允许从线性双折射装置发射的光透射光纤而使光纤通过光强分布，用于获得具有透射光纤的光的强度分布的放大光纤图像的物镜和单元 用于测量给予操作的透射率变化 取决于位置。

公开(公告)号：US07088897B2

公开(公告)日：2006-08-08

申请号：US10783244

申请日：2004-02-20

申请人： Young-Seok Kim ,  Sung-Koog Oh ,  Jae-Ho Lee

发明人： Young-Seok Kim ,  Sung-Koog Oh ,  Jae-Ho Lee

IPC分类号： G02B6/02 ,  G02B6/22

CPC分类号： G02B6/245 ,  G02B6/02395

摘要： A double-coated optical fiber and method includes providing a core that serves as a light transmission medium. A cladding surrounds the core and has a smaller reflective index than the core. A primary coating layer is formed of a UV-cured polymer around the clad, and a secondary coating layer is formed of a UV-cured polymer around the primary coating layer, to a thickness ranging from about 22 to 37.5 μm in order to obtain a coating strip force ranging from about 1.0 to 1.63 N and a dynamic stress corrosion parameter ranging from 20 to 29. The primary and secondary coating layers can be formed by a wet on wet or wet on dry process.

摘要翻译： 双层光纤和方法包括提供用作光传输介质的芯。 包层围绕核心并且具有比核心更小的反射指数。 初级涂层由包层周围的紫外线固化聚合物形成，第二涂层由主涂层周围的紫外线固化聚合物形成，厚度范围为22-37.5μm，以获得 涂层条带力范围为约1.0至1.63N，动态应力腐蚀参数为20至29.初级和次级涂层可以通过湿法或湿法干法形成。