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1. 发明授权

US06636684B1 Dispersive optical fiber using binary component silica 失效
标题翻译：使用二元组分二氧化硅的分散光纤
公开(公告)号：US06636684B1
公开(公告)日：2003-10-21
申请号：US09337761
申请日：1999-06-22
申请人： Un-chul Paek , Kyung-hwan Oh , Hong-seok Seo
发明人： Un-chul Paek , Kyung-hwan Oh , Hong-seok Seo
IPC分类号： G02B600
CPC分类号： G02B6/03611 , G02B6/03694 , G02B6/29368
摘要： A dispersive optical fiber having variable core-cladding refractive index differences depending on wavelength is provided. The dispersive optical fiber includes a core made of silica doped with a first dispersive material, and a cladding made of silica doped with a second dispersive material, wherein the refractive indices of the first and the second dispersive materials cross each other at a predetermined cross wavelength. The first and second dispersive materials include boron and fluorine. The dispersive optical fiber is attained by doping each dispersive material into the core and the cladding, respectively, thereby minimizing transmission loss, and is capable of being coupled to general optical fibers.
摘要翻译：提供了具有取决于波长的可变的芯 - 包层折射率差的分散光纤。分散光纤包括由掺杂有第一分散材料的二氧化硅制成的芯和由掺杂有第二分散材料的二氧化硅制成的包层，其中第一和第二分散材料的折射率以预定的交叉波长彼此交叉。第一和第二分散材料包括硼和氟。分散光纤通过将每个分散材料分别掺入到芯和包层中来实现，从而最小化传输损耗，并且能够耦合到通用光纤。

2. 发明授权

US06621968B1 Optical fiber for broadband optical devices and optical fiber devices using thereof 失效
标题翻译：用于宽带光学设备的光纤和使用它的光纤设备
公开(公告)号：US06621968B1
公开(公告)日：2003-09-16
申请号：US09601934
申请日：2000-12-19
申请人： Yeon Wan Koh , Jin Ha Kim , Bong Wan Lee , Seok Hyun Yun , Byoung Yoon Kim , Kyung Hwan Oh
发明人： Yeon Wan Koh , Jin Ha Kim , Bong Wan Lee , Seok Hyun Yun , Byoung Yoon Kim , Kyung Hwan Oh
IPC分类号： G02B616
CPC分类号： G02F1/0134 , G02B6/14 , G02B6/2793 , G02B6/29377
摘要： The present invention relates to an optical fiber having a normalized frequency applicable to a broadband optical device, and to a broadband, polarization-independent, low-loss optical fiber device made by using the aforementioned optical fiber. The optical fiber of the present invention has a normalized frequency value V, structural parameters of which including a core radius, a core refractive index and a cladding refractive index are adjusted to minimize the beat dispersion between first and second modes in a predetermined frequency range. Various optical fiber devices may be achieved if the aforementioned optical fiber is used along with acoustic wave generating means and a mode dropper or a mode selective coupler.
摘要翻译：本发明涉及具有适用于宽带光学装置的归一化频率的光纤，以及使用上述光纤制成的宽带，偏振无关的低损耗光纤装置。本发明的光纤具有归一化的频率值V，其结构参数包括芯半径，纤芯折射率和包层折射率，以使预定频率范围内的第一和第二模式之间的拍频差异最小化。如果上述光纤与声波产生装置以及模式滴管或模式选择耦合器一起使用，则可以实现各种光纤装置。

3. 发明授权

US06307994B1 Multi-cladding optical fiber, long-period optical fiber grating written therein and writing method thereof 失效
标题翻译：多层包层光纤，其中写入的长周期光纤光栅及其写入方法
公开(公告)号：US06307994B1
公开(公告)日：2001-10-23
申请号：US09338572
申请日：1999-06-23
申请人： Un-chul Paek , Kyung-hwan Oh , Young-geun Han
发明人： Un-chul Paek , Kyung-hwan Oh , Young-geun Han
IPC分类号： G02B602
CPC分类号： G02B6/03627 , G02B6/02095 , G02B6/021 , G02B6/02147
摘要： A multi-cladding optical fiber, a long-period optical fiber grating written in the optical fiber, and a writing method thereof are provided. The multi-cladding optical fiber includes a core made of germanium-doped silica (GeO2—SiO2), for guiding light, an inner cladding made of fluorine-doped silica (F—SiO2), the inner cladding having a refractive index smaller than that of the core and surrounding the core, and an outer cladding made of silica, the outer cladding having a refractive index smaller than that of the core and larger than that of the inner cladding and surrounding the inner cladding. Therefore, an optimized optical fiber can be designed. That is to say, an optical fiber having desired characteristics can be fabricated by adjusting at least one of the parameters including the amount of F doped into the inner cladding, the thickness of the inner cladding, the amount of GeO2 doped into the core, the composition of SiO2 in the outer cladding and the drawing tension of the optical fiber. Also, the refractive index of the core is periodically changed by periodically annealing the multi-cladding optical fiber, so that a stress-released long-period optical fiber grating can be obtained.
摘要翻译：提供多层包层光纤，写在光纤中的长周期光纤光栅及其写入方法。多包层光纤包括由锗掺杂二氧化硅（GeO 2 -SiO 2）制成的芯，用于引导光，由氟掺杂二氧化硅（F-SiO 2）制成的内包层，内包层的折射率小于的芯部并且围绕芯部，以及由二氧化硅制成的外包层，外包层的折射率小于芯的折射率，并且大于内包层的折射率并且围绕内包层。因此，可以设计优化的光纤。也就是说，具有期望特性的光纤可以通过调整至少一个参数来制造，所述参数包括掺杂到内部包层中的F的量，内部包层的厚度，掺入到芯中的GeO 2的量，外包层中SiO2的组成和光纤的拉伸张力。此外，通过周期性地退火多包层光纤来周期性地改变芯的折射率，从而可以获得应力释放的长周期光纤光栅。

4. 发明授权

US06307993B1 Optical fiber for wavelength division miltiplexing communications 有权
标题翻译：用于波分复用通信的光纤
公开(公告)号：US06307993B1
公开(公告)日：2001-10-23
申请号：US09152503
申请日：1998-09-14
申请人： Un-Chul Paek , Kyung-Hwan Oh , Ghie-Hugh Song , Xiao-Jun Li , Ki-Un Namkoong , Seung-Hun Oh
发明人： Un-Chul Paek , Kyung-Hwan Oh , Ghie-Hugh Song , Xiao-Jun Li , Ki-Un Namkoong , Seung-Hun Oh
IPC分类号： G02B622
CPC分类号： G02B6/03633 , G02B6/02271 , G02B6/0281 , G02B6/0286
摘要： An optical fiber for wavelength division multiplexing (WDM) communications, includes: an inner core having a predetermined refractive index, formed to a first predetermined radius from a central axis of the optical fiber, an outer core having a refractive index which is lower than the refractive index of the inner core and gets linearly smaller from its inner side to its outer side, formed on an outer side of the inner core to have a second predetermined radius, and a cladding formed on an outer side of the outer core to have a third predetermined radius.
摘要翻译：一种用于波分复用（WDM）通信的光纤，包括：具有从光纤的中心轴线形成到第一预定半径的具有预定折射率的内芯，外芯的折射率低于内芯的折射率从其内侧到外侧线性地变小，形成在内芯的外侧，具有第二预定半径;以及包层，形成在外芯的外侧，以具有第三预定半径。

5. 发明授权

US06233386B1 Optical fiber for use in Bragg grating and fiber Bragg grating using the same 失效
标题翻译：用于布拉格光栅的光纤和使用其的光纤布拉格光栅
公开(公告)号：US06233386B1
公开(公告)日：2001-05-15
申请号：US09337417
申请日：1999-06-22
申请人： Un-chul Paek , Kyung-hwan Oh
发明人： Un-chul Paek , Kyung-hwan Oh
IPC分类号： G02B602
CPC分类号： G02B6/03627 , G02B6/0219
摘要： An optical fiber for use in a fiber Bragg grating and a fiber Bragg grating using the same are provided. The optical fiber includes a core made of a material obtained by adding germanium oxide (GeO2) to silica (SiO2), for guiding light, and a cladding made by adding a material having a negative thermal expansion coefficient to silica (SiO2), the cladding having a refractive index lower than that of the core. Therefore, the change in Bragg wavelength depending on temperature can be minimized by forming the optical fiber using a material having a negative thermal expansion coefficient.
摘要翻译：提供了一种用于光纤布拉格光栅的光纤和使用其的光纤布拉格光栅。该光纤包括由通过向二氧化硅（SiO 2）中添加氧化锗（GeO 2）以引导光而获得的材料的芯和通过将具有负热膨胀系数的材料添加到二氧化硅（SiO 2），包层折射率低于芯的折射率。因此，通过使用具有负热膨胀系数的材料形成光纤，可以最小化布拉格波长随温度的变化。

6. 发明授权

US6053013A Apparatus and method for overcladding optical fiber preform rod and optical fiber drawing method 失效
标题翻译：用于包覆光纤预制棒的设备和方法以及光纤拉丝方法
公开(公告)号：US6053013A
公开(公告)日：2000-04-25
申请号：US049030
申请日：1998-03-27
申请人： Seung-Hun Oh , Ki-Un Namkoong , Man-Seok Seo , Un-Chul Paek , Kyung-Hwan Oh , Ghie-Hugh Song , Mun-Hyun Do , Young-Joo Chung
发明人： Seung-Hun Oh , Ki-Un Namkoong , Man-Seok Seo , Un-Chul Paek , Kyung-Hwan Oh , Ghie-Hugh Song , Mun-Hyun Do , Young-Joo Chung
IPC分类号： C03B23/043 , C03B23/045 , C03B37/012 , C03B37/018 , C03B37/027 , C03B37/029 , C03B37/028 , C03B37/10 , C03B37/07 , C03C25/02
CPC分类号： C03B37/01248 , C03B23/043 , C03B23/045 , C03B37/01211 , C03B37/01257 , C03B37/01807 , C03B37/027 , C03B37/029 , C03B2205/08 , Y02P40/57
摘要： There are provided an optical fiber rod overcladding apparatus and method, and an optical fiber drawing method. In the preform rod overcladding method, a preform rod is clamped in a top chuck and leveled, and a glass tube is mounted in a bottom chuck and leveled. The preform rod is coaxially inserted into a glass tube. Then, the glass tube is preheated by the furnace and heated by the burner until the glass tube reaches a softening point. The preform rod is completely sealed in the glass tube by sucking air in a clearance between the preform rod and the glass tube by application of a negative vacuum pressure. Thus, a preform is completed.
摘要翻译：提供了一种光纤棒外包装置和方法，以及一种光纤拉丝方法。在预成型棒包覆方法中，将预成型棒夹在顶卡盘中并平整，并将玻璃管安装在底卡盘中并平整。预制棒同轴地插入玻璃管中。然后，玻璃管由炉预热并通过燃烧器加热直到玻璃管达到软化点。通过施加负真空压力，将预制棒通过在预成型棒和玻璃管之间的间隙中吸入空气而完全密封在玻璃管中。因此，完成预成型件。

7. 发明申请

US20140178023A1 HYBRID PHOTONIC CRYSTAL FIBER, AND METHOD FOR MANUFACTURING SAME 审中-公开
标题翻译：混合光电晶体纤维及其制造方法
公开(公告)号：US20140178023A1
公开(公告)日：2014-06-26
申请号：US14236300
申请日：2012-01-11
申请人： Kyung-Hwan Oh , Ji-Young Park
发明人： Kyung-Hwan Oh , Ji-Young Park
IPC分类号： G02B6/02 , C03B37/15
CPC分类号： G02B6/02314 , C03B37/15 , G02B6/02328 , G02B6/032
摘要： The present invention relates to a hybrid photonic crystal fiber, into the core of which a functional material is injected. The hybrid photonic crystal fiber of the present invention comprises: a central hole having a diameter of 4 to 15 μm extending in the longitudinal direction; an inner cladding also formed in the longitudinal direction outside the central hole, having a hexagonal arrangement of air holes, each of which has a diameter of 2 to 5 μm and a lattice constant of 4.5 to 7 μm; an annular outer cladding surrounding the outer surface of the inner cladding; and a core formed by filling a functional material in some of the air holes including the central hole. According to the present invention, changes in the state, i.e. the liquid, liquid-crystal, or biofluid states, of the functional material that fills the core that has a variety of shapes may enable the modulation of light intensity, wavelength, phase, and polarization, and thus enable various photonic networks to be produced. The hybrid photonic crystal fiber of the present invention may serve as various optical sensors capable of sensing changes in refractive index caused by external stresses such as temperature and pressure. The hybrid photonic crystal fiber of the present invention may be used as a light source for a fluorescent dye laser for a visible ray zone using fluorescent dye, or for an ultra-wideband laser of 700 nm or higher using high nonlinear liquid.
摘要翻译：本发明涉及混合光子晶体光纤，其中注入功能材料的核心。本发明的混合光子晶体光纤包括：沿纵向延伸的直径为4至15μm的中心孔; 在中心孔的外侧沿长度方向形成的内包层，具有六边形排列的气孔，每个孔的直径为2〜5μm，晶格常数为4.5〜7μm。围绕所述内包层的外表面的环形外包层; 以及通过在包括中心孔的一些气孔中填充功能材料而形成的芯。根据本发明，填充具有各种形状的芯的功能材料的状态（即液体，液晶或生物流体状态）的变化可使得能够调制光强度，波长，相位和极化，从而能够产生各种光子网络。本发明的混合光子晶体光纤可以用作能够感测由诸如温度和压力的外部应力引起的折射率变化的各种光学传感器。可以使用本发明的混合光子晶体光纤作为使用荧光染料的可见光区域的荧光染料激光器的光源或者使用高非线性液体的700nm以上的超宽带激光器。

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