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1. 发明授权

US09121995B2 Optical fiber having holes 有权
标题翻译：具有孔的光纤
公开(公告)号：US09121995B2
公开(公告)日：2015-09-01
申请号：US13559207
申请日：2012-07-26
申请人： Shoji Tanigawa , Katsuhiro Takenaga , Shoichiro Matsuo , Takashi Matsui , Taiji Sakamoto , Kyouzou Tsujikawa , Shigeru Tomita
发明人： Shoji Tanigawa , Katsuhiro Takenaga , Shoichiro Matsuo , Takashi Matsui , Taiji Sakamoto , Kyouzou Tsujikawa , Shigeru Tomita
IPC分类号： G02B6/036 , G02B6/032 , G02B6/02
CPC分类号： G02B6/02347 , G02B6/02333 , G02B6/03627
摘要： Each of a first clad region (12) and a second clad region (13) has holes (12a, 13a) which have identical diameters and are periodically formed so that the first clad region (12) and the second clad region (13) each have an effective refractive index lower than a refractive index of a core region (11), the effective refractive index of the first clad region (12) being lower than that of the second clad region (13).
摘要翻译：第一覆盖区域（12）和第二覆盖区域（13）中的每一个具有相同直径的孔（12a，13a），并且周期性地形成，使得第一覆盖区域（12）和第二覆盖区域（13）各自具有低于芯区域（11）的折射率的有效折射率，所述第一包层区域（12）的有效折射率低于所述第二包层区域（13）的有效折射率。

2. 发明授权

US09562827B2 Measuring method of longitudinal distribution of bending loss of optical fiber, measuring method of longitudinal distribution of actual bending loss value of optical fiber, test method of optical line, manufacturing method of optical fiber cable, manufacturing method of optical fiber cord, and manufacturing method of optical fiber 有权
标题翻译：光纤弯曲损耗的纵向分布测量方法，光纤实际弯曲损耗值的纵向分布测量方法，光线路测试方法，光纤电缆的制造方法，光纤线的制造方法及其制造方法光纤
公开(公告)号：US09562827B2
公开(公告)日：2017-02-07
申请号：US13213506
申请日：2011-08-19
申请人： Shoji Tanigawa , Itaru Ishida , Shoichiro Matsuo , Toshio Kurashima , Kazuhide Nakajima , Tomoya Shimizu , Takashi Matsui , Yukihiro Goto
发明人： Shoji Tanigawa , Itaru Ishida , Shoichiro Matsuo , Toshio Kurashima , Kazuhide Nakajima , Tomoya Shimizu , Takashi Matsui , Yukihiro Goto
IPC分类号： G01M11/00
CPC分类号： G01M11/39 , G01M11/3145
摘要： A measuring method of a longitudinal distribution of bending loss of an optical fiber includes calculating an arithmetical mean value I(x) from two backscattering light intensities of two backscattering light at a position x obtained by bidirectional OTDR measurement of the optical fiber; and obtaining a bending loss value at the position x from a mode field diameter 2W(x) and a relative refractive index difference Δ(x) at the position x calculated from the arithmetical mean value.
摘要翻译：光纤的弯曲损耗的纵向分布的测量方法包括从通过光纤的双向OTDR测量获得的位置x处的两个后向散射光的两个后向散射光强度计算算术平均值I（x）; 并根据算术平均值计算的位置x处的模场直径2W（x）和相对折射率差Δ（x）在位置x处获得弯曲损耗值。

3. 发明授权

US09175946B2 Measuring method of hole diameter, hole position, hole surface roughness, or bending loss of holey optical fiber, manufacturing method of holey optical fiber, and test method of optical line of holey optical fiber 有权
标题翻译：多孔光纤的孔径，孔位置，孔表面粗糙度或弯曲损耗的测量方法，多孔光纤的制造方法以及多孔光纤的光学线路的测试方法
公开(公告)号：US09175946B2
公开(公告)日：2015-11-03
申请号：US13213328
申请日：2011-08-19
申请人： Itaru Ishida , Shoji Tanigawa , Shoichiro Matsuo , Toshio Kurashima , Kazuhide Nakajima , Tomoya Shimizu , Takashi Matsui , Yukihiro Goto
发明人： Itaru Ishida , Shoji Tanigawa , Shoichiro Matsuo , Toshio Kurashima , Kazuhide Nakajima , Tomoya Shimizu , Takashi Matsui , Yukihiro Goto
IPC分类号： G01N21/00 , H04B17/00 , G01B11/08 , G01N21/958 , G01N21/954 , G01B11/24 , G01B11/30
CPC分类号： G01B11/08 , G01B11/24 , G01B11/30 , G01B11/303 , G01B11/306 , G01N21/954 , G01N21/958
摘要： A measuring method of a hole diameter of a holey optical fiber includes calculating an arithmetical mean value I(x) from two backscattering light intensities at a position x of two backscattering light waveforms of the holey optical fiber, in which the two backscattering light waveforms are obtained by OTDR measurement; and obtaining the hole diameter at the position x, based on a correlation between an arithmetical mean value I(x) and an hole diameter of the holey optical fiber that is obtained in advance.
摘要翻译：多孔光纤的孔径的测量方法包括从多孔光纤的两个后向散射光波形的位置x处的两个后向散射光强度计算算术平均值I（x），其中两个后向散射光波形是通过OTDR测量获得; 并且基于预先获得的有孔光纤的算术平均值I（x）和孔径之间的相关性来获得位置x处的孔直径。

4. 发明授权

US08660396B2 Multi-cladding optical fiber, optical fiber module, fiber laser, and fiber amplifier 有权
标题翻译：多层包层光纤，光纤模块，光纤激光器和光纤放大器
公开(公告)号：US08660396B2
公开(公告)日：2014-02-25
申请号：US13216885
申请日：2011-08-24
申请人： Shoji Tanigawa , Kentaro Ichii , Katsuhiro Takenaga , Kunimasa Saitoh
发明人： Shoji Tanigawa , Kentaro Ichii , Katsuhiro Takenaga , Kunimasa Saitoh
IPC分类号： G02B6/02
CPC分类号： G02B6/03638 , G02B6/02033 , G02B6/14 , H01S3/06704 , H01S3/06733
摘要： Provided is a multi-cladding optical fiber which includes: a core with an average refractive index n1; and a cladding including an inner cladding with an average refractive index n2 formed on the periphery of the core, an intermediate cladding with an average refractive index n3 formed on the periphery of the inner cladding, and an outer cladding with an average refractive index n4 formed on the periphery of the intermediate cladding where n1>n2>n3>n4. Two or more axisymmetric modes exist in the core at a wavelength of the signal light; the two or more axisymmetric modes including a fundamental mode and at least a high-order mode. When the fiber is bent at a predetermined bending diameter, the high-order mode in the core disperses within the inner cladding due to coupling with an inner cladding mode, so that only the fundamental mode substantially propagates through the core.
摘要翻译：提供一种多包层光纤，其包括：具有平均折射率n1的芯; 以及形成在芯的周边上的具有平均折射率n2的内包层的包层，形成在内包层的周边上的平均折射率n3的中间包层和形成有平均折射率n4的外包层在中间包层的周边，其中n1> n2> n3> n4。核心在信号光的波长处存在两个或多个轴对称模式; 所述两个或多个轴对称模式包括基本模式和至少高阶模式。当纤维以预定弯曲直径弯曲时，由于与内包层模式的耦合，芯中的高阶模分散在内包层内，使得只有基本模式基本上传播通过芯。

5. 发明申请

US20130044989A1 METHOD OF PRODUCING PREFORM FOR COUPLED MULTI-CORE FIBER, METHOD OF PRODUCING COUPLED MULTI-CORE FIBER, AND COUPLED MULTI-CORE FIBER 有权
公开(公告)号：US20130044989A1
公开(公告)日：2013-02-21
申请号：US13587189
申请日：2012-08-16
申请人： Shoji Tanigawa , Katsuhiro Takenaga
发明人： Shoji Tanigawa , Katsuhiro Takenaga
IPC分类号： G02B6/02 , C03B37/027 , C03B37/012
CPC分类号： G02B6/02042 , C03B37/01222 , C03B37/02754 , C03B2201/02 , C03B2201/12 , C03B2201/20 , C03B2201/31 , C03B2203/22 , C03B2203/26 , C03B2203/34 , C03B2205/14
摘要： Provided is a method of producing a preform 10P for a coupled multi-core fiber including: an arranging process P1 for arranging a plurality of core glass bodies 11R and a clad glass body 12R in such a way that the plurality of core glass bodies 11R are surrounded by the clad glass body 12R; and a collapsing process P2 for collapsing a gap between the core glass bodies 11R and the clad glass body 12R, wherein the respective core glass bodies 11R have outer regions 16 having a predetermined thickness from the periphery surfaces and made of silica glass undoped with germanium, and the clad glass body 12R is made of silica glass having a refractive index lower than a refractive index of the outer regions of the core glass bodies 11R.

6. 发明授权

US08750663B2 Coupled multicore fiber 有权
标题翻译：耦合多芯纤维
公开(公告)号：US08750663B2
公开(公告)日：2014-06-10
申请号：US13587173
申请日：2012-08-16
申请人： Shoji Tanigawa , Katsuhiro Takenaga
发明人： Shoji Tanigawa , Katsuhiro Takenaga
IPC分类号： G02B6/36 , G02B6/02 , C03B37/012 , G02B6/14 , G02B6/28 , G02B6/036 , G02B6/028
CPC分类号： G02B6/02042 , C03B37/01222 , C03B2201/86 , C03B2203/22 , C03B2203/26 , C03B2203/34 , G02B6/0288 , G02B6/03633 , G02B6/14 , G02B6/2804
摘要： A coupled multi-core fiber 10 includes a plurality of cores 11 and a clad 12 surrounding the plurality of cores 11, wherein the plurality of cores 11 are arranged in such a way that periphery surfaces of the adjacent cores 11 contact with each other, each of the cores 11 is made to have a refractive index higher than the clad 12 and includes: an outer region 16 having a predetermined thickness from the periphery surface; and an inner region 15 made to have a higher refractive index than the outer region 16 and surrounded by the outer region 16.
摘要翻译：耦合的多芯光纤10包括多个芯11和围绕多个芯11的包层12，其中多个芯11以相邻芯11的周边表面彼此接触的方式布置，每个芯11的折射率高于包层12，并且包括：具有从外围表面预定厚度的外部区域16; 以及具有比外部区域16更高的折射率并被外部区域16包围的内部区域15。

7. 发明授权

US08971684B2 Method of producing preform for coupled multi-core fiber, method of producing coupled multi-core fiber, and coupled multi-core fiber 有权
标题翻译：制造耦合多芯光纤预制棒的方法，制造耦合多芯光纤的方法和耦合多芯光纤
公开(公告)号：US08971684B2
公开(公告)日：2015-03-03
申请号：US13587189
申请日：2012-08-16
申请人： Shoji Tanigawa , Katsuhiro Takenaga
发明人： Shoji Tanigawa , Katsuhiro Takenaga
IPC分类号： G02B6/036 , G02B6/255 , C03B37/012 , C03B37/027 , G02B6/02
CPC分类号： G02B6/02042 , C03B37/01222 , C03B37/02754 , C03B2201/02 , C03B2201/12 , C03B2201/20 , C03B2201/31 , C03B2203/22 , C03B2203/26 , C03B2203/34 , C03B2205/14
摘要： Provided is a method of producing a preform 10P for a coupled multi-core fiber including: an arranging process P1 for arranging a plurality of core glass bodies 11R and a clad glass body 12R in such a way that the plurality of core glass bodies 11R are surrounded by the clad glass body 12R; and a collapsing process P2 for collapsing a gap between the core glass bodies 11R and the clad glass body 12R, wherein the respective core glass bodies 11R have outer regions 16 having a predetermined thickness from the periphery surfaces and made of silica glass undoped with germanium, and the clad glass body 12R is made of silica glass having a refractive index lower than a refractive index of the outer regions of the core glass bodies 11R.
摘要翻译：提供一种制造用于耦合的多芯光纤的预成型件10P的方法，包括：布置过程P1，其布置多个芯玻璃体11R和包层玻璃体12R，使得多个芯玻璃体11R为被包层玻璃体12R包围; 以及用于塌缩芯玻璃体11R与包层玻璃体12R之间的间隙的塌陷处理P2，其中各个芯玻璃体11R具有从外围表面预定厚度的外部区域16，并且由锗未掺杂的石英玻璃制成，并且包层玻璃体12R由折射率低于芯玻璃体11R的外部区域的折射率的石英玻璃制成。

8. 发明申请

US20130044988A1 COUPLED MULTICORE FIBER 有权
标题翻译：耦合多光纤
公开(公告)号：US20130044988A1
公开(公告)日：2013-02-21
申请号：US13587173
申请日：2012-08-16
申请人： Shoji Tanigawa , Katsuhiro Takenaga
发明人： Shoji Tanigawa , Katsuhiro Takenaga
IPC分类号： G02B6/036
CPC分类号： G02B6/02042 , C03B37/01222 , C03B2201/86 , C03B2203/22 , C03B2203/26 , C03B2203/34 , G02B6/0288 , G02B6/03633 , G02B6/14 , G02B6/2804
摘要： A coupled multi-core fiber 10 includes a plurality of cores 11 and a clad 12 surrounding the plurality of cores 11, wherein the plurality of cores 11 are arranged in such a way that periphery surfaces of the adjacent cores 11 contact with each other, each of the cores 11 is made to have a refractive index higher than the clad 12 and includes: an outer region 16 having a predetermined thickness from the periphery surface; and an inner region 15 made to have a higher refractive index than the outer region 16 and surrounded by the outer region 16.
摘要翻译：耦合的多芯光纤10包括多个芯11和围绕多个芯11的包层12，其中多个芯11以相邻芯11的周边表面彼此接触的方式布置，每个芯11的折射率高于包层12，并且包括：具有从外围表面预定厚度的外部区域16; 以及具有比外部区域16更高的折射率并被外部区域16包围的内部区域15。

9. 发明授权

US07526168B2 Optical fiber, transmission system, and wavelength division multiplexing system 有权
标题翻译：光纤，传输系统和波分复用系统
公开(公告)号：US07526168B2
公开(公告)日：2009-04-28
申请号：US11744117
申请日：2007-05-03
申请人： Shoichiro Matsuo , Shoji Tanigawa , Keisuke Uchiyama , Kuniharu Himeno
发明人： Shoichiro Matsuo , Shoji Tanigawa , Keisuke Uchiyama , Kuniharu Himeno
IPC分类号： G02B6/02
CPC分类号： H04J14/02 , G02B6/02004 , G02B6/02009 , G02B6/02266 , G02B6/0281 , G02B6/0286 , G02B6/03605 , G02B6/03644 , G02B6/03666 , G02B6/03688 , H04B10/2537 , H04J14/0226 , H04J14/0232 , H04J14/0247 , H04J14/0252 , H04J14/0282
摘要： An optical fiber has a first mode field diameter in a dominant mode of an acoustic mode generated in the optical fiber different from a second mode field diameter in a light intensity distribution of the optical fiber. Furthermore, a transmission system is configured to perform an analog signal transmission, a baseband transmission, or an optical SCM transmission by use of the optical fiber.
摘要翻译：在光纤的光强度分布中，光纤具有在与第二模场直径不同的光纤中产生的声学模式的主模式中的第一模场直径。此外，传输系统被配置为通过使用光纤来执行模拟信号传输，基带传输或光SCM传输。

10. 发明授权

US06928211B2 Optical fiber and optical transmission path that uses the optical fiber 失效
标题翻译：使用光纤的光纤和光传输路径
公开(公告)号：US06928211B2
公开(公告)日：2005-08-09
申请号：US10636552
申请日：2003-08-08
申请人： Shoji Tanigawa , Shoichiro Matsuo , Kuniharu Himeno
发明人： Shoji Tanigawa , Shoichiro Matsuo , Kuniharu Himeno
IPC分类号： G02B6/036 , G02B6/02
CPC分类号： G02B6/02271 , G02B6/02 , G02B6/02014 , G02B6/03611
摘要： There is provided at low cost an optical fiber suitable for wavelength division multiplex transmissions that has strengthened the tolerance to bending loss at even smaller bending diameters. The present invention is an optical fiber whose base material is silica glass and that has a two layer structure formed by a core that has a substantially uniform refractive index and by a cladding that is located outside the core and that has a substantially uniform refractive index, wherein the optical fiber satisfies the following conditions (1) to (3): (1) an outer diameter of the core is in a range of 4 to 8 μm, and a relative refractive index difference of the core is in a range of 0.4 to 0.8%; (2) chromatic dispersion at a wavelength of 1550 nm is in a range of 2 to 15 ps/nm/km; and (3) effective area at a wavelength of 1550 nm is 40 μm2 or more.
摘要翻译：以低成本提供了适用于波分复用传输的光纤，其在更小的弯曲直径下增强了对弯曲损耗的公差。本发明是一种基材为石英玻璃的光纤，其具有由具有基本上均匀的折射率的芯构成的两层结构，以及位于芯外部并具有基本上均匀的折射率的包层，其中光纤满足以下条件（1）至（3）：（1）芯的外径在4至8μm的范围内，并且芯的相对折射率差在0.4的范围内至0.8％; （2）波长1550nm的色散在2〜15ps / nm / km的范围内; 和（3）1550nm波长的有效面积为40μm以上。

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