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1. 发明授权

US08433166B2 Multi-core optical fibre 有权
标题翻译：多芯光纤
公开(公告)号：US08433166B2
公开(公告)日：2013-04-30
申请号：US13377868
申请日：2011-01-26
申请人： Takuji Nagashima , Toshiki Taru , Takashi Sasaki
发明人： Takuji Nagashima , Toshiki Taru , Takashi Sasaki
IPC分类号： G02B6/028
CPC分类号： G02B6/02042
摘要： A multi-core optical fiber 1A in which a plurality of cores can easily be identified even in the case where they are symmetrically arranged in its section has seven cores 10 to 16, a visual recognition marker 20, and a shared cladding 30 enclosing the seven cores 10 to 16 and the visual recognition marker 20. The cores 10 to 16 and the visual recognition marker 20 extend along the fiber-axis direction. The respective refractive index of the cores 10 to 16 is higher than the refractive index of the cladding 30. The refractive index of the visual recognition marker 20 differs from that of the cladding 30. In the cross-section perpendicular to the fiber-axis, the cores 10 to 16 are arranged such that they have 6-fold rotational symmetry and line symmetry. The visual recognition marker 20 is arranged at a position which breaks such symmetry.
摘要翻译：即使在其部分对称布置的情况下，即使容易识别多个芯的多芯光纤1A也具有七个磁芯10至16，视觉识别标记20和包围七个磁芯的共享包层30 芯10至16和视觉识别标记20.芯10至16和视觉识别标记20沿着光纤轴方向延伸。芯10至16的相应折射率高于包层30的折射率。视觉识别标记20的折射率与包层30的折射率不同。在垂直于纤维轴的横截面中，芯10至16被布置成使得它们具有6倍的旋转对称性和线对称性。视觉识别标记20被布置在破坏这种对称的位置。

2. 发明申请

US20120087626A1 MULTI-CORE OPTICAL FIBRE 有权
标题翻译：多芯光纤
公开(公告)号：US20120087626A1
公开(公告)日：2012-04-12
申请号：US13377868
申请日：2011-01-26
申请人： Takuji Nagashima , Toshiki Taru , Takashi Sasaki
发明人： Takuji Nagashima , Toshiki Taru , Takashi Sasaki
IPC分类号： G02B6/028
CPC分类号： G02B6/02042
摘要： A multi-core optical fibre 1A in which a plurality of cores can easily be identified even in the case where they are symmetrically arranged in its section has seven cores 10 to 16, a visual recognition marker 20, and a shared cladding 30 enclosing the seven cores 10 to 16 and the visual recognition marker 20. The cores 10 to 16 and the visual recognition marker 20 extend along the fibre-axis direction. The respective refractive index of the cores 10 to 16 is higher than the refractive index of the cladding 30. The refractive index of the visual recognition marker 20 differs from that of the cladding 30. In the cross-section perpendicular to the fibre-axis, the cores 10 to 16 are arranged such that they have 6-fold rotational symmetry and line symmetry. The visual recognition marker 20 is arranged at a position which breaks such symmetry.
摘要翻译：即使在其部分对称布置的情况下，即使容易识别多个芯的多芯光纤1A也具有七个磁芯10至16，视觉识别标记20和包围七个磁芯的共享包层30 芯10至16和视觉识别标记20.芯10至16和视觉识别标记20沿着光纤轴方向延伸。芯10至16的相应折射率高于包层30的折射率。视觉识别标记20的折射率与包层30的折射率不同。在垂直于纤维轴的横截面中，芯10至16被布置成使得它们具有6倍的旋转对称性和线对称性。视觉识别标记20被布置在破坏这种对称的位置。

3. 发明申请

US20130064513A1 OPTICAL FIBER 审中-公开
标题翻译：光纤
公开(公告)号：US20130064513A1
公开(公告)日：2013-03-14
申请号：US13593743
申请日：2012-08-24
申请人： Takuji NAGASHIMA , Toshiki Taru , Kazuya Kuwahara
发明人： Takuji NAGASHIMA , Toshiki Taru , Kazuya Kuwahara
IPC分类号： G02B6/02
CPC分类号： G02B6/02366
摘要： An optical fiber has a plurality of holes in a cladding around a core, and has a high failure strength and small transmission loss. The core is made of glass. The cladding surrounds the core, and the holes are formed in the cladding so as to extend along a central axis of the fiber. The holes are formed with constant intervals therebetween along a circle centered on the core, and each hole has a substantially circular cross section. The cladding is sectioned into two claddings. A residual stress in an inner region that is inside a circumcircle of the holes is a compressive stress.
摘要翻译：光纤在芯周围的包层中具有多个孔，并且具有高的故障强度和较小的传输损耗。核心由玻璃制成。包层围绕芯部，并且在包层中形成孔，以沿着纤维的中心轴线延伸。这些孔沿着以芯为中心的圆形以恒定的间隔形成，并且每个孔具有基本圆形的横截面。包层被分成两个包层。在孔的外接圆内的内部区域的残余应力是压缩应力。

4. 发明申请

US20110194826A1 PHOTONIC CRYSTAL FIBER 审中-公开
标题翻译：光电晶体纤维
公开(公告)号：US20110194826A1
公开(公告)日：2011-08-11
申请号：US13123351
申请日：2010-07-02
申请人： Takuji Nagashima , Toshiki Taru
发明人： Takuji Nagashima , Toshiki Taru
IPC分类号： G02B6/02
CPC分类号： G02B6/02333 , G02B6/02347 , G02B6/0238 , H01S3/06729 , H01S3/06741
摘要： Provided is a photonic crystal fiber capable of fusion-splicing with an ordinary optical fiber at low splicing loss and having a core region and a cladding region that surrounds the core region, wherein the cladding region is structured such that high refractive index sub-regions are periodically arranged in a two-dimensional periodic structure in the low refractive index background sub-region at a cross-section perpendicular to the fiber axis, and wherein the refractive index of the core region is higher than the refractive index of the low refractive index background sub-region. The refractive index profile of the photonic crystal fiber is uniform along the fiber axis. The effective refractive index of the core guided mode may be higher than the refractive index of the low refractive index background sub-region.
摘要翻译：提供一种能够以低拼接损耗与普通光纤进行熔接并且具有包围芯区域的芯区域和包层区域的光子晶体光纤，其中，包层区域被构造成使得高折射率子区域为在垂直于纤维轴的横截面上在低折射率背景子区域中以二维周期性结构周期性地布置，并且其中芯区域的折射率高于低折射率背景的折射率子区域。光子晶体光纤的折射率分布沿着光纤轴线是均匀的。芯引导模式的有效折射率可以高于低折射率背景子区域的折射率。

5. 发明申请

US20120236295A1 METHOD OF MEASURING BENDING PERFORMANCE OF OPTICAL FIBER 审中-公开
标题翻译：测量光纤弯曲性能的方法
公开(公告)号：US20120236295A1
公开(公告)日：2012-09-20
申请号：US13417555
申请日：2012-03-12
申请人： Tetsuya Nakanishi , Toshiki Taru , Takuji Nagashima , Tatsuya Konishi , Kazuya Kuwahara , Makoto Ichikawa
发明人： Tetsuya Nakanishi , Toshiki Taru , Takuji Nagashima , Tatsuya Konishi , Kazuya Kuwahara , Makoto Ichikawa
IPC分类号： G01N21/59
CPC分类号： G01M11/088
摘要： A method of measuring the bending performance of an optical fiber in a simple manner is provided. Power P1 of light emitted from one end of the optical fiber when light is incident onto the other end of the optical fiber is measured under conditions where the optical fiber 1 is wound at a constant pitch by one layer on the circumferential side of a mandrel 2 and the overall circumference of the optical fiber 1 thus wound is covered with an index matching sheet 5. The refractive index of the index matching sheet 5 substantially matches with the refractive index of resin of the outermost layer of the optical fiber 1.
摘要翻译：提供了一种以简单的方式测量光纤的弯曲性能的方法。在光纤入射到光纤的另一端时从光纤的一端发射的光的功率P1是在光纤1在心轴2的周向侧以恒定的间距缠绕一层的条件下测量的并且用折射率匹配片5覆盖如此卷绕的光纤1的整体周长。折射率匹配片5的折射率与光纤1的最外层的树脂的折射率基本一致。

6. 发明申请

US20110222828A1 MULTI-CORE OPTICAL FIBER 审中-公开
标题翻译：多芯光纤
公开(公告)号：US20110222828A1
公开(公告)日：2011-09-15
申请号：US13044411
申请日：2011-03-09
申请人： Eisuke SASAOKA , Toshiki Taru , Takuji Nagashima
发明人： Eisuke SASAOKA , Toshiki Taru , Takuji Nagashima
IPC分类号： G02B6/036
CPC分类号： G02B6/02042 , G02B6/0365
摘要： The present invention relates to a multi-core optical fiber having a structure for reducing transmission loss and nonlinearity. The multi-core optical fiber comprises plural cores extending along a center axis direction, and a cladding surrounding the peripheries of the plural cores. The cladding is comprised of silica glass doped with fluorine, and each of the plural cores is comprised of silica glass doped with chlorine or pure silica glass.
摘要翻译：本发明涉及具有减少传输损耗和非线性的结构的多芯光纤。多芯光纤包括沿着中心轴方向延伸的多个芯和围绕多个芯的周边的包层。该包层由掺杂有氟的二氧化硅玻璃构成，多个芯中的每一个都由掺有氯或纯二氧化硅玻璃的石英玻璃构成。

7. 发明申请

US20110080590A1 METHOD OF MANUFACTURING PREFORM FOR OPTICAL WAVEGUIDE 审中-公开
标题翻译：光波导制造方法
公开(公告)号：US20110080590A1
公开(公告)日：2011-04-07
申请号：US12988221
申请日：2009-04-15
申请人： Eisuke Sasaoka , Kazuo Nakamae , Toshiki Taru , Takuji Nagashima
发明人： Eisuke Sasaoka , Kazuo Nakamae , Toshiki Taru , Takuji Nagashima
IPC分类号： G01B9/02 , G02B6/10 , G02B6/00
CPC分类号： G02B6/1225 , B82Y20/00 , C03B23/047 , C03B33/06 , C03B2201/02 , C03B2201/12 , C03B2201/31 , G02B6/12002 , G02B6/13 , Y02P40/57
摘要： The present invention relates to an optical waveguide manufacturing method, which excels in mass productivity of a planar optical waveguide. In an aggregating step, plural members (20), which have a rod (21) or pipe (22) shape respectively, are arranged and bundled so as to constitute a substantially similar figure to at least a part of a desired waveguide pattern on a cross-section perpendicular to the longitudinal direction of the members (20). The plural members (20) bundled in the aggregating step are, after being softened by heating, elongated in a longitudinal direction thereof in an elongating step, whereby an elongated body is formed. The elongated body formed in the elongating step is cut along a plane perpendicular to the longitudinal direction of the elongated body in a cutting step. By these steps, a planar optical waveguide, on which a waveguide pattern based on a micro-structure is formed, is manufactured.
摘要翻译：光波导制造方法技术领域本发明涉及一种平面光波导的质量生产率优异的光波导制造方法。在聚集步骤中，分别具有棒（21）或管（22）形状的多个构件（20）被布置和捆扎，以便构成与图1中所需的波导图案的至少一部分大致相似的图横截面垂直于构件（20）的纵向方向。在聚集步骤中捆扎的多个构件（20）在通过加热软化之后，在拉伸步骤中在其长度方向上伸长，由此形成细长体。在切割步骤中，沿着与细长体的纵向方向垂直的平面切割在拉伸步骤中形成的细长体。通过这些步骤，制造其上形成有基于微结构的波导图案的平面光波导。

8. 发明申请

US20070044516A1 Method of treating the inner surface of silica tube, manufacturing method of optical fiber preform, and manufacturing method of optical fiber 审中-公开
标题翻译：处理石英管内表面的方法，光纤预制棒的制造方法和光纤的制造方法
公开(公告)号：US20070044516A1
公开(公告)日：2007-03-01
申请号：US11512347
申请日：2006-08-30
申请人： Toshiki Taru , Takashi Sasaki , Masaaki Hirano
发明人： Toshiki Taru , Takashi Sasaki , Masaaki Hirano
IPC分类号： C03B37/028 , C03B37/01
CPC分类号： C03B37/01211 , C03B32/00 , C03B37/018 , C03C21/007 , Y02P40/57
摘要： Provided are a method of treating the inner surface of a silica tube, an optical fiber preform manufacturing method, and an optical fiber manufacturing method, in which the amount of discharge of a global warming gas is less than that in the case of a conventional method. The method of treating the inner surface of a silica tube comprises a step of heating the silica tube so as to have a temperature of 1800° C. or more while supplying a gas containing chlorine into the inside of the silica tube, thereby treating the inner surface of the silica tube with chlorine. The optical fiber preform manufacturing method further comprises a step of processing the silica tube into a rod. The optical fiber manufacturing method comprises a step of drawing an optical fiber preform prepared by the optical fiber preform manufacturing method.
摘要翻译：提供一种处理二氧化硅管的内表面的方法，光纤预制棒制造方法和光纤制造方法，其中全球变暖气体的排放量小于常规方法的情况。处理二氧化硅管内表面的方法包括在向二氧化硅管的内部供给含氯气体的同时，将二氧化硅管加热至1800℃以上的温度的步骤，二氧化硅管表面用氯气。光纤预制棒的制造方法还包括将石英管加工成棒的步骤。光纤制造方法包括通过光纤预制棒制造方法制备的光纤预制件的制造步骤。

9. 发明申请

US20050244119A1 Method of manufacturing fluorine doped silica glass article, and method of manufacturing optical fiber preform and optical fiber using the method, and optical fiber made by such method 审中-公开
标题翻译：氟掺杂石英玻璃制品的制造方法以及使用该方法制造光纤预制棒和光纤的方法以及通过这种方法制成的光纤
公开(公告)号：US20050244119A1
公开(公告)日：2005-11-03
申请号：US11016937
申请日：2004-12-21
申请人： Takashi Sasaki , Shinji Ishikawa , Toshiki Taru
发明人： Takashi Sasaki , Shinji Ishikawa , Toshiki Taru
IPC分类号： C03B37/01 , C03B19/14 , C03B37/014 , G02B6/02
CPC分类号： C03C13/045 , C03B19/1453 , C03B37/01446 , C03B2201/12 , C03B2201/20 , C03C2201/11 , C03C2201/12 , C03C2203/54
摘要： Provided are an optical fiber which exhibits a small increment of loss due to the OH group and which is suitable for transmitting signals in a band including a wavelength of 1,380 nm, and methods for manufacturing such optical fiber, an optical fiber preform, and a fluorine doped silica glass article. The fluorine doped silica glass article is produced by (1) depositing silica glass soot on a starting substrate to produce a silica glass soot deposit body and (2) heating the silica glass soot deposit body in an atmosphere including at least a first gas containing fluorine atoms and a second gas having deoxidizing property and containing no fluorine atom nor hydrogen atom. An optical fiber preform and an optical fiber are produced by the use of this glass body. The optical fiber has a clad containing fluorine and exhibits a transmission loss of 0.32 dB/km or less at a wavelength of 1,380 nm.
摘要翻译：本发明提供一种光纤，该光纤由OH基引起的损耗增加小，适用于在包括1380nm波长的波段的信号中传输信号，以及制造这种光纤，光纤预制棒和氟的方法掺杂石英玻璃制品。氟掺杂石英玻璃制品通过（1）在起始衬底上沉积二氧化硅玻璃烟炱以制备石英玻璃烟灰沉积体并且（2）在至少包含含氟的第一气体的气氛中加热二氧化硅玻璃烟灰沉积体原子和具有脱氧性的第二气体，不含氟原子也不含氢原子。通过使用该玻璃体制造光纤预制件和光纤。该光纤具有含氟的包层，在1,380nm的波长下表现出0.32dB / km以下的传输损耗。

10. 发明申请

US20090133445A1 Method for manufacturing glass body and method for manufacturing optical fiber 审中-公开
标题翻译：制造玻璃体的方法及其制造方法
公开(公告)号：US20090133445A1
公开(公告)日：2009-05-28
申请号：US11991266
申请日：2006-08-29
申请人： Tetsuya Haruna , Toshiki Taru , Motoki Kakui , Masashi Onishi
发明人： Tetsuya Haruna , Toshiki Taru , Motoki Kakui , Masashi Onishi
IPC分类号： C03B37/02
CPC分类号： C03B37/018 , C03B37/01853 , C03B37/01869 , C03B2201/30 , C03B2201/32 , C03B2207/32
摘要： A method for manufacturing a glass body containing bismuth, which can be used for manufacturing an optical fiber having a low background-loss is provided. The method includes depositing a glass micro-particle layer on an inner wall of a glass pipe, consolidating the glass micro-particle layer to form a glass layer, reducing of a diameter of the glass pipe having the glass layer on the inner wall of the glass pipe, and collapsing the glass pipe having been reduced in diameter at the diameter-reducing step so as to form the glass body. At the depositing step, the glass micro-particle layer is formed while an organobismuth compound is being supplied into the glass pipe. At the consolidating step, the glass layer is consolidated while an organobismuth compound is being supplied into the glass pipe. The optical fiber is made by drawing the glass body.
摘要翻译：提供了可用于制造背景损耗低的光纤的含有铋的玻璃体的制造方法。该方法包括在玻璃管的内壁上沉积玻璃微粒子层，固化玻璃微粒层以形成玻璃层，减少在玻璃管的内壁上具有玻璃层的玻璃管的直径玻璃管，并且在直径减小步骤中使直径减小的玻璃管塌缩，以形成玻璃体。在沉积步骤中，形成玻璃微粒层，同时向玻璃管中供应有机铋化合物。在固结步骤中，玻璃层被固结，而有机铋化合物被供应到玻璃管中。光纤通过拉制玻璃体制成。

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