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1. 发明专利

JP2003202445A PHOTONIC CRYSTAL OPTICAL FIBER AND ITS MANUFACTURING METHOD 审中-公开
公开(公告)号：JP2003202445A
公开(公告)日：2003-07-18
申请号：JP2002002197
申请日：2002-01-09
申请人： NAKAZAWA MASATAKA , HITACHI CABLE
发明人： NAKAZAWA MASATAKA , OSONO KAZUMASA , YO HEI , OSUGA KAZUSHI
IPC分类号： G02B6/032 , C03B37/012 , C03B37/027 , G02B6/00 , G02B6/02 , G02B6/20
摘要： PROBLEM TO BE SOLVED: To provide a PCF whose loss is reduced by reducing loss of the PCF caused by impurities. SOLUTION: The PCF comprises a hollow core 2 whose external diameter is nearly several times as large as the wavelength of light and a clad 4 which is formed around the core 2 and has a plurality of holes 3 formed to constitute a diffraction grating in photonic band-gap structure around the core 2 adjacently, and the hollow core 2 and the plurality of holes 3 of the clad 4 are evacuated. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2003206148A METHOD FOR MANUFACTURING PHOTONIC CRYSTAL OPTICAL FIBER 审中-公开
公开(公告)号：JP2003206148A
公开(公告)日：2003-07-22
申请号：JP2002002196
申请日：2002-01-09
申请人： NAKAZAWA MASATAKA , HITACHI CABLE
发明人： NAKAZAWA MASATAKA , YO HEI , OSONO KAZUMASA , OSUGA KAZUSHI
IPC分类号： G02B6/00 , C03B37/012 , C03B37/027 , C03C13/04 , C03C17/22 , C03C17/28
摘要： PROBLEM TO BE SOLVED: To suppress generation of bubbles in drawing of a preform for a photonic crystal fiber (PCF) and to provide the PCF having a small transmission loss and high quality. SOLUTION: In a method for manufacturing the photonic crystal optical fiber 10 by drawing a preform 3 for the photonic crystal optical fiber formed by bundling a plurality of small-diameter quartz tubes 2 having the same diameter as a small-diameter quartz rod 1 around the quartz rod 1, fluorine-doped layers 4s, 4p are formed as the outermost layers of the quartz rod 1 and each quartz tube 2. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2013152309A Method for processing long period fiber grating and long period fiber grating 审中-公开
标题翻译：用于处理长期光纤光栅和长周期光纤光栅的方法
公开(公告)号：JP2013152309A
公开(公告)日：2013-08-08
申请号：JP2012012480
申请日：2012-01-24
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： TACHIKURA MASAO , SHIINA NORIBUMI , OSONO KAZUMASA
IPC分类号： G02B6/02
摘要： PROBLEM TO BE SOLVED: To provide a method for processing a long period fiber grating for accurately controlling periodic variation of an optical fiber diameter in the axis direction of an optical fiber to efficiently process the optical fiber irrespective of the types of the optical fiber, and the long period fiber grating with less variation of characteristics.SOLUTION: An optical fiber 1 is fixed at two parts; a heating source 15 is moved along the longitudinal direction with respect to the optical fiber 1 which is located between the fixed two parts to heat the optical fiber 1; a pulling operation for pulling the optical fiber 1 by a predetermined distance and/or a compression operation for compressing the optical fiber 1 by a predetermined distance are intermittently repeated; and a changed part of the outer diameter of the optical fiber 1 is periodically formed in the longitudinal direction of the optical fiber 1.
摘要翻译：要解决的问题：提供一种处理长周期光纤光栅的方法，用于精确地控制光纤的轴向上的光纤直径的周期性变化，以有效地处理光纤，而不管光纤的类型如何，以及长周期光纤光栅具有较小的特性变化。解决方案：光纤1固定在两个部分; 加热源15相对于位于固定两部分之间的光纤1沿着纵向方向移动以加热光纤1; 间歇地重复用于将光纤1拉动预定距离的拉动操作和/或用于将光纤1压缩预定距离的压缩操作; 并且光纤1的外径的变化部分在光纤1的长度方向周期性地形成。

4. 发明专利

JP2012215695A Multi-core fiber 审中-公开
标题翻译：多芯光纤
公开(公告)号：JP2012215695A
公开(公告)日：2012-11-08
申请号：JP2011080890
申请日：2011-03-31
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： YO HEI , OSONO KAZUMASA
IPC分类号： G02B6/04 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To provide a multi-core fiber that can be relatively easily manufactured and has reduced crosstalk.SOLUTION: A multi-core fiber 1 comprises: a plurality of first cores 11 with first optical characteristics; a plurality of second cores 12 with second optical characteristics different from the first optical characteristics; a clad 14 for forming holes 13 and covering the plurality of first cores 11 and the plurality of second cores 12. The holes 13 are positioned on line segments connecting adjacent cores with the same optical characteristics among the plurality of first cores 11 and the plurality of second cores 12.
摘要翻译：要解决的问题：提供可以相对容易地制造并且减少串扰的多芯光纤。解决方案：多芯光纤1包括：具有第一光学特性的多个第一芯11; 具有与第一光学特性不同的第二光学特性的多个第二芯体12; 用于形成孔13并覆盖多个第一芯11和多个第二芯12的包层14。孔13位于在多个第一芯11和多个第一芯11之间连接具有相同光学特性的相邻芯的线段上第二核12.版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2012168453A Multi-core optical fiber, method of manufacturing multi-core optical fiber, and method of interconnecting multi-core optical fibers 审中-公开
标题翻译：多芯光纤，制造多芯光纤的方法以及互连多芯光纤的方法
公开(公告)号：JP2012168453A
公开(公告)日：2012-09-06
申请号：JP2011030964
申请日：2011-02-16
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： TAKAHASHI SHO , OSONO KAZUMASA , YO HEI
IPC分类号： G02B6/04 , G02B6/255
摘要： PROBLEM TO BE SOLVED: To provide a multi-core optical fiber which facilitates identification and connection of a specific core part and is advantageous in maintenance of an optical transmission system using the multi-core optical fiber.SOLUTION: In the multi-core optical fiber which includes a clad 1 and a plurality of core parts 2-11 provided in the clad 1 and having a higher refractive index than the clad 1, the core parts 2-11 are arranged on a plurality of concentric different-diameter circles A, B, and C, core parts arranged on at least one concentric different-diameter circle among the plurality of concentric different-diameter circles A, B, and C are arranged one-rotation symmetrically about a fiber center axis X, and distances between the respective core parts are set such that crosstalk of an optical signal is -35 dB or less when a fiber length is 1 km or larger.
摘要翻译：要解决的问题：提供一种便于识别和连接特定芯部的多芯光纤，并且有利于使用多芯光纤的光传输系统的维护。解决方案：在包括一个包层1和设置在包层1中并且具有比包层1更高的折射率的多个芯部2-11的多芯光纤中，芯部2-11被布置在多个同心的不同直径的圆A，B和C上，布置在多个同心的不同直径的圆A，B和C中的至少一个同心的不同直径圆上的芯部分对称地围绕光纤中心轴X和各芯部之间的距离被设定为当光纤长度为1km或更大时光信号的串扰为-35dB或更小。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2012022176A Multi-core interface 审中-公开
标题翻译：多核接口
公开(公告)号：JP2012022176A
公开(公告)日：2012-02-02
申请号：JP2010160522
申请日：2010-07-15
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： YO HEI , OSONO KAZUMASA
IPC分类号： G02B6/04
CPC分类号： G02B6/3885 , G02B6/02042 , G02B6/3672 , G02B6/368
摘要： PROBLEM TO BE SOLVED: To provide a multi-core interface capable of individually transmitting light into multiple cores of a multi-core fiber even with a small diameter or of individually taking out light propagated through multiple cores thereof.SOLUTION: A multi-core interface comprises: multiple small-diameter optical fibers 2 of which a clad 2b has an outer diameter formed in a manner equal to a core interval of a multi-core fiber 10; and a ferrule 3 having a through-hole 4 into which the multiple small-diameter optical fibers 2 are inserted. The multi-core interface is formed by: removing a coating layer 2c at each tip part of the multiple small-diameter optical fibers 2; bundling the tip parts of the multiple small-diameter optical fibers 2 from which the coating layer 2c is removed; inserting the bundled optical fibers into the through-hole 4 of the ferrule 3; putting an end face of the bundled multiple small-diameter optical fibers 2 with an end face of the ferrule 3; and strapping the multiple small-diameter optical fibers into the ferrule 3.
摘要翻译：要解决的问题：提供一种多核接口，其能够将光单独地发射到多芯光纤的多个核心，即使是具有小直径或单独地取出通过其多个核传播的光。解决方案：多芯接口包括：多个小直径光纤2，其中包层2b具有以等于多芯光纤10的芯间隔的方式形成的外径; 以及具有插入多根小直径光纤2的通孔4的套管3。多芯接口通过以下方式形成：去除多个小直径光纤2的每个末端处的涂层2c; 捆扎除去了涂层2c的多个小直径光纤2的末端部分; 将捆扎的光纤插入到套圈3的通孔4中; 将捆扎的多个小直径光纤2的端面与套圈3的端面对置; 并将多根小直径光纤捆扎成套圈3.版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2011191659A Optical fiber 审中-公开
标题翻译：光纤
公开(公告)号：JP2011191659A
公开(公告)日：2011-09-29
申请号：JP2010059534
申请日：2010-03-16
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： KAMIYA NATSUKI , KOBAYASHI NARIMICHI , YO HEI , OSONO KAZUMASA
IPC分类号： G02B6/032 , G02B6/02
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber, the connection loss of which can be reduced more easily than before. SOLUTION: The optical fiber includes a core and a clad having a plurality of hole parts around the core, and has sealing parts, each of which is formed by packing the end of each hole part with a curable resin. A relative refractive index difference Δ between the sealing part and the clad is made to be larger than a relative refractive index difference between the core and the clad. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种光纤，其连接损耗可以比以前更容易地减少。解决方案：光纤包括芯和围绕芯的多个孔部的包层，并且具有密封部，每个密封部通过用可固化树脂封装每个孔部的端部而形成。使密封部和包层之间的相对折射率差Δ大于芯与包层之间的相对折射率差。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2010103223A Fiber for fiber laser and method of manufacturing the same, and fiber laser 有权
标题翻译：用于光纤激光的光纤及其制造方法和光纤激光器
公开(公告)号：JP2010103223A
公开(公告)日：2010-05-06
申请号：JP2008271808
申请日：2008-10-22
申请人： Hitachi Cable Ltd , Toyota Gakuen , Toyota Motor Corp , トヨタ自動車株式会社 , 学校法人トヨタ学園 , 日立電線株式会社
发明人： SAITO KAZUYA , YO HEI , HONGO AKISHI , OSONO KAZUMASA , SATO AKIO , YANAKA KOHEI
IPC分类号： H01S3/06 , C03B37/12
CPC分类号： C03B37/027 , C03B2205/20
摘要： PROBLEM TO BE SOLVED: To provide a fiber for a fiber laser capable of acquiring a high output laser beam without increasing an additive concentration of a rare earth element. SOLUTION: The fiber 1 for the fiber laser includes: a core 2 with the rare earth element added; and a clad 3 formed at the outer circumference of the core 2. The core 2 has a fictive temperature of 1,720 to 2,000°C. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在不增加稀土元素的添加剂浓度的情况下获得高输出激光束的光纤激光器的光纤。解决方案：用于光纤激光器的光纤1包括：添加有稀土元素的芯2; 以及形成在芯体2的外周的包层3。芯部2的假想温度为1720〜2000℃。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2010003895A Optical fiber for fiber laser, and fiber laser using the same 审中-公开
标题翻译：光纤激光用光纤，使用该光纤激光
公开(公告)号：JP2010003895A
公开(公告)日：2010-01-07
申请号：JP2008161642
申请日：2008-06-20
申请人： Hitachi Cable Ltd , Toyota Gakuen , Toyota Motor Corp , トヨタ自動車株式会社 , 学校法人トヨタ学園 , 日立電線株式会社
发明人： YO HEI , OSONO KAZUMASA , HONGO AKISHI , SAITO KAZUYA , SATO AKIO , YANAKA KOHEI
IPC分类号： H01S3/06 , H01S3/094 , H01S3/10
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber for a fiber laser having high quality and high optical output, and being capable of providing output light in a single mode, and to provide a fiber laser. SOLUTION: This optical fiber 11 for a fiber laser oscillating laser light by amplifying an excitation light comprises: an optical fiber 2, having a core with a rare-earth element added therein and a cladding formed around the core; and a mode filter 6 arranged at a tip part of the optical fiber 2. COPYRIGHT: (C)2010,JPO&INPIT

10. 发明专利

JP2009002997A Optical fiber, end face part structure of the same, and optical connector 审中-公开
标题翻译：光纤，其端面部件结构以及光连接器
公开(公告)号：JP2009002997A
公开(公告)日：2009-01-08
申请号：JP2007161235
申请日：2007-06-19
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： KUROSAWA YOSHINORI , OSONO KAZUMASA , KATO YOSHIHISA
IPC分类号： G02B6/02 , G02B6/38
CPC分类号： G02B6/3861 , G02B6/02333 , G02B6/02347 , G02B6/382 , G02B6/3863
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber capable of reducing damage of an end face and depression of UV curing resin filled in holes and performing low-loss connection with an ordinary SMF, and to provide end face part structure of the optical fiber and an optical connector. SOLUTION: In this optical fiber having a plurality of holes 43 around a core 41, an optical fiber end part 16 is filled with the UV curing light transmitting resin showing the Young's modulus of 8-500 MPa at 25°C after curing, and after curing the resin, the end face 20 of the optical fiber is performed polishing treatment. COPYRIGHT: (C)2009,JPO&INPIT

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