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11. 发明公开

EP1788415A4 HOLE ASSIST TYPE HOLEY FIBER AND LOW BENDING LOSS MULTIMODE HOLEY FIBER 审中-公开
标题翻译： HOLE-支持的超细纤维结构化和MICRO构建为低曲率损失多模光纤
公开(公告)号：EP1788415A4
公开(公告)日：2008-11-26
申请号：EP05760182
申请日：2005-07-12
申请人： FUJIKURA LTD
发明人： GUAN NING , TAKENAGA KATSUHIRO , IZOE KATSUAKI , AIKAWA KAZUHIKO , HIMENO KUNIHARU
IPC分类号： G02B6/32
CPC分类号： G02B6/02333 , G02B6/02338 , G02B6/02357 , G02B6/03633 , G02B6/14
摘要： A hole assist type holey fiber (HAHF) allowing low bending loss L

12. 发明公开

EP1657575A4 OPTICAL FIBER 审中-公开
标题翻译： OPTISCHE FASER
公开(公告)号：EP1657575A4
公开(公告)日：2008-03-19
申请号：EP04726886
申请日：2004-04-12
申请人： FUJIKURA LTD
发明人： MATSUO SHOICHIRO , HIMENO KUNIHARU , HARADA KOICHI , IKEDA MASATAKA
IPC分类号： G02B6/02 , G02B6/036
CPC分类号： G02B6/02009 , G02B6/0365 , G02B6/03672 , G02B6/03688
摘要： An optical fiber has a core provided in the center, a first clad layer (2) on the periphery of the core (1), a second clad layer (3) on the periphery of the first clad layer (2), and a third clad layer (4) on the periphery of the second clad layer (3). The maximum refractive index of the core is greater than any of those of the first clad layer, the second clad layer, and the third clad layer. The maximum refractive index of the second clad layer is smaller than any of those of the first clad layer and the third clad layer. The value of a2/a1 is between 2.5 and 4.5, both inclusive, with a1 being the radius of the core and a2 being the radius of the outer edge of the first clad layer. Further, a relative refractive index difference of the core, with the refractive index of the third clad as the standard, is between 0.20 and 0.70%, both inclusive.
摘要翻译：光纤包括：设置在中心的芯（1）; 设置在所述芯（1）的周边上的第一覆层（2）; 设置在所述第一包层（2）的周围的第二包覆层（3）; 以及设置在所述第二包覆层（3）的周围的第三包覆层（4），其中，所述芯的最大折射率大于所述第一包层，所述第二包层（3）的最大折射率第三包覆层和第二包层的最大折射率小于第一包层和第三包层的最大折射率中的任一个，a 2 / a 1的值不小于2.5而不是更大当芯的半径为1并且第一包层的外周半径为2时，芯的相对折射率差相对于第三包覆层的折射率的相对折射率差为4.5以上 0.20以上0.70％以下。

13. 发明公开

EP1947065A4 RARE EARTH-DOPED CORE OPTICAL FIBER AND METHOD FOR MANUFACTURE THEREOF 无效
标题翻译：与SELTENERDDOTIERTEM核心和工艺光导PRODUCING
公开(公告)号：EP1947065A4
公开(公告)日：2013-01-30
申请号：EP06832391
申请日：2006-10-26
申请人： FUJIKURA LTD
发明人： IKEDA MASASHI , YAMADA NARITOSHI , HIMENO KUNIHARU , NAKAI MICHIHIRO , KITABAYASHI TOMOHARU
IPC分类号： C03C13/04 , C03B37/018 , C03B37/027 , G02B6/00 , G02B6/036 , H01S3/06
CPC分类号： H01S3/06716 , C03B37/01838 , C03B37/01853 , C03B2201/12 , C03B2201/31 , C03B2201/36 , C03B2203/23 , C03C13/045 , C03C13/046 , G02B6/03633 , G02B6/03638

14. 发明公开

EP1710552A4 MULTI-MODE OPTICAL FIBER MEASUREMENT METHOD 有权
标题翻译：光多模光纤测量方法
公开(公告)号：EP1710552A4
公开(公告)日：2011-04-20
申请号：EP05709347
申请日：2005-01-26
申请人： FUJIKURA LTD
发明人： TAKENAGA KATSUHIRO , GUAN NING , MATSUO SHOICHIRO , HIMENO KUNIHARU , HARADA KOICHI
IPC分类号： G01M11/02 , G01M11/00
CPC分类号： G01M99/002 , G01M11/30

15. 发明公开

EP1806599A4 OPTICAL FIBER, TRANSMISSION SYSTEM AND MULTIPLE WAVELENGTH TRANSMISSION SYSTEM 审中-公开
标题翻译：光纤传输系统和更多波长传输系统
公开(公告)号：EP1806599A4
公开(公告)日：2010-09-22
申请号：EP05795709
申请日：2005-10-24
申请人： FUJIKURA LTD
发明人： MATSUO SHOICHIRO , TANIGAWA SHOJI , HIMENO KUNIHARU
IPC分类号： G02B6/036
CPC分类号： G02B6/03611 , G02B6/03627 , G02B6/03633 , G02B6/03644 , G02B6/0365

16. 发明公开

EP1698919A4 OPTICAL FIBER AND METHOD OF MEASURING POLARIZATION MODE DIFFUSION FOR OPTICAL FIBER 审中-公开
标题翻译：光纤法测量偏振FASHIONS扩散光纤
公开(公告)号：EP1698919A4
公开(公告)日：2007-08-15
申请号：EP04792774
申请日：2004-10-21
申请人： FUJIKURA LTD
发明人： GOTO RYUICHIRO , TANIGAWA SHOJI , MATSUO SHOICHIRO , HIMENO KUNIHARU
IPC分类号： G02B6/02 , G01M11/00 , G01M11/02 , G02B6/44
CPC分类号： G02B6/02285 , G01M11/3181
摘要： A method of measuring polarization mode dispersion of an optical fiber, includes estimating polarization mode dispersion when an optical fiber is formed as an optical cable, from a beat length when the optical fiber is wound around a bobbin, and an average coupling length when the optical fiber is formed as the optical cable.

17. 发明公开

EP1591808A4 MODE DISPERSION COMPENSATING METHOD IN MULTIMODE OPTICAL FIBER TRANSMISSION LINE 有权
标题翻译：在光纤多FASHIONS输电线路模色散补偿方法
公开(公告)号：EP1591808A4
公开(公告)日：2006-03-22
申请号：EP04708063
申请日：2004-02-04
申请人： FUJIKURA LTD
发明人： GUAN NING , HABU SHINJI , TAKENAGA KATSUHIRO , HIMENO KUNIHARU , HARADA KOICHI
IPC分类号： G02B6/10 , G02B6/34 , H04B10/2581
CPC分类号： G02B6/268 , G02B6/0288 , H04B10/2581
摘要： In an optical transmission line consisting of a multimode optical fiber, the mode dispersion of the optical transmission line is reduced in order to permit a wide-band optical signal to be transmitted at high speed, over a long distance and at low costs. When a plurality of multimode optical fibers are connected together to form a transmission line for the purpose of reducing a mode dispersion, length ratios between the respective multimode optical fibers that can maximize the band of this optical transmission are determined, and they are connected together at the length ratios. In addition, a multimode optical fiber having a specific refractive index profile is used as a mode dispersion compensating fiber. Also, a compensated fiber and a compensating fiber each having a specific length are connected together.

18. 发明公开

EP0637762A4 POLARIZED WAVE HOLDING OPTICAL FIBER, PRODUCTION METHOD THEREFOR, CONNECTION METHOD THEREFOR, OPTICAL AMPLIFIER, LASER OSCILLATOR AND POLARIZED WAVE HOLDING OPTICAL FIBER COUPLER. 失效
标题翻译：偏振波保持光纤，PROCESS FOR PRODUCING，CONNECTION及其方法，光放大器中，激光振荡器和偏振保护者光纤耦合器。
公开(公告)号：EP0637762A4
公开(公告)日：1995-07-05
申请号：EP94907683
申请日：1994-02-24
申请人： FUJIKURA LTD
发明人： YAMAUCHI RYOZO , HIMENO KUNIHARU , SAWADA MINORU , SUZUKI FUMIO , AIKAWA KAZUHIKO , NOZAWA TETSUO , YAMASAKI SHIGEFUMI
IPC分类号： C03B37/012 , G02B6/10 , G02B6/255 , G02B6/28 , G02B6/34 , H01S3/067 , G02B6/16 , G02B6/24
CPC分类号： G02B6/024 , C03B37/01217 , C03B37/01222 , C03B2201/31 , C03B2201/36 , C03B2203/02 , C03B2203/12 , C03B2203/22 , C03B2203/30 , C03B2203/31 , C03B2203/34 , G02B6/02042 , G02B6/2551 , G02B6/2552 , G02B6/2843 , H01S3/06708
摘要： A polarized wave holding optical fiber (10) of the present invention includes a plurality of core portions (12a, 12b) in a high refractive index region that are juxtaposed in a radial direction of an optical fiber, and three core portions (12a, 12b) integrally propagate one fundamental mode. A method of producing a polarized wave holding optical fiber according to the present invention comprises forming a plurality of holes (22) in parallel with one another on a diameter of a glass rod (21) having a low refractive index as a clad, inserting glass rods (23) having a high refractive index as core portions into these holes (22), heating and integrating them together to form a base material, and melt-spinning the base material. A polarized wave holding optical fiber containing a rare earth element according to the present invention is formed by adding a rare earth element to a waveguide portion of the polarized wave holding optical fiber, and an optical amplifier and a laser oscillator utilize this polarized wave holding optical fiber. A polarized wave holding optical fiber coupler according to the present invention connects at least two polarized wave holding optical fibers, and heats, fuses and stretches them. The connection method comprises heating portions near the coupling point before and after connection.

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