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31. 发明授权

US06738549B2 Polarization maintaining optical fiber and production method for polarization maintaining optical fiber preform 有权
标题翻译：偏振维持光纤的极化保持和光纤预制棒的制造方法
公开(公告)号：US06738549B2
公开(公告)日：2004-05-18
申请号：US10091924
申请日：2002-03-05
申请人： Tadayuki Inaba , Shigeru Emori , Naoki Shamoto , Kuniharu Himeno
发明人： Tadayuki Inaba , Shigeru Emori , Naoki Shamoto , Kuniharu Himeno
IPC分类号： G02B616
CPC分类号： G02B6/105 , C03B37/01217 , C03B37/01231 , C03B2203/31
摘要： The present invention provides a polarization maintaining optical fiber of which polarization crosstalk characteristic is not deteriorated after fusing two or more polarization maintaining optical fibers, and provides a method for producing a preform thereof. The polarization maintaining optical fiber includes two stress applying portions disposed in a cladding around a core, in which an angle formed by a line connecting the center of one of the stress applying portions with the center of the core and a line connecting the center of the other stress applying portion with the center of the core is 3 degrees or less. The preform is produced by forming one insertion hole in a cladding element and then rotating the preform 180 degrees around a core element without moving the drilling tool, followed by forming the other insertion hole in the cladding element and then inserting stress applying elements into the insertion holes.
摘要翻译：本发明提供一种在熔融两种或更多种保偏光纤之后极化串扰特性不劣化的偏振保持光纤，并且提供了一种用于制造预制棒的方法。偏振保持光纤包括设置在芯周围的包层中的两个应力施加部分，其中由将应力施加部分之一的中心与芯的中心连接的线和连接芯的中心的线形成的角度具有芯的中心的其他应力施加部分为3度以下。通过在包层元件中形成一个插入孔，然后将预制件围绕芯元件旋转180度而不移动钻孔工具，然后在包层元件中形成另一插入孔，然后将应力施加元件插入到插入件中，孔。

32. 发明授权

US06687442B2 Optical fiber for preserving plane of polarization 有权
标题翻译：用于保持极化平面的光纤
公开(公告)号：US06687442B2
公开(公告)日：2004-02-03
申请号：US10047669
申请日：2002-01-14
申请人： Naoki Shamoto , Kuniharu Himeno , Akira Wada
发明人： Naoki Shamoto , Kuniharu Himeno , Akira Wada
IPC分类号： G02B602
CPC分类号： G02B6/105 , C03B37/01217 , C03B2203/31
摘要： An optical fiber for preserving the plane of polarization including a cladding and a stress imparting part disposed in the cladding, the stress imparting part comprising a base material including B2O3. The average concentration of B2O3 in the base material of the stress imparting part is in a range between about 17 and 21 wt. %, and the maximum concentration of B2O3 in the base material is in a range between about 17 and 22 wt. %. The optical fiber has excellent polarization plane preserving properties, and no concave portion is generated in its stress imparting part even under wet heat conditions.
摘要翻译：一种用于保持包括包层的偏振平面的光纤和设置在包层中的应力施加部分，所述应力赋予部分包括包含B 2 O 3的基底材料。应力赋予部的基材中的B 2 O 3的平均浓度在约17〜21重量％的范围内。％，并且基材中B 2 O 3的最大浓度在约17和22重量％之间的范围内。％。该光纤具有优异的偏振面保存特性，即使在湿热条件下也不会在其应力赋予部中产生凹部。

33. 发明授权

US06597847B2 Optical fiber for preserving plane of polarization 有权
标题翻译：用于保持极化平面的光纤
公开(公告)号：US06597847B2
公开(公告)日：2003-07-22
申请号：US10057069
申请日：2002-01-25
申请人： Naoki Shamoto , Fumihiko Nishimura , Kuniharu Himeno
发明人： Naoki Shamoto , Fumihiko Nishimura , Kuniharu Himeno
IPC分类号： G02B602
CPC分类号： G02B6/105
摘要： An optical fiber for preserving plane of polarization including a core; and a clad disposed so as to surround the core, wherein the mode field diameter non-circularity ratio of the optical fiber which is calculated according to the equation: MFD ⁢ ⁢ non ⁢ - ⁢ circularity ⁢ ⁢ ratio ⁢ ⁢ ( % ) = Ma - Mb Ma 2 + Mb 2 2 × 100 (where MFD indicates a mode field diameter, and Ma is the maximum value and Mb is the minimum value of the mode field diameter, respectively, in a wavelength region of light used), is about 3.2% or less. The connection loss of the optical fiber may be decreased to about 0.13 dB or less.
摘要翻译：一种用于保持包括芯的极化平面的光纤; 以及围绕芯的包层，其中根据以下公式计算的光纤的模场直径非圆度比（其中MFD表示模场直径，Ma是最大值，Mb是在使用的光的波长区域中的模场直径的最小值分别为约3.2％以下。光纤的连接损耗可以减小到大约0.13dB或更小。

34. 发明授权

US07817257B2 Method for measuring a differential mode delay of a multimode optical fiber 有权
标题翻译：用于测量多模光纤的差模延迟的方法
公开(公告)号：US07817257B2
公开(公告)日：2010-10-19
申请号：US10587303
申请日：2005-01-26
申请人： Katsuhiro Takenaga , Ning Guan , Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
发明人： Katsuhiro Takenaga , Ning Guan , Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
IPC分类号： G01N21/00
CPC分类号： G01M11/30
摘要： A method for measuring a multimode optical fiber includes: monitoring a temperature change within a measurement time in a DMD measurement of the multimode optical fiber, where the DMD measurement is carried out in an environment in which a magnitude of temperature change is controlled.
摘要翻译：一种测量多模光纤的方法包括：在多模光纤的DMD测量中测量测量时间内的温度变化，其中在控制温度变化幅度的环境中进行DMD测量。

35. 发明授权

US07440663B2 Single-mode optical fiber 有权
标题翻译：单模光纤
公开(公告)号：US07440663B2
公开(公告)日：2008-10-21
申请号：US11679001
申请日：2007-02-26
申请人： Shoichiro Matsuo , Hiroshi Kutami , Kuniharu Himeno , Hiroyuki Sawano
发明人： Shoichiro Matsuo , Hiroshi Kutami , Kuniharu Himeno , Hiroyuki Sawano
IPC分类号： G02B6/02
CPC分类号： G02B6/02266 , G02B6/02223 , G02B6/02242 , G02B6/03611 , G02B6/03644 , G02B6/0365 , G02B6/03672 , G02B6/03688
摘要： A single-mode optical fiber has a cut-off wavelength of 1260 nm or less, a zero-dispersion wavelength in the range of 1300 nm to 1324 nm, a zero-dispersion slope of 0.093 ps/nm2/km or less, a mode field diameter at a wavelength of 1310 nm in the range of 5.5 μm to 7.9 μm, and a bending loss of 0.5 dB or less at a wavelength of 1550 nm, the bending loss being produced when the fiber is wound around a 10-mm radius for 10 turns.
摘要翻译：单模光纤的截止波长为1260nm以下，零色散波长为1300nm〜1324nm，零色散斜率为0.093ps / nm 2 / > / km以下，波长1310nm，5.5μm〜7.9μm范围的模场直径，波长1550nm的弯曲损耗为0.5dB以下，当纤维围绕10毫米半径缠绕10圈。

36. 发明授权

US07412128B2 Higher order mode dispersion compensating fiber and mode converter for higher order fiber 失效
标题翻译：高阶模式色散补偿光纤和模式转换器用于高阶光纤
公开(公告)号：US07412128B2
公开(公告)日：2008-08-12
申请号：US11739589
申请日：2007-04-24
申请人： Ning Guan , Kazuhiko Aikawa , Masashi Ikeda , Kuniharu Himeno , Koichi Harada
发明人： Ning Guan , Kazuhiko Aikawa , Masashi Ikeda , Kuniharu Himeno , Koichi Harada
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： G02B6/03644 , G02B6/02261 , G02B6/03627 , G02B6/14 , G02B6/268 , G02B6/2835
摘要： A higher order mode dispersion compensating fiber includes an optical fiber and a first loss layer which is provided within the fiber and which attenuates a lower order mode propagating through the optical fiber while not attenuating a higher order mode which is higher than the lower order mode. A dispersion compensating fiber mode converter for a higher order fiber includes a single mode fiber; a higher order mode dispersion compensating fiber; and a fused and extended portion which has been formed by fusing and extending the single mode fiber and the higher order mode fiber. The fused and extended portion converts between the LP01 mode of the single mode fiber and the LP02 mode of the higher order mode dispersion compensating fiber.
摘要翻译：高阶模式色散补偿光纤包括光纤和第一损耗层，该第一损耗层设置在光纤内，并且衰减低通过光纤传播的低阶模，同时不衰减高于低阶模的高阶模。用于高阶光纤的色散补偿光纤模式转换器包括单模光纤; 高阶模色散补偿光纤; 以及通过熔融和延伸单模光纤和高阶模光纤而形成的熔接和延伸部分。融合和扩展部分在单模光纤的LP 01模式和高阶模色散补偿光纤的LP <02> / O模式之间转换。

37. 发明申请

US20070230885A1 EXTENDED TRIANGULAR LATTICE TYPE PHOTONIC BANDGAP FIBER 有权
标题翻译：扩展三角形型光电带宽光纤
公开(公告)号：US20070230885A1
公开(公告)日：2007-10-04
申请号：US11693509
申请日：2007-03-29
申请人： Ning GUAN , Katsuhiro Takenaga , Kuniharu Himeno
发明人： Ning GUAN , Katsuhiro Takenaga , Kuniharu Himeno
IPC分类号： G02B6/032 , G02B6/02
CPC分类号： G02B6/02347 , G02B6/02328 , G02B6/02333 , G02B6/02338
摘要： An extended triangular lattice type photonic bandgap fiber, includes a cladding and a capillary core, the cladding having a plurality of holes disposed within a silica glass portion in a longitudinal direction of the fiber and arranged in an extended triangular lattice shape, the capillary core having a plurality of holes arranged in a triangular lattice shape, wherein the cross-sectional area of the respective holes in the capillary core is smaller than that of the respective holes in the cladding.
摘要翻译：一种扩展的三角格子型光子带隙光纤，包括包层和毛细芯，所述包层具有多个孔，所述多个孔沿着所述纤维的长度方向设置在所述石英玻璃部内，并且布置成延伸的三角形格子状，所述毛细芯具有布置成三角形格子形状的多个孔，其中毛细管芯中各个孔的横截面面积小于包层中相应孔的横截面面积。

38. 发明申请

US20070201791A1 HIGHER ORDER MODE DISPERSION COMPENSATING FIBER AND MODE CONVERTER FOR HIGHER ORDER FIBER 失效
标题翻译：更高级的模式分散补偿光纤和模式转换器用于高阶光纤
公开(公告)号：US20070201791A1
公开(公告)日：2007-08-30
申请号：US11739589
申请日：2007-04-24
申请人： Ning Guan , Kazuhiko Aikawa , Masashi Ikeda , Kuniharu Himeno , Koichi Harada
发明人： Ning Guan , Kazuhiko Aikawa , Masashi Ikeda , Kuniharu Himeno , Koichi Harada
IPC分类号： G02B6/26
CPC分类号： G02B6/03644 , G02B6/02261 , G02B6/03627 , G02B6/14 , G02B6/268 , G02B6/2835
摘要： A higher order mode dispersion compensating fiber includes an optical fiber and a first loss layer which is provided within the fiber and which attenuates a lower order mode propagating through the optical fiber while not attenuating a higher order mode which is higher than the lower order mode. A dispersion compensating fiber mode converter for a higher order fiber includes a single mode fiber; a higher order mode dispersion compensating fiber; and a fused and extended portion which has been formed by fusing and extending the single mode fiber and the higher order mode fiber. The fused and extended portion converts between the LP01 mode of the single mode fiber and the LP02 mode of the higher order mode dispersion compensating fiber.
摘要翻译：高阶模式色散补偿光纤包括光纤和第一损耗层，该第一损耗层设置在光纤内，并且衰减低通过光纤传播的低阶模，同时不衰减高于低阶模的高阶模。用于高阶光纤的色散补偿光纤模式转换器包括单模光纤; 高阶模色散补偿光纤; 以及通过熔融和延伸单模光纤和高阶模光纤而形成的熔接和延伸部分。融合和扩展部分在单模光纤的LP 01模式和高阶模色散补偿光纤的LP <02> / O模式之间转换。

39. 发明申请

US20070189684A1 SINGLE-MODE OPTICAL FIBER 有权
标题翻译：单模光纤
公开(公告)号：US20070189684A1
公开(公告)日：2007-08-16
申请号：US11673471
申请日：2007-02-09
申请人： Shoichiro Matsuo , Kuniharu Himeno
发明人： Shoichiro Matsuo , Kuniharu Himeno
IPC分类号： G02B6/02
CPC分类号： G02B6/03611 , G02B6/02 , G02B6/02004 , G02B6/0281 , G02B6/03627 , G02B6/03633 , G02B6/03644 , G02B6/0365 , G02B6/03666
摘要： A single-mode optical fiber has a prescribed mode field diameter (MFD1 (μm)) at a first wavelength λ1, in which a bending loss when measured at a second wavelength λ2 (μm) and wound with a bending radius r (mm) is Lb (dB) for one bending, a connector/splice loss with an optical fiber that has a prescribed mode field diameter MFD2 (μm) at the first wavelength λ1 is Ls (dB) for one connection/splice point at the second wavelength λ2 (μm), and an mode field diameter dependence of a total loss coefficient calculated by a formula (1) has a local minimal value in a range of MFD1±0.5 μm, with the formula (1) being as follows: L=ws·Ls+wb·Lb, (1) ws+wb=1, (2) ws>0, wb>0. (3) where ws and wb in the formula (1) represent dimensionless weighting factors and are set within a range that satisfies the formulas (2) and (3).
摘要翻译：单模光纤在第一波长λ1> 1处具有规定的模场直径（MFD <1>（mum）），其中在第二波长λ1处测量时的弯曲损耗波长λ2（mum）并以弯曲半径r（mm）卷绕，对于一次弯曲为L b（dB），光纤的连接器/接头损耗为对于一个连接/接合点，具有第一波长λ1的规定模场直径MFD 2（mum）为L s（S / S）在第二波长λ2（mum）下，由公式（1）计算的总损耗系数的模场直径依赖性在MFD <1>的范围内具有局部最小值， /SUB>+0.5 mum，公式（1）如下：<？in-line-formula description =“In-line Formulas”end =“lead”？> L = w （1）<？在线公式描述=“在线公式”结束 =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead” ？>>>>>，<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ？in-line-formula description =“In-line Formulas”end =“lead”？> w > 0，w > 0。（3）式（1）中的＆lt;＆lt; S＆gt;和＆lt; b＆lt; b＆lt; ）表示无量纲加权因子，并设定在满足公式（2）和（3）的范围内。

40. 发明申请

US20070147756A1 SINGLE-MODE OPTICAL FIBER 有权
标题翻译：单模光纤
公开(公告)号：US20070147756A1
公开(公告)日：2007-06-28
申请号：US11679001
申请日：2007-02-26
申请人： Shoichiro Matsuo , Hiroshi Kutami , Kuniharu Himeno , Hiroyuki Sawano
发明人： Shoichiro Matsuo , Hiroshi Kutami , Kuniharu Himeno , Hiroyuki Sawano
IPC分类号： G02B6/02
CPC分类号： G02B6/02266 , G02B6/02223 , G02B6/02242 , G02B6/03611 , G02B6/03644 , G02B6/0365 , G02B6/03672 , G02B6/03688
摘要： A single-mode optical fiber has a cut-off wavelength of 1260 nm or less, a zero-dispersion wavelength in the range of 1300 nm to 1324 nm, a zero-dispersion slope of 0.093 ps/nm2/km or less, a mode field diameter at a wavelength of 1310 nm in the range of 5.5 μm to 7.9 μm, and a bending loss of 0.5 dB or less at a wavelength of 1550 nm, the bending loss being produced when the fiber is wound around a 10-mm radius for 10 turns.
摘要翻译：单模光纤的截止波长为1260nm以下，零色散波长为1300nm〜1324nm，零色散斜率为0.093ps / nm 2 / > / km以下，波长1310nm，5.5μm〜7.9μm范围的模场直径，波长1550nm的弯曲损耗为0.5dB以下，当纤维围绕10毫米半径缠绕10圈。

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