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81. 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。

82. 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。

83. 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。

84. 发明授权

US07181115B2 Dispersion compensating fiber module, and optical fiber transmission line 失效
标题翻译：色散补偿光纤模块和光纤传输线
公开(公告)号：US07181115B2
公开(公告)日：2007-02-20
申请号：US11072533
申请日：2005-03-07
申请人： Kazuhiko Aikawa , Ryuji Suzuki , Kuniharu Himeno
发明人： Kazuhiko Aikawa , Ryuji Suzuki , Kuniharu Himeno
IPC分类号： G02B6/02 , G02B6/36
CPC分类号： G02B6/29377 , G02B6/02233 , G02B6/02242 , G02B6/02261 , G02B6/02271 , G02B6/0228 , G02B6/0281 , G02B6/03666 , H04B10/2525
摘要： A dispersion compensating fiber module which, when connected to an optical fiber which exhibits, at a wavelength of 1.55 μm, a chromatic dispersion of between +2 and +6 ps/nm/km, a dispersion slope of between +0.075 ps/nm2/km and +0.095 ps/nm2/pm, and a relative dispersion slope of between 0.016 nm−1 and 0.024 nm−1, performs compensation so that the residual dispersion of the connected optical fiber is reduced, the dispersion compensating fiber module includes a dispersion compensating fiber and at least one optical fiber fused to the dispersion compensating fiber, in which the dispersion compensating fiber module exhibits at a wavelength of 1.55 μm, a relative dispersion slope of between 0.016 nm−1 and 0.026 nm−1; and in a wavelength range between 1.525 μm and 1.565 μm, a maximum residual dispersion difference, when converted per km of the transmission optical fiber, of less than or equal to 0.4 ps/nm/km.
摘要翻译：一种色散补偿光纤模块，当与在1.55μm波长下表现出+2和+6ps / nm / km之间的色散的光纤连接时，色散斜率在+ 0.075ps / nm < SUP> 2 / km和+0.095ps / nm 2 / pm，以及0.016nm -1至0.024nm之间的相对色散斜率， -1执行补偿，使得连接的光纤的残余色散减小，色散补偿光纤模块包括色散补偿光纤和融合到色散补偿光纤的至少一个光纤，其中色散补偿光纤模块呈现波长为1.55μm，相对色散斜率为0.016nm -1至0.026nm -1; 并且在1.525μm和1.565μm之间的波长范围内，当传输光纤每km转换时，最大残余色散差小于或等于0.4ps / nm / km。

85. 发明申请

US20060062534A1 Dispersion compensating optical fiber and dispersion compensating optical fiber module 有权
公开(公告)号：US20060062534A1
公开(公告)日：2006-03-23
申请号：US11203890
申请日：2005-08-15
申请人： Kazuhiko Aikawa , Yutaka Nagasawa , Shogo Shimizu , Takaaki Suzuki , Masakazu Nakayama , Kuniharu Himeno , Ryozo Yamauchi , Keiji Ohashi , Munehisa Fujimaki
发明人： Kazuhiko Aikawa , Yutaka Nagasawa , Shogo Shimizu , Takaaki Suzuki , Masakazu Nakayama , Kuniharu Himeno , Ryozo Yamauchi , Keiji Ohashi , Munehisa Fujimaki
IPC分类号： G02B6/036
CPC分类号： G02B6/02009 , G02B6/02261 , G02B6/0228 , G02B6/02395 , G02B6/03627 , G02B6/03644
摘要： A dispersion compensating optical fiber for NZ-DSFs, includes: an uncovered dispersion compensating optical fiber; a double-layered resin coating disposed around the uncovered dispersion compensating optical fiber; and an outer coating layer having a thickness of 3 to 7 μm, containing silicone in an amount of 1 to 5% by weight, and disposed around the double-layered resin coating. The outer diameter of the uncovered dispersion compensating optical fiber is in a range from 90 to 125 μm, an outer diameter of the dispersion compensating optical fiber is in a range from 180 to 250 μm, and the amount of silicone contained in the outer coating layer is determined such that an adhesive property of the outer coating layer is 1 gf/mm or less.

86. 发明申请

US20060034573A1 Method for compensating modal dispersion in multimode optical fiber transmission path 有权
公开(公告)号：US20060034573A1
公开(公告)日：2006-02-16
申请号：US11194463
申请日：2005-08-02
申请人： Ning Guan , Shinji Habu , Katsuhiro Takenaga , Kuniharu Himeno , Koichi Harada
发明人： Ning Guan , Shinji Habu , Katsuhiro Takenaga , Kuniharu Himeno , Koichi Harada
IPC分类号： G02B6/26
CPC分类号： G02B6/268 , G02B6/0288 , H04B10/2581
摘要： In an optical transmission path including multimode optical fibers, modal dispersion is reduced so that signal light can be transmitted at high speed and across a broad band, at low-cost and over a long distance. To reduce modal dispersion, when the transmission path is constructed by coupling a plurality of multimode optical fibers, a length ratio for the multimode optical fibers that obtains the maximum band of the optical transmission path is determined, and the multimode optical fibers are coupled according to this length ratio. The multimode optical fibers that are used have specific refractive index profiles as mode dispersion-compensating fibers. The compensated fiber and the mode dispersion-compensating fiber are coupled with specific lengths.

87. 发明申请

US20050259241A1 Optical fiber polarization mode dispersion measurement method and measurement device 有权
标题翻译：光纤偏振模色散测量方法及测量装置
公开(公告)号：US20050259241A1
公开(公告)日：2005-11-24
申请号：US10521236
申请日：2003-07-18
申请人： Shoji Tanigawa , Tomoharu Sagawa , Masataka Ikeda , Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
发明人： Shoji Tanigawa , Tomoharu Sagawa , Masataka Ikeda , Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
IPC分类号： G01M11/00 , G01M11/02 , G01N21/00
CPC分类号： G01M11/3181
摘要： A method of measuring polarization mode dispersion of an optical fiber includes inputting linearly polarized pulse light into an optical fiber, separating the input linearly polarized light from backscattered light from the optical fiber, detecting a light intensity of the backscattered light as time series data since the generation of the pulse light, calculating a fluctuation of the detected light intensity in the time series data, and evaluating polarization mode dispersion in the optical fiber, based on the calculated fluctuation value.
摘要翻译：测量光纤的偏振模色散的方法包括将线性偏振脉冲光输入到光纤中，将输入的线性偏振光与来自光纤的反向散射光分离，从后向散射光的光强度作为时间序列数据检测，因为产生脉冲光，计算时间序列数据中的检测光强度的波动，并且基于所计算的波动值来评估光纤中的偏振模色散。

88. 发明授权

US06895140B2 Single-mode optical fiber and composite optical line 失效
标题翻译：单模光纤和复合光线
公开(公告)号：US06895140B2
公开(公告)日：2005-05-17
申请号：US10270577
申请日：2002-10-16
申请人： Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
发明人： Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
IPC分类号： G02B6/036 , H04J14/02 , G02B5/172
CPC分类号： G02B6/02242 , G02B6/02004 , G02B6/03644
摘要： A single-mode optical fiber has a core and a cladding, and is produced in such a way that, when the radii of layers having individual refractive indexes are varied, more than one optical properties of the core, for example, the effective core area Aeff and the dispersion slope exhibit respective limiting values within a specific range of a reference radius. Such optical fibers provide basically the same optical properties but enable to vary the chromatic dispersion within a specific range so that the single-mode optical fiber is ideally suited for use in high-speed and large capacity communication systems.
摘要翻译：单模光纤具有芯和包层，并且以这样的方式制造，当具有各自折射率的层的半径变化时，芯的多于一个的光学性质，例如有效核心区域色散斜率在参考半径的特定范围内显示相应的限制值。这种光纤提供基本上相同的光学性能，但是能够将色散改变在特定范围内，使得单模光纤理想地适用于高速和大容量通信系统。

89. 发明授权

US5689578A 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：极化波保持光纤，其制造方法，其连接方法，光放大器，激光振荡器和偏振波保持光纤耦合器
公开(公告)号：US5689578A
公开(公告)日：1997-11-18
申请号：US318848
申请日：1994-10-25
申请人： Ryozo Yamauchi , Kuniharu Himeno , Minoru Sawada , Fumio Suzuki , Kazuhiko Aikawa , Tetsuo Nozawa , Shigefumi Yamasaki
发明人： Ryozo Yamauchi , Kuniharu Himeno , Minoru Sawada , Fumio Suzuki , Kazuhiko Aikawa , Tetsuo Nozawa , Shigefumi Yamasaki
IPC分类号： C03B37/012 , G02B6/10 , G02B6/255 , G02B6/28 , G02B6/34 , H01S3/067
CPC分类号： G02B6/024 , C03B37/01217 , C03B37/01222 , G02B6/02042 , G02B6/2843 , H01S3/06708 , C03B2201/31 , C03B2201/36 , C03B2203/02 , C03B2203/12 , C03B2203/22 , C03B2203/30 , C03B2203/31 , C03B2203/34 , G02B6/2551 , G02B6/2552
摘要： The polarization-maintaining optical fiber 10 of the present invention is designed so that a plurality of core portions 12a,12b which have a high refractive index is provided in parallel along a single diameter direction in the cross section of the optical fiber, these core portions 12a,12b cooperating to propagate a single fundamental mode. In the production method for the polarization-maintaining optical fiber of the present invention, a plurality of holes 22 are formed longitudinally in parallel along a single diameter direction of a glass rod 21 having a low refractive index which forms the cladding, glass rods 23 for core use having a high refractive index which form the core portions are inserted into these holes 22, heating to form a unitary body is carried out, creating a preform which is then drawn. Further, the rare-earth-doped polarization-maintaining optical fiber of the present invention uses a rare earth element to dope the optical waveguide portion of the polarization-maintaining optical fiber, and can be employed in a light amplifier or laser oscillator. Moreover, the polarization-maintaining optical fiber coupler of the present invention is formed by bringing two or more polarization maintaining optical fibers into contact, heating, fusing and elongating them, and heating the vicinity of the connection point before and after connection.
摘要翻译： PCT No.PCT / JP94 / 00300 Sec。 371日期：1994年10月25日 102（e）日期1994年10月25日PCT 1994年2月24日PCT PCT。第WO94 / 17714号公报日期1994年9月1日本发明的偏振波保持光纤10被设计成使得在光学部件的横截面中沿着单一直径方向平行设置多个具有高折射率的芯部12a，12b 光纤，这些芯部分12a，12b协作传播单个基本模式。在本发明的偏振波保持光纤的制造方法中，多个孔22沿着形成包层的折射率低的玻璃棒21的单一直径方向纵向平行地形成，玻璃棒23用于形成芯部的具有高折射率的芯用途被插入到这些孔22中，进行加热以形成整体，形成预先形成的预成型体。此外，本发明的稀土掺杂偏振保持光纤使用稀土元素来掺杂保偏光纤的光波导部分，并且可以用在光放大器或激光振荡器中。此外，本发明的偏振保持光纤耦合器是通过使两个或更多个保偏光纤接触，加热，熔化和拉伸，以及在连接之前和之后加热连接点附近而形成的。

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