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71. 发明授权

US08422890B2 Fiber output stabilizer 有权
标题翻译：光纤输出稳定器
公开(公告)号：US08422890B2
公开(公告)日：2013-04-16
申请号：US12757190
申请日：2010-04-09
申请人： Masakuni Mimuro , Kuniharu Himeno , Tomoharu Kitabayashi
发明人： Masakuni Mimuro , Kuniharu Himeno , Tomoharu Kitabayashi
IPC分类号： H04B10/08 , H04B10/04 , H04J14/02
CPC分类号： H01S3/067 , H01S3/06754 , H01S3/09408 , H01S3/1301 , H01S3/1312 , H01S3/1618
摘要： A fiber output stabilizer according to an aspect of the invention stabilizes output light from a rare-earth doped optical fiber in which at least one kind of a rare-earth element is added to a core. The fiber output stabilizer includes: a monitoring light source that emits monitoring light having a wavelength shorter than that of excitation light exciting the rare-earth element; an optical multiplexer that multiplexes the monitoring light into the excitation light; an optical demultiplexer that demultiplexes the monitoring light passing through the rare-earth doped optical fiber; and a passing light detector that detects light intensity of the monitoring light from the optical demultiplexer.
摘要翻译：根据本发明的一个方面的光纤输出稳定器稳定了将掺杂有至少一种稀土元素的稀土掺杂光纤的输出光稳定在芯上。光纤输出稳定器包括：监测光源，其发射波长短于激发稀土元素的激发光的波长的监测光; 一个光复用器，将监控光复用到激发光中; 光分路器，其对通过稀土掺杂光纤的监控光进行解复用; 以及通过光检测器，其检测来自光解复用器的监视光的光强度。

72. 发明授权

US08340487B2 Rare earth-doped core optical fiber and manufacturing method thereof 有权
标题翻译：稀土掺核芯光纤及其制造方法
公开(公告)号：US08340487B2
公开(公告)日：2012-12-25
申请号：US12109612
申请日：2008-04-25
申请人： Masashi Ikeda , Naritoshi Yamada , Kuniharu Himeno , Michihiro Nakai , Tomoharu Kitabayashi
发明人： Masashi Ikeda , Naritoshi Yamada , Kuniharu Himeno , Michihiro Nakai , Tomoharu Kitabayashi
IPC分类号： G02B6/02 , G02B6/00
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
摘要： A rare earth-doped core optical fiber of the present invention includes a core comprising a silica glass containing at least aluminum and ytterbium, and a clad provided around the core and comprising a silica glass having a lower refraction index than that of the core, wherein the core has an aluminum concentration of 2% by mass or more, and ytterbium is doped into the core at such a concentration that the absorption band which appears around a wavelength of 976 nm in the absorption band by ytterbium contained in the core shows a peak absorption coefficient of 800 dB/m or less.
摘要翻译：本发明的稀土掺杂的芯光纤包括包含至少含有铝和镱的二氧化硅玻璃的芯和在芯周围设置的包层，其包含比芯的折射率低的石英玻璃，其中芯的铝浓度为2质量％以上，并且以这样的浓度将镱掺杂到芯中，使得在芯中包含的镱的吸收带中出现的波长976nm附近的吸收带表现出峰吸收系数为800dB / m以下。

73. 发明申请

US20110235165A1 AMPLIFICATION OPTICAL FIBER WITH OPTICAL COMPONENT AND FIBER LASER DEVICE INCLUDING THE SAME 有权
标题翻译：具有光学元件的放大光纤和包括其的光纤激光器件
公开(公告)号：US20110235165A1
公开(公告)日：2011-09-29
申请号：US13072918
申请日：2011-03-28
申请人： Ryo Sugimoto , Kuniharu Himeno
发明人： Ryo Sugimoto , Kuniharu Himeno
IPC分类号： H01S3/09 , H01S3/00
CPC分类号： H01S3/094015 , A61N2005/063 , G02B6/02042 , G02B6/241 , G02B6/262 , H01S3/06754 , H01S3/094007
摘要： An amplification optical fiber with an optical component capable of efficiently absorbing pumping light and a fiber laser device including the same are provided.An amplification optical fiber with an optical component in a fiber laser device 1 includes: an amplification optical fiber 30 having a core 31 doped with an active element and a clad 32 through which pumping light for amplifying light to be amplified propagating through the core 31 propagates; and an optical component 50 including at least one optical fiber 53a to 53f having a first end coupled to a portion of the clad 32 and a second end coupled to at least another portion of the clad 32 at one end 35 of the amplification optical fiber 30.
摘要翻译：提供了具有能够有效吸收泵浦光的光学部件的放大光纤和包括该放大光纤的光纤激光器件。在光纤激光器件1中具有光学部件的放大光纤包括：放大光纤30，其具有掺杂有有源元件的芯31和用于放大通过芯31传播的待放大的光的泵浦光传播的包层32 ; 以及包括至少一个光纤53a至53f的光学部件50，其具有耦合到包层32的一部分的第一端和在放大光纤30的一端35处耦合到包层32的至少另一部分的第二端。

74. 发明授权

US07593611B2 Photonic band gap fiber and method of producing the same 有权
标题翻译：光子带隙光纤及其制造方法
公开(公告)号：US07593611B2
公开(公告)日：2009-09-22
申请号：US12061417
申请日：2008-04-02
申请人： Ning Guan , Katsuhiro Takenaga , Kuniharu Himeno
发明人： Ning Guan , Katsuhiro Takenaga , Kuniharu Himeno
IPC分类号： G02B6/02 , G02B6/032 , G02B6/44
CPC分类号： C03B37/01208 , C03B37/01248 , C03B2203/14 , C03B2203/16 , C03B2203/42 , G02B6/02328 , G02B6/02333 , G02B6/02338 , G02B6/02347
摘要： A photonic band gap fiber is provided having multiple air holes in a silica portion extending in the longitudinal direction of the fiber. The fiber includes a cladding containing an air hole periodic structure in an extended triangular lattice configuration, wherein first rows each having a number of air holes at a first pitch are arranged alternately in the cross section of the fiber with multiple second rows of air holes each with multiple air holes at a second pitch which is twice the first pitch. The fiber further includes an air hole core.
摘要翻译：光纤带隙光纤被提供为具有沿着光纤的纵向方向延伸的二氧化硅部分中的多个气孔。纤维包括包含延伸的三角形格子构造的气孔周期性结构的包层，其中在纤维的横截面中交替地布置了具有第一节距的多个气孔的第一排，每排具有多个第二排气孔具有第二间距的多个气孔，其是第一节距的两倍。纤维还包括气孔芯。

75. 发明授权

US07233728B2 Dispersion compensating optical fiber 有权
标题翻译：色散补偿光纤
公开(公告)号：US07233728B2
公开(公告)日：2007-06-19
申请号：US10507078
申请日：2003-03-13
申请人： Kazuhiko Aikawa , Shogo Shimizu , Ryuji Suzuki , Masakazu Nakayama , Kuniharu Himeno
发明人： Kazuhiko Aikawa , Shogo Shimizu , Ryuji Suzuki , Masakazu Nakayama , Kuniharu Himeno
IPC分类号： G02B6/02
CPC分类号： G02B6/03644 , G02B6/02261 , G02B6/02395 , G02B6/0281 , G02B6/03627
摘要： A dispersion-compensated optical fiber which does not cause an increase in a loss if it is wound in a small reel and has a stable temperature characteristics is provided, wherein, in a wavelength range from. A dispersion-compensated optical fiber is formed such that, in at least a wavelength between 1.53 to 1.63 μm, a bending loss of with a 20 mm bending diameter is 5 dB/m or lower, a wavelength dispersion is −120 ps/nm/km or lower, a cut-off wavelength under a usage condition is 1.53 μm or lower, an outer diameter of the cladding is 80 to 100 μm, an outer diameter of a coating is 160 to 200 μm, and a viscosity of a surface of a coating resin is 10 gf/mm or lower. It is set such that b/a is 1.5 to 3.5, c/b is 1.2 to 2.0, a radius of a core is 4 to 8 μm, Δ1 is +1.6% to +2.6%, Δ2 is −0.30% to −1.4%, and Δ3 is −0.30% to +1.0%. Young's modulus of a first coating layer is 0.15 kgf/mm2 or lower and its thickness is 20 to 30 μm. Young's modulus of a second coating layer is 50 kgf/mm2 or lower and its thickness is 15 to 30 μm.
摘要翻译：提供一种色散补偿光纤，如果在小卷轴上卷绕并具有稳定的温度特性，则不会导致损耗增加，其中，在波长范围内。形成色散补偿光纤，使得在至少1.53〜1.63μm之间的波长下，弯曲直径为20mm的弯曲损耗为5dB / m以下，波长色散为-120ps / nm / km以下，使用条件下的截止波长为1.53μm以下，包层的外径为80〜100μm，涂层的外径为160〜200μm，表面的粘度涂布树脂为10gf / mm以下。 b / a设定为1.5〜3.5，c / b为1.2〜2.0，芯的半径为4〜8μm，Delta1为+ 1.6％〜+ 2.6％，Δ2为-0.30％〜-1.4 ％，Delta3为-0.30％〜+ 1.0％。第一涂层的杨氏模量为0.15kgf / mm 2以下，厚度为20〜30μm。第二涂层的杨氏模量为50kgf / mm 2以下，其厚度为15〜30μm。

76. 发明授权

US07043126B2 Graded-index multimode fiber and manufacturing method therefor 有权
公开(公告)号：US07043126B2
公开(公告)日：2006-05-09
申请号：US10891177
申请日：2004-07-15
申请人： Ning Guan , Katsuhiro Takenaga , Kuniharu Himeno
发明人： Ning Guan , Katsuhiro Takenaga , Kuniharu Himeno
IPC分类号： G02B6/02 , C03B37/23
CPC分类号： G02B6/0288
摘要： A graded-index multimode fiber includes a core containing fluorine and a cladding which is provided at an outer periphery of the core, and the fiber has a refractive index profile which satisfies the following Formula (1): n ⁡ ( r ) = { n 1 ⁡ [ 1 - 2 ⁢ ⁢ Δ ⁢ ⁢ ( r a ) α ] 1 / 2 ( O ≤ r ≤ a ) n 1 ⁡ ( 1 - 2 ⁢ ⁢ Δ ) 1 / 2 ( r > a ) ( 1 ) where n(r) is a refractive index of the optical fiber at a distance “r” from the center of the core, n1 is a refractive index at the center of the core, Δ is a relative refractive index difference of the center of the core with respect to the cladding, “a” is a core radius, and α is a refractive index profile exponential parameter.

77. 发明申请

US20060051034A1 Connection method and connecting structure for photonic crystal fiber 有权
标题翻译：光子晶体光纤的连接方法和连接结构
公开(公告)号：US20060051034A1
公开(公告)日：2006-03-09
申请号：US11154731
申请日：2005-06-17
申请人： Ryuji Suzuki , Kazuhiko Aikawa , Kuniharu Himeno , Ning Guan
发明人： Ryuji Suzuki , Kazuhiko Aikawa , Kuniharu Himeno , Ning Guan
IPC分类号： G02B6/255
CPC分类号： G02B6/2551 , G02B6/02347 , G02B6/02361
摘要： A connection method for a photonic crystal fiber for connecting the photonic crystal fiber and a fiber to be connected, the photonic crystal fiber including a cladding region having a number of microholes and a core region having a same refractive index as that of the cladding region, includes the steps of: abutting respective end faces of the photonic crystal fiber and the fiber to be connected each other; after the abutting, performing a main discharge in which an abutted portion is heated by an electric discharge under a first condition; and after the main discharge, performing an additional discharge in which the connection portion is heated by an electric discharge at least once under a second condition to increase a splice strength.
摘要翻译：一种用于连接光子晶体光纤和待连接光纤的光子晶体光纤的连接方法，包括具有多个微孔的包层区域和具有与包层区域相同折射率的纤芯区域的光子晶体光纤，包括以下步骤：将要连接的光子晶体光纤和光纤的各个端面邻接; 在抵接之后，在第一状态下进行通过放电加热抵接部的主放电; 并且在主放电之后，在第二条件下进行至少一次的放电使连接部分被加热的附加放电以增加接合强度。

78. 发明申请

US20050249471A1 Dispersion compensating optical fiber 有权
标题翻译：色散补偿光纤
公开(公告)号：US20050249471A1
公开(公告)日：2005-11-10
申请号：US10507078
申请日：2003-03-13
申请人： Kazuhiko Aikawa , Shogo Shimizu , Ryuji Suzuki , Masakazu Nakayama , Kuniharu Himeno
发明人： Kazuhiko Aikawa , Shogo Shimizu , Ryuji Suzuki , Masakazu Nakayama , Kuniharu Himeno
IPC分类号： G02B6/036 , G02B1/00 , G02B6/02 , G02B6/44 , G02B6/22
CPC分类号： G02B6/03644 , G02B6/02261 , G02B6/02395 , G02B6/0281 , G02B6/03627
摘要： A dispersion-compensated optical fiber which does not cause an increase in a loss if it is wound in a small reel and has a stable temperature characteristics is provided. A dispersion-compensated optical fiber is formed such that, in at least a wavelength between 1.53 to 1.63 μm, a bending loss of 20 mm bending diameter is 5 dB/m or lower, a wavelength dispersion is −120 ps/nm/km or lower, a cut-off wavelength under a usage condition is 1.53 μm or lower, an outer diameter of the cladding is 80 to 100 μm, an outer diameter of a coating is 160 to 200 μm, a viscosity of a surface of a coating resin is 10 gf/mm or lower. It is set such that b/a is 1.5 to 3.5, c/b is 1.2 to 2.0, a radius of a core is 4 to 8 μm, Δ1 is +1.6% to +2.6%, Δ2 is −0.30% to −1.4%, and Δ3 is −0.3 0% to +1.0%. Young's modulus of a first coating layer is 0.15 kgf/nun 2 or lower and its thickness is 20 to 30 μm. Young's modulus of a second coating layer is 50 kgf/mm2 or lower and its thickness is 15 to 30 μm.
摘要翻译：提供了一种弥散补偿光纤，如果卷绕在小卷轴中并且具有稳定的温度特性，则不会导致损耗增加。形成色散补偿光纤，使得在至少1.53〜1.63μm之间的波长下，弯曲直径为20mm的弯曲损耗为5dB / m以下，波长色散为-120ps / nm / km，较低的使用条件下的截止波长为1.53μm或更小，包层的外径为80至100μm，涂层的外径为160至200μm，涂层树脂的表面的粘度为10gf / mm以下。 b / a设定为1.5〜3.5，c / b为1.2〜2.0，芯的半径为4〜8μm，Delta 1为+ 1.6％〜+ 2.6％，Δ2为-0.30％〜 -1.4％，Delta 3为-0.3±0％〜+ 1.0％。第一涂层的杨氏模量为0.15kgf /次/秒以下，其厚度为20〜30μm。第二涂层的杨氏模量为50kgf / mm 2以下，其厚度为15〜30μm。

79. 发明申请

US20050135762A1 Optical fiber and optical fiber coupler, erbium-doped optical fiber amplifier, and optical waveguide using the same 有权
标题翻译：光纤和光纤耦合器，掺铒光纤放大器和使用其的光波导
公开(公告)号：US20050135762A1
公开(公告)日：2005-06-23
申请号：US11028756
申请日：2005-01-05
申请人： Masashi Ikeda , Masakazu Nakayama , Kuniharu Himeno , Masaaki Ohtsuka , Masakazu Oohashi , Daiichiro Tanaka
发明人： Masashi Ikeda , Masakazu Nakayama , Kuniharu Himeno , Masaaki Ohtsuka , Masakazu Oohashi , Daiichiro Tanaka
IPC分类号： C03C13/04 , G02B6/02 , G02B6/024 , G02B6/255 , H01S3/067 , G02B6/22
CPC分类号： G02B6/024 , C03B2201/02 , C03B2201/12 , C03B2201/28 , C03B2201/31 , C03B2203/23 , C03B2203/30 , C03C13/046 , C03C13/048 , G02B6/02 , G02B6/2551 , H01S3/06708 , H01S3/06729
摘要： An optical fiber that includes a core containing a first concentration of germanium, an inner cladding arranged on the core, the inner cladding containing a second concentration of germanium and having a first diffusion coefficient, and an outer cladding arranged on the inner cladding, the outer cladding having a second diffusion coefficient, where the first diffusion coefficient is larger than the second diffusion coefficient, and where the first concentration of germanium is about 200% or more of the second concentration of germanium. An optical fiber constructed in this manner can be spliced with an optical fiber having a different MFD, such as a single-mode optical fiber or an erbium-doped optical fiber, with low splice loss and a sufficient splicing strength.
摘要翻译：一种光纤，其包括含有锗的第一浓度的芯，设置在芯上的内包层，包含锗的第二浓度并具有第一扩散系数的内包层以及布置在内包层上的外包层包层具有第二扩散系数，其中第一扩散系数大于第二扩散系数，并且其中第一浓度的锗为第二浓度的锗的约200％以上。以这种方式构造的光纤可以用具有不同MFD的光纤（例如单模光纤或掺铒光纤）进行拼接，具有低接头损耗和足够的拼接强度。

80. 发明授权

US06876803B2 Optical transmission system 失效
标题翻译：光传输系统
公开(公告)号：US06876803B2
公开(公告)日：2005-04-05
申请号：US10245661
申请日：2002-09-17
申请人： Kazuhiko Aikawa , Shogo Shimizu , Masakazu Nakayama , Kuniharu Himeno
发明人： Kazuhiko Aikawa , Shogo Shimizu , Masakazu Nakayama , Kuniharu Himeno
IPC分类号： G02B6/036 , G02B6/34 , H04B10/2525 , G02B6/16
CPC分类号： G02B6/03644 , G02B6/02004 , G02B6/02261 , G02B6/0228 , G02B6/29377 , H04B10/25253
摘要： The present invention provides an optical transmission system that enables high-speed transmission of 40 Gb/s with low residual dispersion while maintaining the yield of a dispersion compensating fiber. In the present invention, the dispersion compensating fiber is connected to each span of an optical fiber for transmission. One set of an optical transmission path is formed by this optical fiber for transmission and the dispersion compensating fiber, and this one set of optical transmission path is connected in multiple stages and connected to a transmitter and a receiver. By setting the conditions of dispersion compensation in each span comparatively leniently, managing the residual dispersion of each transmission span, and suitably arranging each transmission span, an optical transmission system is composed in which adequate dispersion compensation is performed over the entire optical transmission path.
摘要翻译：本发明提供了一种光传输系统，其能够在保持色散补偿光纤的产量的同时以低残余色散实现40Gb / s的高速传输。在本发明中，色散补偿光纤连接到用于传输的光纤的每个跨度。这种光传输路径由这种用于传输的光纤和色散补偿光纤形成，并且这一组光传输路径被多级连接并连接到发射机和接收机。通过相对宽松地设置每个范围内的色散补偿条件，管理每个传输跨度的残余色散，并适当地布置每个传输跨度，组成了在整个光传输路径上执行适当的色散补偿的光传输系统。

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