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1. 发明授权

US06347174B1 Non-linear optical fiber, optical fiber coil, and wavelength converter 有权
标题翻译：非线性光纤，光纤线圈和波长转换器
公开(公告)号：US06347174B1
公开(公告)日：2002-02-12
申请号：US09297173
申请日：1999-07-06
申请人： Masashi Onishi , Toshiaki Okuno , Shinji Ishikawa , Tomonori Kashiwada , Masayuki Nishimura
发明人： Masashi Onishi , Toshiaki Okuno , Shinji Ishikawa , Tomonori Kashiwada , Masayuki Nishimura
IPC分类号： H04N591
CPC分类号： G02B6/03644 , G02B6/02028 , G02B6/02242 , G02B6/02276 , G02B6/0228 , G02B6/03627 , G02B6/03655 , G02B6/105 , G02F1/383
摘要： The present invention relates to a nonlinear optical fiber which can generate a nonlinear optical phenomenon with high efficiency, an optical fiber coil wound with the nonlinear optical fiber, and a wavelength converter equipped with the nonlinear optical fiber. In particular, the nonlinear optical fiber according to the present invention has, as characteristics with respect to input light having a predetermined wavelength, a mode field diameter of 5 &mgr;m or less, a polarization mode dispersion of 1 ps/km½ or less or a fixed plane of polarization, a zero-dispersion wavelength of not less than 1.5 &mgr;m but not greater than 1.6 &mgr;m, a cutoff wavelength of not less than 1.4 &mgr;m but not greater than 1.7 &mgr;m at a length of 2 m, a transmission loss of 3 dB/km or less, and a nonlinear coefficient of 10/W/km or more. As a result of this configuration, the nonlinear optical fiber generates, with high efficiency, desirable converted light occurring upon the nonlinear phenomenon.
摘要翻译：本发明涉及一种能够高效率地产生非线性光学现象的非线性光纤，与非线性光纤缠绕的光纤线圈以及配备非线性光纤的波长转换器。特别地，根据本发明的非线性光纤作为具有预定波长的输入光的特性，模场直径为5um以下，偏振模色散为1ps / km 1/2以下或固定偏振平面，零分散波长不小于1.5μm但不大于1.6μm，截止波长不小于1.4μm，但不大于1.7μm，长度为2μm，传输损耗为3dB / km以下，非线性系数为10 / W / km以上。作为该结构的结果，非线性光纤以非线性现象产生期望的转换光，高效率地产生。

2. 发明授权

US06501892B1 Dispersion-compensating fiber 有权
标题翻译：色散补偿光纤
公开(公告)号：US06501892B1
公开(公告)日：2002-12-31
申请号：US09580971
申请日：2000-05-30
申请人： Toshiaki Okuno , Shinji Ishikawa , Tomonori Kashiwada
发明人： Toshiaki Okuno , Shinji Ishikawa , Tomonori Kashiwada
IPC分类号： G02B602
CPC分类号： G02B6/02242 , G02B6/02261 , G02B6/03627 , G02B6/03644 , G02B6/29377 , H04B10/2525
摘要： The dispersion-compensating fiber according to the present invention is an optical fiber having a structure which, when constituting an optical transmission line together with a dispersion-shifted fiber, whose zero-dispersion wavelength is in a 1.5-&mgr;m wavelength band, for guiding light signals in the 1.5-&mgr;m wavelength band or 1.6-&mgr;m wavelength band, is capable of improving transmission characteristics of the whole optical transmission line and allowing the dispersion to be compensated for efficiently and the size thereof to become smaller; and has a structure for improving the total dispersion slope of the optical transmission line while in a state fully compensating for the dispersion of the dispersion-shifted fiber. This dispersion-compensating fiber has a triple cladding structure having a first cladding, a second cladding, and a third cladding which are successively provided on the outer periphery of a core; and, in a state where the relative refractive index differences in the regions and outside diameters thereof are optimized so as to compensate for the dispersion-shifted fiber, realizes an optical transmission system having a favorable total dispersion slope.
摘要翻译：根据本发明的色散补偿光纤是具有这样的结构的光纤，该光纤在与零色散波长为1.5μm波段的色散位移光纤一起构成光传输线时，用于引导光在1.5μm波长带或1.6μm波长带的信号能够改善整个光传输线的传输特性，并且可以有效地补偿色散并使其尺寸变小; 并且具有在完全补偿色散位移光纤的色散的状态下改善光传输线的总色散斜率的结构。该色散补偿光纤具有三层包层结构，其具有连续设置在芯的外周上的第一包层，第二包层和第三包层; 并且在其区域和外径的相对折射率差被优化以补偿色散位移光纤的状态下，实现具有良好的总色散斜率的光传输系统。

3. 发明授权

US06611637B1 Dispersion-compensating module 失效
标题翻译：色散补偿模块
公开(公告)号：US06611637B1
公开(公告)日：2003-08-26
申请号：US09542280
申请日：2000-04-04
申请人： Toshiaki Okuno , Shinji Ishikawa
发明人： Toshiaki Okuno , Shinji Ishikawa
IPC分类号： G02B634
CPC分类号： G02B6/29377 , G02B6/29317 , G02B6/29337 , G02B6/29394 , H04B10/2519 , H04B10/2525
摘要： The present invention relates to a dispersion-compensating module functioning to compensate for the chromatic deviation occurring in an optical transmission line and comprising a structure adapted to be easily inserted in an optical transmission system. The dispersion-compensating module according to the present invention comprises an input end and an output end for signal light, and also comprises dispersion-compensating means such as a dispersion-compensating optical fiber or the like, and loss-equalizing means for compensating for at least the wavelength-dependent loss deviation in the dispersion-compensating means.
摘要翻译：本发明涉及一种色散补偿模块，其功能是补偿在光传输线路中发生的色差，并包括适于容易地插入到光传输系统中的结构。根据本发明的色散补偿模块包括用于信号光的输入端和输出端，并且还包括色散补偿装置，例如色散补偿光纤等，以及损耗均衡装置，用于补偿色散补偿装置中的波长相关损耗偏差最小。

4. 发明授权

US6116055A Method of making synthetic silica glass 有权
标题翻译：制造合成石英玻璃的方法
公开(公告)号：US6116055A
公开(公告)日：2000-09-12
申请号：US191123
申请日：1998-11-13
申请人： Shinji Ishikawa , Masashi Onishi
发明人： Shinji Ishikawa , Masashi Onishi
IPC分类号： G02B6/00 , C03B8/04 , C03B20/00 , C03B37/014 , C03C13/04
CPC分类号： C03C13/045 , C03B37/01446 , C03B2201/20
摘要： Disclosed is a synthetic silica-glass fabricating method in which the doping of chlorine into silica glass made by using a flame hydrolysis or thermal oxidation is increased. The process comprises the steps of producing a porous deposit of silica-glass particles through treatment of gaseous silicon compounds by the flame hydrolysis or the thermal oxidation process; and consolidating the porous deposit by a heat treatment in an atmosphere including an inert gas and silicon tetrachloride (SiCl.sub.4) gas.
摘要翻译：公开了一种合成二氧化硅玻璃制造方法，其中通过使用火焰水解或热氧化将氯掺入二氧化硅玻璃中增加。该方法包括通过火焰水解或热氧化方法处理气态硅化合物来生产二氧化硅玻璃颗粒的多孔沉积物的步骤; 并且在包括惰性气体和四氯化硅（SiCl 4）气体的气氛中通过热处理来固化多孔沉积物。

5. 发明授权

US06868213B2 Optical fiber and production method therefor 有权
标题翻译：光纤及其制作方法
公开(公告)号：US06868213B2
公开(公告)日：2005-03-15
申请号：US10121724
申请日：2002-04-15
申请人： Eisuke Sasaoka , Takemi Hasegawa , Masashi Onishi , Shinji Ishikawa
发明人： Eisuke Sasaoka , Takemi Hasegawa , Masashi Onishi , Shinji Ishikawa
IPC分类号： G02B6/02 , C03B37/15 , G02B6/032
CPC分类号： G02B6/02328 , C03B37/15 , C03B2203/16 , G02B6/02361 , G02B6/02366 , G02B6/02376 , G02B6/02385
摘要： The present invention provides an optical fiber which has a hollow portion extending along the axis and which reduces degradation of the optical characteristics, and a production method thereof. An optical fiber includes a hollow core portion, and a cladding portion which surrounds the hollow core portion. The refractive index of the hollow core portion is lower than that of the cladding portion. The hollow core portion is closed at both ends of the optical fiber so as to form sealed portions. The sealed portions are formed by, for example, heating the optical fiber and softening the cladding portion. This prevents foreign material and the like from entering the hollow core portion. Ferrules of optical connectors are attached to both end faces of the optical fiber.
摘要翻译：本发明提供一种光纤，该光纤具有沿轴线延伸的中空部分，并且减少了光学特性的劣化及其制造方法。光纤包括中空芯部分和围绕中空芯部分的包层部分。中空芯部的折射率低于包层部的折射率。中空芯部在光纤的两端封闭，形成密封部分。密封部分通过例如加热光纤并使包层部分软化而形成。这防止异物等进入中空芯部。光连接器的套圈连接到光纤的两个端面。

6. 发明申请

US20060262387A1 Optical amplifier fiber 审中-公开
标题翻译：光放大器光纤
公开(公告)号：US20060262387A1
公开(公告)日：2006-11-23
申请号：US11434073
申请日：2006-05-16
申请人： Tetsuya Haruna , Toshiki Taru , Masashi Onishi , Motoki Kakui , Shinji Ishikawa
发明人： Tetsuya Haruna , Toshiki Taru , Masashi Onishi , Motoki Kakui , Shinji Ishikawa
IPC分类号： H01S3/00 , H04B10/12
CPC分类号： H01S3/06716
摘要： Provided is an optical amplifier fiber in which both increasing output light power and sufficiently inhibiting the occurrence of nonlinear optical phenomenon can be compatibly achieved. In addition, an optical amplifier and light source equipment, in which such optical amplifier fiber is used, are provided. The optical amplifier fiber comprises (1) a core region doped with an aluminum element in the range of 1 wt % to 10 wt %, an erbium element in the range of 1000 wt. ppm to 5000 wt. ppm, and a fluorine element, the core region having an outer diameter in the range of 10 μm to 30 μm, and (2) a cladding region surrounding the core region and having a refractive index that is lower than the core region, wherein the relative refractive index difference of the core region relative to the cladding region is 0.3% or more and 2.0% or less.
摘要翻译：提供了可以兼容地实现增加输出光功率并充分抑制非线性光学现象的发生的光放大器光纤。此外，提供了使用这种光放大器光纤的光放大器和光源设备。光放大器光纤包括（1）掺杂有1重量％至10重量％范围的铝元素的芯区域，铒元素在1000重量％范围内。 ppm至5000wt。 ppm，以及氟元素，芯区域的外径在10μm〜30μm的范围内，（2）围绕芯区域的折射率低于芯区域的包层区域，其中，芯区域相对于包层区域的相对折射率差为0.3％以上且2.0％以下。

7. 发明授权

US06813065B2 Raman amplifier and optical communication system 失效
标题翻译：拉曼放大器和光通信系统
公开(公告)号：US06813065B2
公开(公告)日：2004-11-02
申请号：US09929503
申请日：2001-08-15
申请人： Tetsufumi Tsuzaki , Motoki Kakui , Shinji Ishikawa , Masashi Onishi
发明人： Tetsufumi Tsuzaki , Motoki Kakui , Shinji Ishikawa , Masashi Onishi
IPC分类号： H01S300
CPC分类号： H04B10/2916 , H01S3/06716 , H01S3/06758 , H01S3/302 , H04B2210/003
摘要： Disclosed are a gain module and an optical communication system which have gain in a broad wavelength range and are of low cost. The gain module 10 has two optical fibers 111 and 112 which differ from each other with respect to the composition of their respective optical waveguide region and which are connected in series. Because they differ from each other with respect to the quantity of their respective Stokes shift, they have gain in a different wavelength, respectively. The signal lights are introduced into the input end 10a, amplified with the gain module 10 in a wide wavelength range where an optical fiber has a Raman amplification gain, and are emitted from the output end 10b.
摘要翻译：公开了增益模块和光通信系统，其具有在宽波长范围内的增益并且具有低成本。增益模块10具有两个光纤111和112，它们相对于它们各自的光波导区域的组成而彼此不同，并且串联连接。因为它们相对于它们各自的斯托克斯位移的量彼此不同，它们分别具有不同波长的增益。信号光被引入到输入端10a中，在宽的波长范围内用增益模块10放大，其中光纤具有拉曼放大增益，并从输出端10b发射。

8. 发明授权

US08102596B2 Optical fiber for amplification 有权
标题翻译：用于放大的光纤
公开(公告)号：US08102596B2
公开(公告)日：2012-01-24
申请号：US12160009
申请日：2006-12-27
申请人： Tetsuya Haruna , Junji Iihara , Masashi Onishi , Shinji Ishikawa
发明人： Tetsuya Haruna , Junji Iihara , Masashi Onishi , Shinji Ishikawa
IPC分类号： H01S3/067 , C03C3/06 , C03C13/04 , C03C4/08
CPC分类号： H01S3/06708 , H01S3/06716 , H01S3/06729 , H01S3/1608
摘要： Provided is an erbium doped optical fiber (EDF) for amplification which allows an easy estimation of the amplification performance and high production stability. The fiber includes a core and a cladding. The core is mainly made of silica glass and doped with erbium at a concentration of 500 wtppm or more and 2500 wtppm or less. In the fiber, the cutoff wavelength is 850 nm or more and 1450 nm or less, the mode field diameter is 4.5 μm or more and 6.5 μm or less, the polarization mode dispersion is not more than 0.1 ps per 10 m, the coordination number of oxygen elements around an erbium element in the core is one or more and eight or less, and the bond length between erbium and oxygen is 0.225 nm or more and 0.235 or less.
摘要翻译：提供了用于放大的掺铒光纤（EDF），其允许容易地估计放大性能和高生产稳定性。纤维包括芯和包层。核心主要由石英玻璃制成，掺杂浓度为500重量ppm以上且2500重量ppm以下的铒。在光纤中，截止波长为850nm以上且1450nm以下，模场直径为4.5μm以上且6.5μm以下，偏振模色散不超过0.1μm/10μm，配位数核中的铒元素周围的氧元素为一个以上且八个以下，铒与氧之间的键长为0.225nm以上且0.235以下。

9. 发明申请

US20090185263A1 OPTICAL FIBER FOR AMPLIFICATION 有权
标题翻译：用于放大的光纤
公开(公告)号：US20090185263A1
公开(公告)日：2009-07-23
申请号：US12160009
申请日：2006-12-27
申请人： Tetsuya Haruna , Junji Iihara , Masashi Onishi , Shinji Ishikawa
发明人： Tetsuya Haruna , Junji Iihara , Masashi Onishi , Shinji Ishikawa
IPC分类号： H01S3/067
CPC分类号： H01S3/06708 , H01S3/06716 , H01S3/06729 , H01S3/1608
摘要： Provided is an erbium doped optical fiber (EDF) for amplification which allows an easy estimation of the amplification performance and high production stability. The fiber includes a core and a cladding. The core is mainly made of silica glass and doped with erbium at a concentration of 500 wtppm or more and 2500 wtppm or less. In the fiber, the cutoff wavelength is 850 nm or more and 1450 nm or less, the mode field diameter is 4.5 μm or more and 6.5 μm or less, the polarization mode dispersion is not more than 0.1 ps per 10 m, the coordination number of oxygen elements around an erbium element in the core is one or more and eight or less, and the bond length between erbium and oxygen is 0.225 nm or more and 0.235 or less.
摘要翻译：提供了用于放大的掺铒光纤（EDF），其允许容易地估计放大性能和高生产稳定性。纤维包括芯和包层。核心主要由石英玻璃制成，掺杂浓度为500重量ppm以上且2500重量ppm以下的铒。在光纤中，截止波长为850nm以上且1450nm以下，模场直径为4.5μm以上至6.5μm以下，偏振模色散不超过0.1μm/10μm，配位数核中的铒元素周围的氧元素为一个以上且八个以下，铒与氧之间的键长为0.225nm以上且0.235以下。

10. 发明授权

US06661954B2 Optical transmission line including a connected part of optical fibers and connecting method 有权
标题翻译：光传输线包括光纤的连接部分和连接方法
公开(公告)号：US06661954B2
公开(公告)日：2003-12-09
申请号：US10061210
申请日：2002-02-04
申请人： Eisuke Sasaoka , Takemi Hasegawa , Shinji Ishikawa , Masashi Onishi
发明人： Eisuke Sasaoka , Takemi Hasegawa , Shinji Ishikawa , Masashi Onishi
IPC分类号： G02B642
CPC分类号： G02B6/02328 , G02B6/02333 , G02B6/02357 , G02B6/02361 , G02B6/02366 , G02B6/02385 , G02B6/262 , G02B6/3801
摘要： Provided are an optical transmission line including a connected part of the optical fibers having different refractive index profiles, wherein at least one of the optical fibers has a hollow region, and a method for connecting such optical fibers, wherein connection loss in a connection of such optical fibers is reduced. In the case of connecting an optical fiber 1, which does not have a hollow region and which consists of a core region 3 and a cladding region 4, and an optical fiber 2, which consists of a hollow core region 5 and a cladding region 6 having a plurality of refractive index variation parts 7 which extend along optical fiber 2, matching oil M is first injected into the connecting end portion of the hollow core region 5 to be connected with the optical fiber 1. The matching oil M is a substance that has a matched refractive index greater than the refractive index of the material which forms the cladding region 6. Subsequently, one end portion of the optical fiber 1 and the connecting end portion of the optical fiber 2, wherein the matching oil M is injected, are inserted into the glass pipe 8, and the optical fiber 1 and the optical fiber 2 are connected.
摘要翻译：提供一种光传输线，其包括具有不同折射率分布的光纤的连接部分，其中至少一个光纤具有中空区域，以及连接这种光纤的方法，其中连接这种光纤的连接损耗光纤减少。在连接不具有由芯区域3和包层区域4构成的中空区域的光纤1和由中空芯区域5和包层区域6构成的光纤2的情况下具有沿着光纤2延伸的多个折射率变化部7，首先将匹配油M注入到与光纤1连接的中空芯区域5的连接端部。匹配油M是具有大于形成包层区域6的材料的折射率的匹配折射率。随后，光纤1的一个端部和光纤2的连接端部（其中注入匹配油M）是插入玻璃管8中，并且光纤1和光纤2连接。

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