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41. 发明申请

US20070283721A1 Method Of Producing An Optical Fiber Preform 有权
标题翻译：制造光纤预制件的方法
公开(公告)号：US20070283721A1
公开(公告)日：2007-12-13
申请号：US11665600
申请日：2005-10-20
申请人： Tetsuya Nakanishi , Masaaki Hirano
发明人： Tetsuya Nakanishi , Masaaki Hirano
IPC分类号： C03B37/018
CPC分类号： C03B37/01823 , C03B2207/66 , Y02P40/57
摘要： Glass can be synthesized and deposited at a high rate by the inside CVD method using a plasma burner in a manner such that unconsolidated portions or bubbles are little generated. The method includes a step of depositing a glass film on the inner wall surface of a starting pipe. In a first aspect, temperature the pipe is controlled not to exceed (1800+100×d)° C., a temperature of (1100+100×d)° C. or higher being continued for 20 seconds or more at each point of the pipe, where d (mm) represents the wall thickness of the pipe. In a second aspect, the burner includes at least two inlets and has an inner diameter of 80 mm or more, and the deposition step is performed in the relationship, 150 mm/s
摘要翻译：可以通过使用等离子体燃烧器的内部CVD方法以高速率合成和沉积玻璃，使得很少产生未固化的部分或气泡。该方法包括在起始管的内壁表面上沉积玻璃膜的步骤。在第一方面，管道的温度控制不超过（1800 + 100×d）℃，（1100 + 100×d）℃或更高的温度在管道的每个点处持续20秒以上，其中 d（mm）表示管道的壁厚。在第二方面，燃烧器包括至少两个入口并且具有80mm或更大的内径，并且沉积步骤以150mm / s（引入燃烧器的气体的总流量） /（燃烧器的截面积）<600 mm / s。

42. 发明申请

US20070258717A1 Optical device and wavelength conversion method and optical fiber suitable for them 审中-公开
标题翻译：光器件和波长转换方法以及适合它们的光纤
公开(公告)号：US20070258717A1
公开(公告)日：2007-11-08
申请号：US11797212
申请日：2007-05-01
申请人： Masaaki Hirano , Tetsuya Nakanishi , Toshiaki Okuno , Masato Tanaka
发明人： Masaaki Hirano , Tetsuya Nakanishi , Toshiaki Okuno , Masato Tanaka
IPC分类号： H04J14/02
CPC分类号： G02F1/395 , G02B6/02028 , G02B6/02242 , G02B6/02252 , G02B6/02266 , G02B6/02285 , G02B6/03627 , G02B6/03644 , G02B6/0365 , G02B6/03666
摘要： An optical device and wavelength conversion method can selectively perform wavelength conversion of a probe lightwave. An optical fiber is suitable for them. The device 1 comprises (a) a pump light source 12 for outputting a pump lightwave having a wavelength of λpump and (b) an optical fiber 11 that guides the pump lightwave and a probe lightwave having a wavelength of λprobe and generates through a nonlinear optical phenomenon an idler lightwave having a newly produced wavelength of λidler that is in accordance with the wavelength λprobe. The wavelength λprobe dependence of the efficiency of the wavelength conversion has a main band including the wavelength λpump and a subband distinct from the main band. The probe lightwave included in the subband is guided in the optical fiber 11 to generate in it the idler lightwave having the wavelength λidler that is in accordance with the wavelength λprobe.
摘要翻译：光学器件和波长转换方法可以选择性地执行探针光波的波长转换。光纤适合它们。装置1包括：（a）泵浦光源12，用于输出具有波长λλ泵的泵浦光波;以及（b）引导泵浦光波的光纤11和具有波长的探针光波的λ＆lt;探针＆lt;＆gt;并且通过非线性光学现象产生具有根据波长λ探针。波长转换效率的波长λ> probe has has has has has has has。。。。。。。。。。。。。。。。。。。。。。。。。。。。。包括在子带中的探测光波在光纤11中被引导，以在其中产生具有与波长λ探针的波长相匹配的波长λ惰性的惰性光波。

43. 发明申请

US20070047962A1 Optical fiber and optical device using the same 有权
标题翻译：光纤和光学器件使用相同
公开(公告)号：US20070047962A1
公开(公告)日：2007-03-01
申请号：US11483979
申请日：2006-07-11
申请人： Masaaki Hirano , Tetsuya Nakanishi , Toshiaki Okuno
发明人： Masaaki Hirano , Tetsuya Nakanishi , Toshiaki Okuno
IPC分类号： H04B10/12
CPC分类号： G02B6/03666 , G02B6/02028 , G02B6/02242 , G02B6/02257 , G02B6/02271 , G02B6/0228 , G02B6/0281 , G02B6/03627 , G02B6/03644 , G02F1/365 , G02F2001/3528
摘要： This invention relates to an optical fiber and others having a structure for efficiently generating SC light while realizing high nonlinearity over a wide band. The optical fiber has at least a center core region, and an outside cladding region having a refractive index lower than that of the center core region and provided on an outer periphery of the center core region. The optical fiber has, as characteristics to light of a wavelength λ1 in a wavelength range of 1520 nm to 1620 nm, a chromatic dispersion of −2 ps/nm/km to +2 ps/nm/km, a dispersion slope of −0.009 ps/nm2/km to +0.009 ps/nm2/km, and a fourth-order dispersion of −1.8×10−4 ps/nm3/km to +1.8×10−4 ps/nm3/km.
摘要翻译：本发明涉及一种具有用于在宽带上实现高非线性的同时有效地产生SC光的结构的光纤等。该光纤至少具有中心纤芯区域和折射率低于中心纤芯区域的折射率的外包层区域，并且设置在中心纤芯区域的外周。在1520nm至1620nm的波长范围内，作为波长λ1的光的特性，光纤具有-2ps / nm / km至+ 2ps / nm / km的色散，色散斜率为 - 0.009ps / nm 2 / km至+0.009ps / nm 2 / km，第四阶色散为-1.8×10 -4 / ps / nm 3 / km至+ 1.8×10 -4 ps / nm 3 / km。

44. 发明申请

US20080063346A1 Optical fiber and optical fiber device 有权
标题翻译：光纤和光纤设备
公开(公告)号：US20080063346A1
公开(公告)日：2008-03-13
申请号：US11896999
申请日：2007-09-07
申请人： Tetsuya Nakanishi , Takemi Hasegawa , Masaaki Hirano
发明人： Tetsuya Nakanishi , Takemi Hasegawa , Masaaki Hirano
IPC分类号： G02B6/02 , G02B6/00
CPC分类号： G02B6/03627 , C03C13/046 , G02B6/02028 , G02B6/02242 , G02F1/3515 , G02F1/395 , H01S3/06716 , H01S3/302 , H01S2301/02
摘要： An optical fiber and an optical fiber device, which can suppress generation of the stimulated Brillouin scattering while maintaining large nonlinearity. The fiber includes a central core which is made of SiO2 as a main component and contains Al2O3 at concentration of 15 wt % or more. The fiber is allowed to propagate only a fundamental mode and has an absolute value of chromatic dispersion of 5 ps/nm/km or less at a predetermined wavelength. The device includes the fiber having the above composition. The fiber guides first light and second light having different wavelengths to propagate therethrough such that the first light and the second light interact with each other by a nonlinear optical phenomenon during the propagation, thus causing the fiber to output the first light or the second light modulated by the nonlinear optical phenomenon or third light newly produced by the nonlinear optical phenomenon and having a different wavelength.
摘要翻译：一种光纤和光纤器件，其可以抑制受激布里渊散射的产生，同时保持非常大的非线性。该纤维包括以SiO 2主要成分为主成分并含有15重量％浓度的Al 2 O 3 O 3的中心芯，或更多。允许光纤仅传播基本模式，并且在预定波长下具有5ps / nm / km或更小的色散的绝对值。该装置包括具有上述组成的纤维。纤维引导具有不同波长的第一光和第二光传播通过其中，使得第一光和第二光在传播期间通过非线性光学现象彼此相互作用，从而使光纤输出第一光或第二光调制由非线性光学现象或由非线性光学现象新产生的具有不同波长的第三光。

45. 发明申请

US20070053641A1 Optical fiber and optical device using the same 有权
标题翻译：光纤和光学器件使用相同
公开(公告)号：US20070053641A1
公开(公告)日：2007-03-08
申请号：US11516517
申请日：2006-09-07
申请人： Masaaki Hirano , Tetsuya Nakanishi , Toshiaki Okuno
发明人： Masaaki Hirano , Tetsuya Nakanishi , Toshiaki Okuno
IPC分类号： G02B6/02 , G02B6/028 , G02B6/036
CPC分类号： G02B6/02214 , G02B6/02028 , G02B6/02242 , G02B6/0228 , G02B6/02285 , G02B6/0281 , G02B6/03627 , G02B6/03644 , G02B6/0365 , G02B6/03666 , G02F1/3536 , G02F2201/02
摘要： There is disclosed an optical fiber wherein an absolute value of the fourth order dispersion β4 of fourth derivative β4 of propagation constant β with respect to angular frequency ω at a mean zero dispersion wavelength λ0 in an overall length is not more than 5×10−56 s4/m and wherein a fluctuation of a zero dispersion wavelength along a longitudinal direction is not more than ±0.6 nm.
摘要翻译：公开了一种光纤，其中传播常数β的第四导数β4的四阶色散β4的绝对值相对于平均值为0的角频率ω 在整个长度上的色散波长λ0 <0>不大于5×10 -6 / 4，其中零色散波长的波动沿着纵向方向不大于±0.6nm。

46. 发明申请

US20060245705A1 Method of making optical fiber and optical fiber made by the method 有权
标题翻译：通过该方法制造光纤和光纤的方法
公开(公告)号：US20060245705A1
公开(公告)日：2006-11-02
申请号：US11398769
申请日：2006-04-06
申请人： Masaaki Hirano , Kazumasa Makihara , Tetsuya Nakanishi
发明人： Masaaki Hirano , Kazumasa Makihara , Tetsuya Nakanishi
IPC分类号： G02B6/02
CPC分类号： G02B6/03666 , C03B37/01228 , C03B37/01245 , C03B37/01466 , C03B37/01861 , G02B6/02028 , G02B6/02261 , G02B6/03611 , G02B6/03627 , G02B6/03633 , G02B6/03644
摘要： Provided is a method of manufacturing an optical fiber preform from which an optical fiber having the desired characteristics can easily be produced. The method comprises the steps of: (1) preparing an intermediate preform for manufacturing an optical fiber preform; (2) measuring a refractive index profile in a radial direction at each of a plurality of positions in the longitudinal direction of the intermediate preform; (3) demarcating the outer diameter shape of the intermediate preform based on the result of the step of measuring the refractive index profile so that an optical fiber preform can be manufactured such that an optical fiber having the desired characteristics may be produced from the optical fiber preform; (4) elongating the outer periphery of the intermediate preform so that the outer diameter shape may be formed as demarcated in the step of demarcating the outer diameter shape; and (5) drawing, so as to have a substantially constant outer diameter, the intermediate preform that has been subjected to the grinding step.
摘要翻译：提供一种可以容易地制造具有所需特性的光纤的光纤预制棒的制造方法。该方法包括以下步骤：（1）制备用于制造光纤预制棒的中间预型件; （2）在中间预制件的纵向方向上的多个位置的每一个处测量径向方向上的折射率分布; （3）基于测量折射率分布的步骤的结果来划定中间预成型件的外径形状，使得可以制造光纤预制件，使得可以从光纤产生具有期望特性的光纤预制件（4）使中间预制件的外周伸长，使外径形状可以在划定外径形状的步骤中形成为划线; 和（5）拉伸，以具有基本上恒定的外径，已经经过研磨步骤的中间预成型件。

47. 发明授权

US08676014B2 Optical fiber and method of manufacturing optical fiber 有权
标题翻译：光纤及其制造方法
公开(公告)号：US08676014B2
公开(公告)日：2014-03-18
申请号：US12903798
申请日：2010-10-13
申请人： Tetsuya Nakanishi , Masaaki Hirano , Tetsuya Haruna , Maki Ikechi
发明人： Tetsuya Nakanishi , Masaaki Hirano , Tetsuya Haruna , Maki Ikechi
IPC分类号： G02B6/02
CPC分类号： C03B37/02727 , C03B2203/19 , C03B2203/222 , G02B6/02 , G02B6/02366 , G02B6/03627 , G02B6/0365 , G02B6/03694
摘要： An optical fiber having excellent strength that can be manufactured at low cost, as well as a method for making such optical fiber, is provided. An optical fiber 1 is a silica-based optical fiber comprising a core 11, an optical cladding 12 surrounding the core 11, and a jacketing region 13 surrounding the optical cladding 12 and having a uniform composition throughout from the internal circumference to the outer circumference. A compressive strained layer having a residual compressive stress is provided at the outermost circumference of the jacketing region 13.
摘要翻译：提供了具有可以低成本制造的优异强度的光纤以及制造这种光纤的方法。光纤1是包括芯11，围绕芯11的光学包层12和围绕光学包层12并且具有从内周到外周均匀组成的护套区域13的二氧化硅基光纤。在护套区域13的最外周设有具有残余压应力的压应变层。

48. 发明申请

US20070175242A1 Method and device for producing optical fiber matrix 审中-公开
标题翻译：制造光纤矩阵的方法和装置
公开(公告)号：US20070175242A1
公开(公告)日：2007-08-02
申请号：US10590278
申请日：2005-02-23
申请人： Masaaki Hirano , Tetsuya Nakanishi , Takashi Sasaki , Taiichiro Yamashita
发明人： Masaaki Hirano , Tetsuya Nakanishi , Takashi Sasaki , Taiichiro Yamashita
IPC分类号： C03B37/07 , C03B37/018 , C03C25/00
CPC分类号： C03B37/01861 , C03B37/01807 , C03B37/01846 , Y02P40/57
摘要： A method and apparatus capable of suppressing fluctuation in shrinkage of a silica glass pipe such that an optical fiber preform uniform in the longitudinal direction can be produced are provided. In the step of depositing a glass layer in the silica glass pipe, at least the amount of the exhaust gas or buffering gas is feedback-controlled, and at least other one of them is pattern-controlled according to a flow rate pattern corresponding to heating positions on the silica glass pipe. The apparatus includes two or more in total of an exhaust portion and a buffering gas inlet portion, a heat source, a position detecting means for detecting a heating position, a first control means for controlling at least the amount of the exhaust gas or buffering gas according a flow rate pattern corresponding to heating positions, and second control means for feedback-controlling at least other one of them.
摘要翻译：提供了能够抑制石英玻璃管收缩波动的方法和装置，使得可以制造沿长度方向均匀的光纤预制件。在石英玻璃管中沉积玻璃层的步骤中，至少排气量或缓冲气体的量被反馈控制，并且至少其中之一根据对应于加热的流量模式进行图案化控制石英玻璃管上的位置。该装置总共包括两个或更多个排气部分和缓冲气体入口部分，热源，用于检测加热位置的位置检测装置，用于至少控制排气量或缓冲气体量的第一控制装置根据对应于加热位置的流量模式，以及第二控制装置，用于对至少其中之一进行反馈控制。

49. 发明授权

US07233727B2 Optical fiber and optical device using the same 有权
公开(公告)号：US07233727B2
公开(公告)日：2007-06-19
申请号：US11483979
申请日：2006-07-11
申请人： Masaaki Hirano , Tetsuya Nakanishi , Toshiaki Okuno
发明人： Masaaki Hirano , Tetsuya Nakanishi , Toshiaki Okuno
IPC分类号： G02B6/02 , G02B6/36 , H04J14/02 , H04B10/12
CPC分类号： G02B6/03666 , G02B6/02028 , G02B6/02242 , G02B6/02257 , G02B6/02271 , G02B6/0228 , G02B6/0281 , G02B6/03627 , G02B6/03644 , G02F1/365 , G02F2001/3528
摘要： This invention relates to an optical fiber and others having a structure for efficiently generating SC light while realizing high nonlinearity over a wide band. The optical fiber has at least a center core region, and an outside cladding region having a refractive index lower than that of the center core region and provided on an outer periphery of the center core region. The optical fiber has, as characteristics to light of a wavelength λ1 in a wavelength range of 1520 nm to 1620 nm, a chromatic dispersion of −2 ps/nm/km to +2 ps/nm/km, a dispersion slope of −0.009 ps/nm2/km to +0.009 ps/nm2/km, and a fourth-order dispersion of −1.8×10−4 ps/nm3/km to +1.8×10−4 ps/nm3/km.

50. 发明授权

US09097834B2 Optical fiber and optical fiber preform 有权
标题翻译：光纤和光纤预制棒
公开(公告)号：US09097834B2
公开(公告)日：2015-08-04
申请号：US13441978
申请日：2012-04-09
申请人： Masaaki Hirano , Tetsuya Haruna , Yoshiaki Tamura
发明人： Masaaki Hirano , Tetsuya Haruna , Yoshiaki Tamura
IPC分类号： G02B6/02 , C03B37/012 , C03B37/014 , C03B37/018 , C03B37/027 , C03C13/04 , G02B6/036
CPC分类号： G02B6/03644 , C03B37/01211 , C03B37/01228 , C03B37/0124 , C03B37/014 , C03B37/01807 , C03B37/01861 , C03B37/01869 , C03B37/027 , C03B2201/12 , C03B2201/20 , C03B2201/50 , C03B2203/22 , C03C13/045 , G02B6/02 , G02B6/02042 , G02B6/03605 , G02B6/03611 , G02B6/03627 , G02B6/03633 , G02B6/0365
摘要： An optical fiber preform has a core portion having a first core portion including a central axis, a second core portion disposed around the first core portion, and a third core portion disposed around the second core portion. The first core portion contains 10 atomic ppm or more of an alkali metal and 10 to 600 atomic ppm of chlorine, the second core portion contains 10 atomic ppm or less of the alkali metal and 10 to 600 atomic ppm of chlorine, and the third core portion contains 10 atomic ppm or less of the alkali metal and 2,000 atomic ppm or more of chlorine. An optical fiber has a core region doped with an alkali metal and chlorine, wherein the minimum concentration of chlorine in the core region is 1,000 atomic ppm or more, and the average concentration of the alkali metal therein is 0.2 atomic ppm or more.
摘要翻译：光纤预制件具有芯部，该芯部具有包括中心轴的第一芯部，围绕第一芯部设置的第二芯部，以及设置在第二芯部周围的第三芯部。第一芯部包含10原子ppm以上的碱金属和10〜600原子ppm的氯，第二核部分含有10原子ppm以下的碱金属和10〜600原子ppm的氯，第三核部分含有10原子ppm以下的碱金属和2,000原子ppm以上的氯。光纤具有掺杂有碱金属和氯的芯区域，其中芯区域中的氯的最小浓度为1,000原子ppm以上，碱金属的平均浓度为0.2原子ppm以上。

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