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21. 发明授权

US07787730B2 Optical fiber and broadband light source 有权
标题翻译：光纤和宽带光源
公开(公告)号：US07787730B2
公开(公告)日：2010-08-31
申请号：US11922783
申请日：2007-03-12
申请人： Masaaki Hirano , Tetsuya Nakanishi , Toshiaki Okuno
发明人： Masaaki Hirano , Tetsuya Nakanishi , Toshiaki Okuno
IPC分类号： G02B6/02
CPC分类号： G02B6/03627 , G02B6/02028 , G02B6/02242 , G02B6/02257 , G02B6/02271 , G02F1/3532 , G02F2001/3528
摘要： An optical fiber and a broadband light source that can generate SC light having a broader bandwidth. A broadband light source 1 is equipped with a seed light source 11 and an optical fiber 12. The seed light source 11 outputs light having a central wavelength in the wavelength range of 1500 nm to 1650 nm. The optical fiber 12 outputs supercontinuum light a result of input of the light output from the seed light source. The optical fiber 12, which has a zero dispersion wavelength in the wavelength range of 1300 nm to 1500 nm and an effective area of 12 μm2 or less at the central wavelength, outputs supercontinuum light having a wavelength bandwidth expanded to 1000 nm or more.
摘要翻译：可以产生具有更宽带宽的SC光的光纤和宽带光源。宽带光源1配备有种子光源11和光纤12.种子光源11输出在1500nm至1650nm的波长范围内的中心波长的光。光纤12输出来自种子光源的光输出的结果的超连续光。在中心波长处具有在1300nm至1500nm的波长范围内的零色散波长和12μm2或更小的有效面积的光纤12输出具有扩展至1000nm以上的波长带宽的超连续光。

22. 发明授权

US07486862B2 Optical fiber and manufacturing method thereof 有权
标题翻译：光纤及其制造方法
公开(公告)号：US07486862B2
公开(公告)日：2009-02-03
申请号：US10556946
申请日：2004-05-18
申请人： Yuichi Ohga , Masashi Onishi , Osamu Kasuu , Shuichiro Kato , Toru Adachi , Takashi Sasaki , Masaaki Hirano
发明人： Yuichi Ohga , Masashi Onishi , Osamu Kasuu , Shuichiro Kato , Toru Adachi , Takashi Sasaki , Masaaki Hirano
IPC分类号： G02B6/02 , C03B37/023
CPC分类号： C03B37/01228 , C03B37/01211 , C03B37/01231 , C03B37/01248 , C03B37/02754 , Y02P40/57
摘要： A core rod is inserted into a cladding pipe, moisture in a space between the core rod and the cladding pipe is removed, and an optical fiber is drawn while the space is connected to a dry-gas atmosphere and/or being decompressed and while the core rod and the cladding pipe are being unified with each other. Alternatively, the core rod is inserted into the cladding pipe, and an optical fiber is drawn from one end while moisture on the surface of the core rod and the internal surface of the cladding pipe is being removed. Accordingly, a high quality optical fiber is manufactured with good productivity.
摘要翻译：将芯棒插入包层管中，去除芯棒和包层管之间的空间中的水分，并且在空间连接到干燥气体气氛和/或减压的同时拉出光纤，同时芯棒和包层管彼此统一。或者，将芯棒插入到包层管中，并且从一端抽出光纤，同时除去芯棒的表面和包层管的内表面上的水分。因此，以高生产率制造高品质的光纤。

23. 发明授权

US07340137B2 Optical fiber and optical module 有权
标题翻译：光纤和光模块
公开(公告)号：US07340137B2
公开(公告)日：2008-03-04
申请号：US11586004
申请日：2006-10-25
申请人： Takemi Hasegawa , Masaaki Hirano
发明人： Takemi Hasegawa , Masaaki Hirano
IPC分类号： G02B6/02
CPC分类号： G02B6/03694 , G02B6/02028 , G02B6/0281 , H01S3/06716 , H01S3/302
摘要： An optical fiber capable of effectively suppressing stimulated Brillouin scattering, and an optical module including the fiber are provided. The fiber includes a core region, and a cladding region having a refractive index lower than that of the core region and an acoustic velocity higher than that of the core region. An effective area of the fiber is 5λ2 or less at at least one light wavelength λ. The ratio ΔA/ΔO of an acoustic relative refractive index ratio ΔA and an optical relative refractive index ratio ΔO is 25 or more. The optical module includes the optical fiber, a light source that outputs first light having a wavelength λ1, and a multiplexer that receives the first light and second light having a wavelength λ2 and that multiplexes and couples the first light and the second light to the optical fiber.
摘要翻译：提供能够有效地抑制受激布里渊散射的光纤，以及包括该光纤的光学模块。纤维包括芯区域和折射率低于核心区域的折射率的包层区域，并且声速比芯区域高。纤维的有效面积在至少一个光波长λ为5λ2以下。声学相对折射率比ΔA和光学相对折射率ΔA的比值ΔA为25以上。光学模块包括光纤，输出具有波长λ1的第一光的光源，以及接收第一光的多路复用器和具有波长λ2的第二光并且将第一光和第二光复用并耦合到光纤。

24. 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。

25. 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。

26. 发明申请

US20070147755A1 Optical fiber and optical module 有权
标题翻译：光纤和光模块
公开(公告)号：US20070147755A1
公开(公告)日：2007-06-28
申请号：US11586004
申请日：2006-10-25
申请人： Takemi Hasegawa , Masaaki Hirano
发明人： Takemi Hasegawa , Masaaki Hirano
IPC分类号： G02B6/02
CPC分类号： G02B6/03694 , G02B6/02028 , G02B6/0281 , H01S3/06716 , H01S3/302
摘要： An optical fiber capable of effectively suppressing stimulated Brillouin scattering, and an optical module including the fiber are provided. The fiber includes a core region, and a cladding region having a refractive index lower than that of the core region and an acoustic velocity higher than that of the core region. An effective area of the fiber is 5λ2 or less at at least one light wavelength λ. The ratio ΔA/ΔO of an acoustic relative refractive index ratio ΔA and an optical relative refractive index ratio ΔO is 25 or more. The optical module includes the optical fiber, a light source that outputs first light having a wavelength λ1, and a multiplexer that receives the first light and second light having a wavelength λ2 and that multiplexes and couples the first light and the second light to the optical fiber.
摘要翻译：提供能够有效地抑制受激布里渊散射的光纤，以及包括该光纤的光学模块。纤维包括芯区域和折射率低于核心区域的折射率的包层区域，并且声速比芯区域高。纤维的有效面积在至少一个光波长λ为5λ2以下。声学相对折射率比ΔΔA和光学相对折射率ΔA的比值ΔA/ΔA/ / SUB>为25以上。光学模块包括光纤，输出具有波长λ1的第一光的光源，以及接收第一光的多路复用器和具有波长λ2的第二光并且将第一光和第二光复用并耦合到光纤。

27. 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。

28. 发明授权

US07068901B2 Optical fiber preform producing method, optical fiber production method, and optical fiber 失效
标题翻译：光纤预制棒生产方法，光纤生产方法和光纤
公开(公告)号：US07068901B2
公开(公告)日：2006-06-27
申请号：US10494278
申请日：2003-04-16
申请人： Masaaki Hirano , Eiji Yanada , Tomoyuki Yokokawa , Takashi Sasaki
发明人： Masaaki Hirano , Eiji Yanada , Tomoyuki Yokokawa , Takashi Sasaki
IPC分类号： G02B6/22
CPC分类号： G02B6/03688 , C03B37/01211 , C03B37/0124 , C03B2203/22 , C03B2203/29 , C03B2203/36 , G02B6/02271 , G02B6/03644 , G02B6/03666 , Y02P40/57
摘要： An optical fiber preform comprises a central core portion having a maximal value Nc of refractive index in the center, and outside the central core portion, comprising at least a depressed portion having a minimal value Nd of refractive index, a ring portion having a maximal value Nr of refractive index and an outside cladding layer having a maximal value No of refractive index. The optical fiber preform satisfies a relation of Nc≧Nr>No>Nd among the values of refractive index. A method of the optical fiber preform comprises fabricating a glass rod by inserting a rod containing at least the central core portion into a pipe containing at least the depressed portion and integrating them, fabricating a glass pipe having the ring portion, and fabricating a vitreous body by integrating the glass rod and the glass pipe by collapsing after inserting the glass rod into the glass pipe.
摘要翻译：光纤预制件包括在中心具有折射率最大值Nc并且在中心芯部分外部的中心芯部分，至少包括具有最小折射率Nd的凹陷部分，具有最大值的环部分折射率Nr和折射率最大值No的外包层。光纤预制棒满足折射率值之间的Nc> = Nr> No> Nd的关系。光纤预制棒的方法包括通过将至少包含中心纤芯部分的棒插入到至少包含凹陷部分并将其集成的管中来制造玻璃棒，制造具有该环部分的玻璃管，以及制造玻璃体通过在将玻璃棒插入玻璃管中之后通过塌缩来集成玻璃棒和玻璃管。

29. 发明授权

US07062941B2 Manufacturing method of optical fiber preform 有权
标题翻译：光纤预制棒的制造方法
公开(公告)号：US07062941B2
公开(公告)日：2006-06-20
申请号：US10103786
申请日：2002-03-25
申请人： Masashi Onishi , Eiji Yanada , Masaaki Hirano , Hideyuki Ijiri
发明人： Masashi Onishi , Eiji Yanada , Masaaki Hirano , Hideyuki Ijiri
IPC分类号： C03B37/07
CPC分类号： C03B37/01228
摘要： A method for manufacturing an optical fiber preform that can produce an optical fiber having desired characteristics over the longer length thereof. A crude preform provided with a core region and a cladding region is prepared (Step S1), and at a plurality of positions in the longitudinal direction of the crude preform, a refractive index profile in the cross-section of the crude preform is measured (Step S2). Then, the shape of the cladding region is demarcated based on the shape of the profile (Step S3). Subsequently, the crude preform is ground based on the results of the demarcation (Step S4). Thus, an optical fiber preform that enables the manufacture of an optical fiber having target characteristics is manufactured.
摘要翻译：一种光纤预制棒的制造方法，该光纤预制棒可以在其较长的长度上产生具有所需特性的光纤。制备具有芯区域和包层区域的粗制预制件（步骤S1），并且在粗制预型件的纵向方向上的多个位置处，测量粗制预成型体的横截面中的折射率分布（步骤S2）。然后，基于轮廓的形状划定包层区域的形状（步骤S 3）。随后，基于划分的结果研磨粗制预成型件（步骤S4）。因此，制造能够制造具有目标特性的光纤的光纤预制棒。

30. 发明授权

US07045737B2 Glass-processing method and glass-processing apparatus for the method 有权
标题翻译：玻璃加工方法和玻璃加工装置的方法
公开(公告)号：US07045737B2
公开(公告)日：2006-05-16
申请号：US10780716
申请日：2004-02-19
申请人： Masashi Onishi , Masaaki Hirano , Tetsuya Nakanishi
发明人： Masashi Onishi , Masaaki Hirano , Tetsuya Nakanishi
IPC分类号： B23K9/00
CPC分类号： H05H1/30 , C03B23/043 , C03B23/207 , C03B29/02 , C03B37/0124 , C03B37/01815 , C03B37/01823 , Y02P40/57
摘要： A glass-processing method adjusts the range of the heating region according to the work piece and processing condition, and a glass-processing apparatus implements the method. The method incorporates the heating of a glass body with a thermal plasma torch comprising (a) a main body provided with a plurality of ports from which a gas issues and (b) a device for applying a high-frequency electric field to the gas fed into the main body. The method comprises the steps of (1) adjusting the plasma flame's size perpendicular to the center axis of the main body by controlling the flow rate of the gas fed into each port according to the size of the glass body, the processing condition, or both and (2) heating the glass body. The apparatus comprises (a) a thermal plasma torch for heating a glass body, comprising (a1) a main body provided with a plurality of ports from which a gas issues and (a2) a device for applying a high-frequency electric field to the gas fed into the main body and (b) a device for adjusting the flow rate of the gas fed into each port.
摘要翻译：玻璃加工方法根据工件和加工条件调节加热区域的范围，玻璃加工装置实施该方法。该方法包括用热等离子体焰炬加热玻璃体，其包括（a）主体，其设置有多个端口，气体从该端口发出，以及（b）用于将高频电场施加到气体馈送的装置进入主体。该方法包括以下步骤：（1）通过根据玻璃体的尺寸，加工条件或两者来控制进入每个端口的气体的流量来调节垂直于主体的中心轴的等离子体火焰的尺寸和（2）加热玻璃体。该装置包括：（a）用于加热玻璃体的热等离子体焰炬，包括（a1）设置有气体发生的多个端口的主体，以及（a2）用于将高频电场施加到送入主体的气体和（b）用于调节供给到每个端口的气体的流量的装置。

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