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1. 发明申请

US20050147367A1 Method for manufacturing base material for optical fiber, apparatus therefor, and base material manufactured by the same 审中-公开
标题翻译：光纤基材的制造方法及其制造方法以及由其制造的基材
公开(公告)号：US20050147367A1
公开(公告)日：2005-07-07
申请号：US10934473
申请日：2004-09-07
申请人： Tadakatsu Shimada , Dai Inoue , Hiroshi Oyamada , Kazuhisa Hatayama , Hiroshi Machida , Tetsuya Otosaka , Fumio Saitoh , Yasuhiro Nakashima , Takeshi Kamio , Masami Terashima , Isao Arisaka , Soichiro Kemmochi , Hideo Hirasawa
发明人： Tadakatsu Shimada , Dai Inoue , Hiroshi Oyamada , Kazuhisa Hatayama , Hiroshi Machida , Tetsuya Otosaka , Fumio Saitoh , Yasuhiro Nakashima , Takeshi Kamio , Masami Terashima , Isao Arisaka , Soichiro Kemmochi , Hideo Hirasawa
IPC分类号： C03B37/012 , C03B37/014 , C03C15/00 , C03C25/68 , G02B6/02
CPC分类号： C03B37/01228 , C03B37/01446 , C03B37/01466 , C03B37/01486 , C03C15/00 , C03C25/68
摘要： A method for manufacturing a base material for an optical fiber, includes steps of: holding a bar material by a support member; and adjusting to reduce a difference between an axis of the bar material and a rotational axis of the support member. Furthermore, an optical fiber base material grasping apparatus for holding a bar material having an axis, includes: a support member having a center axis, the support member being rotatable around the center axis; and an adjusting mechanism for reducing a difference between the axis of the bar material and the central axis of the support member.
摘要翻译：一种制造光纤用基材的方法，包括以下步骤：通过支撑部件保持棒材; 并且调节以减小所述条形材料的轴线和所述支撑构件的旋转轴线之间的差异。此外，用于保持具有轴线的棒材的光纤基材抓持装置包括：具有中心轴线的支撑构件，所述支撑构件能够围绕中心轴线旋转; 以及用于减小棒材的轴线与支撑构件的中心轴线之间的差异的调节机构。

2. 发明授权

US07752869B2 Optical fiber preform, method for manufacturing thereof, and optical fiber obtained by drawing thereof 失效
标题翻译：光纤预制件，其制造方法以及通过其制造得到的光纤
公开(公告)号：US07752869B2
公开(公告)日：2010-07-13
申请号：US11133193
申请日：2005-05-20
申请人： Tetsuya Otosaka , Dai Inoue , Hiroshi Oyamada , Jun Abe , Hideo Hirasawa
发明人： Tetsuya Otosaka , Dai Inoue , Hiroshi Oyamada , Jun Abe , Hideo Hirasawa
IPC分类号： C03B37/018
CPC分类号： C03C13/045 , C03B37/01211 , C03B37/01291 , C03B37/01446 , C03B2201/12 , C03B2201/20 , C03B2201/28 , C03B2201/31 , C03B2203/22 , C03B2203/23 , G02B6/03694 , Y02P40/57
摘要： A method for manufacturing a preform having a core and a multilayer clad, includes covering a circumference of a rod including at least the core and an inner clad layer with a first tube including at least a high viscosity clad layer, and unifying the rod and the first tube by heating and contracting the first tube.
摘要翻译：一种制造具有芯和多层包层的预成型体的方法，包括至少包括所述芯和内包层的至少包括高粘度覆层的第一管覆盖至少包含芯的圆周的周边，并将所述棒和第一管通过加热和收缩第一管。

3. 发明申请

US20050229639A1 Optical fiber preform, method for manufacturing thereof, and optical fiber obtained by drawing thereof 失效
标题翻译：光纤预制件，其制造方法以及通过其制造得到的光纤
公开(公告)号：US20050229639A1
公开(公告)日：2005-10-20
申请号：US11133193
申请日：2005-05-20
申请人： Tetsuya Otosaka , Dai Inoue , Hiroshi Oyamada , Jun Abe , Hideo Hirasawa
发明人： Tetsuya Otosaka , Dai Inoue , Hiroshi Oyamada , Jun Abe , Hideo Hirasawa
IPC分类号： G02B6/00 , C03B37/012 , C03B37/014 , C03B37/018 , C03C13/04 , G02B6/02 , C03B37/075
CPC分类号： C03C13/045 , C03B37/01211 , C03B37/01291 , C03B37/01446 , C03B2201/12 , C03B2201/20 , C03B2201/28 , C03B2201/31 , C03B2203/22 , C03B2203/23 , G02B6/03694 , Y02P40/57
摘要： Even if an optical fiber obtained by drawing a preform is exposed to hydrogen atmosphere, an OH peak in the optical fiber at wavelength of about 1385 nm hardly rises regardless of the condition of drawing.
摘要翻译：即使通过拉伸预成型体获得的光纤暴露于氢气氛中，波长约1385nm的光纤中的OH峰也不会随着拉伸条件而上升。

4. 发明申请

US20060191296A1 Preform and method for manufacturing same 审中-公开
公开(公告)号：US20060191296A1
公开(公告)日：2006-08-31
申请号：US11403850
申请日：2006-04-14
申请人： Hiroshi Oyamada , Dai Inoue , Tetsuya Otosaka
发明人： Hiroshi Oyamada , Dai Inoue , Tetsuya Otosaka
IPC分类号： C03B37/01
CPC分类号： C03B37/0146 , C03B37/01466 , C03B37/0148
摘要： In respect of a method for manufacturing a preform of an optical fiber, the method comprises the steps of forming a porous glass preform by accumulating glass particles, preparing a container made of a quartz glass, which is formed by heating the quartz glass with an electric furnace, providing a dehydration gas and an inert gas to the container, heating the container to which dehydration gas and inert gas is provided and dehydrating and sintering the porous glass preform by inserting the porous glass preform into the container, which is heated.

5. 发明申请

US20120057834A1 Optical Fiber, Optical Fiber Preform and Method of Fabricating Same 审中-公开
标题翻译：光纤，光纤预制件及其制造方法
公开(公告)号：US20120057834A1
公开(公告)日：2012-03-08
申请号：US13226110
申请日：2011-09-06
申请人： Hiroshi Oyamada , Tetsuya Otosaka
发明人： Hiroshi Oyamada , Tetsuya Otosaka
IPC分类号： G02B6/036
CPC分类号： G02B6/028 , C03B37/01413 , C03B2201/12 , C03B2203/23 , G02B6/0365
摘要： An optical fiber capable of suppressing an increase of a transmission loss after exposure of the optical fiber to hydrogen or deuterium is provided. The optical fiber has a core region, an inner cladding region surrounding the core region, a trench region surrounding the inner cladding region, an outer cladding region surrounding the trench region, and a refractive index varying region arranged between the inner cladding region and the trench region, the refractive index varying region having a refractive index gradually increasing from the trench region to the inner cladding region.
摘要翻译：提供了一种能够抑制光纤暴露于氢或氘之后的传输损失增加的光纤。光纤具有芯区域，围绕芯区域的内包层区域，围绕内包层区域的沟槽区域，围绕沟槽区域的外包层区域和布置在内包层区域和沟槽之间的折射率变化区域区域，折射率变化区域具有从沟槽区域到内包层区域逐渐增加的折射率。

6. 发明授权

US07595866B2 Method for measuring non-circularity at core portion of optical fiber parent material 有权
标题翻译：测量光纤母材核心部分非圆度的方法
公开(公告)号：US07595866B2
公开(公告)日：2009-09-29
申请号：US11892276
申请日：2007-08-21
申请人： Yuuji Tobisaka , Tetsuya Otosaka , Hiroshi Oyamada
发明人： Yuuji Tobisaka , Tetsuya Otosaka , Hiroshi Oyamada
IPC分类号： G01N21/00
CPC分类号： G01B11/105 , G02B6/02285
摘要： A method for measuring non-circularity of a core portion of an optical fiber base material includes a distribution measuring step of (i) moving the optical fiber base material in a direction parallel to a central axis of the core portion while light is irradiated, in a direction perpendicular to the central axis, to the optical fiber base material which is immersed in the matching oil, and (ii) recording a variation in a width of a portion of the irradiated light which transmits through the core portion in association with a moved distance of the optical fiber base material, thereby measuring a distribution of relative values of an outer diameter of the core portion in terms of a longitudinal direction of the optical fiber base material, a distribution storing step of performing the distribution measuring step each time the optical fiber base material is rotated about the central axis by a predetermined angle, thereby recording a plurality of distributions of the relative values of the outer diameter of the core portion each of which is associated with the predetermined angle, and a non-circularity calculating step of calculating a plurality of values, in terms of the longitudinal direction of the optical fiber base material, each indicating non-circularity of the core portion, based on the plurality of distributions of the relative values of the outer diameter stored in the distribution storing step.
摘要翻译：用于测量光纤基材的芯部的非圆度的方法包括：分布测量步骤，（i）在照射光的同时使光纤基材在与芯部的中心轴平行的方向上移动，垂直于中心轴的方向连接到浸入匹配油中的光纤基材，和（ii）记录透过核心部分的照射光的一部分的宽度变化与移动的光纤基材的距离，从而测量芯部的外径与光纤基材的长度方向的相对值的分布，分配存储步骤，每当光学基材纤维基材围绕中心轴旋转预定角度，从而记录多个相对值的分布芯部的外径与预定角度相关联的非圆度计算步骤，在光纤基材的长度方向上计算多个值，其中，基于存储在分配存储步骤中的外径的相对值的多个分布。

7. 发明申请

US20080068594A1 Method for measuring non-circularity at core portion of optical fiber parent material 有权
标题翻译：测量光纤母材核心部分非圆度的方法
公开(公告)号：US20080068594A1
公开(公告)日：2008-03-20
申请号：US11892276
申请日：2007-08-21
申请人： Yuuji Tobisaka , Tetsuya Otosaka , Hiroshi Oyamada
发明人： Yuuji Tobisaka , Tetsuya Otosaka , Hiroshi Oyamada
IPC分类号： G01B11/10
CPC分类号： G01B11/105 , G02B6/02285
摘要： A method for measuring non-circularity of a core portion of an optical fiber base material includes a distribution measuring step of (i) moving the optical fiber base material in a direction parallel to a central axis of the core portion while light is irradiated, in a direction perpendicular to the central axis, to the optical fiber base material which is immersed in the matching oil, and (ii) recording a variation in a width of a portion of the irradiated light which transmits through the core portion in association with a moved distance of the optical fiber base material, thereby measuring a distribution of relative values of an outer diameter of the core portion in terms of a longitudinal direction of the optical fiber base material, a distribution storing step of performing the distribution measuring step each time the optical fiber base material is rotated about the central axis by a predetermined angle, thereby recording a plurality of distributions of the relative values of the outer diameter of the core portion each of which is associated with the predetermined angle, and a non-circularity calculating step of calculating a plurality of values, in terms of the longitudinal direction of the optical fiber base material, each indicating non-circularity of the core portion, based on the plurality of distributions of the relative values of the outer diameter stored in the distribution storing step.
摘要翻译：用于测量光纤基材的芯部的非圆度的方法包括：分布测量步骤，（i）在照射光的同时使光纤基材在与芯部的中心轴平行的方向上移动，垂直于中心轴的方向连接到浸入匹配油中的光纤基材，和（ii）记录透过核心部分的照射光的一部分的宽度变化与移动的光纤基材的距离，从而测量芯部的外径与光纤基材的长度方向的相对值的分布，分配存储步骤，每当光学基材纤维基材围绕中心轴旋转预定角度，从而记录多个相对值的分布芯部的外径与预定角度相关联的非圆度计算步骤，在光纤基材的长度方向上计算多个值，其中，基于存储在分配存储步骤中的外径的相对值的多个分布。

8. 发明授权

US5683486A Method of forming a fiber preform to minimize shifts of the zero-dispersion wavelength 失效
标题翻译：形成纤维预制件以使零色散波长的偏移最小化的方法
公开(公告)号：US5683486A
公开(公告)日：1997-11-04
申请号：US358529
申请日：1994-12-19
申请人： Hiroshi Oyamada , Go Ogino , Hideo Hirasawa
发明人： Hiroshi Oyamada , Go Ogino , Hideo Hirasawa
IPC分类号： C03B37/012 , C03B37/014 , C03B37/027
CPC分类号： C03B37/014 , C03B2203/22 , C03B2203/36 , C03B2207/70 , G02B6/02247
摘要： An improvement is proposed, in a method for the preparation of a step-index silica glass preform as a precursor of optical fibers by completing the cladding layer of the secondary preform by the outer deposition on and around a primary preform consisting of the center core and side core, to conduct the outer deposition for the cladding layer in such a way that the inequality .vertline.d.lambda..sub.0 /dk.vertline..ltoreq.500 nm is satisfied, in which k is the ratio of the diameter of the primary preform to the diameter of the secondary preform and .lambda..sub.0 is the zero-dispersion wavelength in nm of an optical fiber obtained by drawing the secondary preform, d.lambda..sub.0 /dk being the differential of a function held between .lambda..sub.0 and k determined beforehand from the distribution of the refractive index within the primary preform. When the outer deposition is performed in this way, a great improvement can be obtained in the uniformity of the zero-dispersion wavelength of the optical fiber prepared by drawing the preform.
摘要翻译：提出了一种改进方法，其中通过在由中心核心构成的初级预制件上和周围的外部沉积来完成二次预型体的包覆层来制备作为光纤前体的步进折射率石英玻璃预制件的方法，以及以使得不等式|dλ0 / dk |≤500nm满足下述方式对包覆层进行外部沉积，其中k是初级预制棒的直径与直径的比率次级预制件和λ0是通过拉制次级预制件获得的光纤的零色散波长（nm），dλ0 / dk是预先从折射率分布预先确定的λ0和k之间保持的函数的差分初级预制件内的折射率。当以这种方式进行外部沉积时，通过拉伸预制件制备的光纤的零色散波长的均匀性可以获得很大的改进。

9. 发明授权

US6145344A Method for the preparation of a porous silica glass preform for optical fibers 失效
标题翻译：制备光纤多孔石英玻璃预制件的方法
公开(公告)号：US6145344A
公开(公告)日：2000-11-14
申请号：US284902
申请日：1994-08-02
申请人： Hiroshi Oyamada , Hiroyuki Koide , Goh Ogino , Hideo Hirasawa
发明人： Hiroshi Oyamada , Hiroyuki Koide , Goh Ogino , Hideo Hirasawa
IPC分类号： C03B37/018 , C03B37/014 , G02B6/00 , G02B6/036
CPC分类号： G02B6/03633 , C03B37/0142 , G02B6/02042 , C03B2203/22 , C03B2203/34 , C03B2207/06 , C03B2207/50 , C03B2207/60 , C03B2207/64 , C03B2207/66 , G02B6/0281 , G02B6/0286
摘要： Proposed is an improvement in the VAD process for the preparation of a porous silica glass preform for double-core optical fibers by using three oxyhydrogen flame burners installed one above the other in a flame hydrolysis chamber in which a porous silica glass body consisting of the center core portion formed by the lowermost burner, side core portion formed by the middle burner and the cladding layer formed by the uppermost burner is gradually pulled up as it grows under rotation. Different from conventional procedures in which the extension of the nozzle axis of each of the burners intersects with the rotation axis of the growing body, the extension of the nozzle axis of the middle burner for the side core is displaced in a horizontal direction by a limited distance not to intersect nor to be in parallel with the rotation axis in the invention. By this means, an improvement is obtained in the uniformity of distribution of the refractive index in the side core which otherwise is remarkably disordered.
摘要翻译：提出了通过在火焰水解室中使用三个氢氧焰燃烧器一起制备用于双芯光纤的多孔石英玻璃预制件的VAD方法的改进，其中由中心组成的多孔石英玻璃体由最下面的燃烧器形成的芯部，由中间燃烧器形成的侧芯部和由最上面的燃烧器形成的包覆层随着其旋转而逐渐上升。与常规方法不同，其中每个燃烧器的喷嘴轴线的延伸与生长体的旋转轴线相交，用于侧芯的中间燃烧器的喷嘴轴线的延伸在水平方向上被限制在本发明中不相交或不与旋转轴平行的距离。通过这种方式，在侧核中折射率分布的均匀性得到改善，否则其显着无序。

10. 发明申请

US20070230890A1 Packaging method of optical fiber and optical fiber 审中-公开
标题翻译：光纤和光纤的封装方法
公开(公告)号：US20070230890A1
公开(公告)日：2007-10-04
申请号：US11639132
申请日：2006-12-15
申请人： Hiroshi Oyamada , Dai Inoue
发明人： Hiroshi Oyamada , Dai Inoue
IPC分类号： G02B6/00
CPC分类号： C03C25/64 , B65D81/2092 , C03C25/607 , G02B6/444 , G02B6/4457
摘要： There is provided a packaging method of an optical fiber capable of performing a heavy hydrogen treatment during packing and storing easily and at low cost without a conventional grand processing apparatus. The packaging method includes: receiving an optical fiber 1 wound on an optical fiber bobbin 5 within a packing material 2 having flexibility to seal an opening part, sealing up the packing material 2 after introducing heavy hydrogen, and performing a heavy hydrogen treatment on the optical fiber 1 in a mixed gas atmosphere containing heavy hydrogen and air during storing and transporting the optical fiber 1. At this time, concentration of heavy hydrogen within the packing material 2 just after enclosing heavy hydrogen is within a range of 0.5 ppm to 4%. The opening part 3 of the packing material 2 may be sealed with heat or an adhesive after receiving the optical fiber 1, or may be sealed with a zipper. Moreover, the introduction of heavy hydrogen may be performed from the remained opening part 3 after sealing the opening part as a part of the opening part remains, or may be performed from an opening part having a self-sealed check valve 6 provided in the packing material 2.
摘要翻译：提供了一种光纤的包装方法，其能够在没有传统的盛装处理装置的情况下容易地且低成本地进行包装和存储时进行重氢处理。该包装方法包括：在具有柔性密封开口部分的包装材料2内的光纤绕线筒5上接收光纤1，在引入重氢之后密封包装材料2，并在光学器件上进行重氢处理纤维1在储存和输送光纤1的过程中含有重氢和空气的混合气体气氛中。此时，刚刚封闭重氢后的包装材料2内的重氢浓度在0.5ppm至4％的范围内。包装材料2的开口部分3可以在接收光纤1之后用热或粘合剂密封，或者可以用拉链密封。另外，由于作为开口部的一部分残留的密封开口部之后，可以从保持开口部3进行重氢的引入，也可以由设置在包装中的具有自密封止回阀6的开口部进行材料2。

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