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    Preform and method for manufacturing same
    1.
    发明申请
    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.

    APPARATUS FOR FABRICATING SOOT PREFORM FOR OPTICAL FIBER
    5.
    发明申请
    APPARATUS FOR FABRICATING SOOT PREFORM FOR OPTICAL FIBER 有权
    用于制造光纤的预制件的装置

    公开(公告)号：US20050210925A1

    公开(公告)日：2005-09-29

    申请号：US10698657

    申请日：2003-10-31

    申请人： Dai Inoue ,  Go Ogino ,  Tetsuya Otosaka ,  Tadakatsu Shimada ,  Hideo Hirasawa

    发明人： Dai Inoue ,  Go Ogino ,  Tetsuya Otosaka ,  Tadakatsu Shimada ,  Hideo Hirasawa

    IPC分类号： G02B6/00 ,  C03B37/014 ,  C03B37/018

    CPC分类号： C03B37/01406 ,  C03B2207/54

    摘要： An apparatus for fabricating a soot preform for an optical fiber. The soot preform is fabricated by depositing glass particles on a starting rod capable of being rotated and pulled up. The apparatus comprises elements as follows. A reaction chamber is used for depositing the glass particles on the starting rod. An upper room is located above the reaction chamber for receiving the soot preform formed in the upper portion of the reaction chamber. At least one core burner is installed in the reaction chamber. A gas-supplying inlet is located in the top part of the sidewall of the reaction chamber closest to burner(s), and a gas-exhausting outlet is located in the top part of another sidewall opposite to the gas-supplying inlet. In addition, at least one cladding burner is installed in the reaction chamber. Thus, the exhausting efficiency for the stray glass particles is increased and the bubbles and impurities in the resulting preform are reduced such that the optical property in the lengthwise direction is stable.

    摘要翻译： 一种用于制造用于光纤的烟灰预制件的设备。 烟炱预制件通过将玻璃颗粒沉积在能够旋转和拉起的起始杆上来制造。 该装置包括以下元件。 反应室用于将玻璃颗粒沉积在起始杆上。 上部房间位于反应室上方，用于接收形成在反应室上部的烟灰预制件。 至少一个核燃烧器安装在反应室中。 气体供给入口位于最接近燃烧器的反应室的侧壁的顶部，并且排气出口位于与气体供应入口相对的另一个侧壁的顶部。 此外，至少一个包层燃烧器安装在反应室中。 因此，杂散玻璃颗粒的排气效率增加，并且所得预成型体中的气泡和杂质减少，使得长度方向的光学性质稳定。

    Optical fiber processing apparatus an process method
    6.
    发明申请
    Optical fiber processing apparatus an process method 审中-公开
    光纤加工装置的加工方法

    公开(公告)号：US20060179890A1

    公开(公告)日：2006-08-17

    申请号：US11326352

    申请日：2006-01-06

    申请人： Dai Inoue ,  Tetsuya Otosaka

    发明人： Dai Inoue ,  Tetsuya Otosaka

    IPC分类号： C03B32/00 ,  C03B37/075

    CPC分类号： C03C25/607 ,  C03B2201/22 ,  C03C13/047

    摘要： There is provide an optical fiber processing apparatus and a process method capable of shortening time required for replacing an atmosphere in a treatment container with inert gas and filling with deuterium and of restraining an amount used of expensive deuterium. An optical fiber processing apparatus includes a plurality of containers 1 for processing optical fiber that are spatially coupled by piping, each treatment container 1 including a treatment chamber that can be sealed and accommodate one or more bobbins 4 on which fiber to be processed is wound, in which the treatment chamber is supplied with treatment gas, and the optical fiber is processed by the gas. The treatment gas is deuterium or gas including the deuterium.

    摘要翻译： 提供了一种能够缩短用惰性气体替换处理容器中的气氛并填充氘所需的时间以及限制昂贵的氘使用量的光纤加工装置和方法。 一种光纤加工设备包括多个用于处理通过管道空间耦合的光纤的容器1，每个处理容器1包括一个处理室，该处理室可被密封并容纳一个或多个卷绕有待处理纤维的线轴4， 其中处理室被供给处理气体，并且光纤被气体处理。 处理气体是氘气或包括氘气体。

    Apparatus for fabricating soot preform for optical fiber
    7.
    发明授权
    Apparatus for fabricating soot preform for optical fiber 有权

    公开(公告)号：US07082791B2

    公开(公告)日：2006-08-01

    申请号：US10698657

    申请日：2003-10-31

    申请人： Dai Inoue ,  Go Ogino ,  Tetsuya Otosaka ,  Tadakatsu Shimada ,  Hideo Hirasawa

    发明人： Dai Inoue ,  Go Ogino ,  Tetsuya Otosaka ,  Tadakatsu Shimada ,  Hideo Hirasawa

    IPC分类号： C03B37/018

    CPC分类号： C03B37/01406 ,  C03B2207/54

    摘要： An apparatus for fabricating a soot preform for an optical fiber. The soot preform is fabricated by depositing glass particles on a starting rod capable of being rotated and pulled up. The apparatus comprises elements as follows. A reaction chamber is used for depositing the glass particles on the starting rod. An upper room is located above the reaction chamber for receiving the soot preform formed in the upper portion of the reaction chamber. At least one core burner is installed in the reaction chamber. A gas-supplying inlet is located in the top part of the sidewall of the reaction chamber closest to burner(s), and a gas-exhausting outlet is located in the top part of another sidewall opposite to the gas-supplying inlet. In addition, at least one cladding burner is installed in the reaction chamber. Thus, the exhausting efficiency for the stray glass particles is increased and the bubbles and impurities in the resulting preform are reduced such that the optical property in the lengthwise direction is stable.

    Packaging method of optical fiber and optical fiber
    8.
    发明申请
    Packaging method of optical fiber and optical fiber 审中-公开
    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。

    Optical fiber
    9.
    发明授权
    Optical fiber 有权
    光纤

    公开(公告)号：US07574087B2

    公开(公告)日：2009-08-11

    申请号：US11790833

    申请日：2007-04-27

    申请人： Dai Inoue ,  Hiroshi Oyamada ,  Yuichi Morishita

    发明人： Dai Inoue ,  Hiroshi Oyamada ,  Yuichi Morishita

    IPC分类号： G02B6/02

    CPC分类号： G02B6/03611 ,  G02B6/02004 ,  G02B6/02019 ,  G02B6/0281

    摘要： An optical fiber includes a clad portion and a core portion surrounded by the clad portion. Here, the clad portion is formed by substantially pure quartz, and the core portion has a higher refractive index than the clad portion. The optical fiber is characterized in that a relative refractive index difference of a center of the core portion falls within a range from 0.15% to 0.30%, and a maximum relative refractive index difference of the core portion falls within a range from 0.4% to 0.6%. Here, it is preferable that an average relative refractive index difference of the core portion falls within a range from 0.30% to 0.40%. Here, a mode field diameter of the optical fiber falls within a range from 8.6 μm to 9.5 μm at 1310 nm, and a cable cutoff wavelength of the optical fiber is equal to or lower than 1260 nm. Note that, after the optical fiber is subjected to hydrogen aging, a loss of the optical fiber is preferably equal to or lower than 0.4 dB/km at 1383 nm.

    摘要翻译： 光纤包括包层部分和由包层部分围绕的芯部分。 这里，包层部分由基本上纯的石英形成，并且芯部具有比包层部更高的折射率。 光纤的特征在于芯部的中心的相对折射率差在0.15％〜0.30％的范围内，芯部的最大相对折射率差落入0.4〜0.6的范围内 ％。 这里，芯部的平均相对折射率差优选在0.30〜0.40％的范围内。 这里，光纤的模场直径在1310nm处在8.6μm〜9.5μm的范围内，光纤的电缆截止波长为1260nm以下。 注意，在光纤经受氢老化之后，在1383nm处光纤的损耗优选等于或低于0.4dB / km。

    Optical fiber
    10.
    发明申请
    Optical fiber 有权
    光纤

    公开(公告)号：US20070196062A1

    公开(公告)日：2007-08-23

    申请号：US11790833

    申请日：2007-04-27

    申请人： Dai Inoue ,  Hiroshi Oyamada ,  Yuichi Morishita

    发明人： Dai Inoue ,  Hiroshi Oyamada ,  Yuichi Morishita

    IPC分类号： G02B6/02

    CPC分类号： G02B6/03611 ,  G02B6/02004 ,  G02B6/02019 ,  G02B6/0281

    摘要： An optical fiber includes a clad portion and a core portion surrounded by the clad portion. Here, the clad portion is formed by substantially pure quartz, and the core portion has a higher refractive index than the clad portion. The optical fiber is characterized in that a relative refractive index difference of a center of the core portion falls within a range from 0.15% to 0.30%, and a maximum relative refractive index difference of the core portion falls within a range from 0.4% to 0.6%. Here, it is preferable that an average relative refractive index difference of the core portion falls within a range from 0.30% to 0.40%. Here, a mode field diameter of the optical fiber falls within a range from 8.6 μm to 9.5 μm at 1310 nm, and a cable cutoff wavelength of the optical fiber is equal to or lower than 1260 nm. Note that, after the optical fiber is subjected to hydrogen aging, a loss of the optical fiber is preferably equal to or lower than 0.4 dB/km at 1383 nm.

    摘要翻译： 光纤包括包层部分和由包层部分围绕的芯部分。 这里，包层部分由基本上纯的石英形成，并且芯部具有比包层部更高的折射率。 光纤的特征在于芯部的中心的相对折射率差在0.15％〜0.30％的范围内，芯部的最大相对折射率差落入0.4〜0.6的范围内 ％。 这里，芯部的平均相对折射率差优选在0.30〜0.40％的范围内。 这里，光纤的模场直径在1310nm处在8.6μm〜9.5μm的范围内，光纤的电缆截止波长为1260nm以下。 注意，在光纤经受氢老化之后，在1383nm处光纤的损耗优选等于或低于0.4dB / km。