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1. 发明申请

US20040136668A1 Optical fiber for WDM system and manufacturing method thereof 有权
标题翻译： WDM系统用光纤及其制造方法
公开(公告)号：US20040136668A1
公开(公告)日：2004-07-15
申请号：US10608031
申请日：2003-06-30
申请人： The Furukawa Electric Co., Ltd.
发明人： Fumio Takahashi , Hideya Moridaira , Masahide Kuwabara , Yoshinori Ishida , Satoru Ise , Masato Oku
IPC分类号： G02B006/02
CPC分类号： G02B6/02009 , C03B37/12 , C03C25/607 , G02B6/02214 , G02B6/03644 , G02B6/03694 , Y02P40/57
摘要： An optical fiber having a length of 1 km or more with average transmission loss in a wavelength band of 1383 nm being less than average transmission loss in a wavelength band of 1310 nm, wherein a maximum value of any 1 km section loss in the wavelength band of 1383 nm does not exceed the average transmission loss by 0.03 dB/km or more.
摘要翻译：在1383nm的波长带中具有1km以上的平均传输损耗的长度的光纤比1310nm的波长带的平均传输损耗小，其中波长带中的任何1km的断面损耗的最大值 1383nm的平均传输损耗不超过0.03dB / km以上。

2. 发明申请

US20010009104A1 Electric furnace extension method and extension apparatus for optical fiber glass preform 有权
标题翻译：电炉延伸方法及光纤玻璃预制棒延伸装置
公开(公告)号：US20010009104A1
公开(公告)日：2001-07-26
申请号：US09778107
申请日：2001-02-07
申请人： THE FURUKAWA ELECTRIC CO., LTD.
发明人： Tetsuro Wada , Masahide Kuwabara , Yukio Komura
IPC分类号： C03B037/15 , G02B006/255
CPC分类号： C03B37/01486 , C03B37/0124 , Y02P40/57
摘要： An electric furnace extending method and apparatus for an optical fiber glass body alignment when connecting the extension use body and pulling member and making it possible to immediately start the extension after the fusing of the connection portion. A centering mechanism for centering the free end portion of the body and member on the furnace center side is provided between the furnace pipe of the electric furnace and grips of the extension use glass body and between the furnace pipe and the pulling member. The free end portion is centered by this centering mechanism, then the gripped sides of the body and member are fixed, the front ends of the two free end portions are abutted and fused and bonded at the highest temperature portion inside the electric furnace, then the highest temperature portion is moved to the extension portion of the glass body side and the extending of the glass body is commenced.
摘要翻译：一种电炉延伸方法和装置，用于在连接延伸使用体和牵引构件时使光纤玻璃体对准，并且使得可以在连接部分的熔合之后立即开始延伸。在电炉的炉管和延伸用玻璃体的夹具之间以及炉管和拉件之间设置有用于使炉体中心侧的主体和部件的自由端部对中的定心机构。自由端部由该定心机构居中，然后将主体和构件的夹持侧固定，两个自由端部的前端在电炉内部的最高温度部分抵接并熔接并粘合，最高温度部分移动到玻璃体侧的延伸部分并开始玻璃体的延伸。

3. 发明申请

US20040163421A1 Electric furnace extension method and extension apparatus for optical fiber glass preform 审中-公开
公开(公告)号：US20040163421A1
公开(公告)日：2004-08-26
申请号：US10787408
申请日：2004-02-27
申请人： THE FURUKAWA ELECTRIC CO., LTD
发明人： Tetsuro Wada , Masahide Kuwabara , Yukio Komura
IPC分类号： C03B037/07
CPC分类号： C03B37/01486 , C03B37/0124 , Y02P40/57
摘要： An electric furnace extending method and apparatus for an optical fiber glass body alignment when connecting the extension use body and pulling member and making it possible to immediately start the extension after the fusing of the connection portion. A centering mechanism for centering the free end portion of the body and member on the furnace center side is provided between the furnace pipe of the electric furnace and grips of the extension use glass body and between the furnace pipe and the pulling member. The free end portion is centered by this centering mechanism, then the gripped sides of the body and member are fixed, the front ends of the two free end portions are abutted and fused and bonded at the highest temperature portion inside the electric furnace, then the highest temperature portion is moved to the extension portion of the glass body side and the extending of the glass body is commenced.

4. 发明申请

US20020057879A1 Optical fiber preform 有权
标题翻译：光纤预制棒
公开(公告)号：US20020057879A1
公开(公告)日：2002-05-16
申请号：US09949732
申请日：2001-09-12
申请人： THE FURUKAWA ELECTRIC CO., LTD.
发明人： Yukio Koumura , Masahide Kuwabara , Kazuto Hirabayashi
IPC分类号： G02B006/02
CPC分类号： C03B37/01493 , C03B37/01205 , C03B2207/70 , Y02P40/57
摘要： An optical fiber preform is a material used for fabricating optical fibers. The optical fiber preform has a target rod which will be the core for optical fibers and a glass layer formed around the outside thereof. A mass W (kg) of the optical fiber preform and a diameter D (cm) of the target rod satisfy a relational expression 0.4null(W)1/2
摘要翻译：光纤预制件是用于制造光纤的材料。光纤预制棒具有作为光纤的芯的目标棒和在其外侧形成的玻璃层。光纤预制棒的质量W（kg）和目标棒的直径D（cm）满足关系式0.4（W）1/2

5. 发明申请

US20010023598A1 Method of heating and processing an end of an optical fiber preform and apparatus for heating and processing an end of an optical fiber preform 有权
标题翻译：加热和加工光纤预制件的端部的方法以及用于加热和加工光纤预制件端部的装置
公开(公告)号：US20010023598A1
公开(公告)日：2001-09-27
申请号：US09782152
申请日：2001-02-14
申请人： The Furukawa Electric Co., Ltd.
发明人： Yukio Kohmura , Masahide Kuwabara , Kiyoshi Arima , Yasuhiro Naka , Shinpei Todo
IPC分类号： C03B037/07 , C03B037/16
CPC分类号： C03B37/01251 , C03B2205/47
摘要： An end heating and processing method of an optical fiber preform. In this method, an optical fiber preform is processed by heating and melting an end of a vitrified optical fiber preform including a core portion and a cladding portion formed on an outer circumference thereof to process the end having a shape for drawing as an optical fiber.
摘要翻译：光纤预制件的端部加热和加工方法。在该方法中，通过对形成在其外周上的芯部和包层部的玻璃化的光纤预制件的端部进行加热熔融来加工和熔化光纤预制体，以处理具有作为光纤的拉伸形状的端部。

6. 发明申请

US20020189298A1 Apparatus for manufacturing an optical fiber soot, and method for manufacturing an optical fiber soot using the same 审中-公开
标题翻译：用于制造光纤烟灰的设备，以及使用其制造光纤烟灰的方法
公开(公告)号：US20020189298A1
公开(公告)日：2002-12-19
申请号：US09986022
申请日：2001-11-07
申请人： The Furukawa Electric Co, Ltd.
发明人： Kiyoshi Arima , Masahide Kuwabara , Sadayuki Toda
IPC分类号： C03B037/018
CPC分类号： F23D14/22 , C03B37/0148 , C03B2207/54 , F23C2900/9901 , F23D14/56 , F23D14/84 , Y02P40/57
摘要： An apparatus for manufacturing an optical fiber soot according to a VAD method, in which a cross-section shape of a combustion nozzle of a side burner for heating a core portion is rectangular. A method for manufacturing an optical fiber soot using the apparatus.
摘要翻译：根据VAD方法制造光纤烟灰的装置，其中用于加热芯部的侧面燃烧器的燃烧喷嘴的横截面形状是矩形的。一种使用该装置制造光纤烟灰的方法。

7. 发明申请

US20020162363A1 Apparatus for manufacturing an optical fiber soot, and method for manufacturing an optical fiber soot using thereof 有权
标题翻译：用于制造光纤烟灰的设备，以及使用其制造光纤烟灰的方法
公开(公告)号：US20020162363A1
公开(公告)日：2002-11-07
申请号：US09964623
申请日：2001-09-28
申请人： The Furukawa Electric Co., Ltd.
发明人： Hiroyuki Wada , Kiyoshi Arima , Masahide Kuwabara , Sadayuki Toda
IPC分类号： C03B037/018
CPC分类号： C03B37/0144 , C03B37/01406 , C03B37/0142 , C03B2207/46 , C03B2207/50 , Y02P40/57
摘要： An apparatus for manufacturing an optical fiber soot, which comprises a core partition having an opening portion at core burner side provided on a periphery of a core burner, in a reactor of the apparatus to be used in a conventional VAD method.
摘要翻译：一种用于制造光纤烟灰的装置，其包括在常规VAD方法中使用的装置的反应器中的具有在核心燃烧器的周围设置的核心燃烧器侧的开口部分的芯分隔件。

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