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11. 发明授权

US5217516A Method of making optical glass article 失效
标题翻译：制作光学玻璃制品的方法
公开(公告)号：US5217516A
公开(公告)日：1993-06-08
申请号：US677414
申请日：1991-03-29
申请人： Yoichi Ishiguro , Hiroo Kanamori , Akira Urano , Michihisa Kyoto
发明人： Yoichi Ishiguro , Hiroo Kanamori , Akira Urano , Michihisa Kyoto
IPC分类号： C03B37/014
CPC分类号： C03B37/01446 , C03B37/0146 , C03B2201/12 , C03B2203/22 , Y10S65/16
摘要： A refractive index profile in a glass article is easily controlled by heating a solid or hollow cylindrical glass soot preform in an atmosphere comprising a fluorine-containing compound under such conditions that a partial pressure of the fluorine-containing compound is changed as the heating proceeds so as to control a fluorine concentration in a radial direction of the optical glass article.
摘要翻译：玻璃制品中的折射率分布可以通过在包含含氟化合物的气氛中加热固体或中空的圆柱形玻璃烟炱预制件，使得随着加热进行而使含氟化合物的分压发生变化的条件以控制光学玻璃制品的径向氟浓度。

12. 发明授权

US5053068A High pressure fluorine method for producing preform for optical fiber 失效
标题翻译：用于生产光纤预制棒的高压氟法
公开(公告)号：US5053068A
公开(公告)日：1991-10-01
申请号：US526522
申请日：1990-05-21
申请人： Michihisa Kyoto , Akira Urano , Yoichi Ishiguro , Minoru Watanabe
发明人： Michihisa Kyoto , Akira Urano , Yoichi Ishiguro , Minoru Watanabe
IPC分类号： G02B6/00 , C03B37/014
CPC分类号： C03B37/0146 , C03B37/01453 , C03B2201/12 , Y10S65/16
摘要： A method for producing a glass preform for use in the fabrication of an optical fiber, including the steps of forming a glass soot preform from a glass-forming raw material and heating the soot preform to vitrify it, the soot preform being heated in an atmosphere comprising SiF.sub.4 under pressure higher than 1 atm. for a period of time sufficient to add fluorine, between the formation of the soot preform and the vitrification of it, fluorine being added at a high rate and in a large amount.
摘要翻译：一种用于制造用于制造光纤的玻璃预制棒的方法，包括以下步骤：从玻璃形成原料形成玻璃烟炱预制件并加热烟炱预制件使其玻璃化，烟炱预制件在气氛中加热包括在高于1atm的压力下的SiF 4。在足以添加氟的时间段之间，在形成烟炱预制品和玻璃化之间，氟以高速率和大量添加。

13. 发明授权

US5032079A Furnace for producing high purity quartz glass preform 失效
标题翻译：用于生产高纯度石英玻璃预制件的炉
公开(公告)号：US5032079A
公开(公告)日：1991-07-16
申请号：US459299
申请日：1989-12-29
申请人： Ichiro Tsuchiya , Shinji Ishikawa , Masahide Saitoh , Yoichi Ishiguro , Hiroo Kanamori
发明人： Ichiro Tsuchiya , Shinji Ishikawa , Masahide Saitoh , Yoichi Ishiguro , Hiroo Kanamori
IPC分类号： C03B37/014
CPC分类号： C03B37/0146 , C03B2201/12
摘要： There is provided a heating furnace comprising a furnace body, a cylindrical zone heater in the furnace body, a muffle tube installed through the furnace body for thermally treating a porous preform made of high purity quartz glass by moving the preform vertically therethrough and a partition means in the portion of the muffle tube projecting above the furnace body to divide an interior space of the muffle tube into an upper space and a lower one.

14. 发明授权

US4765815A Method for producing glass preform for optical fiber 失效
标题翻译：光纤玻璃预制棒的制造方法
公开(公告)号：US4765815A
公开(公告)日：1988-08-23
申请号：US88542
申请日：1987-08-20
申请人： Toshio Danzuka , Hiroshi Yokota , Yoichi Ishiguro
发明人： Toshio Danzuka , Hiroshi Yokota , Yoichi Ishiguro
IPC分类号： C03B37/018 , C03B8/04 , C03B37/014 , G02B6/00
CPC分类号： C03B37/0142 , C03B2201/08 , C03B2207/06 , C03B2207/20 , C03B2207/30 , C03B2207/50 , Y02P40/57
摘要： A method for producing a glass preform for an optical fiber by means at least two burners, comprising jetting a glass raw material containing SiCl.sub.4 from the first center burner and a hydrogen-containing silicon compound with larger reaction heat than SiCl.sub.4 from at least one second burner, flame hydrolyzing the glas raw material to synthesizing fine glass particles, depositing the fine glass particles on a starting member to form a porous soot preform and heating and sintering the soot preform to obtain a transparent glass preform, by which a large preform is stably produced and a bulk density of the preform is easily controlled.
摘要翻译：一种用于通过至少两个燃烧器制造用于光纤的玻璃预制棒的方法，包括从第一中心燃烧器喷射含有SiCl 4的玻璃原料和来自至少一个第二燃烧器的比SiCl4更大的反应热的含氢硅化合物火焰水解玻璃原料以合成细微玻璃颗粒，在起始部件上沉积微细玻璃颗粒以形成多孔烟炱预制件，并加热和烧结烟炱预制件以获得透明玻璃预成型件，通过该玻璃预制件稳定地制造大型预制件并且易于控制预成型体的体积密度。

15. 发明授权

US4664690A Method for producing glass preform for optical fiber 失效
标题翻译：光纤玻璃预制棒的制造方法
公开(公告)号：US4664690A
公开(公告)日：1987-05-12
申请号：US748561
申请日：1985-06-25
申请人： Michihisa Kyoto , Minoru Watanabe , Yoichi Ishiguro
发明人： Michihisa Kyoto , Minoru Watanabe , Yoichi Ishiguro
IPC分类号： C03B37/018 , C03B32/00 , C03B37/014 , G02B6/00 , C03B37/027
CPC分类号： C03B37/01446
摘要： A method for producing a glass preform for an optical fiber comprising flame hydrolyzing a glass raw material in an oxyhydrogen flame to form glass fine particles, depositing the glass fine particles on a seed member to produce a solid or hollow cylindrical soot preform, dehydrating by holding the whole soot preform in an atmosphere containing a dehydrating agent kept at such temperature for such period of time that the diameter of the soot preform shrinks by at least 20%, and heating and sintering the dehydrated soot preform by introducing it from its one end in an atmosphere of a pure inert gas to produce a glass preform having a uniform distribution of refractive index along its length, from which glass preform, an optical fiber having attenuation of light transmission as low as 1 dB/km or less at a wavelength of 1.30 micrometer is fabricated.
摘要翻译：一种制造光纤用玻璃预成型体的方法，其特征在于，在氧氢火焰中火焰水解玻璃原料，形成玻璃微粒，将玻璃微粒沉积在种子部件上，制成固体或中空的圆筒状烟炱预制品，整个烟灰预制件在含有脱水剂的气氛中保持在这样的温度下一段时间，使得烟灰预制件的直径收缩至少20％，并且通过将脱水烟炱预制件的一端引入纯惰性气体的气氛，以产生沿其长度具有均匀折射率分布的玻璃预成型件，玻璃预制件，在1.30的波长下具有低至1dB / km或更小的光透射衰减的光纤制造千分尺。

16. 发明授权

US06347537B1 Method of drawing a twisted optical fiber 有权
标题翻译：绘制扭曲光纤的方法
公开(公告)号：US06347537B1
公开(公告)日：2002-02-19
申请号：US09510237
申请日：2000-02-22
申请人： Masashi Onishi , Koji Amemiya , Masahiro Takagi , Yoichi Ishiguro
发明人： Masashi Onishi , Koji Amemiya , Masahiro Takagi , Yoichi Ishiguro
IPC分类号： C03B37027
CPC分类号： C03B37/02745 , C03B37/027 , C03B37/03 , C03B37/032 , C03B2203/06 , C03B2203/19 , C03B2203/24 , C03B2203/36 , C03B2205/06 , C03C25/12 , G02B6/02285 , G02B6/105
摘要： An optical fiber is rolled by a swing motion of a swing guide roller in order to impart a predetermined twist to it effectively, and its polarization dispersion is suppressed equivalently as in a perfectly circular concentric optical fiber. A method of manufacturing such an optical fiber is also provided. As a swing guide roller swings, the optical fiber is rolled on its roller surface, so that a clockwise twist and a counterclockwise twist are imparted to the optical fiber alternately. At this time, the optical fiber is fitted in a V-shaped narrow groove formed at the central portion of the roller surface of a next-stage first stationary guide roller provided just beside the swing guide roller. Rolling of the optical fiber on the roller surface of the first stationary guide roller is suppressed, thereby helping smooth rolling of the optical fiber on the roller surface of the swing guide roller. As a result, a twist can be imparted to the optical fiber highly efficiently in accordance with the swing speed of the swing guide roller.
摘要翻译：通过摆动导向辊的摆动来卷绕光纤，以有效地赋予其预定的扭曲，并且其偏振色散被等同地抑制在完全圆形的同心光纤中。还提供了制造这种光纤的方法。当摆动导辊摆动时，光纤在其辊表面上滚动，从而交替地向光纤施加顺时针扭转和逆时针扭转。此时，光纤被装配在形成在位于摆动导向辊旁边的下一级第一固定导辊的辊面的中心部分的V形狭槽中。抑制光纤在第一固定导辊的辊面上的滚动，从而有助于光纤在摆动导辊的辊面上的平滑滚动。结果，可以根据回转导辊的摆动速度高效率地赋予光纤扭转。

17. 发明授权

US5620494A Method for manufacturing optical fiber coupler 失效
标题翻译：制造光纤耦合器的方法
公开(公告)号：US5620494A
公开(公告)日：1997-04-15
申请号：US474907
申请日：1995-06-07
申请人： Eisuke Sasaoka , Yuji Kobayashi , Tomomi Moriya , Yoichi Ishiguro , Shigeru Semura
发明人： Eisuke Sasaoka , Yuji Kobayashi , Tomomi Moriya , Yoichi Ishiguro , Shigeru Semura
IPC分类号： G02B6/28 , C03B37/07 , C03B37/15 , G02B6/255
CPC分类号： G02B6/2835
摘要： The present invention provides a method for manufacturing an optical fiber coupler in which an optical fiber is elongated and heated by using a heating source under a constant tension. The heat source is controlled based on the ratio of a target elongating speed and an actual elongating speed of the optical fiber.
摘要翻译：本发明提供了一种制造光纤耦合器的方法，其中光纤被拉长并通过使用恒定张力的加热源加热。基于目标延长速度与光纤的实际延长速度的比率来控制热源。

18. 发明授权

US5348564A Method for manufacturing a hermetically coated optical fiber 失效
标题翻译：制造密封型光纤的方法
公开(公告)号：US5348564A
公开(公告)日：1994-09-20
申请号：US835892
申请日：1992-02-14
申请人： Haruhiko Aikawa , Katsuya Nagayama , Yoichi Ishiguro , Ichiro Yoshimura , Yutaka Katsuyama , Nobuyuki Yoshizawa
发明人： Haruhiko Aikawa , Katsuya Nagayama , Yoichi Ishiguro , Ichiro Yoshimura , Yutaka Katsuyama , Nobuyuki Yoshizawa
IPC分类号： C03C25/10 , C03C25/22 , C03B37/025
CPC分类号： C03C25/1075 , C03C25/223
摘要： An apparatus for manufacturing a hermetically coated optical fiber having a single reaction chamber into which a fare fiber and raw gas are to be introduced for applying a hermetic coating to the bare fiber while the bare fiber passes through the reaction chamber is characterized by that the reaction chamber has a plurality of inlet tubes to introduce the raw gas, and the plurality of inlet tubes open to the reaction chamber at different positions from each other in a direction of movement of the bare fiber passing through said reaction chamber.
摘要翻译：一种用于制造具有单个反应室的气密涂层光纤的装置，其中在裸光纤通过反应室的同时，将导入纤维和原料气体的空气涂层施加到裸露的纤维上，其特征在于反应室具有多个入口管以引入原料气体，并且多个入口管在通过所述反应室的裸纤维的运动方向上彼此不同的位置处朝向反应室开口。

19. 发明授权

US5281247A Method for producing hermetic coated optical fiber 失效
标题翻译：密封涂层光纤的制造方法
公开(公告)号：US5281247A
公开(公告)日：1994-01-25
申请号：US985113
申请日：1992-12-03
申请人： Haruhiko Aikawa , Yoichi Ishiguro , Katsuya Nagayama , Ichiro Yoshimura , Yutaka Katsuyama , Nobuyuki Yoshizawa
发明人： Haruhiko Aikawa , Yoichi Ishiguro , Katsuya Nagayama , Ichiro Yoshimura , Yutaka Katsuyama , Nobuyuki Yoshizawa
IPC分类号： C03C25/10 , C03C25/22 , C03C25/42 , C03B37/023
CPC分类号： C03C25/223 , C03C25/1075
摘要： A hermetic coated optical fiber is produced by preparing a bare optical fiber by melting and drawing an optical fiber preform in a fiber drawing furnace and introducing the bare optical fiber in a reactor in which a raw material gas is introduced and forming a hermetic coating film around a surface of the bare optical fiber by a chemical vapor deposition method or pyrolysis in the reactor, wherein a part of an inert gas for purging the fiber drawing furnace which has been heated by a heater equipped in the furnace is exhausted and a rest of the inert gas is introduced in the reactor for diluting the raw material gas.
摘要翻译：通过在纤维拉伸炉中熔融拉伸光纤预制件并将裸光纤引入到其中引入原料气体并形成密封涂膜的反应器中来制备密封涂层光纤裸机光纤的表面通过化学气相沉积法或反应器中的热解，其中一部分用于吹扫由在炉中装备的加热器加热的纤维拉丝炉的惰性气体被排出，其余的在反应器中引入惰性气体来稀释原料气体。

20. 发明授权

US5145507A Method for producing glass preform for optical fiber 失效
标题翻译：光纤玻璃预制棒的制造方法
公开(公告)号：US5145507A
公开(公告)日：1992-09-08
申请号：US640556
申请日：1991-01-14
申请人： Michihisa Kyoto , Yoichi Ishiguro , Akira Urano , Hideo Kakuzen
发明人： Michihisa Kyoto , Yoichi Ishiguro , Akira Urano , Hideo Kakuzen
IPC分类号： C03B37/014
CPC分类号： C03B37/01446 , C03B37/0146 , C03B2201/075 , C03B2201/12 , Y10S65/16 , Y10S65/90
摘要： A glass preform is produced by forming a glass soot composite body having a core portion consisting of a solid glass and a peripheral portion consisting of a porous glass mass, removing trapped gas and water from pores of the soot composite body by heating the soot composite body under a pressure lower than several ten Torr. at a temperature at which the porous glass mass is not vitrified, filling the pores in the porous glass mass of the soot composite body with a gas containing SiF.sub.4, the partial pressure of which is a function of the desired specific difference of refractive index, thus uniformly adding fluorine to the soot glass mass, and vitrifying the fluorine-added soot glass mass into a transparent glass mass to form a glass preform.
摘要翻译：通过形成具有由固体玻璃构成的核心部分和由多孔玻璃组成的周边部分的玻璃烟炱复合体制造玻璃预制件，通过加热烟炱复合体，从烟炱复合体的孔中除去捕获的气体和水在低于几十乇的压力下。在多孔玻璃体未被玻璃化的温度下，用含有SiF 4的气体填充烟灰复合体的多孔玻璃体中的孔，其分压是期望的折射率差异的函数，因此向烟灰玻璃块均匀地加入氟，并将氟化烟炱玻璃块玻璃化成透明玻璃块以形成玻璃预制件。

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