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1.发明授权Method for producing glass preform for optical fiber containing fluorine in cladding 失效用于在包层中生产含氟的光纤的玻璃预制棒的方法
公开(公告)号：US4880452A
公开(公告)日：1989-11-14
申请号：US289444
申请日：1988-12-22
IPC分类号： B65G47/90 , B23Q7/04 , B25J5/02 , B25J19/00 , B66C1/22 , B66C1/24 , B66C11/02 , B66C11/04 , B66C11/06 , B66C13/12 , C03B37/014 , C03B37/018 , C03C13/04 , G02B6/00
CPC分类号： C03B37/01446 , C03B2201/12 , C03B2203/22 , Y10S65/16
摘要： A method for producing a glass preform for an optical fiber comprising a core and a cladding containing fluorine is fisclosed. The method comprises forming a porous glass layer of substantially pure quartz on an outer surface of a fused glass rod consisting of a central portion of substantially pure quartz and a peripheral portion of quartz glass containing fluorine, and heating a composite of the fused glass rod and the porous glass layer in an atmosphere containing fluorine to add fluorine to the porous glass layer and to make it transparent, by which contamination of glass with hydroxyl groups can be prevented and light transmission characteristics of an optical fiber fabricated from the glass preform are improved.
摘要翻译： 公开了一种用于生产包含芯和包含氟的包层的光纤玻璃预制棒的方法。 该方法包括在由基本上纯的石英的中心部分和含氟的石英玻璃的周边部分组成的熔融玻璃棒的外表面上形成基本上纯的石英的多孔玻璃层，并加热熔融的玻璃棒和 在含氟的气氛中的多孔玻璃层，向多孔玻璃层中添加氟并使其透明化，由此可以防止由羟基引起的玻璃的污染，并提高由玻璃预制件制造的光纤的透光特性。
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公开(公告)号：US4675040A
公开(公告)日：1987-06-23
申请号：US722384
申请日：1985-04-12
IPC分类号： C03B37/14 , C03B37/012 , C03B37/014 , G02B6/00 , C03B37/018
CPC分类号： C03B37/01446 , C03B37/014 , C03B2201/12 , C03B2203/22 , Y10S65/16
摘要： A method for producing a glass preform for a single mode optical fiber comprising a core and a cladding, which method comprises depositing fine glass particle of a glass raw material on a periphery of a cylindrical seed member having a smooth and clean outer surface by flame hydrolysis to form a soot of the fine glass material, pulling out the seed member from the soot, inserting a core glass rod in a hollow portion of the soot and dehydrating and sintering a complex of a core rod and a cladding to produce a glass preform from which a single mode optical fiber having low attenuation of light transmission, particularly due to absorption by hydroxyl groups can be drawn.
摘要翻译： 一种用于制造用于单模光纤的玻璃预制棒的方法，其包括芯和包层，该方法包括通过火焰水解在玻璃原料的周围沉积具有光滑且干净的外表面的圆柱形种子构件的细微玻璃颗粒 为了形成微细玻璃材料的烟灰，从烟灰中拉出种子构件，将核心玻璃棒插入烟灰的中空部分中，并且将芯棒和包层的复合物脱水和烧结以产生玻璃预制件 可以描绘出具有低透光率的单模光纤，特别是由于羟基的吸收。
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公开(公告)号：US4846867A
公开(公告)日：1989-07-11
申请号：US170082
申请日：1988-03-11
IPC分类号： G02B6/00 , C03B20/00 , C03B37/012 , C03B37/018
CPC分类号： C03B37/01248 , C03B37/01211 , C03B37/014 , C03B2201/02 , C03B2201/12 , Y10S65/16
摘要： A method for producing a glass preform for use in the fabrication of an optical fiber which comprises inserting a core rod made of quartz glass in a cladding tube made of quartz glass added with fluorine, heating them from the outside of the cladding tube to fuse them together to form a primary glass preform comprising a core rod and a first cladding layer around the core rod, depositing SiO.sub.2 soot particles around the primary glass preform and thermally treating the soot deposited glass preform in the presence of a fluorine-containing compound to form a final glass preform from which an optical fiber is fabricated. From the glass preform produced by this method, an optical fiber having low attenuation of light transmission in a wide range of wave-length is fabricated.
摘要翻译： 一种制造用于制造光纤的玻璃预成型件的方法，包括将由石英玻璃制成的芯棒插入由添加有氟的石英玻璃制成的包层管中，从包层管的外部加热它们以将它们熔合 一起形成主芯玻璃预制件，其中包括芯棒和围绕芯棒的第一包覆层，在主玻璃预制件周围沉积SiO 2烟灰颗粒，并在含氟化合物的存在下热处理烟灰沉积的玻璃预制件以形成 制造光纤的最终玻璃预成型件。 从通过该方法制造的玻璃预制件中，制造在宽波长范围内具有低透光衰减的光纤。
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公开(公告)号：US4666488A
公开(公告)日：1987-05-19
申请号：US833193
申请日：1986-02-27
申请人： Futoshi Mizutani , Gotaro Tanaka , Hiroo Kanamori
发明人： Futoshi Mizutani , Gotaro Tanaka , Hiroo Kanamori
IPC分类号： C03B8/04 , C03B19/14 , C03B20/00 , C03B37/014 , C03C25/04 , C03B37/027
CPC分类号： C03B19/1415 , C03B19/1469 , C03B19/1492 , C03B2207/36 , C03B2207/62 , C03B2207/66 , C03B2207/70
摘要： A method of producing a highly pure glass tube having a smooth inner surface, said method comprising the steps ofdepositing by the flame hydrolysis of a glass-forming raw material, a first layer of glass soot particles having a bulk density no greater than 0.2 g/cm.sup.3 on a seed member having a smooth and clean outer surface,depositing on the surface of the first layer of glass soot particles, a second layer of glass soot particles having a bulk density greater than that of the first layer by at least 0.03 g/cm.sup.3,drawing the seed member from the deposited two-layered glass soot preform to form a tube of glass soot particles,removing the first inner layer of glass soot particles from the second layer, either simultaneously with or subsequent to the drawing of the seed member from the soot preform, andheating and vitrifying the tubular glass soot preform to form a transparent solid glass tube.
摘要翻译： 一种制造具有光滑内表面的高纯玻璃管的方法，所述方法包括以下步骤：通过火焰水解沉积玻璃形成原料，堆积密度不大于0.2g的第一层玻璃烟灰颗粒 在具有平滑和干净的外表面的种子构件上沉积在第一层玻璃烟灰颗粒的表面上，第二层玻璃烟灰颗粒的堆积密度大于第一层的堆积密度至少0.03g 从沉积的双层玻璃烟炱预制件中拉出种子构件以形成玻璃烟灰颗粒管，从第二层去除第一内层的玻璃烟灰颗粒，或者同时或之后拉出种子 来自烟灰预制件的构件，以及加热和玻璃化管状玻璃烟炱预制件以形成透明的固体玻璃管。
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公开(公告)号：US4668263A
公开(公告)日：1987-05-26
申请号：US794847
申请日：1985-11-04
IPC分类号： G02B6/00 , C03B8/00 , C03B20/00 , C03B23/207 , C03B37/012 , C03B37/027
CPC分类号： C03B37/01211 , Y10S65/16 , Y10S65/90
摘要： A rod-in-tube method for producing a glass preform for use in the fabrication of an optical fiber, which comprises steps of inserting a glass rod as a core material in a glass tube as a cladding material, fusing and closing one end of the cladding material, filling a gap between the core and cladding materials with an atmosphere containing at least one gaseous halogen-containing compound and then heating the core and cladding materials at a temperature not lower than 1,900.degree. C. to collapse the gap between them and to fuse them together, from which glass preform, an optical fiber with low attenuation of light transmission is fabricated.
摘要翻译： 一种用于制造用于制造光纤的玻璃预制棒的棒管式方法，包括将作为芯材的玻璃棒作为包层材料插入玻璃管中的步骤，将玻璃棒的一端 用包含至少一种含气体的化合物的气氛填充芯和包层材料之间的间隙，然后在不低于1900℃的温度下加热芯和包层材料，以使它们之间的间隙折叠到 将它们融合在一起，制造玻璃预制件，具有低光透射衰减的光纤。
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公开(公告)号：US4627867A
公开(公告)日：1986-12-09
申请号：US708051
申请日：1985-03-04
申请人： Gotaro Tanaka , Hiroo Kanamori , Futoshi Mizutani
发明人： Gotaro Tanaka , Hiroo Kanamori , Futoshi Mizutani
IPC分类号： C03B37/018 , C03B8/00 , C03B19/14 , C03B37/014 , C03B37/12 , G02B6/00 , C03B19/06
CPC分类号： C03B37/0142 , C03B37/01446 , C03B2207/06 , C03B2207/20 , C03B2207/22 , C03B2207/52 , C03B2207/54 , Y02P40/57
摘要： A method for producing a glass preform for an optical fiber by an outside vapor-phase deposition method, which comprises forming fine glass particles by jetting gaseous glass raw material and fuel gas from a first burner to deposit the particles on a seed rod to form a soot rod at such a temperature that a specific bulk density of the soot rod being formed is low and subsequently heating the soot rod by a second burner so as to increase the bulk density of the soot and then sintering the soot rod to obtain a transparent glass preform for an optical fiber, by which method, a highly pure glass preform is produced in a good deposition yield without cracking.
摘要翻译： 一种用于通过外部气相沉积方法制造用于光纤的玻璃预制棒的方法，其包括通过从第一燃烧器喷射气态玻璃原料和燃料气体来形成细玻璃颗粒，以将颗粒沉积在种棒上以形成 烟炱杆的温度使得形成的烟灰棒的特定体积密度低，随后通过第二燃烧器加热烟灰棒，以增加烟炱的堆积密度，然后烧结烟炱杆以获得透明玻璃 用于光纤的预成型体，通过该方法，以良好的沉积产率生产高纯度玻璃预制棒而不产生裂纹。
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公开(公告)号：US4812155A
公开(公告)日：1989-03-14
申请号：US132655
申请日：1987-12-10
申请人： Michihisa Kyoto , Naoki Yoshioka , Gotaro Tanaka , Hiroo Kanamori , Minoru Watanabe , Motohiro Nakahara
发明人： Michihisa Kyoto , Naoki Yoshioka , Gotaro Tanaka , Hiroo Kanamori , Minoru Watanabe , Motohiro Nakahara
IPC分类号： C03B37/014 , C03B37/018
CPC分类号： C03B37/01446 , C03B2201/12 , C03B2201/31 , C03B2201/32 , C03B2201/42 , C03B2203/22 , Y10S65/16
摘要： A method for producing a glass preform for optical fibers in which fluorine is efficiently incorporated into the preform without incorporation of Fe or Cu. A fine glass particle mass, made primarily of quartz, is converted into transparent glass by heating it in a gas atmosphere containing at least a fluorine-based compound gas and a chlorine-based compound gas. The preferred heating range is 1,100.degree. to 1,400.degree. C.
摘要翻译： 一种用于制造光纤的玻璃预制棒的方法，其中氟被有效地结合到预成型体中而不引入Fe或Cu。 主要由石英制成的微细玻璃颗粒物质通过在至少含有氟基化合物气体和氯基化合物气体的气体气氛中加热而转化为透明玻璃。 优选的加热范围为1100至1400℃。
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公开(公告)号：US4627866A
公开(公告)日：1986-12-09
申请号：US679030
申请日：1984-12-06
申请人： Hiroo Kanamori , Gotaro Tanaka , Kazunori Chida
发明人： Hiroo Kanamori , Gotaro Tanaka , Kazunori Chida
IPC分类号： C03B37/018 , C03B19/14 , C03B37/014 , G02B6/00
CPC分类号： C03B37/0142 , C03B2201/12 , C03B2207/06 , C03B2207/20 , C03B2207/22 , C03B2207/28 , C03B2207/30 , Y10S65/16
摘要： A method for producing an optical fiber preform comprising injecting a glass raw material, a gaseous fluorine-containing material and oxygen gas from a first nozzle, inactive gas from a second nozzle which surrounds the first nozzle and hydrogen gas from a third nozzle which surrounds the second nozzle, flame hydrolyzing the glass raw material to synthesis fine glass particles and depositing the fine glass particles on a tip of a rotating seed rod to produce the optical fiber preform containing fluorine.
摘要翻译： 一种用于制造光纤预制棒的方法，包括从第一喷嘴注入玻璃原料，气态含氟材料和氧气，包围第一喷嘴的第二喷嘴的惰性气体和围绕第一喷嘴的第三喷嘴的氢气 第二喷嘴，火焰水解玻璃原料以合成细微玻璃颗粒并将细玻璃颗粒沉积在旋转种棒的尖端上，以制造含氟的光纤预制件。
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公开(公告)号：US4793842A
公开(公告)日：1988-12-27
申请号：US139141
申请日：1987-12-21
IPC分类号： G02B6/00 , C03B20/00 , C03B37/012 , C03B37/025 , G02B6/02 , C03B37/014 , C03B37/027
CPC分类号： C03B37/01211 , Y02P40/57 , Y10S65/16 , Y10S65/90
摘要： A rod-in-tube method for producing a glass preform for use in the fabrication of an optical fiber, which comprises steps of inserting a glass rod constituting a core material in a glass tube constituting a cladding material, heating the rod-tube composite by an outer heating source with introducing, in the gap between the rod and the tube, a gaseous mixture containing a silicon halogenide, a fluorine-containing compound and oxygen gas in which a ratio of silicon and fluorine (Si/F) is larger than 1/300 and smaller than 1/5, and heating and fusing the composite at a temperature not lower than 1,900.degree. C. with filling the gap by a gaseous mixture comprising a halogen-containing compound and oxygen gas; from which glass preform, an optical fiber with low attenuation of light transmission, particularly in a long wavelength range, is fabricated.
摘要翻译： 一种用于制造用于制造光纤的玻璃预制棒的棒管式方法，包括以下步骤：将构成芯材的玻璃棒插入构成包层材料的玻璃管中，通过以下步骤加热棒管复合物： 外部加热源，其在棒和管之间的间隙中引入含有硅和氟（Si / F）比大于1的硅卤化物，含氟化合物和氧气的气体混合物 / 300且小于1/5，并且在不低于1900℃的温度下加热和熔合复合材料，通过包含含卤化合物和氧气的气体混合物填充间隙; 制造玻璃预制件，具有低透光衰减的光纤，特别是在长波长范围内。
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公开(公告)号：US4737179A
公开(公告)日：1988-04-12
申请号：US893084
申请日：1986-08-04
IPC分类号： G02B6/00 , C03B20/00 , C03B37/012 , C03B37/014 , C03B37/018
CPC分类号： G02B6/03644 , C03B37/01211 , C03B37/01228 , C03B37/01231 , C03B37/01248 , C03B37/014 , C03B37/01466 , G02B6/03666 , C03B2203/22 , C03B2203/36 , G02B6/02276
摘要： A method for producing a glass preform for use in fabrication of an optical fiber, which comprises steps of forming a cylindrical rod of glass having a refractive index distribution with axial symmetry around the rod axis by an VAD method, stretching the rod glass to decrease its diameter, inserting the stretched rod in a glass tube having a refractive index distribution with axial symmetry around the tube axis and heating and melting a complex of the stretched rod and the tube to integrate them from the glass preform produced by the method, an optical fiber having precisely controlled refractive index distribution can be fabricated.
摘要翻译： 一种制造用于制造光纤的玻璃预制棒的方法，包括以下步骤：通过VAD法形成具有围绕杆轴的轴向对称折射率分布的圆柱形棒，拉伸棒玻璃以减少其 将拉伸棒插入具有围绕管轴线的轴向对称折射率分布的玻璃管中，并加热并熔化拉伸棒和管的复合物，以将它们与由该方法制备的玻璃预制件相结合，将光纤 可以制造精确控制的折射率分布。
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