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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：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：US4318726A
公开(公告)日：1982-03-09
申请号：US170392
申请日：1980-07-21
申请人： Takao Edahiro , Gotaro Tanaka , Toru Kuwahara , Michihisa Kyoto
发明人： Takao Edahiro , Gotaro Tanaka , Toru Kuwahara , Michihisa Kyoto
IPC分类号： C03B37/014 , G02B6/00 , C03B19/06
CPC分类号： C03B37/0142 , C03B37/01446 , C03B37/01466 , C03B2203/22 , C03B2203/26 , C03B2207/06 , C03B2207/20 , C03B2207/32
摘要： A process for producing an optical fiber preform which comprises forming a particulate glass rod in which the dopant concentration gradually increases toward the center of its cross section, and gradually heating the rod starting at a temperature below the minimum collapsing point of the fine glass particles in the center of the rod in such a manner that the softening of the rod proceeds from the center outward, to thereby produce a transparent glass rod.
摘要翻译： 一种光纤预制棒的制造方法，其特征在于，包括形成粒子状玻璃棒，其中掺杂剂浓度朝向其横截面的中心逐渐增加，并且在低于玻璃微粒的最小塌陷点的温度下逐渐加热棒 棒的中心以使得杆的软化从中心向外进行，从而产生透明的玻璃棒。
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4.发明授权
公开(公告)号：US5320659A
公开(公告)日：1994-06-14
申请号：US5191
申请日：1993-03-02
IPC分类号： C03C25/10 , C03C25/22 , C03B37/027
CPC分类号： C03C25/223 , C03C25/1075 , Y10T428/12444
摘要： A surface of an optical fiber is coated by a method for coating a surface of an optical fiber with carbon comprising steps of introducing an optical fiber in a reaction chamber in the same direction as the flow of a coating raw material comprising carbon, hydrogen and halogen atoms and depositing on the surface of the optical fiber a carbon layer formed from the raw material by chemical vapor deposition, whereby the coated optical fiber has improved initial tensile strength and absorbs less hydrogen.
摘要翻译： 通过用碳涂覆光纤的表面的方法涂覆光纤的表面，包括以下步骤：在反应室中沿与包含碳，氢和卤素的涂层原料的流动相同的方向引入光纤 原子并通过化学气相沉积在原料表面上沉积碳层，由此涂覆的光纤具有改善的初始拉伸强度并吸收较少的氢。
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公开(公告)号：US4975416A
公开(公告)日：1990-12-04
申请号：US435039
申请日：1989-11-13
申请人： Masashi Onishi , Takashi Kohgo , Tetsuya Ohsugi , Gotaro Tanaka
发明人： Masashi Onishi , Takashi Kohgo , Tetsuya Ohsugi , Gotaro Tanaka
CPC分类号： H01L39/248 , Y10S505/733 , Y10S505/74 , Y10S505/742
摘要： A superconducting ceramic wire is prepared from a superconducting ceramic-forming oxide composition by melting, the composition and quenching the melt to form a dense glass, which is soften and wire-drawn in a furnace. The resulting wire is heat-treated to form crystals and made into a superconducting ceramic wire. The wire has a flexibility and remarkable superconductivity which can further be improved by applying pressure to be made more dense and repeating the heat-treatment.
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公开(公告)号：US4900894A
公开(公告)日：1990-02-13
申请号：US296778
申请日：1989-01-13
IPC分类号： C03B20/00 , C03B23/043 , C03B37/018 , H05H1/46
CPC分类号： H01J37/32192 , C03B23/043 , C03B37/01876 , H05H1/46 , H01J2237/336
摘要： A method of heating a quartz glass tube with microwaves, which method comprises supplying a gas for plasma generation in the quartz glass tube, applying microwaves to the quartz glass tube so as to generate a hot plasma in the quartz glass tube and to preheat the quartz glass tube, and then discontinuing the supply of the gas for plasma generation while applying the microwaves, whereby the quartz glass tube absorbs the microwaves to heat the quartz glass tube to a sufficient temperature in a very quick and clear manner.
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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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公开(公告)号：US4693738A
公开(公告)日：1987-09-15
申请号：US781636
申请日：1985-09-30
申请人： Masao Hoshikawa , Michihisa Kyoto , Koji Yano , Gotaro Tanaka
发明人： Masao Hoshikawa , Michihisa Kyoto , Koji Yano , Gotaro Tanaka
IPC分类号： C03C13/04 , C03B37/014 , C03B37/12 , C03B37/14 , G02B6/00
CPC分类号： C03B37/01446 , C03B37/0146 , C03B2201/12 , C03B2203/22 , C03B2203/26 , Y02P40/57 , Y10S65/16
摘要： An optical fiber comprising a core essentially made of quartz and a cladding made of fluorine added quartz is fabricated with good productivity from a glass preform produced by a method comprising maintaining a hollow cylindrical porous glass preform in a first high temperature atmosphere comprising at least one fluorine-containing compound with jetting a cooling gas through the central hollow part of the porous glass preform to grade the amount of fluorine to be added in the radial direction of the porous glass preform and then sintering the porous glass preform in a second high temperature atmosphere kept at a temperature higher than the first high temperature atmosphere to make it transparent.
摘要翻译： 一种由基本上由石英制成的芯和由氟添加的石英制成的包层的光纤由具有良好生产能力的玻璃预制棒制成，所述玻璃预制棒通过包括将中空圆柱形多孔玻璃预制件保持在包括至少一种氟 通过多孔玻璃预制件的中心中空部分喷射冷却气体以分级在多孔玻璃预制件的径向方向上加入的氟量，然后在保持的第二高温气氛中烧结多孔玻璃预制件 在比第一高温气氛高的温度下使其透明。
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公开(公告)号：US4664474A
公开(公告)日：1987-05-12
申请号：US606096
申请日：1984-05-02
申请人： Gotaro Tanaka , Kunio Fujiwara , Yasuo Matsuda
发明人： Gotaro Tanaka , Kunio Fujiwara , Yasuo Matsuda
IPC分类号： C03B23/047 , C03B37/012 , C03B37/014 , C03C3/06 , C03C13/04 , G02B6/028 , G02B6/22
CPC分类号： G02B6/03627 , C03B23/047 , C03B37/01214 , C03B37/014 , C03C13/045 , G02B6/0281 , C03B2201/12 , C03B2203/22 , C03B2203/23
摘要： An optical fiber comprising core glass having therearound a cladding comprising fluorine-containing quartz glass and a process for producing the same are disclosed. Said cladding is composed of an inner portion having a prescribed thickness and a constant fluorine content through its thickness and an outer portion having its fluorine content being gradually decreased in a radial direction so that its outermost surface has a fluorine content of about 0.7% by weight or less relative to SiO.sub.2.
摘要翻译： 公开了一种包括具有包含含氟石英玻璃的包层的芯玻璃的光纤及其制造方法。 所述包层由具有规定厚度的内部部分和通过其厚度具有恒定的氟含量构成，其外部部分的氟含量在径向上逐渐减小，使得其最外表面的氟含量为约0.7重量％ 或更少。
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