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1. 发明授权

US4731103A 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：US4731103A
公开(公告)日：1988-03-15
申请号：US928644
申请日：1986-11-05
申请人： Futoshi Mizutani , Gotaro Tanaka
发明人： Futoshi Mizutani , Gotaro Tanaka
IPC分类号： G02B6/00 , C03B37/014 , C03B37/018 , C03B37/12
CPC分类号： C03B37/0142 , C03B2203/22 , C03B2207/36 , C03B2207/60 , C03B2207/62 , C03B2207/70
摘要： A glass preform for an optical fiber having homogeneous distribution of bulk density in its radial direction is produced by a method comprising forming fine glass particles by jetting a gaseous glass material and a fuel gas from a burner, depositing the fine glass particles on a seed rod to form a soot rod with measuring a temperature of a part of the soot rod on which the glass particles are being deposited so as to control said temperature, and then sintering the soot rod to obtain a transparent glass preform.
摘要翻译：通过包括通过从燃烧器喷射气态玻璃材料和燃料气体而形成微细玻璃颗粒的方法来生产用于光纤的具有均匀分布的径向方向的堆积密度的玻璃预制件，将细微玻璃颗粒沉积在种子棒以形成烟灰棒，测量其上沉积有玻璃颗粒的烟灰棒的一部分的温度以控制所述温度，然后烧结烟灰棒以获得透明玻璃预制件。

2. 发明授权

US4675040A Method for producing glass preform for single mode optical fiber 失效
标题翻译：单模光纤玻璃预制棒的生产方法
公开(公告)号：US4675040A
公开(公告)日：1987-06-23
申请号：US722384
申请日：1985-04-12
申请人： Gotaro Tanaka , Futoshi Mizutani , Naoki Yoshioka , Hiroo Kanamori
发明人： Gotaro Tanaka , Futoshi Mizutani , Naoki Yoshioka , Hiroo Kanamori
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。

3. 发明授权

US4668263A 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：US4668263A
公开(公告)日：1987-05-26
申请号：US794847
申请日：1985-11-04
申请人： Hiroshi Yokota , Gotaro Tanaka , Hiroo Kanamori , Futoshi Mizutani , Toshio Danzuka
发明人： Hiroshi Yokota , Gotaro Tanaka , Hiroo Kanamori , Futoshi Mizutani , Toshio Danzuka
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。

4. 发明授权

US4627867A Method for producing highly pure glass preform for optical fiber 失效
标题翻译：生产高纯度光纤玻璃预制棒的方法
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。

5. 发明授权

US4875918A Method of manufacturing fiber preform for single-mode fibers 失效
标题翻译：单模光纤预制棒的制造方法
公开(公告)号：US4875918A
公开(公告)日：1989-10-24
申请号：US289399
申请日：1988-12-19
申请人： Futoshi Mizutani , Takeshi Kyogoku , Tatsuo Saitoh , Shigeki Endoh
发明人： Futoshi Mizutani , Takeshi Kyogoku , Tatsuo Saitoh , Shigeki Endoh
IPC分类号： G02B6/00 , C03B8/04 , C03B20/00 , C03B37/014 , C03B37/018
CPC分类号： C03B37/01413 , C03B37/01446 , C03B2203/22 , Y10S65/90
摘要： A method of manufacturing a glass fiber preform in which a quartz glass rod having an outer coating containing chlorine and a core doped for higher refractive index has blown thereon a soot formed by a burner fed with quartz glass raw material and a chlorine group gas undergoing flame hydrolysis. The resulting composite is the heated and fused to collapse.
摘要翻译：一种制造玻璃纤维预成型体的方法，其中具有含有氯的外涂层和掺杂有较高折射率的芯的石英玻璃棒在其上吹入由石英玻璃原料和经历火焰的氯基气体的燃烧器形成的烟灰水解。所得到的复合材料被加热并熔化成塌陷。

6. 发明授权

US4846867A 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：US4846867A
公开(公告)日：1989-07-11
申请号：US170082
申请日：1988-03-11
申请人： Hiroshi Yokota , Hiroo Kanamori , Yoichi Ishiguro , Futoshi Mizutani , Gotaro Tanaka
发明人： Hiroshi Yokota , Hiroo Kanamori , Yoichi Ishiguro , Futoshi Mizutani , Gotaro Tanaka
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。

7. 发明授权

US4750927A Heating apparatus for drawing glass rod 失效
标题翻译：玻璃棒加热装置
公开(公告)号：US4750927A
公开(公告)日：1988-06-14
申请号：US78847
申请日：1987-07-28
申请人： Futoshi Mizutani , Katsuzou Mukai , Tohru Kuwahara
发明人： Futoshi Mizutani , Katsuzou Mukai , Tohru Kuwahara
IPC分类号： G02B6/00 , C03B23/043 , C03B23/047 , C03B37/012 , C03B37/03 , C03B37/12 , C03B37/027
CPC分类号： C03B37/01257 , C03B23/043 , C03B23/047 , C03B2205/63 , C03B2205/80 , C03B2205/82
摘要： A heating apparatus for drawing a glass rod having a tapered portion coupled, at its upper end, with a feed bar of an outside diameter smaller than that of the glass rod, including an apparatus housing into which the glass rod is inserted, a first sealing cover which is formed with a bore having such a dimension as to seal a clearance between the glass rod and the bore and is hermetically mounted on an inlet opening of the apparatus housing and a second sealing cover which is movably attached to the feed bar and is formed with an aperture having such a dimension as to seal a clearance between the feed bar and the aperture. The second sealing cover has a hollow portion which is formed with a space for accommodating the tapered portion and is hermetically placed, at its lower end, on the inlet opening.

8. 发明授权

US4880452A Method for producing glass preform for optical fiber containing fluorine in cladding 失效
标题翻译：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
申请人： Hiroo Kanamori , Gotaro Tanaka , Michihisa Kyoto , Naoki Yoshioka , Futoshi Mizutani
发明人： Hiroo Kanamori , Gotaro Tanaka , Michihisa Kyoto , Naoki Yoshioka , Futoshi Mizutani
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。

9. 发明授权

US4666488A Process of producing a highly pure glass tube 失效
标题翻译：生产高纯玻璃管的工艺
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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