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1.发明申请公开(公告)号：US20110000262A1
公开(公告)日：2011-01-06
申请号：US12885043
申请日：2010-09-17
申请人： Manabu Saitou , Naritoshi Yamada
发明人： Manabu Saitou , Naritoshi Yamada
IPC分类号： C03B37/018
CPC分类号： C03B37/0146
摘要： A dehydration-sintering furnace includes a core tube configured to dehydrate and sinter a porous base material in fabrication of an optical fiber and having an outlet configured to discharge a vapor. The furnace includes a pressure-variation damper connected to the outlet of the core tube. The furnace includes a trap between the core tube and the pressure-variation damper for collecting the vapor.
摘要翻译： 脱水烧结炉包括芯管，其配置成在制造光纤时使多孔基材脱水并烧结并且具有排出蒸气的出口。 该炉包括连接到芯管的出口的压力变化阻尼器。 炉子包括在芯管和用于收集蒸汽的压力变化阻尼器之间的陷阱。
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公开(公告)号：US20100077800A1
公开(公告)日：2010-04-01
申请号：US12630440
申请日：2009-12-03
申请人： Kentaro ICHII , Takakazu GOTOH , Naritoshi YAMADA , Koichi HARADA
发明人： Kentaro ICHII , Takakazu GOTOH , Naritoshi YAMADA , Koichi HARADA
IPC分类号： C03C3/32
CPC分类号： C03B37/0142 , C03B37/01413 , C03B2201/12 , C03B2203/22 , C03B2207/22 , C03B2207/36 , C03B2207/50 , Y02P40/57
摘要： A method for fabricating a porous silica preform includes the steps of supplying fuel gas for generating an oxyhydrogen flame to a glass synthesizing burner; supplying Gas A containing silicon and Gas B containing fluorine to the burner; synthesizing glass particles; and depositing the glass particles around a starting rod, in which when glass particles are deposited directly on the starting rod, a supply of Gas A and a supply of Gas B supplied to the burner are adjusted so that a ratio of the number of fluorine atoms to the number of silicon atoms in the gas supplied to the burner satisfies the following Formula (1): {(number of F atoms)/(number of Si atoms)}≦0.1 (1)
摘要翻译： 制造多孔二氧化硅预制件的方法包括以下步骤：向玻璃合成燃烧器提供产生氢氧焰的燃料气体; 将含有硅的气体A和含氟的气体B供应到燃烧器; 合成玻璃颗粒; 并且将玻璃颗粒沉积在起始棒周围，其中当玻璃颗粒直接沉积在起始棒上时，调节供应气体A和供应到燃烧器的气体B的供应，使得氟原子数 提供给燃烧器的气体中的硅原子数满足下式（1）：{（F原子数）/（Si原子数）}＆nlE; 0.1（1）
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公开(公告)号：US20060137404A1
公开(公告)日：2006-06-29
申请号：US11313617
申请日：2005-12-22
申请人： Tomohiro Nunome , Naritoshi Yamada
发明人： Tomohiro Nunome , Naritoshi Yamada
IPC分类号： C03B37/018
CPC分类号： C03B37/01413 , C03B37/0142 , C03B2207/06 , C03B2207/12 , C03B2207/20 , C03B2207/36 , C03B2207/42
摘要： A method for manufacturing a glass rod includes introducing a glass source material gas, an inert gas, a flammable gas, and a combustion assisting gas to a multi-tube burner, where the multi-tube burner includes a first multi-tube, a plurality of nozzles provided surrounding the first multi-tube about a central axis of the first multi-tube and a second multi-tube provided surrounding the nozzles, where the first multi-tube and the second multi-tube have a common central axis; hydrolyzing or oxidizing the glass source material gas in a flame generated by a reaction between the flammable gas and the combustion assisting gas to synthesize glass microparticles; and depositing the glass microparticles on the outer periphery portion of the starting rod in a radial direction to manufacture the glass rod, wherein a ratio of a flow rate A of the flammable gas to a flow rate B of the combustion assisting gas (A/B) satisfies the following inequality: 2.5≦A/B≦4.5.
摘要翻译： 玻璃棒的制造方法包括将玻璃原料气体，惰性气体，易燃气体和助燃气体引入到多管燃烧器中，多管燃烧器包括第一多管，多管燃烧器 围绕第一多管的中心轴设置的第一多管周围的喷嘴和围绕喷嘴的第二多管，其中第一多管和第二多管具有共同的中心轴线; 在由可燃气体和助燃气体之间的反应产生的火焰中水解或氧化玻璃原料气体以合成玻璃微粒; 并且将玻璃微粒沿径向沉积在起始杆的外周部上以制造玻璃棒，其中可燃气体的流量A与助燃气体的流量B（A / B ）满足以下不等式：2.5 <= A / B <= 4.5。
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4.发明申请公开(公告)号：US20050166640A1
公开(公告)日：2005-08-04
申请号：US11004966
申请日：2004-12-07
申请人： Manabu Saitou , Naritoshi Yamada
发明人： Manabu Saitou , Naritoshi Yamada
IPC分类号： C03B37/014 , C03B37/018
CPC分类号： C03B37/0146
摘要： A dehydration-sintering furnace for dehydrating and/or sintering an optical fiber preform for use in production of an optical fiber includes a muffle for accommodating the optical fiber preform, a heater for heating the muffle, and a pressure fluctuation absorbing apparatus connected to the muffle. Since the pressure fluctuation absorbing apparatus is thermally insulated from a room temperature atmosphere or heated, vapor produced in a dehydration-sintering process is prevented from condensing (liquefying) in a pressure fluctuation absorbing apparatus, thereby preventing reduced dehydration effectiveness in the muffle and reduced quality of the optical fiber preform.
摘要翻译： 用于生产光纤的用于脱水和/或烧结光纤预制棒的脱水烧结炉包括用于容纳光纤预制件的马弗管，用于加热马弗管的加热器和连接到马弗管的压力波动吸收装置 。 由于压力波动吸收装置与室温气氛隔热或加热，因此防止在脱水烧结过程中产生的蒸气在压力波动吸收装置中冷凝（液化），从而防止马弗炉中的脱水效果降低，质量降低 的光纤预制棒。
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5.发明申请公开(公告)号：US20050109065A1
公开(公告)日：2005-05-26
申请号：US10983599
申请日：2004-11-09
申请人： Kentaro Ichii , Takakazu Gotoh , Naritoshi Yamada , Koichi Harada
发明人： Kentaro Ichii , Takakazu Gotoh , Naritoshi Yamada , Koichi Harada
IPC分类号： C03B37/014 , C03B37/075 , C03B37/018
CPC分类号： C03B37/0142 , C03B37/01413 , C03B2201/12 , C03B2203/22 , C03B2207/22 , C03B2207/36 , C03B2207/50 , Y02P40/57
摘要： A method for fabricating a porous silica preform includes the steps of supplying fuel gas for generating an oxyhydrogen flame to a glass synthesizing burner; supplying Gas A containing silicon and Gas B containing fluorine to the burner; synthesizing glass particles; and depositing the glass particles around a starting rod, in which when glass particles are deposited directly on the starting rod, a supply of Gas A and a supply of Gas B supplied to the burner are adjusted so that a ratio of the number of fluorine atoms to the number of silicon atoms in the gas supplied to the burner satisfies the following Formula (1): {(number of F atoms)/(number of Si atoms)}≦0.1 (1)
摘要翻译： 制造多孔二氧化硅预制件的方法包括以下步骤：向玻璃合成燃烧器提供产生氢氧焰的燃料气体; 将含有硅的气体A和含氟的气体B供应到燃烧器; 合成玻璃颗粒; 并且将玻璃颗粒沉积在起始棒周围，其中当玻璃颗粒直接沉积在起始棒上时，调节供应气体A和供应到燃烧器的气体B的供应，使得氟原子数 提供给燃烧器的气体中的硅原子数满足下式（1）：＆lt;线内公式描述=“在线公式”end =“lead”？> {（（F原子数） /（Si原子数）} <= 0.1（1）<？in-line-formula description =“In-line Formulas”end =“tail”？>
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公开(公告)号：US08869565B2
公开(公告)日：2014-10-28
申请号：US13461374
申请日：2012-05-01
IPC分类号： C03B37/018 , C03B37/014
CPC分类号： C03B37/01413 , C03B37/0142 , C03B2207/06 , C03B2207/12 , C03B2207/20 , C03B2207/22 , C03B2207/36 , C03B2207/52 , C03B2207/54 , C03B2207/60 , C03B2207/80 , C03B2207/81 , C03B2207/85
摘要： A method of producing optical fiber preform includes: forming a deposited layer by depositing glass particles on a periphery of a target element in a deposition mode while burning a mixed gas containing a glass source material gas, a flaming gas, and a supporting gas by use of a flaming burner; maintaining a state where the supporting gas flows at a flow velocity greater than or equal to a flow velocity at which a nozzle end of the supporting gas discharge nozzles does not glow while maintaining a pilot burner by allowing the flaming gas to flow to the seal gas discharge nozzle after a seal gas is replaced with the flaming gas in a case where a mode is changed from the deposition mode to a non-deposition mode; and replacing the flaming gas flowing to the flaming gas port with a purge gas.
摘要翻译： 制造光纤预制棒的方法包括：通过以沉积模式在目标元件的周围沉积玻璃颗粒而形成沉积层，同时通过使用燃烧包含玻璃原料气体，燃烧气体和支持气体的混合气体 的燃烧器; 保持支持气体以大于或等于支持气体排出喷嘴的喷嘴端不发光的流速流动的状态，同时通过允许火焰气体流到密封气体而保持引燃燃烧器 在模式从沉积模式改变为非沉积模式的情况下，用燃烧气体替换密封气体之后的排出喷嘴; 并用吹扫气体代替流入燃烧气体端口的燃烧气体。
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公开(公告)号：US20100104249A1
公开(公告)日：2010-04-29
申请号：US12648021
申请日：2009-12-28
申请人： Kenji OKADA , Naritoshi YAMADA , Shoichiro MATSUO
发明人： Kenji OKADA , Naritoshi YAMADA , Shoichiro MATSUO
IPC分类号： G02B6/036
CPC分类号： G02B6/03622 , G02B6/02033
摘要： A plastic glass optical fiber includes a glass core (diameter a1, relative refractive index difference Δ1, and refractive index n1), a polymer core (diameter a2, relative refractive index difference Δ2, and refractive index n2), and a polymer cladding (refractive index n3), in which the diameter a1 of the glass core is within a range of 110 μm to 200 μm, a parameter X (X is a22/a12) is within a range of 1.15≦X≦2.9, a parameter Y (Y is Δ2/Δ1) is within a range of 0.25≦Y≦0.84X−0.68 (when 1.15≦X≦2) or 0.48X−0.71≦Y≦−(2/9)X+13/9 (when 2≦X≦2.9), a parameter ZR (ZR is Z2core/Z1core; Z2core=a22π/4×√(n12−n32) and Z1core=a12π/4×√(n12n−n22)) is within a range of 1.25≦ZR≦4.
摘要翻译： 塑料玻璃光纤包括玻璃芯（直径a1，相对折射率差Dgr; 1和折射率n1），聚合物芯（直径a2，相对折射率差Dgr; 2和折射率n2）和 聚合物包层（折射率n3），其中玻璃纤芯的直径a1在110μm至200μm的范围内，参数X（X是a22 / a12）在1.15＆lt; 1EE的范围内; X＆ 参数Y（Y为＆Dgr; 2 /＆Dgr; 1）在0.25＆nlE; Y＆nlE; 0.84X-0.68（当1.15＆nlE; X＆lt; ll; 2）或0.48X-0.71＆NlE; Y＆ 9）X + 13/9（当2＆nlE; X＆nlE; 2.9）时，参数ZR（ZR是Z2core / Z1core; Z2core = a22＆pgr; / 4×√（n12-n32）和Z1core = a12＆pgr; / 4×√（n12n -n22））在1.25≤n1E的范围内; ZR＆nlE; 4。
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公开(公告)号：US07647792B2
公开(公告)日：2010-01-19
申请号：US10983599
申请日：2004-11-09
申请人： Kentaro Ichii , Takakazu Gotoh , Naritoshi Yamada , Koichi Harada
发明人： Kentaro Ichii , Takakazu Gotoh , Naritoshi Yamada , Koichi Harada
IPC分类号： C03B37/018
CPC分类号： C03B37/0142 , C03B37/01413 , C03B2201/12 , C03B2203/22 , C03B2207/22 , C03B2207/36 , C03B2207/50 , Y02P40/57
摘要： A method for fabricating a porous silica preform includes the steps of supplying fuel gas for generating an oxyhydrogen flame to a glass synthesizing burner; supplying Gas A containing silicon and Gas B containing fluorine to the burner; synthesizing glass particles; and depositing the glass particles around a starting rod, in which when glass particles are deposited directly on the starting rod, a supply of Gas A and a supply of Gas B supplied to the burner are adjusted so that a ratio of the number of fluorine atoms to the number of silicon atoms in the gas supplied to the burner satisfies the following Formula (1): {(number of F atoms)/(number of Si atoms)}≦0.1 (1).
摘要翻译： 制造多孔二氧化硅预制件的方法包括以下步骤：向玻璃合成燃烧器提供产生氢氧焰的燃料气体; 将含有硅的气体A和含氟的气体B供应到燃烧器; 合成玻璃颗粒; 并且将玻璃颗粒沉积在起始棒周围，其中当玻璃颗粒直接沉积在起始棒上时，调节供应气体A和供应到燃烧器的气体B的供应，使得氟原子数 与供给到燃烧器的气体中的硅原子数相符合下述式（1）：{（F原子数）/（Si原子数）}
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公开(公告)号：US20090317042A1
公开(公告)日：2009-12-24
申请号：US12109612
申请日：2008-04-25
CPC分类号： H01S3/06716 , C03B37/01838 , C03B37/01853 , C03B2201/12 , C03B2201/31 , C03B2201/36 , C03B2203/23 , C03C13/045 , C03C13/046 , G02B6/03633 , G02B6/03638
摘要： A rare earth-doped core optical fiber of the present invention includes a core comprising a silica glass containing at least aluminum and ytterbium, and a clad provided around the core and comprising a silica glass having a lower refraction index than that of the core, wherein the core has an aluminum concentration of 2% by mass or more, and ytterbium is doped into the core at such a concentration that the light absorption band which appears around a wavelength of 976 nm in the light absorption band by ytterbium contained in the core shows a peak light absorption rate of 800 dB/m or less.
摘要翻译： 本发明的稀土掺杂的芯光纤包括包含至少含有铝和镱的二氧化硅玻璃的芯和在芯周围设置的包层，其包含比芯的折射率低的石英玻璃，其中 芯的铝浓度为2质量％以上，并且以这样的浓度将镱掺杂到芯中，使得在芯中包含的镱的光吸收带中出现的波长976nm附近的光吸收带显示 峰值光吸收率为800dB / m以下。
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公开(公告)号：US20050120753A1
公开(公告)日：2005-06-09
申请号：US11004930
申请日：2004-12-07
申请人： Manabu Saitou , Naritoshi Yamada
发明人： Manabu Saitou , Naritoshi Yamada
IPC分类号： C03B37/014 , C03B37/018
CPC分类号： C03B37/0146
摘要： A dehydration-sintering furnace includes a core tube configured to dehydrate and sinter a porous base material in fabrication of an optical fiber and having an outlet configured to discharge a vapor. The furnace includes a pressure-variation damper connected to the outlet of the core tube. The furnace includes a trap between the core tube and the pressure-variation damper for collecting the vapor.
摘要翻译： 脱水烧结炉包括芯管，其配置成在制造光纤时使多孔基材脱水并烧结并且具有排出蒸气的出口。 该炉包括连接到芯管的出口的压力变化阻尼器。 炉子包括在芯管和用于收集蒸汽的压力变化阻尼器之间的陷阱。
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