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1. 发明申请

US20130298611A1 METHOD OF MANUFACTURING OPTICAL FIBER BASE MATERIAL AND APPARATUS OF THE SAME 有权
公开(公告)号：US20130298611A1
公开(公告)日：2013-11-14
申请号：US13947923
申请日：2013-07-22
申请人： c/o Shin-Etsu Chemical Co., Ltd.
发明人： Dai Inoue , Hiroyuki Koide , Takaaki Nagao
IPC分类号： C03B37/014
CPC分类号： C03B37/0146
摘要： A method of manufacturing an optical fiber base material includes: forming a porous glass base material by depositing glass particles; providing a synthetic quartz glass vessel at least partly made of quartz glass which contains aluminum equal to or less than 0.01 ppm; introducing dehydration reaction gas and inert gas into the vessel; heating a portion made of quartz glass which contains aluminum equal to or less than 0.01 ppm in the vessel that contains the dehydration reaction gas and the inert gas; and inserting the porous glass base material into the heated vessel to dehydrate and sinter the porous glass base material.

2. 发明授权

US11378738B2 Optical fiber 有权
公开(公告)号：US11378738B2
公开(公告)日：2022-07-05
申请号：US17228707
申请日：2021-04-13
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Hiroki Kojima , Dai Inoue
IPC分类号： G02B6/036 , G02B6/02 , G02B6/28 , G02B6/122
摘要： An optical fiber includes a core with radius r1, a first clad layer with outermost radius r2 adjacent to the core at radial position r1 and covering the outer periphery of the core, a second clad layer with outermost radius r3 adjacent to the first clad layer at radial position r2 and covering the outer periphery of the first clad layer, and a third clad layer adjacent to the second clad layer at radial position r3 and covering the outer periphery of the second clad layer. The refractive index of the first clad layer decreases continuously from the inside to the outside, reaching a maximum value at radial position r1 and a minimum value at radial position r2. The refractive index of the second clad layer increases continuously from the inside to the outside, reaching a minimum value at radial position r2 and a maximum value at radial position r3.

3. 发明授权

US11155488B2 Apparatus and method for manufacturing porous glass preform for optical fiber 有权
公开(公告)号：US11155488B2
公开(公告)日：2021-10-26
申请号：US16371118
申请日：2019-04-01
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Naoto Noda , Hitoshi Iinuma , Dai Inoue
IPC分类号： C03B37/014
摘要： A manufacturing method of a porous glass preform for optical fiber by depositing glass microparticles on a starting member, including supplying a vaporizer with organic silicon compound raw material in a liquid state and a carrier gas; in the vaporizer, mixing and vaporizing the organic silicon compound raw material in a liquid state and the carrier gas to convert the organic silicon compound raw material and the carrier gas into a raw material mixed gas; supplying a burner with the raw material mixed gas and a combustible gas, combusting the raw material mixed gas and the combustible gas in the burner, and ejecting SiO2 microparticles generated by the combustion from the burner; and depositing the SiO2 microparticles ejected from the burner on the starting member by repeatedly moving the vaporizer and the burner together, in a synchronized manner, parallel to the starting member in a longitudinal direction thereof.

4. 发明授权

US09527764B2 Quartz glass manufacturing method using hydrogen obtained by vaporizing liquid hydrogen 有权
标题翻译：使用通过蒸发液态氢获得的氢的石英玻璃制造方法
公开(公告)号：US09527764B2
公开(公告)日：2016-12-27
申请号：US14280691
申请日：2014-05-19
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Dai Inoue , Takaaki Nagao , Hiroyuki Koide
IPC分类号： C03B37/014
CPC分类号： C03B37/01413 , C03B37/0142 , C03B2201/02 , C03B2201/31 , C03B2207/36 , C03B2207/70 , C03B2207/85 , C03B2207/87 , Y02P40/57
摘要： Provided is a quartz glass manufacturing method that involves using one or more burners, supplying hydrogen and oxygen to the one or more burners to generate an oxyhydrogen flame, introducing a silicide into the oxyhydrogen flame, forming a porous base material by depositing silicon dioxide generated from a flame hydrolysis reaction with the silicide, and heating and sintering the porous base material to form transparent glass, the method comprising supplying hydrogen that is stored or made at a normal temperature to the one or more burners; controlling a hydrogen flow rate using a measurement apparatus or control apparatus that performs measurement based on heat capacity of a gas; vaporizing liquid hydrogen stored in a low-temperature storage chamber, and supplying the vaporized liquid hydrogen to the one or more burners as backup hydrogen; switching from the hydrogen to the backup hydrogen; and when switching, adjusting the hydrogen flow rate to a value obtained by multiplying the hydrogen flow rate immediately after switching by a predetermined correction coefficient.
摘要翻译：提供了一种石英玻璃制造方法，其包括使用一个或多个燃烧器，向一个或多个燃烧器供应氢气和氧气以产生氢氧焰，将硅化物引入氢氧焰中，通过沉积二氧化硅形成多孔基材，与所述硅化物进行火焰水解反应，以及加热和烧结所述多孔基材以形成透明玻璃，所述方法包括将在常温下储存或制造的氢气供应给所述一个或多个燃烧器; 使用基于气体的热容量进行测量的测量装置或控制装置控制氢气流量; 蒸发存储在低温储存室中的液态氢，并将蒸发的液体氢气作为备用氢气供给到一个或多个燃烧器; 从氢气切换到备用氢气; 并且当切换时，将氢气流量调节到通过将切换之后的氢气流量乘以预定校正系数而获得的值。

5. 发明授权

US08839645B2 Method of manufacturing optical fiber base material and apparatus of the same 有权
标题翻译：制造光纤基材的方法及其装置
公开(公告)号：US08839645B2
公开(公告)日：2014-09-23
申请号：US13947923
申请日：2013-07-22
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Dai Inoue , Hiroyuki Koide , Takaaki Nagao
IPC分类号： C03B37/014
CPC分类号： C03B37/0146
摘要： A method of manufacturing an optical fiber base material includes: forming a porous glass base material by depositing glass particles; providing a synthetic quartz glass vessel at least partly made of quartz glass which contains aluminum equal to or less than 0.01 ppm; introducing dehydration reaction gas and inert gas into the vessel; heating a portion made of quartz glass which contains aluminum equal to or less than 0.01 ppm in the vessel that contains the dehydration reaction gas and the inert gas; and inserting the porous glass base material into the heated vessel to dehydrate and sinter the porous glass base material.
摘要翻译：制造光纤基材的方法包括：通过沉积玻璃颗粒形成多孔玻璃基材; 提供至少部分由含有等于或小于0.01ppm的铝的石英玻璃制成的合成石英玻璃容器; 将脱水反应气体和惰性气体引入容器中; 在含有脱水反应气体和惰性气体的容器中加热含有等于或小于0.01ppm的铝的石英玻璃制成的部分; 并将多孔玻璃基材插入加热的容器中以使多孔玻璃基材脱水并烧结。

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