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1. 发明授权

US4902325A 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：US4902325A
公开(公告)日：1990-02-20
申请号：US928727
申请日：1986-11-10
申请人： Michihisa Kyoto , Minoru Watanabe , Shigeru Tanaka , Motohiro Nakahara
发明人： Michihisa Kyoto , Minoru Watanabe , Shigeru Tanaka , Motohiro Nakahara
IPC分类号： C03B37/14 , C03B8/04 , C03B19/14 , C03B20/00 , C03B37/014 , G02B6/00
CPC分类号： C03B37/0146 , C03B37/01446 , C03B2201/28 , C03B2201/31 , Y10S65/90
摘要： A method for producing a glass preform for an optical fiber comprising forming a fine glass particle mass by flame hydrolysis of a glass raw material, dehydrating the fine glass particle mass in an oxygen atmosphere containing chlorine or a chlorine-containing compound at such temperature that the soot preform is not considerably shrunk and heating the soot preform at a temperature at which the soot preform is sintered and made transparent, the glass preform produced by which method contains less hydroxyl groups, structural defects and an optical fiber fabricated from said glass preform has stable light transmission characteristics for a long time.
摘要翻译：一种光纤用玻璃预制体的制造方法，其特征在于，通过玻璃原料的火焰水解形成微细玻璃粒子群，在含有氯或含氯化合物的氧气氛中使微细玻璃粒子物质脱水，烟炱预制件不会显着收缩，并且在烟炱预制件被烧结和制成透明的温度下加热烟炱预制件，由该方法制备的玻璃预制件含有较少的羟基，结构缺陷和由所述玻璃预制件制成的光纤具有稳定光传输特性长时间。

2. 发明授权

US4545801A Raw material supply device 失效
标题翻译：原料供应装置
公开(公告)号：US4545801A
公开(公告)日：1985-10-08
申请号：US577419
申请日：1984-02-06
申请人： Tetsuo Miyajiri , Toshimi Habasaki , Hiroshi Yokota , Tamio Tsurita , Motohiro Nakahara
发明人： Tetsuo Miyajiri , Toshimi Habasaki , Hiroshi Yokota , Tamio Tsurita , Motohiro Nakahara
IPC分类号： B01J4/00 , C03B37/014 , C03C17/02 , C23C16/448 , G05D7/00 , G05D9/12
CPC分类号： C03B37/01413 , B01J4/008 , C03C17/02 , C23C16/4482 , G05D7/00 , G05D9/12 , C03B2207/81 , C03B2207/86 , C03B2207/89 , C03B2207/90 , Y10T137/3127 , Y10T137/3133
摘要： A device is disclosed for supplying a glass raw material gas in the form of the mixed gas consisting of the glass raw material gas and the carrier gas to a vapor deposition device for producing a preform of an optical fiber, the supply device including a secondary raw material container having a pressurizable interior and provided adjacent to a main raw material container. The bottoms, or areas near the bottoms, of the two containers are interconnected via a pipe including at a mid portion thereof a switching valve and a device for adjusting the flow rate of the raw material liquid between the two containers. Liquid level detectors are provided in one or both containers to maintain the constant volume of the liquid raw material so as to provide a constant state inside the main raw material container. The operation of this device can easily be entirely automated.
摘要翻译：公开了一种用于将由玻璃原料气体和载气组成的混合气体的玻璃原料气体供给到用于制造光纤预制棒的气相沉积装置的装置，该装置包括二次生原料材料容器具有可加压的内部并邻近主要原料容器设置。两个容器的底部或底部附近的区域通过管道相互连接，该管道在其中部包括切换阀和用于调节两个容器之间的原料液体的流量的装置。在一个或两个容器中设置液位检测器，以维持液体原料的恒定体积，以便在主原料容器内提供恒定的状态。该设备的操作可以很容易地完全自动化。

3. 发明授权

US4801322A Method, apparatus and burner for fabricating an optical fiber preform 失效
标题翻译：用于制造光纤预制棒的方法，设备和燃烧器
公开(公告)号：US4801322A
公开(公告)日：1989-01-31
申请号：US54886
申请日：1987-05-27
申请人： Hiroyuki Suda , Shuichi Shibata , Motohiro Nakahara
发明人： Hiroyuki Suda , Shuichi Shibata , Motohiro Nakahara
IPC分类号： C03B37/014 , C03B37/018
CPC分类号： C03B37/014 , C03B37/0142 , C03B37/01446 , C03B2201/31 , C03B2207/06 , C03B2207/08 , C03B2207/20 , C03B2207/22 , C03B2207/24 , C03B2207/26 , C03B2207/40 , C03B2207/42 , C03B2207/50 , C03B2207/60 , C03B2207/62
摘要： In an optical fiber preform fabrication method having the steps of decomposing a glass raw material in a flame so that fine glass particles are produced; depositing the fine glass particles on a seed rod to form a porous preform; and consolidating the porous preform into a transparent optical fiber preform, use is made of a burner having a raw material supply orifice for supplying the glass raw material and a plurality of flame forming orifices deposed around the raw material supply orifice sequentially for forming a plurality of flames, respectively. The flame speed V.sub.k of a kth flame, the flame speed V.sub.k+1 of a (k+1)th flame surrounding outwardly of the kth flame and the flow speed Vm of the glass raw material are determined in a suitable manner. The glass raw material is supplied to the multi-flame produced by the burner in which the kth flame is positioned rearwardly of the (k+1)th flame to synthesize the fine glass particles.

4. 发明授权

US4419116A Process for producing optical fiber preform and apparatus therefor 失效
标题翻译：光纤预制棒的制造方法及其设备
公开(公告)号：US4419116A
公开(公告)日：1983-12-06
申请号：US329958
申请日：1981-12-11
申请人： Motohiro Nakahara , Naoki Yoshioka , Hiroshi Yokota , Tetsuo Miyajiri , Minoru Watanabe
发明人： Motohiro Nakahara , Naoki Yoshioka , Hiroshi Yokota , Tetsuo Miyajiri , Minoru Watanabe
IPC分类号： C03B37/018 , C03B37/014 , G02B6/00 , C03B19/00
CPC分类号： C03B37/0142 , C03B2207/62 , C03B2207/70
摘要： A process and apparatus for producing an optical fiber preform by oxidizing a gaseous glass forming material with a flame from a burner and depositing the resulting soot in a rod form are described, wherein two signal beams, supplied by splitting a light beam, are projected in a direction normal to the direction in which the preform grows and are directed into the space between the burner and the deposition face of the preform, and they are positioned so that one beam partially contacts the deposition face of the preform, while the other beam is directed to pass between the burner and the deposition face, and the distance between the burner and the deposition face is controlled such that the ratio of the intensity of the two beams passing through the space between the burner and the deposition face is held constant.
摘要翻译：描述了一种用于通过用来自燃烧器的火焰将气态玻璃形成材料氧化并以杆形式沉积所得到的烟灰来生产光纤预制件的方法和装置，其中通过分割光束提供的两个信号光束被投射在与预成型件生长方向垂直的方向并且被引导到燃烧器和预成型件的沉积面之间的空间中，并且它们被定位成使得一个梁部分地接触预成型件的沉积面，而另一个梁是被引导通过燃烧器和沉积面之间，并且控制燃烧器和沉积面之间的距离，使得通过燃烧器和沉积面之间的空间的两个光束的强度比保持恒定。

5. 发明授权

US4804247A Quartz glass optical fiber 失效
标题翻译：石英玻璃光纤
公开(公告)号：US4804247A
公开(公告)日：1989-02-14
申请号：US719952
申请日：1985-04-04
申请人： Michihisa Kyoto , Shuzo Suzuki , Minoru Watanabe , Motohiro Nakahara
发明人： Michihisa Kyoto , Shuzo Suzuki , Minoru Watanabe , Motohiro Nakahara
IPC分类号： C03C13/04 , G02B6/00 , G02B6/02 , G02B6/10 , C03C25/02 , G02B6/16
CPC分类号： C03C13/045 , G02B6/02 , Y10S65/16
摘要： A quartz optical fiber comprising a core having a higher refractive index and made of pure quartz containing fluorine and phosphorus pentoxide and a cladding having a lower refractive index, a weight ratio of fluorine and phosphorus pentoxide in the core being larger than 1 (one), which is substantially free from unstability of the glass structure.
摘要翻译： 1.一种石英光纤，其特征在于，具有折射率较高且由含有氟和五氧化二磷的纯石英制成的芯和折射率较低的包层，所述芯中氟和五氧化二磷的重量比大于1（1）其基本上没有玻璃结构的不稳定性。

6. 发明授权

US4618354A Method, apparatus and burner for fabricating an optical fiber preform 失效
标题翻译：用于制造光纤预制棒的方法，设备和燃烧器
公开(公告)号：US4618354A
公开(公告)日：1986-10-21
申请号：US705362
申请日：1985-02-25
申请人： Hiroyuki Suda , Shuichi Shibata , Motohiro Nakahara
发明人： Hiroyuki Suda , Shuichi Shibata , Motohiro Nakahara
IPC分类号： C03B37/014 , C03B37/07
CPC分类号： C03B37/014 , C03B37/0142 , C03B37/01446 , C03B2201/31 , C03B2207/06 , C03B2207/08 , C03B2207/20 , C03B2207/22 , C03B2207/24 , C03B2207/26 , C03B2207/40 , C03B2207/42 , C03B2207/50 , C03B2207/60 , C03B2207/62
摘要： In an optical fiber preform fabrication method having the steps of decomposing a glass raw material in a flame so that fine glass particles are produced; depositing the fine glass particles on a seed rod to form a porous preform; and consolidating the porous preform into a transparent optical fiber preform, use is made of a burner having a raw material supply orifice for supplying the glass raw material and a plurality of flame forming orifices disposed around the raw material supply orifice sequentially for forming a plurality of flames, respectively. The flame speed V.sub.k of a kth flame, the flame speed V.sub.k+1 of a (k+1)th flame surrounding outwardly of the kth flame and the flow speed Vm of the glass raw material are determined in a suitable manner. The glass raw material is supplied to the maluti-flame produced by the burner in which the kth flame is positioned rearwardly of the (k+1)th flame to synthesize the fine glass particles.
摘要翻译：在一种具有以下步骤的光纤预制件制造方法中，所述步骤是在玻璃原料中分解火焰从而产生精细的玻璃颗粒; 将细玻璃颗粒沉积在种棒上以形成多孔预型体; 并且将多孔预成型件固结成透明的光纤预制件，使用具有用于供应玻璃原料的原料供给孔和顺序地设置在原料供给孔周围的多个火焰形成孔的燃烧器，以形成多个火焰分别。以适当的方式确定第k个火焰的火焰速度Vk，第k个火焰周围的第（k + 1）个火焰的火焰速度Vk + 1和玻璃原料的流速Vm。将玻璃原料供给由第k个火焰位于第（k + 1）个火焰后方的燃烧器产生的火焰，以合成细微玻璃颗粒。

7. 发明授权

US06304687B1 Optical waveguide circuit, its manufacturing method and optical waveguide module having the optical waveguide circuit 有权
标题翻译：光波导电路，其制造方法和具有光波导电路的光波导模块
公开(公告)号：US06304687B1
公开(公告)日：2001-10-16
申请号：US09171020
申请日：1998-10-14
申请人： Yasuyuki Inoue , Akimasa Kaneko , Hiroshi Takahashi , Fumiaki Hanawa , Kuninori Hattori , Kenji Yokoyama , Senichi Suzuki , Shin Sumida , Katsunari Okamoto , Motohaya Ishii , Hiroaki Yamada , Takashi Yoshida , Koichi Arishima , Fumihiro Ebisawa , Motohiro Nakahara
发明人： Yasuyuki Inoue , Akimasa Kaneko , Hiroshi Takahashi , Fumiaki Hanawa , Kuninori Hattori , Kenji Yokoyama , Senichi Suzuki , Shin Sumida , Katsunari Okamoto , Motohaya Ishii , Hiroaki Yamada , Takashi Yoshida , Koichi Arishima , Fumihiro Ebisawa , Motohiro Nakahara
IPC分类号： G02B612
CPC分类号： G02B6/12011 , G02B6/12014 , G02B6/12023 , G02B6/12028
摘要： In a light waveguide circuit including a plurality of waveguides having different length, a material (10) having a temperature coefficient of a refractive index including a symbol different from that of a temperature coefficient of an effective refractive index of the waveguide (4) is charged into a groove (12) formed by removing the upper clad and the core from the waveguide (4), or a groove (12) formed by removing the upper clad, the core and the lower clad from the waveguide (4). A difference in length of the removed portions between adjacent waveguides is proportional to a difference in length of the waveguides which were not removed and remained.
摘要翻译：在包括具有不同长度的多个波导的光波导电路中，具有包括不同于波导（4）的有效折射率的温度系数的符号的折射率的温度系数的材料（10）被充电通过从波导（4）去除上包层和芯而形成的凹槽（12），或通过从波导（4）去除上包层，芯和下包层而形成的凹槽（12）。相邻波导之间的去除部分的长度差异与未被去除和保留的波导的长度差成比例。

8. 发明授权

US4812155A Method for production of glass preform for optical fibers 失效
标题翻译：光纤玻璃预制棒的生产方法
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℃。

9. 发明授权

US4421540A System for producing an optical fiber preform with gas volume control 失效
标题翻译：用于生产具有气体体积控制的光纤预制件的系统
公开(公告)号：US4421540A
公开(公告)日：1983-12-20
申请号：US329915
申请日：1981-12-11
申请人： Motohiro Nakahara , Tetsuo Miyajiri , Naoki Yoshioka , Toru Kuwahara
发明人： Motohiro Nakahara , Tetsuo Miyajiri , Naoki Yoshioka , Toru Kuwahara
IPC分类号： C03B37/018 , C03B37/014 , G02B6/00 , C03B19/00 , C03B37/07 , C03C23/00
CPC分类号： C03B37/0144
摘要： A process for producing an optical fiber preform in a muffle furnace by hydrolyzing a gaseous glass forming material with a flame from an oxyhydrogen burner and depositing the resulting soot in a rod shape and an apparatus therefor are described, wherein a gas is supplied to the muffle furnace other than from said burner, and the volume supply of said gas is held constant by controlling the amount of a control gas supplied into an intermediate portion of an exhaust pipe through which the gases formed in the muffle furnace and the fine glass particles that do not deposit in a rod shape are discharged.
摘要翻译：一种用于通过用氢氧化物燃烧器用火焰水解气态玻璃形成材料并将所得烟炱沉积成棒状的装置来制造在马弗炉中的光纤预制件的方法及其设备，其中气体被供应到马弗炉并且通过控制供给到马弗炉中形成的气体的排气管的中间部分的控制气体的量和所执行的细玻璃颗粒，所述气体的体积供应量保持恒定没有放置在棒状的形状被排出。

10. 发明授权

US4414012A Fabrication methods of doped silica glass and optical fiber preform by using the doped silica glass 失效
标题翻译：通过掺杂石英玻璃制备掺杂石英玻璃和光纤预制棒的方法
公开(公告)号：US4414012A
公开(公告)日：1983-11-08
申请号：US300296
申请日：1981-09-08
申请人： Shoichi Suto , Hiroyuki Suda , Fumiaki Hanawa , Motohiro Nakahara , Nobuo Inagaki
发明人： Shoichi Suto , Hiroyuki Suda , Fumiaki Hanawa , Motohiro Nakahara , Nobuo Inagaki
IPC分类号： C03B20060101 , C03B19/10 , C03B37/014 , C03C3/06 , C03C13/04 , C03B19/06 , C03B20/00
CPC分类号： C03B19/106 , C03B19/102 , C03B37/01413 , C03B37/0142 , C03B37/01486 , C03C13/045 , C03C3/06 , C03B2203/24 , C03B2203/26 , C03B2207/06 , C03B2207/20 , C03B2207/28 , C03B2207/50 , C03B2207/64 , C03B2207/87 , C03C2201/30 , C03C2201/40 , C03C2203/40
摘要： Manufacturing method of doped silica glass suitable for optical fiber wherein quartz powder or SiO.sub.2 glass fine particles are exposed to a gas for producing the doped silica glass containing SiCl.sub.4, a gaseous additive and water vapor (H.sub.2 O) to add the dopant to the glass body, and then the resulting glass body is fused at a high temperature, thereby producing a transparent doped silica glass in which the production of the glass particles, the addition of the dopant, and the vitrification of the glass body are carried out by separate steps under respective suitable conditions. The manufacturing speed is remarkably increased because of the separate steps. The content of the dopant is not limited, but can be adjusted with any desired amount by changing the reaction time of dissolution. Dopant components like PbO.sub.2, SnO.sub.2, ZnO which were typically not added to the glass body can now be added thereto. Also, a method of manufacturing an optical fiber preform is disclosed wherein the doped silica glass is deposited and fused on a starting material which is inclined by an angle within a range of 5.degree.-90.degree. with respect to a blow-off direction of the flow of the doped silica glass to form a transparent doped silica glass body having a uniform outer diameter and a uniform boundary surface at a high synthesizing speed. This latter method aids mass production of optical fibers at low cost.
摘要翻译：适用于光纤的掺杂二氧化硅玻璃的制造方法，其中将石英粉末或SiO 2玻璃微粒暴露于用于生产含SiCl4，气态添加剂和水蒸汽（H 2 O）的掺杂石英玻璃的气体中以将掺杂剂添加到玻璃体中，然后将所得的玻璃体在高温下熔融，由此制备透明掺杂的石英玻璃，其中玻璃颗粒的产生，掺杂剂的添加和玻璃体的玻璃化在各自的步骤下通过各自的步骤进行适合条件。由于单独的步骤，制造速度显着增加。掺杂剂的含量没有限制，但可以通过改变溶解的反应时间以任何所需的量进行调节。现在可以向其中加入通常不加入到玻璃体中的掺杂剂组分如PbO 2，SnO 2，ZnO。此外，公开了一种制造光纤预制棒的方法，其中将掺杂的石英玻璃沉积并熔合在起始材料上，所述起始材料相对于所述材料的吹出方向倾斜5°-90°的范围内的角度掺杂石英玻璃的流动，以形成具有均匀外径和高合成速度的均匀边界表面的透明掺杂石英玻璃体。后一种方法有助于以低成本大量生产光纤。

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