公开(公告)号：US4414008A

公开(公告)日：1983-11-08

申请号：US329919

申请日：1981-12-11

申请人： Takao Edahiro ,  Tetsuo Miyajiri ,  Hiroshi Yokota ,  Toru Kuwahara

发明人： Takao Edahiro ,  Tetsuo Miyajiri ,  Hiroshi Yokota ,  Toru Kuwahara

IPC分类号： C03B37/018 ,  C03B37/014 ,  G02B6/00 ,  C03B19/00 ,  C03B37/07

CPC分类号： C03B37/0144

摘要： A process for producing a porous optical fiber preform by hydrolyzing a gaseous glass forming material with a flame from an oxyhydrogen burner and depositing the resulting soot in a rod form in a muffle furnace is described, wherein the muffle furnace is supplied with a gas other than that from the oxyhydrogen burner, and said gas is maintained at a constant temperature.

摘要翻译： 描述了一种通过用氢氧化物燃烧器用火焰水解气态玻璃形成材料并在马弗炉中将棒状形成的烟灰沉积在马弗炉中来生产多孔光纤预型体的方法，其中马弗炉中提供除了 来自氢氧燃烧器，并且所述气体保持在恒定温度。

公开(公告)号：US4338111A

公开(公告)日：1982-07-06

申请号：US218226

申请日：1980-12-19

申请人： Takao Edahiro ,  Michihisa Kyoto ,  Gotaro Tanaka ,  Toru Kuwahara

发明人： Takao Edahiro ,  Michihisa Kyoto ,  Gotaro Tanaka ,  Toru Kuwahara

IPC分类号： C03B37/014 ,  G02B6/00 ,  C03B19/06 ,  C03B32/00

CPC分类号： C03B37/01446 ,  Y10S65/90

摘要： A process for producing a preform for glass fiber for optical transmission by heating supply gases to form fine particles that are deposited on a rotating starter member to form an aggregate of fine glass particles which are then sintered to give a transparent vitreous material, characterized by a first heating stage wherein the aggregate of fine glass particles is sintered by increasing the temperature at a constant rate in a gaseous atmosphere which contains a halogen or halide and which has dehydrating activity, followed by holding the aggregate for a given period of time at a temperature in the range that causes considerable shrinkage of the aggregate, and a second heating stage where said aggregate is heated to the vitrifying temperature.

摘要翻译： 一种用于通过加热供应气体来生产用于光学透射的玻璃纤维的预成型件的方法，以形成沉积在旋转起动器构件上的细颗粒，以形成细玻璃颗粒的聚集体，然后烧结以形成透明玻璃质材料，其特征在于 第一加热阶段，其中通过在含有卤素或卤化物并具有脱水活性的气体气氛中以恒定速率升高温度来烧结微细玻璃颗粒的聚集体，然后将聚集体在一定时间内保持在温度 在导致骨料相当收缩的范围内，以及将所述骨料加热至玻璃化温度的第二加热阶段。

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。

公开(公告)号：US4406680A

公开(公告)日：1983-09-27

申请号：US344583

申请日：1982-02-01

申请人： Takao Edahiro ,  Gotaro Tanaka ,  Toru Kuwahara ,  Masaaki Yoshida

发明人： Takao Edahiro ,  Gotaro Tanaka ,  Toru Kuwahara ,  Masaaki Yoshida

IPC分类号： C03B37/018 ,  C03B8/04 ,  C03B20/00 ,  C03B37/014 ,  C23C16/40 ,  G02B6/00 ,  C03B19/06

CPC分类号： C03B37/0142 ,  C23C16/401 ,  C03B2207/06 ,  C03B2207/20 ,  C03B2207/36

摘要： A process for producing high-purity silica glass wherein glass-forming chlorides, hydrogen gas, oxygen and an inert gas are supplied from a glass burner, the chlorides are decomposed by flame oxidation to form fine grains of glass which are deposited on a starting member and the glass deposit is sintered to provide a transparent vitreous substance, the volume ratio of oxygen gas to the sum of the chlorides and hydrogen gas being greater than about 0.6, preferably greater than about 1.0, and less than about 20.

摘要翻译： 由玻璃燃烧器供给形成玻璃的氯化物，氢气，氧气和惰性气体的高纯度二氧化硅玻璃的方法，通过火焰氧化分解氯化物，形成微小的玻璃晶粒，沉积在起始构件上 并且玻璃沉积物被烧结以提供透明的玻璃质物质，氧气与氯化物和氢气之和的体积比大于约0.6，优选大于约1.0且小于约20。

公开(公告)号：US4525027A

公开(公告)日：1985-06-25

申请号：US648334

申请日：1984-09-05

申请人： Katsunari Okamoto ,  Takao Edahiro ,  Akio Kawana ,  Tetsuo Miya

发明人： Katsunari Okamoto ,  Takao Edahiro ,  Akio Kawana ,  Tetsuo Miya

IPC分类号： G02B6/00 ,  G02B6/02 ,  G02B6/10 ,  G02B5/172

CPC分类号： G02B6/02238

摘要： In a single mode optical fiber comprising a core made of glass and a cladding surrounding the core and made of glass, when a difference .DELTA. between refractive indices n.sub.1 and n.sub.2 of the core and cladding is expressed by (n.sub.1 -n.sub.2)/(n.sub.1).times.100%, the refractive indices n.sub.1 and n.sub.2 are determined to satisfy a relation 1.0

摘要翻译： 在由（n1-n2）/（n1）表示由芯和由包层围成的由玻璃制成的芯的单模光纤中，当芯和包层的折射率n1和n2之间的差DELTA表示为（n1-n2）/（n1） x100％，折射率n1和n2被确定为满足1.0

公开(公告)号：US3950073A

公开(公告)日：1976-04-13

申请号：US472758

申请日：1974-05-23

申请人： Masaharu Horiguchi ,  Takao Edahiro ,  Kunio Masuno ,  Tadashi Miyashita ,  Shiro Takahashi

发明人： Masaharu Horiguchi ,  Takao Edahiro ,  Kunio Masuno ,  Tadashi Miyashita ,  Shiro Takahashi

IPC分类号： G02B6/00 ,  C03B37/027 ,  C03C13/04 ,  G02B6/02 ,  G02B6/032 ,  G02B6/04 ,  G02B6/44 ,  G02B5/14

CPC分类号： G02B6/032 ,  C03B37/027 ,  C03C13/04 ,  C03C13/045 ,  C03C13/046 ,  G02B6/04 ,  G02B6/4402 ,  C03B2203/10 ,  C03B2203/14 ,  C03B2203/32 ,  C03B2203/34

摘要： An eccentric core optical waveguide comprising at least one glass core having relatively large refraction index disposed in an outer cylindrical glass jacket having larger diameter than that of the glass core and relatively small refraction index. The one or more glass core being so arranged as to made tangential contact with the inner wall of the glass jacket or a dielectric thin film coated inside the jacket at a small area. The space between the glass core and the outer glass jacket or said thin film is filled by air.

公开(公告)号：US5033815A

公开(公告)日：1991-07-23

申请号：US523680

申请日：1990-04-27

申请人： Takao Edahiro ,  Shiro Kurosaki ,  Minoru Watanabe

发明人： Takao Edahiro ,  Shiro Kurosaki ,  Minoru Watanabe

IPC分类号： C03B37/014 ,  C03B37/018 ,  C03C13/04 ,  G02B6/44 ,  G02B6/00

CPC分类号： G02B6/4492 ,  C03B37/014 ,  C03B37/018 ,  C03C13/045 ,  C03B2201/02 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2203/22

摘要： An optical transmission fiber comprising (1) a core of high refractive index composed of SiO.sub.2 -based glass containing at least one of GeO.sub.2, As.sub.2 O.sub.3, Sb.sub.2 O.sub.5, SnO.sub.2, TiO.sub.2, PbO and Bi.sub.2 O.sub.3, (2) a clad of low refractive index composed of SiO.sub.2 -based glass containing at least one of F, F/B.sub.2 O.sub.3 and F/P.sub.2 O.sub.5, and (3) an outermost jacket layer composed of SiO.sub.2 and/or SiO.sub.2 -based glass containing at least one of Al.sub.2 O.sub.3, TiO.sub.2, ZrO.sub.2 and HfO.sub.2.

公开(公告)号：US4372647A

公开(公告)日：1983-02-08

申请号：US192704

申请日：1980-10-01

申请人： Katsunari Okamoto ,  Takao Edahiro ,  Akio Kawana ,  Tetsuo Miya

发明人： Katsunari Okamoto ,  Takao Edahiro ,  Akio Kawana ,  Tetsuo Miya

IPC分类号： C03C13/04 ,  G02B5/14

CPC分类号： G02B6/03611 ,  C03C13/045 ,  G02B6/03627 ,  G02B6/02233

摘要： In a single mode optical fiber of the type comprising a core, a cladding surrounding the core and an intermediate layer, the refractive indices n1, n2 and n3 respectively of the core, the cladding and the intermediate layer are selected such that the following relations are satisfied0.5 .DELTA.2>-1.0where ##EQU1##

摘要翻译： 在包括芯，围绕芯的包层和中间层的单模光纤中，选择芯，包层和中间层的折射率n1，n2和n3，使得以下关系是 满足0.5 DELTA 2> -1.0其中

公开(公告)号：US4838916A

公开(公告)日：1989-06-13

申请号：US115606

申请日：1987-10-29

申请人： Takao Edahiro ,  Tetsuo Miya ,  Yutaka Sasaki ,  Katusunari Okamoto ,  Masao Kawachi

发明人： Takao Edahiro ,  Tetsuo Miya ,  Yutaka Sasaki ,  Katusunari Okamoto ,  Masao Kawachi

IPC分类号： C03B20/00 ,  C03B37/012 ,  C03B37/027 ,  C03C13/04 ,  G02B6/00 ,  G02B6/024 ,  G02B6/10

CPC分类号： C03B37/02709 ,  C03B37/01217 ,  G02B6/02042 ,  G02B6/105 ,  C03B2203/224 ,  C03B2203/31 ,  C03B2205/12

摘要： A single-polarization single-mode optical fiber comprises a core made of silica glass, a clad surrounding the core and made of silica glass having a smaller index of refraction than the glass comprising the core, a pair of stress applying members symmetrically disposed on the clad and made of silica glass having different thermal expansion coefficient from that of the clad, spacers interposed between the stress applying members and made of silica glass having substantially the same thermal expansion coefficient as the clad, and a jacket surrounding the spacers, stress applying members. The jacket is also made of silica glass and has a smaller expansion coefficient than the stress applying members. The optical fiber of this invention has an excellent polarization preserving characteristic, low loss, long length, and stable characteristics.

摘要翻译： 单极化单模光纤包括由石英玻璃制成的芯，包围芯并由石英玻璃制成的包层比包含芯的玻璃具有更小的折射率的折射率的一对应力施加部件 包覆并且由包层的热膨胀系数不同的二氧化硅玻璃制成，夹在应力施加构件之间的隔离物和具有与包层基本相同的热膨胀系数的石英玻璃制成的隔离物和围绕隔离物的护套，应力施加构件 。 护套也由石英玻璃制成，并且具有比应力施加构件更小的膨胀系数。 本发明的光纤具有优异的偏振保持特性，低损耗，长长度和稳定特性。

公开(公告)号：US4528010A

公开(公告)日：1985-07-09

申请号：US584968

申请日：1984-02-29

申请人： Takao Edahiro ,  Nobuo Inagaki ,  Shiro Kurosaki

发明人： Takao Edahiro ,  Nobuo Inagaki ,  Shiro Kurosaki

IPC分类号： C01B33/187 ,  C03B8/02 ,  C03B37/016 ,  C03C3/04 ,  C03C3/06 ,  C03C23/00 ,  G02B6/00 ,  C03B19/06

CPC分类号： C03C23/008 ,  C03B37/016 ,  C03C3/06 ,  C03B2201/30 ,  C03B2201/50 ,  C03C2201/50 ,  C03C2203/24 ,  C03C2203/36 ,  Y10S65/901

摘要： A process for producing an optical glass product having a predetermined distribution of refractive index in the interior of the product is disclosed. The process comprises the steps of:(a) preparing an aqueous silicate solution containing from about 0.1 to about 0.6 mol/liter of Si (as SiO.sub.2) comprising silicic acid and at least one element selected from the group consisting of rubidium, thallium and cesium;(b) mixing the silicate solution with an acidic aqueous solution, and letting the two solutions react with each other for a period of time sufficient for polymerization to produce a porous gelled product wherein the silica particles are agglomerated;(c) leaching the gelled product with a liquid selected from the group consisting of water, a weakly acidic aqueous solution, an aqueous solution having an alkali metal salt dissolved therein and an aqueous solution of organic matter capable of dissolving Rb.sub.2 O, Cs.sub.2 O, or Tl.sub.2 O, unitl the center of the product starts to dissolve; and(d) drying the leached product in a predetermined atmosphere, and further heating the partially leached gelled product at a temperature sufficiently high to eliminate the particulate material but lower than the melting point of the silica.

摘要翻译： 公开了一种在产品内部具有预定折射率分布的光学玻璃制品的制造方法。 该方法包括以下步骤：（a）制备含有约0.1至约0.6mol /升包含硅酸的Si（作为SiO 2）和选自铷，铊和铯中的至少一种元素的硅酸盐水溶液 ; （b）将硅酸盐溶液与酸性水溶液混合，并使两种溶液彼此反应一段足以聚合的时间以产生多孔凝胶产物，其中二氧化硅颗粒凝聚; （c）用选自水，弱酸性水溶液，溶解有碱金属盐的水溶液和能够溶解Rb 2 O，Cs 2 O或T 1/2的有机物水溶液的液体浸出凝胶状产品 ，产品中心开始溶解; 和（d）在预定的气氛中干燥浸出的产品，并且在足够高的温度下进一步加热部分浸出的凝胶产品以消除颗粒材料但低于二氧化硅的熔点。