公开(公告)号：US20170144917A1

公开(公告)日：2017-05-25

申请号：US15297534

申请日：2016-10-19

Applicant: Corning Incorporated

Inventor： Sezhian Annamalai ,  Steven Bruce Dawes ,  Carlos Alberto Duran ,  Kenneth Edward Hrdina ,  William Rogers Rosch ,  Bryan Ray Wheaton

IPC: C03C3/089 ,  C03C4/00 ,  C03B25/02

CPC classification number: C03C3/089 ,  C03B19/14 ,  C03B25/02 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/10 ,  C03B2201/42 ,  C03C3/06 ,  C03C4/00 ,  C03C23/007 ,  C03C2201/10 ,  C03C2201/12 ,  C03C2201/23 ,  C03C2201/42 ,  C03C2203/54

Abstract: A doped silica-titania (“DST”) glass article that includes a glass article having a glass composition comprising a silica-titania base glass containing titania at 7 to 14 wt. % and a balance of silica, and a dopant selected from the group consisting of (a) F at 0.7 to 1.5 wt. %, (b) B2O3 at 1.5 to 5 wt. %, (c) OH at 1000 to 3000 ppm, and (d) B2O3 at 0.5 to 2.5 wt. % and OH at 100 to 1400 ppm. The glass article has an expansivity slope of less than about 1.3 ppb/K2 at 20° C. For DST glass articles doped with F or B2O3, the OH level can be held to less than 10 ppm, or less than 100 ppm, respectively. In many aspects, the DST glass articles are substantially free of titania in crystalline form.

公开(公告)号：US09575245B2

公开(公告)日：2017-02-21

申请号：US14943190

申请日：2015-11-17

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Yoshiaki Tamura ,  Tetsuya Haruna ,  Yoshihiro Saito ,  Yuki Kawaguchi ,  Masaaki Hirano

IPC: G02B6/036 ,  G02B6/02 ,  C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  C03C3/06 ,  C03C13/04

CPC classification number: G02B6/02 ,  C03B37/01211 ,  C03B37/014 ,  C03B37/01807 ,  C03B37/01861 ,  C03B37/01892 ,  C03B2201/06 ,  C03B2201/07 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2203/26 ,  C03B2205/40 ,  C03C3/06 ,  C03C13/045 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/50 ,  C03C2203/40

Abstract: An optical fiber containing an alkali metal and capable of reducing Rayleigh scattering loss is provided. An optical fiber has a core and a cladding made of silica glass and enclosing the core. The cladding contains fluorine and has a refractive index lower than the refractive index of the core. The core contains first group dopants selected from the group of Na element, K element, or a compound thereof at an average concentration of 0.2 ppm or more and 10 ppm or less. The core also contains second group dopants for reducing the viscosity of silica glass and having a diffusion coefficient of 1×10−12 cm2/s or more and smaller than the diffusion coefficient of the first group dopants, by an average concentration of 0.2 ppm or more at a temperature of 2000° C. to 2300° C.

Abstract translation: 提供含有碱金属并能够降低瑞利散射损耗的光纤。 光纤具有由石英玻璃制成的芯和包层，并且包围芯。 包层含氟，折射率低于芯的折射率。 核心包含平均浓度为0.2ppm以上且10ppm以下的选自Na元素，K元素或其化合物的第一族掺杂剂。 该芯还含有第二组掺杂剂，用于降低石英玻璃的粘度，并且扩散系数为1×10-12cm2 / s以上且小于第一组掺杂剂的扩散系数，平均浓度为0.2ppm或 更高温度在2000°C至2300°C

公开(公告)号：US09145325B2

公开(公告)日：2015-09-29

申请号：US14304530

申请日：2014-06-13

Applicant: SHIN-ETSU QUARTZ PRODUCTS CO., LTD.

Inventor： Shigeru Yamagata ,  Tomomi Usui

IPC: C03B19/09 ,  C30B15/10 ,  C30B29/06 ,  C30B35/00

CPC classification number: C03B19/095 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/32 ,  C30B15/10 ,  C30B29/06 ,  C30B35/002 ,  Y10T428/131 ,  Y10T428/1317 ,  Y10T428/2982

Abstract: A method for producing a silica container having a rotational symmetry includes forming a preliminarily molded article by feeding a powdered substrate's raw material to an inner wall of an outer frame having aspiration holes with rotating the frame, and forming a silica substrate. The preliminarily molded article is aspirated from an outer peripheral side with controlling a humidity inside the outer frame by ventilating gases present in the outer frame with charging from inside the preliminarily molded article a gas mixture comprised of an O2 gas and an inert gas and made below a prescribed dew-point temperature by dehumidification, and at the same time heated from inside the preliminarily molded article by a discharge-heat melting method with carbon electrodes, thereby making an outer peripheral part of the preliminarily molded article to a sintered body while an inner peripheral part to a fused glass body.

Abstract translation: 制造具有旋转对称性的二氧化硅容器的方法包括通过将粉末状基材的原料供给到具有旋转框架的具有抽吸孔的外框架的内壁，并形成二氧化硅基板来形成预成型品。 从外周侧抽吸预成型品，通过从外部框架内部充填从O 2气体和惰性气体构成的气体混合物从外部框架内的气体通风来控制外框内的湿度， 通过除湿规定的露点温度，同时用碳电极通过放电加热熔融法从预成型体内部加热，由此使预成型体的外周部分成为烧结体，而内部 周边部分为熔融玻璃体。

公开(公告)号：US09056785B2

公开(公告)日：2015-06-16

申请号：US13932685

申请日：2013-07-01

Applicant: Shin-Etsu Chemical Co., Ltd.

Inventor： Shigeru Maida ,  Hisatoshi Otsuka

IPC: C03C3/06 ,  C03C3/04 ,  B29C33/38 ,  C03B20/00 ,  C03B19/14

CPC classification number: C03C3/04 ,  B29C33/38 ,  C03B19/1453 ,  C03B20/00 ,  C03B32/00 ,  C03B2201/07 ,  C03B2201/21 ,  C03B2201/23 ,  C03C3/06 ,  C03C2201/21 ,  C03C2201/23 ,  C03C2203/40 ,  C03C2203/52 ,  Y02P40/57

Abstract: Synthetic quartz glass is prepared by subjecting a silicon-providing feedstock to flame hydrolysis in oxyhydrogen flame, depositing silica fine particles on a rotating quartz glass target while concurrently melting and vitrifying them, thereby forming a synthetic quartz glass ingot, shaping, annealing, and effecting dehydrogenation treatment at a temperature of at least 600° C. and a pressure of up to 5 Pa for a holding time of at least 12 hours. The synthetic quartz glass has a high helium gas permeability and is suited for forming nanoimprint molds.

Abstract translation: 合成石英玻璃通过使供硅原料在氢氧焰中进行火焰水解，在旋转的石英玻璃靶上沉积二氧化硅细颗粒同时熔化和玻璃化，从而形成合成石英玻璃锭，成型，退火和实现 在至少600℃的温度和至多5Pa的压力下进行至少12小时的保持时间的脱氢处理。 合成石英玻璃具有高氦气渗透性，适用于形成纳米压印模具。

公开(公告)号：US09036972B2

公开(公告)日：2015-05-19

申请号：US14127266

申请日：2012-11-16

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Yoshiaki Tamura ,  Tetsuya Haruna ,  Masaaki Hirano

IPC: G02B6/036 ,  B29B7/00 ,  C03B37/02 ,  C03B37/018 ,  C03B37/027 ,  C03B37/014 ,  C03C13/04

CPC classification number: G02B6/03622 ,  C03B37/01413 ,  C03B37/018 ,  C03B37/01807 ,  C03B37/01815 ,  C03B37/027 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/23 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/34 ,  C03B2203/36 ,  C03C13/04 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/23 ,  C03C2201/50 ,  C03C2203/44 ,  C03C2203/46 ,  G02B6/02019 ,  G02B6/02242 ,  G02B6/02266 ,  G02B6/036 ,  G02B6/03611 ,  G02B6/03627 ,  G02B6/03694 ,  Y02P40/57 ,  Y10T428/2964

Abstract: An easily producible optical fiber preform which is drawn to an optical fiber having a core containing a sufficient concentration of alkali metal is provided. An optical fiber preform 10 is composed of silica-based glass and includes a core portion 20 and a cladding portion 30. The core portion 20 includes a first core portion 21 including a central axis and a second core portion 22 disposed on the perimeter of the first core portion 21. The cladding portion 30 includes a first cladding portion 31 disposed on the perimeter of the second core portion 22 and a second cladding portion 32 disposed on the perimeter of the first cladding portion 31. The core portion 20 contains an alkali metal at an average concentration of 5 atomic ppm or more. The concentration of the OH group in the perimeter portion of the first cladding portion 31 is 200 mol ppm or more.

Abstract translation: 提供了一种易于生产的光纤预制件，其被拉伸到具有含有足够浓度的碱金属的芯的光纤。 光纤预制件10由二氧化硅系玻璃构成，包括芯部20和包覆部30.芯部20具有包括中心轴的第一芯部21和配置在第二芯部22的周边的第二芯部22。 第一芯部21.包层部分30包括设置在第二芯部22的周边上的第一包层部分31和设置在第一包层部分31的周边上的第二包层部分32.芯部分20含有碱金属 平均浓度为5原子ppm以上。 第一包层部31的周缘部的OH基浓度为200摩尔ppm以上。

公开(公告)号：US20150098682A1

公开(公告)日：2015-04-09

申请号：US14569987

申请日：2014-12-15

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Yoshiaki TAMURA ,  Tetsuya HARUNA ,  Masaaki HIRANO

IPC: G02B6/036 ,  C03C13/04 ,  C03B37/027

CPC classification number: G02B6/03622 ,  C03B37/01413 ,  C03B37/018 ,  C03B37/01807 ,  C03B37/01815 ,  C03B37/027 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/23 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/34 ,  C03B2203/36 ,  C03C13/04 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/23 ,  C03C2201/50 ,  C03C2203/44 ,  C03C2203/46 ,  G02B6/02019 ,  G02B6/02242 ,  G02B6/02266 ,  G02B6/036 ,  G02B6/03611 ,  G02B6/03627 ,  G02B6/03694 ,  Y02P40/57 ,  Y10T428/2964

Abstract: An easily producible optical fiber preform which is drawn to an optical fiber having a core containing a sufficient concentration of alkali metal is provided. An optical fiber preform 10 is composed of silica-based glass and includes a core portion 20 and a cladding portion 30. The core portion 20 includes a first core portion 21 including a central axis and a second core portion 22 disposed on the perimeter of the first core portion 21. The cladding portion 30 includes a first cladding portion 31 disposed on the perimeter of the second core portion 22 and a second cladding portion 32 disposed on the perimeter of the first cladding portion 31. The core portion 20 contains an alkali metal at an average concentration of 5 atomic ppm or more. The concentration of the OH group in the perimeter portion of the first cladding portion 31 is 200 mol ppm or more.

Abstract translation: 提供了一种易于生产的光纤预制件，其被拉伸到具有含有足够浓度的碱金属的芯的光纤。 光纤预制件10由二氧化硅系玻璃构成，包括芯部20和包覆部30.芯部20具有包括中心轴的第一芯部21和配置在第二芯部22的周边的第二芯部22。 第一芯部21.包层部分30包括设置在第二芯部22的周边上的第一包层部分31和设置在第一包层部分31的周边上的第二包层部分32.芯部分20含有碱金属 平均浓度为5原子ppm以上。 第一包层部31的周缘部的OH基浓度为200摩尔ppm以上。

公开(公告)号：US20150027170A1

公开(公告)日：2015-01-29

申请号：US14383197

申请日：2012-12-17

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Tetsuya Haruna ,  Masaaki Hirano ,  Yoshiaki Tamura

IPC: C03B37/027 ,  C03B37/025

CPC classification number: C03B37/027 ,  C03B37/0253 ,  C03B2201/07 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2203/02 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/26 ,  C03B2205/40 ,  C03B2205/42 ,  C03B2205/60 ,  C03B2205/72 ,  C03C13/045 ,  C03C25/1061

Abstract: Provided is a method for producing an optical fiber having low attenuation and including a core that contains an alkali metal element. An optical fiber preform that includes a core part and a cladding part is drawn with a drawing apparatus 1 to form an optical fiber 30, the core part having an average concentration of an alkali metal element of 5 atomic ppm or more and the cladding part containing fluorine and chlorine. The optical fiber includes a glass portion and resin coating portion and the glass portion is under residual stress that is a compressive stress of 130 MPa or less. During the drawing, the time during which an individual position of the optical fiber preform is maintained at 1500° C. or higher is 110 minutes or less.

Abstract translation: 提供一种具有低衰减的光纤的制造方法，其包含含有碱金属元素的芯。 包括核心部分和包层部分的光纤预制棒被拉伸装置1拉伸以形成光纤30，芯部的碱金属元素的平均浓度为5原子ppm以上，包层部分含有 氟和氯。 光纤包括玻璃部分和树脂涂覆部分，并且玻璃部分处于130MPa或更小的压缩应力的残余应力。 在拉伸过程中，将光纤预制件的单个位置保持在1500℃以上的时间为110分钟以下。

公开(公告)号：US20140290308A1

公开(公告)日：2014-10-02

申请号：US14304530

申请日：2014-06-13

Applicant: SHIN-ETSU QUARTZ PRODUCTS CO., LTD.

Inventor： Shigeru YAMAGATA ,  Tomomi USUI

IPC: C03B19/09

CPC classification number: C03B19/095 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/32 ,  C30B15/10 ,  C30B29/06 ,  C30B35/002 ,  Y10T428/131 ,  Y10T428/1317 ,  Y10T428/2982

Abstract: A method for producing a silica container having a rotational symmetry includes forming a preliminarily molded article by feeding a powdered substrate's raw material to an inner wall of an outer frame having aspiration holes with rotating the frame, and forming a silica substrate. The preliminarily molded article is aspirated from an outer peripheral side with controlling a humidity inside the outer frame by ventilating gases present in the outer frame with charging from inside the preliminarily molded article a gas mixture comprised of an O2 gas and an inert gas and made below a prescribed dew-point temperature by dehumidification, and at the same time heated from inside the preliminarily molded article by a discharge-heat melting method with carbon electrodes, thereby making an outer peripheral part of the preliminarily molded article to a sintered body while an inner peripheral part to a fused glass body.

Abstract translation: 制造具有旋转对称性的二氧化硅容器的方法包括通过将粉末状基材的原料供给到具有旋转框架的具有抽吸孔的外框架的内壁，并形成二氧化硅基板来形成预成型品。 从外周侧抽吸预成型品，通过从外部框架内部充填从O 2气体和惰性气体构成的气体混合物从外部框架内的气体通风来控制外框内的湿度， 通过除湿规定的露点温度，同时用碳电极通过放电加热熔融法从预成型体内部加热，由此使预成型品的外周部分成为烧结体，而内部 周边部分为熔融玻璃体。

公开(公告)号：US08635886B2

公开(公告)日：2014-01-28

申请号：US13558698

申请日：2012-07-26

Applicant: Tetsuji Ueda ,  Michinari Ohuchi ,  Hiroyuki Nishimura ,  Akira Fujinoki ,  Masahiro Nakatsuka ,  Hidetsugu Yoshida

Inventor： Tetsuji Ueda ,  Michinari Ohuchi ,  Hiroyuki Nishimura ,  Akira Fujinoki ,  Masahiro Nakatsuka ,  Hidetsugu Yoshida

IPC: C03B37/00 ,  C03B20/00

CPC classification number: C03B19/1438 ,  C03B19/1453 ,  C03B2201/07 ,  C03B2201/23 ,  C03B2201/40 ,  C03C3/06 ,  C03C4/0071 ,  C03C4/085 ,  C03C4/12 ,  C03C23/0095 ,  C03C2201/23 ,  C03C2201/40 ,  C03C2203/44

Abstract: It is an object of the present invention to provide a copper-containing silica glass which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength of 400 nm or less, and which is excellent in long term stability even in the high output use. The copper-containing silica glass is made to have copper of from 5 wtppm to 200 wtppm, which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength ranging from 160 nm to 400 nm, and in which an internal transmittance per 2.5 mm thickness at a wavelength of 530 nm is 95% or more.

Abstract translation: 本发明的目的是提供一种在400nm以下的紫外线照射下发射波长范围为520nm〜580nm的荧光的含铜石英玻璃，其为 即使在高产量使用方面，长期稳定性也优异。 含铜二氧化硅玻璃被制成具有5重量ppm至200重量ppm的铜，其在波长范围为160nm至400nm的紫外线照射下发射波长范围为520nm至580nm的峰值的荧光 nm，并且其中在波长530nm处每2.5mm厚的内部透射率为95％以上。

公开(公告)号：US08268740B2

公开(公告)日：2012-09-18

申请号：US12364083

申请日：2009-02-02

Applicant: Richard Michael Fiacco ,  Kenneth Edward Hrdina ,  Rostislav Radievich Khrapko ,  Lisa Anne Moore ,  Charlene Marie Smith

Inventor： Richard Michael Fiacco ,  Kenneth Edward Hrdina ,  Rostislav Radievich Khrapko ,  Lisa Anne Moore ,  Charlene Marie Smith

IPC: C03C3/06 ,  C03B37/018 ,  C03B37/01

CPC classification number: C03B19/1453 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/21 ,  C03B2201/22 ,  C03C3/06 ,  C03C4/0071 ,  C03C4/0085 ,  C03C2201/21 ,  C03C2201/22 ,  C03C2201/23 ,  C03C2203/54 ,  G03F7/70966

Abstract: A fused silica glass having a refractive index homogeneity of less or equal to about 5 ppm over an aperture area of at least about 50 cm2. The fused silica glass is also substantially free of halogens and has an adsorption edge of less than about 160 nm. The glass is dried by exposing a silica soot blank to carbon monoxide before consolidation, reducing the combined concentration of hydroxyl (i.e., OH, where H is protium (11H) and deuteroxyl (OD), where D is deuterium (12H)) of less than about 20 ppm by weight in one embodiment, less than about 5 ppm by weight in another embodiment, and less than about 1 ppm by weight in a third embodiment.

Abstract translation: 在至少约50cm 2的开口面积上具有小于或等于约5ppm的折射率均匀性的熔融石英玻璃。 熔融石英玻璃也基本上不含卤素并具有小于约160nm的吸附边。 玻璃通过在固化前将二氧化硅烟炱坯料暴露于一氧化碳而干燥，降低羟基（即OH，其中H为铑（11H）和氘氧基（OD），其中D为氘（12H））的组合浓度较小 在一个实施方案中约20重量ppm，在另一个实施方案中小于约5重量ppm，在第三个实施方案中小于约1重量ppm。