公开(公告)号：KR1020070110512A

公开(公告)日：2007-11-19

申请号：KR1020077020526

申请日：2006-02-15

Applicant: 에보니크 데구사 게엠베하

Inventor： 오스발트,모니카 ,  마이어,위르겐 ,  델러,클라우스

IPC: C03B37/012 ,  C03B19/10 ,  C03B19/01 ,  C01B33/18

CPC classification number: C03B37/01291 ,  C03B19/01 ,  C03B19/102 ,  C03B19/106 ,  C03B2201/07 ,  C03B2201/12

Abstract: Glass is produced by depositing presintering composition on a preform set into move in front of a plasma torch which moves back and forth substantially parallel to a longitudinal direction of the preform, a first feed duct feeds the plasma with grains of the presintering composition while optionally a second feed duct feeds the plasma with a fluorine or chlorine compound, preferably a fluorine compound, mixed with a carrier gas, whereby the presintering composition consists of granules of metal oxides or metalloid oxides of a pyrogenic silicon dioxide powder with a BET surface area of 30 to 90 m^2/g, a DBP index of 80 or less, a mean aggregate area of less than 25000 nm^2 and a mean aggregate circumference of less than 1000 nm, wherein at least 70% of the aggregates have a circumference of less than 1300 nm or a high-purity pyrogenically prepared silicon dioxide having metal contents of less than 0.2 Vg/g, which is prepared by reacting a silicon tetrachloride having a metal content of less than 30 ppb by means of flame hydrolysis.

Abstract translation: 玻璃是通过将预烧结组合物沉积在等离子体焰炬之前移动的预成型体上制造的，所述等离子体焰炬基本上平行于预成型件的纵向方向前后移动，第一进料管将预烧结组合物的颗粒进料到等离子体， 第二进料管将等离子体与载体气体混合的氟或氯化合物，优选氟化合物进料，其中预烧结组合物由BET表面积为30的热解二氧化硅粉末的金属氧化物或准金属氧化物颗粒组成 至90m 2 / g，DBP指数为80或更小，平均聚集面积小于25000nm ^ 2，平均聚集体周长小于1000nm，其中至少70％的聚集体具有 小于1300nm的高纯度热解法制备的二氧化硅，其金属含量低于0.2Vg / g，其通过使具有金属含量的四氯化硅 通过火焰水解小于30ppb。

公开(公告)号：KR1020040017024A

公开(公告)日：2004-02-26

申请号：KR1020020049108

申请日：2002-08-20

Applicant: 주식회사 엘에스

Inventor： 장기완 ,  박래혁 ,  이찬주

IPC: C03B37/018

CPC classification number: C03B37/01853 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/28 ,  C03B2201/31 ,  G02B6/02

Abstract: PURPOSE: Provided is a process for producing an optical fiber preform by using modified chemical vapor deposition(MCVD) containing dehydration and desalination, which removes hydroxide groups causing light absorption loss and chlorine causing light scattering loss. CONSTITUTION: The process comprises: a sooting process to produce silica soot(12) by injecting reaction gas and oxygen gas into a silicon oxide tube(10) and heating the tube(10) at a sintering temperature or lower, especially 1400-1600deg.C by using a reciprocating torch(14); the dehydration process to remove the hydroxide groups from the silica soot(12) by injecting a mixed gas containing chlorine into the tube(10) and heating at a lower temperature than the sooting process, especially 900-1200deg.C by using the reciprocating torch(14) with a velocity of less than 700mm/min; the desalination process to remove the chlorine from the silica soot(12) by injecting a mixed gas containing oxygen gas into the tube(10) and heating at a higher temperature than the dehydration process and a lower temperature than the sooting process by using the reciprocating torch(14) with a velocity of less than 700mm/min; a sintering process to sinter the silica soot(12) by heating the tube(10) at the sintering temperature or higher, especially 1700deg.C or higher by using the reciprocating torch(14) with a velocity of less than 700mm/min.

Abstract translation: 目的：提供一种通过使用含有脱水和脱盐的改性化学气相沉积（MCVD）来生产光纤预制棒的方法，该方法除去引起光吸收损失的氢氧根和引起光散射损失的氯。 构成：该方法包括：通过将反应气体和氧气注入氧化硅管（10）中并在烧结温度或更低温度（特别是1400-1600℃）下加热管（10）来生产二氧化硅烟灰（12）的烟炱过程。 C通过使用往复式手电筒（14）; 通过将含有氯的混合气体注入管（10）中并从低于烟炱过程的温度加热，特别是900-1200℃的加热，通过使用往复式火炬（12），从二氧化硅烟炱（12）中除去氢氧基的脱水过程 （14），速度小于700mm / min; 通过将含有氧气的混合气体注入到管（10）中并在比脱水过程更高的温度下加热并且比通过使用往复运动的烟炱过程具有更低的温度来从二氧化硅烟炱（12）中除去氯的脱盐过程 火炬（14），速度小于700mm / min; 通过使用以700mm / min以下的速度的往复式炬（14）在烧结温度以上，特别是1700℃以上的温度加热管（10）来烧结二氧化硅烟炱（12）的烧结工序。

公开(公告)号：KR100283855B1

公开(公告)日：2001-02-15

申请号：KR1019997000207

申请日：1997-07-14

Applicant: 도요타 지도샤(주) ,  각코호진 도요타가쿠엔

Inventor： 사이토가즈야 ,  이쿠시마아키라

IPC: C03C13/04

CPC classification number: C03C13/046 ,  C03B37/014 ,  C03B2201/07 ,  C03B2201/30 ,  C03B2201/50 ,  C03B2201/54 ,  C03C3/06 ,  C03C2201/40 ,  C03C2201/50 ,  C03C2201/54 ,  G02B6/02

Abstract: 본발명의초저손실유리는, 고순도실리카유리에네트워크수식산화물중의적어도 1종류이상을 1 내지 500wt, ppm 함유하는것을특징으로한다. 네트워크수식산화물이실리카의사면체네트워크구조를적당하게완화시켜레일리산란손실이저하하는것이라고생각된다. 네트워크수식산화물로서는 NaO, KO, LiO, MgO, CaO, PbO를들 수있다. 이불순물첨가실리카유리는고순도인실리카유리에비하여레일리산란손실이낮아장거리전송용유리파이버의모재로서뛰어나다.

公开(公告)号：KR100268559B1

公开(公告)日：2000-10-16

申请号：KR1019980017493

申请日：1998-05-15

Applicant: 스미토모덴키고교가부시키가이샤

Inventor： 우라노아키라 ,  단즈카토시오 ,  사이토타쯔히코 ,  시시도야스히코 ,  모기마사하루 ,  쿄토미치히사

IPC: C03B37/023 ,  C03B20/00

CPC classification number: G02B6/102 ,  C03B37/14 ,  C03B37/15 ,  C03B2201/07 ,  C03B2201/21 ,  C03B2201/23 ,  C03C3/06 ,  C03C4/0085 ,  C03C13/045 ,  C03C23/002 ,  C03C23/003 ,  C03C23/0035 ,  C03C23/0095 ,  C03C2201/21 ,  C03C2201/23 ,  C03C2203/50 ,  G02B6/02 ,  Y02P40/57

Abstract: 본 발명은 자외선조사 열악화를 저감하게 한 광파이버, 그 밖의 석영유리물품 및 그 제조방법을 제공하는 것을 과제로 한 것이며, 그 해결수단으로서, 원료 석영유리물품에 전자파를 조사하여 유리결함을 발생하게 하는 제 1공정과, 그 후에, 수소가스로 이루어진 분위기에 침지하는 제 2공정에 의해, 자외선조사에 의한 자외선영역에서의 광흡수의 증가가 실질적으로 발생하지 않도록 하게 하는 것을 특징으로 한 제조방법 및 이와 같이 해서 이루어진 석영유리물품이며, 전자파로서는 자외선, 진공자외선, X선 또는 γ선을 사용하고, 조사선량이 10∼10
4 ㏉인 것이 특히 바람직하다. 또, 상기 제 2공정후에 재차 전자파를 조사하는 제 3공정을 거치는 것을 특징으로 하는 상기 방법 및 석영유리물품은, 특히 광파이버에 적용해서 내자외선 특성을 향상시킬 수 있다. 제 3공정의 전자파로서는 엑사이머레이저광 또는 γ선이 특히 바람직하다. 또, 제 4공정으로서 제 3공정을 거친 후의 석영유리물품으로부터 수소 빼기를 해도 된다.

公开(公告)号：US20240018029A1

公开(公告)日：2024-01-18

申请号：US18373886

申请日：2023-09-27

Applicant: OHARA INC.

Inventor： MORIJI NOZAKI ,  TOSHITAKA YAGI ,  KOHEI OGASAWARA

IPC: C03B23/02 ,  C03B32/02 ,  C03C3/085

CPC classification number: C03B23/02 ,  C03B32/02 ,  C03C3/085 ,  C03B2201/07 ,  C03B2201/32 ,  C03B2201/42

Abstract: To obtain a crystallized glass member having a curved shape and provide a method for producing the same. A method for producing a crystallized glass member having a curved shape, including a deformation step for adjusting the temperature of a plate glass to a first temperature zone from higher than [At+40]° C. to [At+146]° C. or lower, where At is the yield point (° C.) of the plate glass and deforming at least part of the plate glass into a curved shape by external force acting on the plate glass while precipitating crystals from the plate glass.

公开(公告)号：US09919955B2

公开(公告)日：2018-03-20

申请号：US15086169

申请日：2016-03-31

Applicant: OFS Fitel, LLC

Inventor： Man F Yan ,  Peter I Borel ,  Tommy Geisler ,  Rasmus V Jensen ,  Ole A Levring ,  Jorgen Ostgaard Olsen ,  David W Peckham ,  Dennis J Trevor ,  Patrick W Wisk ,  Benyuan Zhu

IPC: G02B6/36 ,  C03C13/04 ,  C03B37/012 ,  C03C3/06 ,  C03C4/10 ,  C03B37/027 ,  G02B6/036

CPC classification number: C03C13/046 ,  C03B37/01208 ,  C03B37/01853 ,  C03B37/027 ,  C03B2201/07 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/28 ,  C03B2201/50 ,  C03B2203/223 ,  C03B2203/23 ,  C03C3/06 ,  C03C4/10 ,  C03C13/045 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/28 ,  C03C2201/50 ,  G02B6/03627 ,  G02B6/0365

Abstract: An optical fiber has a core region that is doped with one or more viscosity-reducing dopants in respective amounts that are configured, such that, in a Raman spectrum with a frequency shift of approximately 600 cm−1, the fiber has a nanoscale structure having an integrated D2 line defect intensity of less than 0.025. Alternatively, the core region is doped with one or more viscosity-reducing dopants in respective amounts that are configured such that the fiber has a residual axial compressive stress with a stress magnitude of more than 20 MPa and a stress radial extent between 2 and 7 times the core radius.According to another aspect of the invention a majority of the optical propagation through the fiber is supported by an identified group of fiber regions comprising the core region and one or more adjacent cladding regions. The fiber regions are doped with one or more viscosity-reducing dopants in respective amounts and radial positions that are configured to achieve viscosity matching among the fiber regions in the identified group.

公开(公告)号：US20170349477A1

公开(公告)日：2017-12-07

申请号：US15608118

申请日：2017-05-30

Applicant: CoorsTek KK

Inventor： Yuji FUKASAWA ,  Sachiko KATO

IPC: C03C3/06 ,  C03B25/02 ,  C03B27/02 ,  C03C4/00

CPC classification number: C03C3/06 ,  C03B19/1461 ,  C03B25/02 ,  C03B27/02 ,  C03B27/028 ,  C03B27/04 ,  C03B32/00 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03C4/0085

Abstract: Provided is a silica glass member which exhibits high optical transparency to vacuum ultraviolet light and has a low thermal expansion coefficient of 4.0−10−7/K or less at near room temperature, particularly a silica glass member which is suitable as a photomask substrate to be used in a double patterning exposure process using an ArF excimer laser (193 nm) as a light source. The silica glass member is used in a photolithography process using a vacuum ultraviolet light source, in which the fluorine concentration is 1 wt % or more and 5 wt % or less, and the thermal expansion coefficient at from 20° C. to 50° C. is 4.0×10−7/K or less.

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。