公开(公告)号：US4161505A

公开(公告)日：1979-07-17

申请号：US648997

申请日：1976-01-14

Applicant: Satoshi Shiraishi ,  Kunio Fujiwara ,  Shiro Kurosaki

Inventor： Satoshi Shiraishi ,  Kunio Fujiwara ,  Shiro Kurosaki

IPC: B29D11/00 ,  C03B23/207 ,  C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  C03B37/027 ,  C03C13/04 ,  G02B6/02 ,  B05D5/06

CPC classification number: C03C13/045 ,  B29D11/00663 ,  C03B23/207 ,  C03B37/01211 ,  C03B37/01413 ,  C03B37/01446 ,  C03B37/01807 ,  C03B37/027 ,  G02B6/02 ,  G02B6/03611 ,  G02B6/03627 ,  C03B2201/02 ,  C03B2201/08 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2203/16 ,  C03B2203/22 ,  C03B2207/86 ,  Y10S65/16

Abstract: A process for producing an optical transmission fiber is provided which comprises feeding highly pure halides, hydrides or organic compounds of Si and B by way of carrier gas on the outer surface of a fused silica rod or a fused silica pipe, or inner surface of a fused silica pipe, oxidizing them and depositing the products to form a pure fused silica layer or a doped fused silica layer containing B.sub.2 O.sub.3, melting the pipe and the deposited layer followed by a spinning. The SiO.sub.2 layer can alternatively contain fluorine instead of B.sub.2 O.sub.3. A further SiO.sub.2 layer can be deposited thereon to improve the spinning processability and lower the index of refraction of the B.sub.2 O.sub.3 containing layer.

Abstract translation: 提供了一种制造光传输纤维的方法，其包括在熔融石英棒或熔融石英管的外表面上通过载气将高纯度卤化物，氢化物或Si和B的有机化合物进料，或 熔融石英管，氧化它们并沉积产物以形成纯熔融石英层或含有B2O3的掺杂熔融石英层，熔化管和沉积层，随后进行纺丝。 SiO 2层可以替代地含有氟代替B2O3。 可以在其上沉积另外的SiO 2层以改善纺丝加工性能并降低含B2O3的层的折射率。

公开(公告)号：US4082420A

公开(公告)日：1978-04-04

申请号：US648998

申请日：1976-01-14

Applicant: Satoshi Shiraishi ,  Kunio Fujiwara ,  Shiro Kurosaki

Inventor： Satoshi Shiraishi ,  Kunio Fujiwara ,  Shiro Kurosaki

IPC: B29D11/00 ,  C03B37/018 ,  C03B37/027 ,  C03C13/04 ,  G02B6/02 ,  G02B5/14

CPC classification number: C03C13/045 ,  B29D11/00663 ,  C03B37/01807 ,  C03B37/027 ,  G02B6/02 ,  G02B6/03611 ,  G02B6/03627 ,  C03B2201/02 ,  C03B2201/08 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2203/16 ,  C03B2203/22

Abstract: A process for producing an optical transmission fiber is provided which comprises feeding highly pure halides, hydrides or organic compounds of Si and B by way of carrier gas on the outer surface of a fused silica rod or a fused silica pipe, or inner surface of a fused silica pipe, oxidizing them and depositing the products to form a pure fused silica layer or a doped fused silica layer containing B.sub.2 O.sub.3, melting the pipe and the deposited layer followed by a spinning. The SiO.sub.2 layer can alternatively contain fluorine instead of B.sub.2 O.sub.3. A further SiO.sub.2 layer can be deposited thereon to improve the spinning processability and lower the index of refraction of the B.sub.2 O.sub.3 containing layer.

公开(公告)号：US20240300843A1

公开(公告)日：2024-09-12

申请号：US18593441

申请日：2024-03-01

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Andreas WÄLTE ,  Klaus-Uwe BADEKE

IPC: C03B37/014

CPC classification number: C03B37/0142 ,  C03B2201/02 ,  C03B2207/42 ,  C03B2207/50 ,  C03B2207/66 ,  C03B2207/70

Abstract: A method for depositing SiO2 soot particles on a deposition surface using at least two mutually spaced and adjacent build-up burners, and a corresponding device for carrying out the method.

公开(公告)号：US20240262735A1

公开(公告)日：2024-08-08

申请号：US18573215

申请日：2023-11-28

Applicant: Shin-Etsu Chemical Co., Ltd.

Inventor： Toshio SHIOBARA ,  Hajime ITOKAWA ,  Ryunosuke NOMURA

IPC: C03B37/012 ,  C03C3/06

CPC classification number: C03B37/01202 ,  C03C3/06 ,  C03B2201/02

Abstract: A method for packing quartz glass cloth includes the step of packing quartz glass cloth that is at least 99.5 wt % comprised of SiO2 with packaging film to form a package, wherein the package has a volumetric absolute humidity therein of 10.0 g/m3 or less.

公开(公告)号：US12006242B2

公开(公告)日：2024-06-11

申请号：US17594885

申请日：2019-06-03

Applicant: Tosoh Quartz Corporation

Inventor： Chiemi Ito ,  Takeshi Mutou ,  Minoru Kuniyoshi ,  Mutsumi Asano ,  Atsushi Ando

IPC: B32B27/02 ,  B02C17/20 ,  C03B19/06 ,  C03B19/10

CPC classification number: C03B19/066 ,  B02C17/20 ,  C03B19/1005 ,  C03B2201/02

Abstract: A large sized opaque quartz glass ingot having an excellent heat ray shielding property, an outstanding light blocking property, high mechanical strength and small roughness of a baked finished smooth surface.
The shape of bubbles inside the quartz glass are almost complete spheres and the average particle size of the bubbles is 1 μm or less, such that the strength of the opaque quartz glass ingot is increased as the stress concentration at the edges of the bubbles is eliminated and an increase of surface roughness caused by baking is alleviated.

公开(公告)号：US20170351023A1

公开(公告)日：2017-12-07

申请号：US15537005

申请日：2015-12-15

Applicant: NKT PHOTONICS A/S

Inventor： Thomas Tanggaard ALKESKJOLD ,  Casper Laur BYG ,  Christian JAKOBSEN ,  Jens Kristian LYNGSØE ,  Kim G. JESPERSEN ,  Jeppe JOHANSEN ,  Martin Dybendal MAACK ,  Martin Erland Vestergaard PEDERSEN ,  Carsten L. THOMSEN

IPC: G02B6/036 ,  C03C13/04 ,  C03C25/10 ,  C03B37/027 ,  G02B6/14 ,  G02B6/02 ,  G02F1/365 ,  C03C25/60 ,  G02F1/35

CPC classification number: G02B6/03694 ,  C03B37/02781 ,  C03B37/0279 ,  C03B37/10 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/21 ,  C03B2201/22 ,  C03B2203/14 ,  C03B2203/23 ,  C03B2203/42 ,  C03C13/045 ,  C03C13/046 ,  C03C25/1061 ,  C03C25/1062 ,  C03C25/1068 ,  C03C25/607 ,  C03C2201/02 ,  C03C2201/21 ,  C03C2201/22 ,  G02B6/02347 ,  G02B6/02357 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/02395 ,  G02B6/14 ,  G02F1/365 ,  G02F2001/3528

Abstract: The invention concerns a Photonic Crystal Fiber (PCF) a method of its production and a supercontinuum light source comprising such PCF. The PCF has a longitudinal axis and comprises a core extending along the length of said longitudinal axis and a cladding region surrounding the core. At least the cladding region comprises a plurality of microstructures in the form of inclusions extending along the longitudinal axis of the PCF in at least a microstructured length section. In at least a degradation resistant length section of the microstructured length section the PCF comprises hydrogen and/or deuterium. In at least the degradation resistant length section the PCF further comprises a main coating surrounding the cladding region, which main coating is hermetic for the hydrogen and/or deuterium at a temperature below Th, wherein Th is at least about 50° C., preferably 50° C.

公开(公告)号：US09772444B2

公开(公告)日：2017-09-26

申请号：US15467264

申请日：2017-03-23

Applicant: Fujikura Ltd.

Inventor： Takayuki Kitamura ,  Sho Endo ,  Tatsuya Kishi ,  Ryo Maruyama

IPC: G02B6/02 ,  G02B6/036

CPC classification number: G02B6/03627 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/22 ,  C03B2203/23 ,  G02B6/02004 ,  G02B6/0365

Abstract: An optical fiber including a core and a cladding including an inner cladding layer and an outer cladding layer is provided. The refractive index of the core Δ1, the refractive index of the inner cladding layer Δ2, and the refractive index of the outer cladding layer Δ3 have a relationship denoted by the following expressions: Δ1max>Δ2min and Δ1max>Δ3, and 0.01%

公开(公告)号：US20170176673A1

公开(公告)日：2017-06-22

申请号：US15378356

申请日：2016-12-14

Applicant: Corning Incorporated

Inventor： George Edward Berkey ,  Steven Bruce Dawes

IPC: G02B6/036 ,  C03B37/014 ,  C03B37/025 ,  G02B6/02

CPC classification number: G02B6/03627 ,  C03B19/1453 ,  C03B32/00 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/025 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/24 ,  C03C3/06 ,  C03C13/045 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/20 ,  C03C2201/31 ,  C03C2203/54 ,  G02B6/02009 ,  G02B6/036 ,  G02B6/03622

Abstract: Bromine doping of silica glass is demonstrated. Bromine doping can be achieved with SiBr4 as a precursor. Bromine doping can occur during heating, consolidation or sintering of a porous silica glass body. Doping concentrations of bromine increase with increasing pressure of the doping precursor and can be modeled with a power law equation in which doping concentration is proportional to the square root of the pressure of the doping precursor. Bromine is an updopant in silica and the relative refractive index of silica increases approximately linearly with doping concentration. Bromine can be used as a dopant for optical fibers and can be incorporated in the core and/or cladding regions. Core doping concentrations of bromine are sufficient to permit use of undoped silica as an inner cladding material in fibers having a trench in the refractive index profile. Co-doping of silica glass with bromine and chlorine is also demonstrated.

公开(公告)号：US09580348B2

公开(公告)日：2017-02-28

申请号：US14398124

申请日：2013-04-17

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Walter Lehmann ,  Achim Hofmann ,  Thomas Kayser ,  Martin Arndt

IPC: C03B20/00 ,  C04B35/185 ,  C03B19/10 ,  C23C4/10 ,  C23C4/18 ,  F27B7/00 ,  F27B7/04 ,  F27B7/34 ,  C04B35/626 ,  C04B35/64

CPC classification number: C03B20/00 ,  C03B19/1095 ,  C03B2201/02 ,  C04B35/185 ,  C04B35/62665 ,  C04B35/64 ,  C04B2235/5427 ,  C04B2235/77 ,  C04B2235/94 ,  C23C4/10 ,  C23C4/11 ,  C23C4/18 ,  C23C4/185 ,  F27B7/00 ,  F27B7/04 ,  F27B7/34

Abstract: The production of a quartz glass grit comprises the granulation of pyrogenetically produced silicic acid, and the formation of a SiO2 granulate and the vitrification of the SiO2 granulate using a treatment gas, which contains at least 30% by volume of helium and/or hydrogen. Said process is time consuming and cost intensive. In order to provide a method which makes it possible, starting from a porous SiO2 granulate, to manufacture, in a cost effective manner, a dense, synthetic quartz glass grit, which is suitable for melting bubble-free components made of quartz glass, according to the invention the vitrification of the SiO2 granulate occurs in a rotary kiln having a mullite-containing ceramic rotary kiln, for the manufacture of which a starting powder, which contains a molar proportion of at least 45% SiO2 and Al2O3 is applied by means of a thermal powder spraying method, forming a mullite-containing layer on a mold core, and the mold core is subsequently removed, and wherein the ceramic rotary kiln is flooded with a treatment gas or rinsed with a treatment gas, and wherein the ceramic rotary kiln is flooded with a treatment gas or rinsed with a treatment gas, which contains at least 30% by volume of helium and/or hydrogen.

Abstract translation: 石英玻璃砂粒的生产包括热解产生的硅酸的制粒，以及SiO 2颗粒的形成和使用含有至少30体积％的氦和/或氢的处理气体的SiO 2颗粒的玻璃化。 所述方法是耗时且成本较高的。 为了提供一种可以从多孔SiO 2颗粒开始的方法，以成本有效的方式制造致密的合成石英玻璃砂粒，其适用于熔化由石英玻璃制成的无气泡组分，根据 对于本发明，SiO 2颗粒的玻璃化发生在具有含莫来石的陶瓷回转窑的回转窑中，用于制造其中含有至少45％的SiO 2和Al 2 O 3的摩尔比例的起始粉末通过 热成型粉末喷涂法，在模芯上形成含莫来石的层，然后除去模芯，其中陶瓷回转窑用处理气体淹没或用处理气体冲洗，其中陶瓷回转窑 用处理气体淹没，或用含有至少30体积％氦和/或氢的处理气体漂洗。

公开(公告)号：US20160209585A1

公开(公告)日：2016-07-21

申请号：US15083957

申请日：2016-03-29

Applicant: FUJIKURA LTD.

Inventor： Tatsuya KISHI ,  Sho ENDO ,  Takayuki KITAMURA

IPC: G02B6/028 ,  G02B6/036 ,  C03B37/018 ,  G02B6/02

CPC classification number: G02B6/0281 ,  C03B37/014 ,  C03B37/018 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/26 ,  G02B6/02009 ,  G02B6/02028 ,  G02B6/028 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/0365

Abstract: An optical fiber includes a core, and a clad surrounding an outer circumference of the core, in which a first relative refractive index difference Δ1a is greater than 0, a second relative refractive index difference Δ1b is greater than 0, the first relative refractive index difference Δ1a is greater than the second relative refractive index difference Δ1b, the first relative refractive index difference Δ1a and the second relative refractive index difference Δ1b satisfy a relationship denoted by the following expression: 0.20≦(Δ1a−Δ1b)/Δ1a≦0.88, and a refractive index profile A of the core in an entire region of a section of 0≦r≦r1 as a function Δ(r) of a distance r from a center of the core in the radial direction is denoted by the following expression: Δ(r)=Δ1a−(Δ1a−Δ1b)r/r1.

Abstract translation: 光纤包括芯和围绕芯的外周的包层，其中第一相对折射率差Dgr1a大于0，第二相对折射率差Dgr; 1b大于0，第一 相对折射率差Dgr1a1大于第二相对折射率差Dgr; 1b，第一相对折射率差Dgr1a1和第二相对折射率差Dgr1b满足由以下表达式表示的关系：0.20＆nlE （＆Dgr; 1a-＆Dgr; 1b）/＆Dgr; 1a＆nlE; 0.88，并且在0＆lt; nlE的截面的整个区域中的芯的折射率分布A;作为函数的函数＆Dgr（r） （r）=＆Dgr; 1a - （＆Dgr; 1a-＆Dgr; 1b）r / r1表示从径向方向的芯的中心的r。