公开(公告)号：US4620861A

公开(公告)日：1986-11-04

申请号：US794833

申请日：1985-11-04

Applicant: George E. Berkey

Inventor： George E. Berkey

IPC: C03B8/04 ,  C03B37/014 ,  G02B6/00 ,  C03C25/02 ,  C03B37/023

CPC classification number: C03B37/01446 ,  C03B37/01453 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/42 ,  C03B2201/54 ,  C03B2203/22 ,  Y10S65/16

Abstract: Glass preforms for optical fibers or the like having refractive index profiles which vary in stepped or graded fashion across the preform, are made from porous glass preforms by introducing a first dopant into the porous preform during manufacture, partially sintering the preform to selectively modify the internal surface area thereof, introducing a second vapor-infusible dopant into the selectively sintered preform to cause selective doping of the porous glass, and then consolidating the resulting doped preform to clear glass.

Abstract translation: 用于具有折射率分布的折射率分布的玻璃预成型件在预制件中以阶梯或梯度方式变化，由多孔玻璃预制件制成，通过在制造期间将第一掺杂剂引入多孔预制件中，部分地烧结预成型件以选择性地修饰内部 将第二蒸气不可渗透的掺杂剂引入选择性烧结的预制件中以引起多孔玻璃的选择性掺杂，然后将所得到的掺杂预成型件固结成透明玻璃。

公开(公告)号：US4388098A

公开(公告)日：1983-06-14

申请号：US352568

申请日：1982-02-26

Applicant: Shiro Takahashi ,  Kazuo Sanada ,  Koichi Inada ,  Osamu Fukuda

Inventor： Shiro Takahashi ,  Kazuo Sanada ,  Koichi Inada ,  Osamu Fukuda

IPC: C03B37/014 ,  C03B37/018 ,  C03C13/04 ,  B01J10/00

CPC classification number: C03C13/046 ,  C03B37/01413 ,  C03B37/0142 ,  C03B37/01807 ,  C03B2201/30 ,  C03B2201/34 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2203/22 ,  C03B2203/26 ,  C03B2207/06 ,  C03B2207/08 ,  C03B2207/20 ,  C03B2207/28 ,  C03B2207/32 ,  C03B2207/34 ,  C03B2207/40

Abstract: An apparatus for producing a multi-component glass fiber preform includes a multi-conduit burner 31 having five concentric conduits 31a-31e, the center three conduits (a), (b) and (c) being flush with each other at their ends, the fourth conduit d, interposed between the third (c) and outermost conduit (e) extends axially beyond the first three. The burner has a flange 33 to direct the flame onto a substrate.In operation glass raw material is fed through the inner-most conduit (a) by a carrier gas. The material emitted from conduits (a -d) is mixed in a mixing area 32. Glass raw material and a nebulized dopant salt solution are emitted and burned with hydrogen gas depositing particulate glass material or soot on an adjacent substrate to produce a multi-component glass fiber preform.

公开(公告)号：US4313748A

公开(公告)日：1982-02-02

申请号：US123979

申请日：1980-02-25

Applicant: Pedro B. Macedo ,  Theodore A. Litovitz

Inventor： Pedro B. Macedo ,  Theodore A. Litovitz

IPC: C03B37/016 ,  C03C13/00 ,  C03C13/04 ,  C03C23/00 ,  G02B6/02 ,  G02B6/028 ,  C03B32/00 ,  C03C17/10 ,  C03C17/25

CPC classification number: G02B6/02 ,  C03B37/016 ,  C03C13/00 ,  C03C13/046 ,  C03C23/0095 ,  C03B2201/10 ,  C03B2201/30 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/50 ,  C03B2201/54 ,  Y02P40/57

Abstract: The present invention relates to a new glass material applicable in those situations where thermal and/or mechanical shock would limit the use of other glass materials presently available. Dopants are deposited into the interconnected pores of a porous glass in a non-uniform manner such that upon consolidation and cooling the final article has its surface under compressive stress. Dopants may also be added to control color and other appearance features. A porous silicate glass is washed with sodium hydroxide followed by immersing the washed glass in a liquid solution of a dopant in a liquid solvent therefor to stuff the pores of the washed glass with the solution. Thereafter, the solvent is removed from the pores and the pores are collapsed by a heating step.

Abstract translation: 本发明涉及适用于热和/或机械冲击将限制目前可获得的其它玻璃材料的使用的情况下的新型玻璃材料。 掺杂剂以不均匀的方式沉积在多孔玻璃的互连孔中，使得在固结和冷却时，最终制品的表面处于压应力下。 还可以添加掺杂剂以控制颜色和其它外观特征。 用氢氧化钠洗涤多孔硅酸盐玻璃，然后将洗涤后的玻璃浸在液体溶剂中的掺杂剂的液体溶液中，以用溶液填充经过洗涤的玻璃的孔。 此后，从孔中除去溶剂，通过加热步骤将孔压缩。

公开(公告)号：US3486913A

公开(公告)日：1969-12-30

申请号：US3486913D

申请日：1968-04-11

Applicant: BAYER AG

Inventor： ZIRNGIBL HANS ,  GUTSCHE WALTER ,  BRANDLE KARL

IPC: C01B13/22 ,  C01B33/18 ,  C01B33/12 ,  C01F7/02 ,  C08H17/24 ,  C09C1/00

CPC classification number: C01B33/183 ,  C01B13/22 ,  C01P2004/62 ,  C01P2006/60 ,  C01P2006/80 ,  C03B19/106 ,  C03B2201/30 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2201/54

公开(公告)号：US20230202904A1

公开(公告)日：2023-06-29

申请号：US18008471

申请日：2021-06-17

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Hirotaka SAKUMA ,  Yuki KAWAGUCHI

IPC: C03B37/012 ,  C03B37/014

CPC classification number: C03B37/01228 ,  C03B37/01473 ,  C03B2201/50 ,  C03B2201/54

Abstract: A method for manufacturing an optical fiber preform includes: adding an alkali metal element or an alkaline earth metal element to an inner surface of a glass pipe made of silica-based glass; reducing a diameter of the glass pipe after the adding; etching an inner surface of a continuous section of the glass pipe in a longitudinal direction after the reducing; and collapsing the glass pipe after the etching. At least one of the adding, the reducing, the etching, and the collapsing includes performing a local etching on an inner surface of a section of the glass pipe that is shorter than the continuous section.

公开(公告)号：US09403620B2

公开(公告)日：2016-08-02

申请号：US13861700

申请日：2013-04-12

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

Inventor： Shigeru Yamagata ,  Tomomi Usui

IPC: B65D13/02 ,  C03B19/09 ,  C30B15/10 ,  C30B29/06 ,  C30B35/00

CPC classification number: B65D13/02 ,  C03B19/095 ,  C03B2201/54 ,  C03C3/06 ,  C03C2201/54 ,  C30B15/10 ,  C30B29/06 ,  C30B35/002 ,  Y02P40/57

Abstract: A silica container contains a substrate having a rotational symmetry, containing mainly a silica, and gaseous bubbles in a peripheral part of the substrate; a transparent silica glass in an inner peripheral part of the substrate; and an inner layer, formed on an inner surface of the substrate and containing a transparent silica glass; wherein the substrate contains Li, Na, and K in a total concentration of 50 or less ppm by weight; the substrate has a linear light transmittance of 91.8% to 93.2% at a light wavelength of 600 nm; the inner layer contains Li, Na, and K in a total concentration of 100 or less ppb by weight and at least one of Ca, Sr, and Ba in a total concentration of 50 to 2000 ppm by weight; and the inner layer has a linear light transmittance of 91.8% to 93.2% at a light wavelength of 600 nm.

Abstract translation: 二氧化硅容器包含具有旋转对称性的基材，主要含有二氧化硅，并且在基板的周边部分含有气泡; 在基板的内周部分中的透明石英玻璃; 以及形成在所述基板的内表面上并且包含透明石英玻璃的内层; 其中所述基材含有总重量为50重量％以下的Li，Na和K; 基板在600nm的光波长下的线性透光率为91.8％〜93.2％ 内层含有总重量为100重量％以下的Li，Na和K，总重量为50〜2000重量ppm的Ca，Sr，Ba中的至少一种。 并且内层在600nm的光波长下的线性透光率为91.8％〜93.2％。

公开(公告)号：US09395485B2

公开(公告)日：2016-07-19

申请号：US13849319

申请日：2013-03-22

Applicant: FUJIKURA LTD.

Inventor： Takayuki Kitamura ,  Akihito Imase

IPC: C03B37/018 ,  C03B37/012 ,  G02B6/02 ,  C03B37/014

CPC classification number: G02B6/02 ,  C03B37/01446 ,  C03B37/0146 ,  C03B2201/50 ,  C03B2201/54

Abstract: A method of manufacturing a glass preform is provided. The method including, vaporizing an alkali metal compound or an alkali earth metal compound and being brought the alkali metal compound or the alkali earth metal compound into contact with a hydroxyl group on a surface of porous silica glass and dehydrating the porous silica glass, and sintering the dehydrated porous silica glass and forming a transparent glass body.

Abstract translation: 提供一种制造玻璃预制件的方法。 该方法包括使碱金属化合物或碱土金属化合物蒸发，并使碱金属化合物或碱土金属化合物与多孔二氧化硅玻璃表面的羟基接触并使多孔石英玻璃脱水，并烧结 脱水多孔石英玻璃，形成透明玻璃体。

公开(公告)号：US08649650B2

公开(公告)日：2014-02-11

申请号：US13260415

申请日：2010-03-29

Applicant: Ranjan Sen ,  Anirban Dhar ,  Mukul Chandra Paul ,  Himadri Sekhar Maiti

Inventor： Ranjan Sen ,  Anirban Dhar ,  Mukul Chandra Paul ,  Himadri Sekhar Maiti

IPC: G02B6/00 ,  C03B37/075 ,  C03C13/00

CPC classification number: C03B37/01838 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/54 ,  C03C3/095 ,  C03C4/0071 ,  C03C13/046 ,  Y02P40/57

Abstract: The present invention provides a method of making rare earth (RE) doped optical fiber using BaO as co-dopant instead of Al or P commonly used for incorporation of the RE in silica glass by MCVD and solution doping technique. The method comprises deposition of particulate layer of GeO2 doped SiO2 with or without small P2O5 for formation of the core and solution doping by soaking the porous soot layer into an aqueous solution of RE and Ba containing salt. This is followed by dehydration and sintering of the soaked deposit, collapsing at a high temperature to produce the preform and drawing of fibers of appropriate dimension. The use of Ba-oxide enables to eliminate unwanted core-clad interface defect which is common in case of Al doped fibers. The fibers also show good RE uniformity, relatively low optical loss in the 0.6-1.6 μm wavelength region and good optical properties suitable for their application in amplifiers, fiber lasers and sensor devices.

Abstract translation: 本发明提供一种使用BaO作为共掺杂剂代替通常用于通过MCVD和溶液掺杂技术将石英玻璃中的RE掺入的Al或P的掺杂稀土（RE）掺杂光纤的方法。 该方法包括沉积具有或不具有小的P 2 O 5的GeO 2掺杂的SiO 2的颗粒层以形成芯并通过将多孔烟灰层浸入含RE和Ba的盐的水溶液中来进行溶液掺杂。 随后将浸渍的沉积物脱水和烧结，在高温下塌陷以制备预制件并拉出适当尺寸的纤维。 使用Ba氧化物能够消除在Al掺杂光纤的情况下常见的不需要的芯包层界面缺陷。 光纤还具有良好的均匀性，0.6-1.6μm波长区域的光损耗相对较低，适用于放大器，光纤激光器和传感器设备的良好的光学性能。

公开(公告)号：US20130336343A1

公开(公告)日：2013-12-19

申请号：US13973051

申请日：2013-08-22

Applicant: Furukawa Electric Co., Ltd.

Inventor： Ryo MIYABE ,  Keiichi Aiso

IPC: H01S3/067 ,  G02B6/036

CPC classification number: H01S3/06716 ,  C03B37/01211 ,  C03B37/01433 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/36 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2203/223 ,  C03B2203/23 ,  G02B6/03633 ,  H01S3/06733 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/1618 ,  H01S3/1693 ,  H01S3/176

Abstract: An optical fiber has: a core made of silica glass in which a rare earth element and aluminum have been added; an inner cladding layer that is formed around the core, is made of silica glass in which at least any one of an alkali metal and an alkali earth metal has been added, and has a refractive index lower than a refractive index of the core; and an outer cladding layer that is formed around the inner cladding layer and has a refractive index lower than the refractive index of the inner cladding layer.

Abstract translation: 光纤具有：添加了稀土元素和铝的石英玻璃制成的芯; 在芯部周围形成的内包层由石英玻璃制成，其中添加了碱金属和碱土金属中的至少一种，并且折射率低于芯的折射率; 以及外包层，其形成在所述内包层周围并且具有低于所述内包层的折射率的折射率。

公开(公告)号：US20130251322A1

公开(公告)日：2013-09-26

申请号：US13849319

申请日：2013-03-22

Applicant: FUJIKURA LTD.

Inventor： Takayuki KITAMURA ,  Akihito IMASE

IPC: G02B6/02

CPC classification number: G02B6/02 ,  C03B37/01446 ,  C03B37/0146 ,  C03B2201/50 ,  C03B2201/54

Abstract: A method of manufacturing a glass preform is provided. The method including, vaporizing an alkali metal compound or an alkali earth metal compound and being brought the alkali metal compound or the alkali earth metal compound into contact with a hydroxyl group on a surface of porous silica glass and dehydrating the porous silica glass, and sintering the dehydrated porous silica glass and forming a transparent glass body.

Abstract translation: 提供一种制造玻璃预制件的方法。 该方法包括使碱金属化合物或碱土金属化合物蒸发，并使碱金属化合物或碱土金属化合物与多孔二氧化硅玻璃表面的羟基接触并使多孔石英玻璃脱水，并烧结 脱水多孔石英玻璃，形成透明玻璃体。