公开(公告)号：US20050262877A1

公开(公告)日：2005-12-01

申请号：US10857081

申请日：2004-05-27

Applicant: Jitendra Balakrishnan ,  Steven Dunwoody ,  Pushkar Tandon

Inventor： Jitendra Balakrishnan ,  Steven Dunwoody ,  Pushkar Tandon

IPC: C03B37/014 ,  C03B37/018

CPC classification number: C03B37/0142 ,  C03B37/01413 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2207/36 ,  C03B2207/70 ,  C03B2207/81 ,  C03B2207/87

Abstract: A method for deposition glass soot for making an optical fiber preform. A fuel and a glass precursor are flowed to a burner flame forming glass soot which is deposited onto a glass target. By first depositing an insulating layer of glass soot with a low velocity burner flame, the amount of water which may be adsorbed into the surface of the glass target can be reduced. Thereafter, the flame velocity may be increased to increase the deposition rate of the glass soot without significantly increasing the concentration of water incorporated into the glass target.

Abstract translation: 一种用于制造光纤预制棒的沉积玻璃烟炱的方法。 燃料和玻璃前体流到燃烧器火焰形成的玻璃烟灰，其沉积在玻璃靶上。 通过首先用低速燃烧器火焰沉积玻璃烟炱的绝缘层，可以减少可能吸附到玻璃靶的表面中的水的量。 此后，可以增加火焰速度以增加玻璃烟炱的沉积速率，而不会显着增加掺入玻璃靶中的水的浓度。

公开(公告)号：US06550277B1

公开(公告)日：2003-04-22

申请号：US09709168

申请日：2000-11-10

Applicant: Bruno Uebbing ,  Jan Vydra

Inventor： Bruno Uebbing ,  Jan Vydra

IPC: C03B1906

CPC classification number: C03C4/0085 ,  C03B19/1453 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/075 ,  C03C3/06 ,  C03C2201/06 ,  C03C2201/08 ,  C03C2201/23 ,  C03C2203/40 ,  Y10S65/08 ,  Y10S65/16 ,  Y10S501/905

Abstract: The invention concerns a quartz glass body for an optical component for the transmission of UV radiation with a wavelength of 250 nm and less, especially for a wavelength of 157 nm, as well as a process for the manufacture of the quartz glass body where fine quartz glass particles are formed by flame hydrolysis of a silicon compound, deposited and vitrified. Suitability of a quartz glass as represented by high base transmission and radiation resistance depends on structural properties caused by local stoichiometric deviations, and on the chemical composition. The quartz glass body according to the inventions is distinguished by a uniform base transmission (relative change of base transmission ≦1%) in the wavelength range from 155 nm to 250 nm (radiation penetration depth of 10 mm) of at least 80%, a low OH content (less than 10 ppm by weight) and a glass structure substantially free from oxygen defect centers. A quartz glass body of this kind is manufactured by a process which allows bulk embedding of hydrogen or oxygen into the glass network in that at least a two stage heat treatment takes place at temperatures ranging from 850° C. to 1600° C. before the vitrification, the last stage comprising sintering at a temperature between 1300° C. and 1600° C. in an atmosphere containing hydrogen or oxygen, or a nonflammable mixture of these substances.

Abstract translation: 本发明涉及一种用于传输波长为250nm以下，特别是波长为157nm的紫外线的光学部件的石英玻璃体，以及用于制造石英玻璃体的方法，其中精细的石英 通过硅化合物的火焰水解形成玻璃颗粒，沉积并玻璃化。 由高碱性透射和耐辐射性表示的石英玻璃的适用性取决于由局部化学计量偏差引起的结构特性以及化学成分。 根据本发明的石英玻璃体的特征在于在155nm至250nm（辐射穿透深度为10mm）的波长范围内的均匀的基底透射率（基底透射率的相对变化<= 1％）为至少80％ 低OH含量（小于10ppm重量）和基本上不含氧缺陷中心的玻璃结构。 这种石英玻璃体是通过允许将氢气或氧气大量嵌入玻璃网络的方法来制造的，因为至少在两个阶段之间的热处理在850℃至1600℃之间的温度下进行 玻璃化，最后阶段包括在含有氢气或氧气的气氛中在1300℃和1600℃之间的温度下烧结，或这些物质的不可燃混合物。

公开(公告)号：US20030005724A1

公开(公告)日：2003-01-09

申请号：US10169191

申请日：2002-06-28

Inventor： Kunio Sugiyama ,  Shuichi Tada ,  Jinichi Omi ,  Tadahiro Nakada ,  Hiroshi Morita ,  Masaki Kusuhura ,  Hiroyuki Watanabe ,  Hirofumi Uehara ,  Keiko Sanpei

IPC: C03B008/02

CPC classification number: C03B19/1065 ,  C01B33/16 ,  C03B2201/03 ,  C03B2201/04 ,  C03C1/006

Abstract: A hydrous silica gel is dehydrated by freezing, thawing, and removing water separated by thawing, thereby yielding silica particles. In addition, the silica particles thus formed is washed and fired, thereby producing a synthetic quartz glass power. A water glass is dealkalized, an oxidizing agent and an acid are added, the mixture thus formed is passed through a hydrogen type cation exchange resin, the aqueous silica solution thus formed is then gelled, and the gelled material is then washed and fired, thereby producing a synthetic quartz powder. Silica is sequentially held for a predetermined time at each temperature range of 150 to 400null C., 500 to 700null C., and 1,100 to 1,300null C., thereby producing a quartz glass.

Abstract translation: 通过冷冻，解冻和除去通过解冻分离的水来脱水水合硅胶，从而产生二氧化硅颗粒。 此外，将由此形成的二氧化硅颗粒进行洗涤和烧制，从而产生合成石英玻璃粉末。 将水玻璃脱碱，加入氧化剂和酸，使形成的混合物通过氢型阳离子交换树脂，然后将由此形成的二氧化硅水溶液凝胶化，然后将凝胶材料洗涤并烧制，由此 生产合成石英粉。 在150〜400℃，500〜700℃，1100〜1300℃的各温度范围内依次保持二氧化硅预定时间，生成石英玻璃。

公开(公告)号：US06477305B1

公开(公告)日：2002-11-05

申请号：US09547598

申请日：2000-04-11

Applicant: George E. Berkey ,  Dana C. Bookbinder ,  Richard M. Fiacco ,  Cynthia B. Giroux ,  Daniel W. Hawtof ,  Dale R. Powers ,  V. Srikant

Inventor： George E. Berkey ,  Dana C. Bookbinder ,  Richard M. Fiacco ,  Cynthia B. Giroux ,  Daniel W. Hawtof ,  Dale R. Powers ,  V. Srikant

IPC: G02B602

CPC classification number: C03B37/01486 ,  C03B37/0124 ,  C03B37/01446 ,  C03B37/01473 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/22 ,  C03B2201/31 ,  C03C3/06 ,  C03C13/047 ,  C03C2201/22 ,  C03C2203/54 ,  G02B6/02

Abstract: A cylindrical glass body having a low water content centerline region and method of manufacturing such a cylindrical glass body for use in the manufacture of optical waveguide fiber is disclosed. The centerline region of the cylindrical glass body has a water content sufficiently low such that an optical waveguide fiber made from the cylindrical glass body of the present invention exhibits an optical attenuation of less than about 0.35 dB/km, and preferably less than about 0.31 dB/km at a measured wavelength of 1380 nm. A low water content plug used in the manufacture of such a cylindrical glass body, an optical waveguide fiber having a low water peak, and an optical fiber communication system incorporating such an optical waveguide fiber is also disclosed.

Abstract translation: 公开了一种具有低含水率中心线区域的圆柱形玻璃体及其制造用于制造光波导纤维的圆柱形玻璃体的方法。 圆柱形玻璃体的中心线区域的水含量足够低，使得由本发明的圆柱形玻璃体制成的光波导纤维的光衰减小于约0.35dB / km，优选小于约0.31dB / km，测量波长为1380 nm。 还公开了用于制造这种圆柱形玻璃体的低含水量塞子，具有低水峰的光波导纤维和包含这种光波导纤维的光纤通信系统。

公开(公告)号：US06376401B1

公开(公告)日：2002-04-23

申请号：US09387773

申请日：1999-09-01

Applicant: Shinichi Kondo ,  Takayuki Nakamura ,  Kazuhiko Fukuda ,  Naoyoshi Kamisugi ,  Nobu Kuzuu ,  Yoshinao Ihara ,  Hidetoshi Wakamatsu

Inventor： Shinichi Kondo ,  Takayuki Nakamura ,  Kazuhiko Fukuda ,  Naoyoshi Kamisugi ,  Nobu Kuzuu ,  Yoshinao Ihara ,  Hidetoshi Wakamatsu

IPC: C03B2000

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B2201/02 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/23 ,  C03C2201/11 ,  C03C2201/23 ,  C03C2203/44

Abstract: A synthetic silica glass having a high transmittance for vacuum ultraviolet rays, for example F2 excimer laser beam with a wavelength of 157 nm, a high uniformity and a high durability and useful for ultraviolet ray-transparent optical glass materials is produced from a high-purity silicon compound, for example silicon tetrachloride, by heat treating an accumulated porous silica material at a temperature not high enough to convert the porous silica material to a transparent silica glass in an inert gas atmosphere for a time sufficient to cause the OH groups to be condensed and removed from the glass, and exhibits substantially no content of impurities other than OH group a difference between highest and lowest fictional temperatures of 50° C. or less and a transmittance of 157 nm ultraviolet rays through a 10 mm optical path of 60% or more, and optically a OH group content of 1 to 70 ppm, a Cl content less than 1 ppm, a total content of impurity metals of 50 ppb or less, a content of each individual impurity metal less than 10 ppb, and an ultraviolet ray-transmittance at 172 to 200 nm of 40% or more even after the glass is exposed to an irradiation of ultraviolet rays at 160 to 300 nm for one hour.

Abstract translation: 对于真空紫外线具有高透射率的合成二氧化硅玻璃，例如波长为157nm的F2准分子激光束，高均匀性和高耐久性并且可用于紫外线透明光学玻璃材料由高纯度 硅化合物，例如四氯化硅，通过在不足够高的温度下热处理积聚的多孔二氧化硅材料，以在惰性气体气氛中将多孔二氧化硅材料转化为透明的石英玻璃足以使OH基团冷凝的时间 并且从玻璃中除去，并且基本上不含OH基团中的杂质含量，最高和最低虚构温度之间的差别为50℃或更低，通过10mm光路的157nm紫外线的透射率为60％或 更多地，光学地含有1至70ppm的OH基含量，小于1ppm的Cl含量，50ppb以下的杂质金属的总含量， 即使玻璃暴露于160〜300nm的紫外线照射1小时，每一种杂质金属小于10ppb，而在172〜200nm的紫外线透射率为40％以上。

公开(公告)号：US6131415A

公开(公告)日：2000-10-17

申请号：US879348

申请日：1997-06-20

Applicant: Kai Huei Chang ,  David Kalish ,  Thomas John Miller ,  Michael L. Pearsall

Inventor： Kai Huei Chang ,  David Kalish ,  Thomas John Miller ,  Michael L. Pearsall

IPC: G02B6/00 ,  C03B37/012 ,  C03B37/014 ,  C03C25/10 ,  C03C25/12 ,  G02B6/02 ,  G02B6/036 ,  C03B37/027

CPC classification number: C03B37/01211 ,  C03B37/01228 ,  C03B37/01237 ,  C03B37/01248 ,  C03B37/01446 ,  C03C25/106 ,  C03C25/12 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/24 ,  G02B6/02 ,  Y02P40/57

Abstract: A singlemode optical fiber 700 having very low loss at 1385 nm, and a practical method for making same are disclosed. A core rod 20 is fabricated using vapor axial deposition to have a deposited cladding/core ratio (D/d) that is less than 7.5. The core rod is dehydrated in a chlorine- or fluorine-containing atmosphere at about 1200.degree. C. to reduce the amount of OH present to less than 0.8 parts per billion by weight, and then consolidated in a helium atmosphere at about 1500.degree. C. to convert the porous soot body into a glass. The consolidated core rod is elongated using an oxygen-hydrogen torch that creates a layer of OH ions on the surface of the rod that are largely removed by plasma etching. Finally, the core rod is installed in a glass tube 40 having a suitably low OH content. Thereafter, the tube is collapsed onto the rod to create a preform 60. Conventional methods are employed for drawing an optical fiber from the preform and applying one or more protective coatings 75, 76. The disclosed method is suitable for commercial production of low-OH fiber. Significantly, the fiber's loss at 1385 nm is reduced to a level that is less than its loss at 1310 nm, thereby rendering the entire wavelength region 1200-1600 nm suitable for optical transmission. In particular, wave-division-multiplex systems are now available to transmit optical signals over distances greater than 10 km in the wavelength region between 1360 nm and 1430 nm.

Abstract translation: 公开了在1385nm具有非常低的损耗的单模光纤700及其制造方法。 使用蒸汽轴向沉积制造芯棒20以具有小于7.5的沉积包层/芯部比（D / d）。 芯棒在约1200℃的含氯或含氟气氛中脱水，以将OH的存在量减少到小于0.8重量％，然后在约1500℃的氦气氛中固结。 将多孔烟炱体转化为玻璃。 使用氧 - 氢焰炬拉长固结的芯棒，其在杆的表面上产生通过等离子体蚀刻大量去除的OH离子层。 最后，将芯棒安装在具有适当低的OH含量的玻璃管40中。 此后，管被折叠到杆上以产生预制件60.采用常规方法从预成型件拉制光纤并施加一个或多个保护涂层75,76。所公开的方法适用于低OH的商业生产 纤维。 值得注意的是，1385nm处的光纤损耗降低到1310nm以下的损耗，从而使整个波长范围为1200-1600nm，适合于光传输。 特别地，波分复用系统现在可用于在1360nm和1430nm之间的波长区域中发射超过10km的距离的光信号。

公开(公告)号：US5141786A

公开(公告)日：1992-08-25

申请号：US485954

申请日：1990-02-27

Applicant: Takaaki Shimizu ,  Masatoshi Takita

Inventor： Takaaki Shimizu ,  Masatoshi Takita

IPC: C03B8/02 ,  C03B19/06 ,  C03B19/10 ,  C03B19/12 ,  C03C1/00 ,  C03C3/06

CPC classification number: C03C3/06 ,  C03B19/06 ,  C03B19/066 ,  C03B19/1065 ,  C03B19/12 ,  C03B20/00 ,  C03C1/006 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/23 ,  C03C2201/23 ,  C03C2203/26 ,  Y10S65/90 ,  Y10T428/131 ,  Y10T428/1314

Abstract: A synthetic silica glass article made by hydrolyzing an alkoxysilane and thermally sintering the resulting silica; this synthetic silica glass article has a viscosity of not lower than 10.sup.10 poise at 140.degree. C., and contains, as metallic impurities, less than 1 ppm at Al, less than 0.2 ppm of Fe, less than 0.2 ppm of Na, less than 0.2 ppm of K, less than 0.01 ppm of Li, less than 0.2 ppm of Ca, less than 0.02 ppm of Ti, less than 0.01 ppm of B, less than 0.01 of P, less than 0.01 ppm of As.

公开(公告)号：US5106402A

公开(公告)日：1992-04-21

申请号：US590431

申请日：1990-09-27

Applicant: Peter E. E. Geittner ,  Hans-Jurgen E. Hagemann ,  Hans-Jurgen Lydtin

Inventor： Peter E. E. Geittner ,  Hans-Jurgen E. Hagemann ,  Hans-Jurgen Lydtin

IPC: G02B6/00 ,  C03B37/012 ,  C03B37/018

CPC classification number: C03B37/018 ,  C03B37/01211 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2203/24

Abstract: In the manufacture of preforms for optical fibres, the materials of the core (.alpha.) and of the light-conducting cladding layer (.beta..sub.1) are previously deposited from the gaseous phase. Deposition time is here considerably reduced in that only the materials of the core (.alpha.) and a part of the light-conducting cladding layer (.beta..sub.1) are deposited from the gaseous phase and the remaining light-conducting cladding material (.beta..sub.2 +.beta..sub.3) is supplied as pre-formed tubes of cladding material.

Abstract translation: 在制造光纤预成型件时，预先从气相沉积芯（α）和导光包层（β1）的材料。 在这里沉积时间显着减少，因为只有芯（α）的材料和导光包层（β1）的一部分从气相和剩余的导光包层材料（β2+β 3）作为预成型的包层材料管提供。

公开(公告)号：US4938788A

公开(公告)日：1990-07-03

申请号：US291258

申请日：1988-12-28

Applicant: Hideaki Segawa ,  Koji Tsukuma ,  Shinichi Kondo ,  Keishi Honta

Inventor： Hideaki Segawa ,  Koji Tsukuma ,  Shinichi Kondo ,  Keishi Honta

IPC: C03B20/00 ,  C03B19/06 ,  C03B19/09 ,  C03B32/00 ,  C03B37/012

CPC classification number: C03B37/01297 ,  C03B19/06 ,  C03B19/066 ,  C03B19/09 ,  C03B20/00 ,  C03B32/00 ,  C03B37/01282 ,  C03B2201/04 ,  Y10S65/90

Abstract: A method of producing a uniform silica glass block comprising using silica powder as a raw material, and treating it at high temperature and pressure by a hot press and/or a hot isostatic press in vacuum or in an inert gas atmosphere, preferably with a capsule of silica glass or a high-melting point metal. By conducting calcination in fluorine, chlorine or their compound gas and then in oxygen, the OH group content of the silica glass can be reduced dramatically.

公开(公告)号：US4235615A

公开(公告)日：1980-11-25

申请号：US11267

申请日：1979-02-09

Applicant: Karlheinz Rau ,  Albert Muhlich ,  Fritz Simmat ,  Norbert Treber

Inventor： Karlheinz Rau ,  Albert Muhlich ,  Fritz Simmat ,  Norbert Treber

IPC: C03B23/047 ,  C03B23/207 ,  C03B37/012 ,  C03C13/04 ,  G02B6/00 ,  C03C25/02

CPC classification number: C03B23/207 ,  C03B23/047 ,  C03B37/01211 ,  C03C13/045 ,  C03B2201/02 ,  C03B2201/04 ,  C03B2201/12 ,  Y10S65/16 ,  Y10T428/2933

Abstract: A semiproduct for use in the manufacture of light conducting fibers comprising a core of synthetic quartz glass having a thickness of 6 to 400 mm, the quartz glass containing less than 10 ppm hydroxyl ions and having, in the near infrared spectral range, an optical loss totaling less than 4 dB/km, measured in the mass, the core being fused with a jacket having a wall thickness of 2 to 20 mm and consisting essentially of synthetic quartz glass containing more than 4,000 ppm of fluorine, the jacket having a length of at least 200 mm; a method of producing the same and light conducting fibers derived therefrom.

Abstract translation: 一种用于制造导光纤维的半成品，其包括厚度为6至400mm的合成石英玻璃芯，所述石英玻璃含有小于10ppm的羟基离子，并且在近红外光谱范围内具有光损耗 总共小于4dB / km，以质量测量，芯部与壁厚为2至20mm的护套熔合并且基本上由含有大于4,000ppm氟的合成石英玻璃组成，该护套的长度为 至少200毫米; 其制造方法和由其衍生的导光纤维。