公开(公告)号：US20030086667A1

公开(公告)日：2003-05-08

申请号：US09996632

申请日：2001-11-28

Inventor： George E. Berkey ,  Daiping Ma ,  Snigdharaj K. Mishra

IPC: G02B006/16

CPC classification number: G02B6/02266 ,  C03B2201/02 ,  C03B2201/31 ,  C03B2203/24 ,  C03B2203/36 ,  C03C13/045 ,  C03C25/1065 ,  G02B6/02019 ,  G02B6/02285 ,  G02B6/02395 ,  G02B6/0281 ,  G02B6/03611

Abstract: An optical waveguide fiber having a relatively large effective area which exhibits low attenuation, low PMD and low microbending sensitivity. A step-index refractive index profile is advantageously used.

Abstract translation: 具有相对较大有效面积的光波导光纤，其具有低衰减，低PMD和低微弯灵敏度。 有利地使用阶梯折射率折射率分布。

公开(公告)号：US06542683B1

公开(公告)日：2003-04-01

申请号：US09462739

申请日：2000-01-13

Applicant: Alan Frank Evans ,  Carlton Maurice Truesdale

Inventor： Alan Frank Evans ,  Carlton Maurice Truesdale

IPC: G02B622

CPC classification number: G02B6/03694 ,  C03B37/027 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/36 ,  C03B2205/40 ,  C03C13/046 ,  G02B6/03661 ,  G02B6/03688

Abstract: Suppression of stimulated Brillouin scattering (SBS) by broadening the energy spectrum of participating SBS photons and/or phonons is achieved in an optical fiber having a core with both radially nonuniform viscosity and CTE profiles provided by alternating layers of glass modifying dopants such as phosphorous and fluorine. The nonuniform thermal expansion and viscosity profiles impart a residual, permanent, nonuniform stress in the fiber. The SBS suppressing effect provided by the nonuniform stress can be controlled and enhanced by applying a uniform or nonuniform tensile force to the fiber as it is being drawn. A preform for the fiber is also disclosed.

Abstract translation: 通过扩展参与的SBS光子和/或声子的能谱来抑制受激布里渊散射（SBS），在具有径向不均匀粘度和CTE曲线的核心的光纤中实现，该曲线由玻璃修饰掺杂剂如磷和 氟。 不均匀的热膨胀和粘度特性在纤维中赋予残余的，永久的，不均匀的应力。 通过在拉伸时对纤维施加均匀或不均匀的拉伸力，可以控制和增强由不均匀应力提供的SBS抑制效果。 还公开了一种用于纤维的预制件。

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：US06253580B1

公开(公告)日：2001-07-03

申请号：US08994970

申请日：1997-12-19

Applicant: Mikhail Ivanovich Gouskov ,  Evguenic Borisovich Danilov ,  Mohammad Afzal Aslami ,  Dau Wu

Inventor： Mikhail Ivanovich Gouskov ,  Evguenic Borisovich Danilov ,  Mohammad Afzal Aslami ,  Dau Wu

IPC: C03B37013

CPC classification number: C03B37/01426 ,  C03B37/01205 ,  C03B2201/02 ,  C03B2201/12

Abstract: An apparatus and method for producing a tubular member, which is suitable for use as a starter tube or an optical fiber preform, on a rotating cylindrical target mounted on a lathe. The tubular member is made by means of plasma outside vapor deposition. In this process, a source gas comprising SiCl4 and, optionally, a fluorine-laden chemical, is introduced into an air plasma. Both the air and the source gas are dry gases and have low hydroxyl content. The air plasma is created by a high-frequency induction plasma torch which travels along the length of the target on a carriage. The torch is provided with a short U-shaped gutter on either side of its rim directly beneath the target and the growing tubular member. This gutter helps channel reaction products of the source gas and the plasma so as to enhance deposition on the growing tubular member. The torch is further provided with an induction coil having a plurality of windings, the uppermost winding being maintained a predetermined distance from the surface of the tubular member as the latter is built up.

Abstract translation: 一种在安装在车床上的旋转圆柱形靶上制造适合用作起动管或光纤预制棒的管状部件的装置和方法。 管状构件通过等离子体外部气相沉积制成。 在该方法中，将包含SiCl 4和任选的含氟化学品的源气体引入空气等离子体中。 空气和源气都是干燥气体，羟基含量低。 空气等离子体是通过高速感应等离子体焰炬而产生的，该等离子体焰炬沿着目标的长度在滑架上行进。 火炬在其边缘的任一侧的任一侧设置有短的U形沟槽，直接在目标下方和生长的管状构件。 该沟槽有助于源气体和等离子体的反应产物，以增强生长的管状构件上的沉积。 割炬还设置有具有多个绕组的感应线圈，最上面的绕组保持与管状构件的表面预定距离，因为它们被构建。

公开(公告)号：US5711903A

公开(公告)日：1998-01-27

申请号：US698287

申请日：1996-08-14

Applicant: Takeshi Yagi ,  Masato Oku ,  Takayuki Morikawa ,  Tsuguo Sato ,  Kazuaki Yoshida

Inventor： Takeshi Yagi ,  Masato Oku ,  Takayuki Morikawa ,  Tsuguo Sato ,  Kazuaki Yoshida

IPC: C01B33/12 ,  C03B37/012 ,  B29D11/00 ,  B27N3/00 ,  B29C59/00

CPC classification number: C01B33/126 ,  C01B33/12 ,  C03B37/0128 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/42

Abstract: The present invention provides a method of manufacturing a porous preform for an optical fiber, including the steps of removing impure particles from silica powder while being stirred in an alkaline liquid phase, and obtaining the porous preform for an optical fiber by applying the powder forming method to the silica powder used as a main raw material. The present invention further has a method of manufacturing a porous preform for an optical fiber, including the step of preparing a forming material by adding fine particles having a particle diameter satisfying the following formula (I) to the silica powder, and obtaining the porous preform by applying the powder forming method to the forming material: ##EQU1## wherein d: diameter of fine particles, and D: diameter of silica powder.

Abstract translation: 本发明提供一种制造光纤用多孔预成型体的方法，包括以下步骤：在碱性液相中搅拌的同时从二氧化硅粉末中除去不纯的颗粒，并通过施加粉末形成方法获得光纤用多孔预成型体 以二氧化硅粉末为主要原料。 本发明还涉及一种制造光纤用多孔预成型体的方法，包括通过将具有下述通式（I）的粒径的微粒添加到二氧化硅粉末中而制备成形材料的步骤，得到多孔预成型体 通过对成形材料施加粉末形成方法：其中d：细颗粒直径，D：二氧化硅粉末的直径。

公开(公告)号：US5194714A

公开(公告)日：1993-03-16

申请号：US533557

申请日：1990-06-05

Applicant: Christian Le Sergent

Inventor： Christian Le Sergent

IPC: C03B37/018 ,  C03B20/00 ,  C03B37/014 ,  C03C17/245

CPC classification number: C03B37/01426 ,  C03B37/01413 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2207/81

Abstract: Method of outside plasma deposition onto a rod (17,22) of silica substantially free from hydroxyl ions, possibly doped to change its refractive index, by reaction with oxygen of a silicon compound and possibly of doping compounds, in the presence of a gas plasma raised to a very high temperature (16) by induction with the help of a high frequency generator (15). The rod on which the silica deposit is made is kept in a sealed chamber (19) separated from the surrounding atmosphere and supplied by a pipe (20) with atmospheric air that is successively passed through a filter (31), a compressor (32) a cooling means (33), a condensation water drain (35) and a final desiccation by adsorption (36, 38). A device for implementing the method is also claimed.

Abstract translation: 在气体等离子体存在下，通过与硅化合物的氧反应和可能的掺杂化合物的反应，外部等离子体沉积到基本上不含羟基离子的二氧化硅的棒（17,22）上，其可能被掺杂以改变其折射率 借助于高频发生器（15），通过感应升高到非常高的温度（16）。 将制备二氧化硅沉积物的棒保持在与周围大气分离的密封室（19）中，并通过管道（20）供应连续通过过滤器（31），压缩机（32）的大气， 冷却装置（33），冷凝水排放口（35）和通过吸附的最终干燥（36,38）。 还要求用于实现该方法的装置。

公开(公告)号：US5149349A

公开(公告)日：1992-09-22

申请号：US728276

申请日：1991-07-11

Applicant: George E. Berkey ,  Robert M. Hawk ,  Steven H. Tarcza

Inventor： George E. Berkey ,  Robert M. Hawk ,  Steven H. Tarcza

IPC: C03B37/012 ,  C03B37/014 ,  C03B37/027 ,  G02B6/024

CPC classification number: C03B37/02754 ,  C03B37/01217 ,  C03B37/01225 ,  C03B37/01231 ,  C03B37/01234 ,  C03B37/01248 ,  C03B37/01446 ,  C03B37/01473 ,  C03B37/01493 ,  C03B37/02709 ,  C03B2201/02 ,  C03B2201/08 ,  C03B2203/30 ,  C03B2203/302 ,  C03B2205/08 ,  C03B2205/12

Abstract: Disclosed is a method of making a polarization retaining single-mode optical fiber. There is initially formed a draw blank having diametrically opposed longitudinal apertures in the cladding glass parallel to the core glass region. The draw blank is drawn into a fiber under such conditions that the apertures close as the fiber is being drawn. The flow of surrounding glass, including the core glass region, toward the collapsing apertures, causes the core to assume an elliptical shape. The apertures are of such cross-sectional area and spacing from the core that the core develops the desired aspect ratio.

公开(公告)号：US5096479A

公开(公告)日：1992-03-17

申请号：US634865

申请日：1991-01-03

Applicant: Joseph I. H. Allen ,  Ian G. Sayce ,  John A. Winterburn

Inventor： Joseph I. H. Allen ,  Ian G. Sayce ,  John A. Winterburn

IPC: C03B20/00 ,  C03B23/047 ,  C03B29/02 ,  C03B29/04 ,  C03B32/00 ,  C03B37/012 ,  C03C23/00

CPC classification number: C03B37/01205 ,  C03B23/047 ,  C03B29/02 ,  C03B29/04 ,  C03B32/00 ,  C03C23/00 ,  C03B2201/02

Abstract: The method of enhancing purity of a fused quartz body having opposed boundary surfaces, includes the steps of maintaining the body at a temperature above 1000.degree. C. and at the same time applying a polarizing potential across the boundary surfaces by electrodes in contact with the boundary surfaces so that at least some of the residual impurity ions in it are made to migrate away from one of the boundary surfaces towards the opposite one of the boundary surfaces thereof and are subsequently discharged at the opposite boundary surface. To avoid surface contamination or deformation each of the electrodes is a gaseous electrode of an at least partially ionized helium, argon, neon, krypton, xenon, nitrogen or hydrogen gas or a flame produced by combustion of hydrogen, methane, propane, butane or acetylene. The temperature during the maintaining step is advantageously from 1500.degree. C. to 2100.degree. C., the polarizing potential applied across the boundary surfaces advantageously exceeds 10 volts per mm body thickness and the duration of the maintaining at these temperatures is at least 10 seconds per mm thickness.

Abstract translation: PCT No.PCT / GB89 / 00960 Sec。 371日期1991年1月3日 102（e）日期1991年1月3日PCT PCT 1989年8月17日PCT公布。 公开号WO90 / 02103 1990年3月8日。提高具有相对边界面的熔融石英体的纯度的方法包括以下步骤：将身体保持在1000℃以上的温度，同时在边界面上施加极化电位 通过与边界表面接触的电极，使得其中的至少一些剩余杂质离子从其中一个边界表面朝向其相邻的一个边界表面迁移，随后在相对的边界表面排出。 为了避免表面污染或变形，每个电极是至少部分电离的氦气，氩气，氖气，氪气，氙气，氮气或氢气的气态电极或由氢气，甲烷，丙烷，丁烷或乙炔燃烧产生的火焰 。 保持步骤期间的温度有利地为1500℃至2100℃，跨过边界面施加的极化电势有利地超过每毫米体积10伏特，并且在这些温度下保持的持续时间为至少10秒 mm厚度。

公开(公告)号：US4816250A

公开(公告)日：1989-03-28

申请号：US478333

申请日：1983-03-24

Applicant: Gordon R. B. Skinner ,  Alexander Buchan

Inventor： Gordon R. B. Skinner ,  Alexander Buchan

IPC: C03B37/023 ,  C03B37/027 ,  C03C13/04 ,  A61K39/245

CPC classification number: C03B37/023 ,  C03B37/027 ,  C03C13/045 ,  C03B2201/02 ,  C03B2201/31 ,  C03B2203/24 ,  C03B2203/36 ,  Y02P40/57

Abstract: A vaccine against a DNA virus, for exmaple, Herpes simplex virus, is prepared by incubating a cell sample which has been infected with the virus, releasing the nuclei in the infected cell material from the cytoplasmic fraction of that material, chemically fixing the polypeptide chains in the cytoplasmic fraction, and forming a precipitate which includes the virus antigens in the cytoplasmic fraction, the precipitate providing the active constituent of the vaccine. A characteristic strain of the virus is preferred, and transfers its characteristics to the vaccine so that vaccinated subjects may subsequently be distinguished from infected subjects.

Abstract translation: 通过孵育已经感染病毒的细胞样品，将感染的细胞材料中的细胞核从该材料的细胞质部分释放出来，化学地固定多肽链，制备针对DNA病毒的疫苗，例如单纯疱疹病毒 并在细胞质级分中形成包含病毒抗原的沉淀物，提供疫苗的活性成分。 病毒的特征菌株是优选的，并且将其特征转移到疫苗，使得接种疫苗的受试者随后可以与被感染的受试者区分开来。

公开(公告)号：US4518407A

公开(公告)日：1985-05-21

申请号：US124380

申请日：1980-02-25

Applicant: Philip W. Black ,  John Irven

Inventor： Philip W. Black ,  John Irven

IPC: C03B37/00 ,  C03B37/012 ,  C03B37/018 ,  C03B37/027 ,  G02B6/00 ,  C03B37/07

CPC classification number: C03B37/02754 ,  C03B37/01211 ,  C03B37/01248 ,  C03B37/01807 ,  C03B2201/02 ,  C03B2201/08 ,  C03B2203/28 ,  C03B2205/14 ,  C03B2205/16 ,  Y10S65/16

Abstract: A rod of silica 14 is inserted into a substrate tube 10 whose bore is lined with a layer 11 of material having a refractive index less than that of silica. This layer 11 is itself covered with a layer 12 of silica. The assembly of the rod and tube is drawn into fibre, or its components are fused together to form a solid cross-section optical fibre preform.

Abstract translation: 将二氧化硅14的棒插入衬底管10中，衬底管10的孔衬有折射率小于二氧化硅的材料层11。 该层11本身被二氧化硅层12覆盖。 将棒和管的组件拉制成纤维，或将其组件熔合在一起以形成实心的横截面光纤预制件。