公开(公告)号：US20060174651A1

公开(公告)日：2006-08-10

申请号：US10547053

申请日：2004-02-20

Applicant: Yasuo Ohama ,  Hiroshi Matsui

Inventor： Yasuo Ohama ,  Hiroshi Matsui

IPC: C03B19/09

CPC classification number: C03B19/095 ,  C03B2201/04 ,  C30B15/10

Abstract: The present invention refers to a method for producing a quartz glass crucible for use in pulling silicon single crystal, said crucible having at least a double-layer structure comprising a pore-free transparent inner layer and an opaque base body or outer layer having pores, characterized in that at least the base body is formed with a silica powder maintained in a gas having a mixing ratio of 0.0005 to 0.0065 kg/kg (dry gas), and a quartz glass crucible produced by said production method. The obtained crucible has an average OH group concentration of 50 ppm or lower and is capable of suppressing the vibration occurring on the surface of silicon melt during pulling the silicon single crystal. Further the obtained crucible suffers less deformation of the crucible on pulling the silicon single crystal.

Abstract translation: 本发明涉及一种用于制造用于拉硅单晶的石英玻璃坩埚的方法，所述坩埚至少具有包含无孔透明内层和不透明基体或具有孔的外层的双层结构， 其特征在于，至少所述基体由保持在混合比为0.0005〜0.0065kg / kg（干燥气体）的气体中的二氧化硅粉末和由所述制造方法制造的石英玻璃坩埚形成。 得到的坩埚的OH基浓度的平均值为50ppm以下，能够抑制在拉伸硅单晶时在硅熔体表面发生的振动。 此外，所获得的坩埚在拉制硅单晶时受到较小的坩埚变形。

公开(公告)号：US20060137398A1

公开(公告)日：2006-06-29

申请号：US11148764

申请日：2005-06-08

Applicant: Daniel Bleaking ,  Dana Bookbinder ,  Richard Fiacco ,  Kenneth Hrdina ,  Pushkar Tandon ,  John Maxon ,  Kimberly Wilbert

Inventor： Daniel Bleaking ,  Dana Bookbinder ,  Richard Fiacco ,  Kenneth Hrdina ,  Pushkar Tandon ,  John Maxon ,  Kimberly Wilbert

IPC: C03B20/00 ,  C03C3/06

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/21 ,  C03B2201/23 ,  C03C2201/12 ,  C03C2201/21 ,  C03C2201/23

Abstract: Disclosed are high purity synthetic silica glass material having a high OH concentration homogeneity in a plane perpendicular to the optical axis, and process of making the same. The glass has high refractive index homogeneity. The glass can have high internal transmission of at least 99.65%/cm at 193 nm. The process does not require a post-sintering homogenization step. The controlling factors for high compositional homogeneity, thus high refractive index homogeneity, include high initial local soot density uniformity in the soot preform and slow sintering, notably isothermal treatment during consolidation.

公开(公告)号：US20060059948A1

公开(公告)日：2006-03-23

申请号：US10535935

申请日：2003-11-28

Applicant: Tatsuhiro Sato ,  Takahiro Kaitou ,  Akira Fujinoki ,  Toshiyuki Kato ,  Tohru Segawa ,  Nobumasa Yoshida

Inventor： Tatsuhiro Sato ,  Takahiro Kaitou ,  Akira Fujinoki ,  Toshiyuki Kato ,  Tohru Segawa ,  Nobumasa Yoshida

IPC: C03C25/64

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/20 ,  C03B2201/24 ,  C03C2201/02 ,  C03C2201/11 ,  C03C2201/23 ,  C03C2201/24 ,  C03C2201/26

Abstract: First of all, there is provided a production process of a synthetic quartz glass which has less impurity, has a high-temperature viscosity characteristic equal to or more than that of a natural quartz glass, and hardly deforms even in a high-temperature environment, and especially a production process of a highly heat resistant synthetic quartz glass which is free from the generation of bubbles and is dense. Secondly, there is provided a highly heat resistant synthetic quartz glass body which is easily obtained by the production process of the present invention, and especially a transparent or black quartz glass body which is free from the generation of bubbles, is dense, has high infrared absorption rate and emission rate, and has an extremely high effect for preventing diffusion of alkali metal. The process is a process of producing a highly heat resistant quartz glass body having an absorption coefficient at 245 nm of 0.05 cm−1 or more, and the silica porous body was subjected to a reduction treatment, followed by baking, thereby forming a dense glass body.

Abstract translation: 首先，提供了杂质少，具有等于或高于天然石英玻璃的高温粘度特性的合成石英玻璃的制造方法，即使在高温环境下也几乎不变形， 特别是高度耐热的合成石英玻璃的生产过程，其不产生气泡并且致密。 其次，提供了通过本发明的制造方法容易获得的高耐热性合成石英玻璃体，特别是不产生气泡的透明或黑色石英玻璃体，具有高红外 吸收率和排放率，对防止碱金属的扩散具有极高的效果。 该方法是生产具有245nm的吸收系数为0.05cm -1以上的高耐热性石英玻璃体的工序，对二氧化硅多孔体进行还原处理，其次是 烘烤，从而形成致密的玻璃体。

公开(公告)号：US06943935B2

公开(公告)日：2005-09-13

申请号：US10094530

申请日：2002-03-08

Applicant: Scott R. Bickham ,  David G. Dalgoutte ,  James M. Grochocinski ,  Michael Vasilyev

Inventor： Scott R. Bickham ,  David G. Dalgoutte ,  James M. Grochocinski ,  Michael Vasilyev

IPC: G02B6/036 ,  C03B37/014 ,  G02B6/34 ,  G02F1/35 ,  H01S3/10 ,  H01S3/30 ,  H04B10/02 ,  H04B10/18 ,  H01S3/00 ,  H04J14/02

CPC classification number: G02B6/0285 ,  C03B37/01446 ,  C03B2201/04 ,  G02B6/02019 ,  G02B6/02261 ,  G02B6/0228 ,  G02B6/03677 ,  G02B6/29377 ,  H04B10/25253 ,  Y02P40/57

Abstract: An apparatus for transporting an optical signal is provided. The apparatus includes sections of optical fiber span with at least one section negative dispersion, negative slope fiber positioned at a distance from the output. A pump light emitting device optically coupled to the optical fiber span near the output is provided for generating an amplification signal.

Abstract translation: 提供一种用于传输光信号的装置。 该装置包括具有至少一个部分负色散的光纤跨段，负斜率光纤位于离输出一段距离处。 提供光学耦合到输出附近的光纤跨距的泵浦发光装置，用于产生放大信号。

公开(公告)号：US20050000253A1

公开(公告)日：2005-01-06

申请号：US10874456

申请日：2004-06-23

Applicant: Kang Xie ,  Shuqiang Zhang ,  Qingrong Han ,  Tiejun Wang ,  Chenghou Tu ,  Raji Matai

Inventor： Kang Xie ,  Shuqiang Zhang ,  Qingrong Han ,  Tiejun Wang ,  Chenghou Tu ,  Raji Matai

IPC: C03B37/018

CPC classification number: C03B37/01892 ,  C03B37/01807 ,  C03B37/0183 ,  C03B37/01853 ,  C03B37/01861 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/22 ,  C03B2201/31 ,  C03B2207/30 ,  C03B2207/32

Abstract: The present invention directs to a method of manufacturing low water peak single mode optical fiber, which comprises performing deposition in a substrate tube using PCVD technology, whereby a deposited layer of a certain construction design is formed on the inner wall of the substrate tube, melt contracting the substrate tube into a solid core rod according to melt contraction technology, producing an optical fiber preform by combining the core rod and a jacket tube of low hydroxyl content by means of RIT technology or by depositing an outer cladding on the outer surface of the core rod using OVD technology, sending the optical fiber preform into a fiber drawing furnace to draw it into an optical fiber, wherein: in the PCVD technology, the content of impurities in a gas mixture of raw materials, which is characterized by the infrared spectrum transmissivity thereof, is required to a transmissivity of 90% or greater, the water content in O2 is 100 ppb or less, the water content in C2F6 is 1000 ppb or less, the hydroxyl content of the substrate tube is 1000 ppb or less, the dynamic leak rate of a deposition machine is 1.0×10−5 mbar·l/s or less; during melt contraction of the substrate tube, the dynamic leak rate of a melt contraction machine is 1.0×10−5 mbar·l/s or less; the hydroxyl content of the jacket tube of low hydroxyl content is required to be 10 ppm or less; the relative humidity of environment during the process of manufacture is 25% or less; the ratio of the cladding diameter to the core layer diameter (b/a value) in the waveguide structure of the optical fiber is from 2.0 to 7.0.

Abstract translation: 本发明涉及制造低水峰单模光纤的方法，其包括使用PCVD技术在衬底管中进行沉积，由此在衬底管的内壁上形成一定的结构设计的沉积层，熔化 根据熔体收缩技术将衬底管收缩成实心芯棒，通过RIT技术将芯棒和低羟基含量的护套管组合在一起，或通过在外部表面上沉积外包层来生产光纤预制棒 使用OVD技术将光纤预制棒发送到光纤拉丝炉中，将其拉入光纤中，其中：在PCVD技术中，原料气体混合物中的杂质含量，其特征在于红外光谱 透过率为90％以上，O 2的含水量为100ppb以下，C2F6的含水量 为1000ppb以下，基材管的羟基含量为1000ppb以下，沉积机的动态泄漏率为1.0×10 -5 mbar·l / s以下。 在基材管熔融收缩期间，熔体收缩机的动态泄漏率为1.0×10 -5 mbar·l / s以下; 低羟基含量的护套的羟基含量为10ppm以下; 制造过程中环境的相对湿度为25％以下; 光纤的波导结构中的包层直径与芯层直径的比（b / a值）为2.0〜7.0。

公开(公告)号：US20040213724A1

公开(公告)日：2004-10-28

申请号：US10481063

申请日：2004-03-17

Inventor： Masaki Kusuhara ,  Hiroyuki Watanabe ,  Hirofumi Uehara ,  Keiko Sanpei ,  Naoyasu Kurita ,  Shuichi Tada ,  Jinichi Omi ,  Makio Takahashi ,  Hiroshi Morita

IPC: C01B033/12 ,  C03C003/06

CPC classification number: C03B19/1065 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/23 ,  C03C1/026 ,  C03C3/06 ,  C03C2201/02

Abstract: High purity synthetic quartz glass particles are derived from alkali metal silicate and have a total amount of metal impurities content of at least 1 nullg/g and, in particular, have oxygen-deficient defects. The high-purity synthetic quartz glass particles having high viscosity similar to natural quartz and high-purity similar to known synthetic quartz can be provided at a low cost.

Abstract translation: 高纯度合成石英玻璃颗粒来源于碱金属硅酸盐，并且金属杂质含量的总量至少为1mug / g，特别是具有缺氧缺陷。 可以以低成本提供与天然石英相似的高粘度和类似于已知的合成石英的高纯度的高纯度合成石英玻璃颗粒。

公开(公告)号：US06732549B1

公开(公告)日：2004-05-11

申请号：US09708148

申请日：2000-11-08

Applicant: Richard M Lum ,  David A Mixon ,  Eric M Monberg ,  Dennis J Trevor

Inventor： Richard M Lum ,  David A Mixon ,  Eric M Monberg ,  Dennis J Trevor

IPC: C03B37027

CPC classification number: C03B19/12 ,  C03B2201/04

Abstract: A process produces a glass overcladding tube from a silica gel body. The process includes passing the gel body through a hot zone under conditions that cause partial sintering of the gel body and repassing the gel body through the hot zone under conditions that further sinter the gel body into a glass overcladding tube.

Abstract translation: 一种工艺从硅胶体制造玻璃外包管。 该方法包括使凝胶体通过热区，在引起凝胶体部分烧结的条件下，并且在将凝胶体进一步烧结成玻璃外包管的条件下，通过热区重新分解凝胶体。

公开(公告)号：US20040057692A1

公开(公告)日：2004-03-25

申请号：US10231865

申请日：2002-08-28

Inventor： Laura J. Ball ,  Bruno P. M. Baney ,  Dana C. Bookbinder ,  Keith L. House ,  Rostislav R. Khrapko ,  Susan L. Schiefelbein

IPC: G02B006/00

CPC classification number: C03C3/06 ,  C03B37/01211 ,  C03B37/01228 ,  C03B37/01426 ,  C03B37/01807 ,  C03B37/01861 ,  C03B37/01892 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2203/26 ,  C03B2207/30 ,  C03B2207/90 ,  C03C25/602 ,  C03C25/607 ,  C03C25/68 ,  C03C2201/11 ,  C03C2201/23 ,  C03C2201/50 ,  C03C2203/50 ,  G02B6/02

Abstract: A method of forming an alkali metal oxide-doped optical fiber by diffusing an alkali metal into a surface of a glass article is disclosed. The silica glass article may be in the form of a tube or a rod, or a collection of tubes or rods. The silica glass article containing the alkali metal, and impurities that may have been unintentionally diffused into the glass article, is etched to a depth sufficient to remove the impurities. The silica glass article may be further processed to form a complete optical fiber preform. The preform, when drawn into an optical fiber, exhibits a low attenuation.

Abstract translation: 公开了一种通过将碱金属扩散到玻璃制品的表面中形成掺杂碱金属氧化物的光纤的方法。 石英玻璃制品可以是管或棒的形式，或者是管或棒的集合。 含有碱金属的二氧化硅玻璃制品和可能已经无意地扩散到玻璃制品中的杂质被蚀刻到足以除去杂质的深度。 石英玻璃制品可以进一步加工以形成完整的光纤预型件。 当预成型件被拉入光纤时，表现出低的衰减。

公开(公告)号：US20030140659A1

公开(公告)日：2003-07-31

申请号：US10296089

申请日：2002-11-22

Inventor： Heinz Fabian

IPC: C03B037/028

CPC classification number: C03B37/01211 ,  C03B37/014 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/12

Abstract: In a known procedure for the manufacture of an optical fiber by drawing from a preform with a core-clad structure or from a coaxial arrangement of several components forming a core-clad structure, a core cylinder is produced with a soot deposition method, with the core cylinder having a core glass layer of a higher refractive index, nullnKnull, and outer diameter, nulldKnull, said core glass layer being encased by a first cladding glass layer having a lower refractive index, nullnM1null, and outer diameter, nulldM1null, followed by applying a second cladding glass layer onto the core cylinder. The modification of this procedure according to the invention is characterized by its lower optical fiber production costs. This is achieved by providing the second cladding glass layer (4) in the form of a cladding tube manufactured in a separate step of the procedure, said cladding tube having a mean OH concentration of max. 1 wt.-ppm, and applying the second cladding glass layer (4) by collapsing the cladding tube onto the core cylinder (2; 3), and by using a core cylinder with a nulldM1null/nulldKnull ratio between 1 and 2.2 and a mean OH concentration of max. 1 wt-ppm in its superficial area up to a depth of 10 nullm (FIG. 1).

Abstract translation: 在通过从具有芯包层结构的预成型件或由形成芯包层结构的多个部件的同轴布置拉制制造光纤的已知方法中，使用烟灰沉积方法制造芯筒， 具有较高折射率的核心玻璃层“nK”和外径“dK”的芯部圆筒，所述芯部玻璃层被具有较低折射率的第一包层玻璃层“nM1”和外径 ，“dM1”，然后在核心圆筒上施加第二包层玻璃层。 根据本发明的该过程的修改的特征在于其较低的光纤生产成本。 这是通过在步骤的单独步骤中提供以包层管形式形成的第二包覆玻璃层（4）来实现的，所述包层管的平均OH浓度为最大。 1重量ppm，并且通过将包层管折叠到芯筒（2; 3）上并通过使用具有“dM1”/“dK”比的芯筒在1和1之间施加第二包层玻璃层 2.2和平均OH浓度最大。 在其表层面积为1重量ppm至10微米深度（图1）。

公开(公告)号：US20030110811A1

公开(公告)日：2003-06-19

申请号：US10304844

申请日：2002-11-26

Applicant: SINGLE MODE OPTICAL FIBER AND MANUFACTURING METHOD THEREFOR

Inventor： Tomohiro Nunome ,  Hiroshi Kutami ,  Manabu Saitou ,  Kenji Okada ,  Munehisa Fujimaki ,  Koichi Harada

IPC: C03B037/025

CPC classification number: C03B37/01413 ,  C03B37/02718 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2205/56 ,  G02B6/03622 ,  Y02P40/57

Abstract: An optical fiber is formed by performing vapor phase deposition of SiO2 on the outside of a glass rod comprising a core section and a first cladding section and drawing a glass preform which formed by a second cladding section. Also, a single mode optical fiber is manufactured so that the ratio of the diameter D of the first cladding section and the diameter d of the core section is in a range of 4.0 to 4.8, and OH concentration is 0.1 ppm or less. Also, an optical fiber is manufactured so that a value of D/d>4.8, and the OH concentration is 0.1 ppm or less. It is thereby possible to maintain an initial loss in the 1380 nm wavelength range even if hydrogen diffusion occurs.

Abstract translation: 通过在包括芯部和第一包层部分的玻璃棒的外部进行SiO 2的气相沉积并且拉制由第二包层部形成的玻璃预制件来形成光纤。 此外，制造单模光纤，使得第一包层部分的直径D和芯部分的直径d的比率在4.0至4.8的范围内，并且OH浓度为0.1ppm或更小。 此外，制造光纤，使得D / d> 4.8，OH浓度为0.1ppm以下。 因此即使发生氢扩散，也可以保持1380nm波长范围的初始损耗。