公开(公告)号：US08263511B2

公开(公告)日：2012-09-11

申请号：US12644563

申请日：2009-12-22

Applicant: Carlos Duran ,  Richard Michael Fiacco ,  Kenneth Edward Hrdina ,  Daniel Raymond Sempolinski

Inventor： Carlos Duran ,  Richard Michael Fiacco ,  Kenneth Edward Hrdina ,  Daniel Raymond Sempolinski

IPC: C03C3/06 ,  C03B25/00

CPC classification number: C03B25/02 ,  C03B19/1453 ,  C03B2201/03 ,  C03B2201/04 ,  C03C3/06 ,  C03C2201/22 ,  C03C2201/23

Abstract: A fused silica glass article having a low absolute refractive index and low concentrations of hydroxyl groups, halogens, and metal having a low absolute refractive index. The glass article contains less than about 10 ppm protium-containing and deuterium-containing hydroxyl groups by weight and less than about 20 ppm halogens by weight. The silica glass article also has an absolute refractive index (ARI) less than or equal to 1.560820. In one embodiment, the ARI of the fused silica article is achieved by lowering the fictive temperature of the fused silica. A method of lowering the fictive temperature is also described.

Abstract translation: 具有低绝对折射率和低浓度羟基，卤素和具有低绝对折射率的金属的熔融石英玻璃制品。 玻璃制品含有重量少于约10ppm含氘羟基和重量小于约20ppm的卤素。 石英玻璃制品的绝对折射率（ARI）也小于或等于1.560820。 在一个实施方案中，熔融二氧化硅制品的ARI通过降低熔融二氧化硅的假想温度来实现。 还描述了降低虚构温度的方法。

公开(公告)号：US08245542B2

公开(公告)日：2012-08-21

申请号：US12801378

申请日：2010-06-04

Applicant: Stefan Ochs ,  Steffen Zwarg ,  Mirko Wittrin ,  Martin Trommer

Inventor： Stefan Ochs ,  Steffen Zwarg ,  Mirko Wittrin ,  Martin Trommer

IPC: C03B37/018

CPC classification number: C03B19/01 ,  C03B19/1453 ,  C03B37/01446 ,  C03B2201/04

Abstract: A known method for producing synthetic quartz glass comprises the method steps: (a) forming a cylindrical SiO2 soot body having an inner portion and at least one free cylinder jacket surface surrounding the inner portion; (b) thermally drying the porous soot body; and (c) vitrifying the dried soot body with formation of the cylinder from synthetic quartz glass. Starting therefrom, to indicate a method which permits a particularly flat radial distribution in the inner portion of the cylinder, it is suggested according to the invention that the dried SiO2 soot body that is present after method step b) should be subjected to a homogenizing method prior to vitrification, the homogenizing method comprising the following steps: (I) heating the soot body to a consolidation temperature to form a sealing layer in the area of the at least one cylinder jacket, the sealing layer sealing the inner portion to the outside; (II) cooling the soot body from the consolidation temperature; and (III) annealing the soot body in the range of a homogenization temperature during a period of at least 5 hours so that the radial profile of the hydroxyl group concentration flattens in the inner portion.

Abstract translation: 用于生产合成石英玻璃的已知方法包括以下方法步骤：（a）形成具有内部部分和围绕内部部分的至少一个自由圆筒形护套表面的圆柱形SiO 2烟灰体; （b）热干燥多孔烟炱体; 和（c）通过合成石英玻璃形成圆筒来使干燥的烟灰体玻璃化。 从此开始，为了表示允许气缸内部特别平坦的径向分布的方法，根据本发明，建议在方法步骤b）之后存在的干燥的SiO 2烟炱体应经受均匀化方法 在玻璃化之前，均化方法包括以下步骤：（I）将烟灰体加热至固化温度，以在至少一个气缸套的区域中形成密封层，密封层将内部部分密封到外部; （II）从固结温度冷却烟灰体; 和（III）在均匀化温度范围内在至少5小时的时间内使烟灰体退火，使得羟基浓度的径向分布在内部变平。

公开(公告)号：US08110277B2

公开(公告)日：2012-02-07

申请号：US12261586

申请日：2008-10-30

Applicant: Steven Roy Burdette ,  James Gerard Fagan ,  Daniel Raymond Sempolinski ,  Pattarin McLaren

Inventor： Steven Roy Burdette ,  James Gerard Fagan ,  Daniel Raymond Sempolinski ,  Pattarin McLaren

IPC: B32B3/10 ,  C03B23/00

CPC classification number: C03B19/1469 ,  C03B23/051 ,  C03B2201/04 ,  C03C23/0075 ,  Y10T428/24314

Abstract: A method of making a fused silica plate includes providing a fused silica blank having a length, a longitudinal axis, and an outer diameter. The method further includes forming a slot in the fused silica blank which extends from the outer diameter to a location at or offset from a center of the fused silica blank and is substantially parallel to the longitudinal axis of the fused silica blank. The slot is defined by a concave surface located at or offset from the center of the fused silica blank, a first side surface extending between a first edge of the concave surface and the outer diameter of the fused silica blank, and a second side surface extending between a second edge of the concave surface and the outer diameter of the fused silica blank. At least one of the first and second side surfaces are connected to the concave surface by a chamfered surface. The method further includes rolling out the fused silica blank having the slot to form a fused silica plate.

Abstract translation: 制造熔融石英板的方法包括提供具有长度，纵轴和外径的熔融石英坯料。 该方法还包括在熔融二氧化硅毛坯中形成从外径延伸到熔融二氧化硅毛坯的中心处或偏离熔融二氧化硅毛坯中心的位置并且基本上平行于熔融二氧化硅毛坯的纵向轴线的槽。 狭槽由位于熔融二氧化硅毛坯的中心或偏离的凹面限定，第一侧表面在凹面的第一边缘和熔融石英坯的外径之间延伸，第二侧表面延伸 在凹面的第二边缘和熔融二氧化硅毛坯的外径之间。 第一和第二侧表面中的至少一个通过倒角表面连接到凹面。 该方法还包括将具有该槽的熔融石英坯料推出以形成熔融石英板。

公开(公告)号：US07975507B2

公开(公告)日：2011-07-12

申请号：US11833397

申请日：2007-08-03

Applicant: Keigo Hino

Inventor： Keigo Hino

IPC: C03B19/06 ,  C03B8/04

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B2201/04 ,  C03B2201/23 ,  C03C2201/23

Abstract: The invention provides a process for producing a synthetic quartz glass, comprising: (a) depositing fine quartz glass particles synthesized by flame hydrolysis of a glass-forming material, on a substrate, to form a porous quartz glass base; (b) presintering the porous quartz glass base; (c) heat-treating the presintered porous quartz glass base by holding it under vacuum at a temperature in the range of from 1,100° C. to below the vitrification temperature for a certain time period; and (d) heating the thus heat-treated porous quartz glass base to a temperature not lower than the vitrification temperature to obtain a synthetic quartz glass. According to the process for synthetic quartz glass production of the invention, a synthetic quartz glass having a reduced OH group amount and a uniform OH group concentration can be obtained. From the synthetic quartz glass, an optical member having excellent optical properties can be obtained.

Abstract translation: 本发明提供了一种生产合成石英玻璃的方法，包括：（a）在基材上沉积通过玻璃形成材料的火焰水解合成的精细石英玻璃颗粒，以形成多孔石英玻璃基底; （b）预烧结多孔石英玻璃基底; （c）通过将预烧结的多孔石英玻璃基板在1100℃至低于玻璃化温度的温度下在真空下进行一段时间的热处理; 和（d）将由此热处理的多孔石英玻璃基底加热至不低于玻璃化温度的温度，以获得合成石英玻璃。 根据本发明的合成石英玻璃的制造方法，可以得到OH基量少且OH基浓度均匀的合成石英玻璃。 可以从合成石英玻璃得到光学特性优异的光学部件。

公开(公告)号：US20090232463A1

公开(公告)日：2009-09-17

申请号：US12381302

申请日：2009-03-10

Applicant: Lance Gibson ,  David Peckham ,  Robert Lingle, JR.

Inventor： Lance Gibson ,  David Peckham ,  Robert Lingle, JR.

IPC: G02B6/036

CPC classification number: G02B6/03683 ,  C03B37/01211 ,  C03B37/01228 ,  C03B37/014 ,  C03B37/018 ,  C03B2201/04 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/22

Abstract: The specification describes an improved optical fiber produced by a hybrid VAD/MCVD process. The core of the fiber is produced using VAD and the inner cladding layer has a depressed index and is produced using MCVD. In preferred embodiments, the optical power envelope is essentially entirely contained in VAD produced core material and the MCVD produced depressed index cladding material. Optical loss is minimized by confining most of the optical power to the VAD core where OH presence is low, as well as by maximizing the optical power in the un-doped silica region. The MCVD substrate tube material is essentially devoid of optical power.

Abstract translation: 本说明书描述了通过混合VAD / MCVD工艺生产的改进的光纤。 使用VAD制造纤维的芯，并且内包层具有凹陷指数，并且使用MCVD制造。 在优选实施例中，光功率包层基本上完全包含在VAD生产的芯材料中，并且MCVD产生凹陷的折射率包层材料。 通过将大部分光功率限制在其中OH存在低的VAD核心以及通过使未掺杂二氧化硅区域中的光功率最大化来将光损耗最小化。 MCVD衬底管材料基本上没有光学功率。

公开(公告)号：US07587912B2

公开(公告)日：2009-09-15

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：US20080028799A1

公开(公告)日：2008-02-07

申请号：US11704976

申请日：2007-02-12

Applicant: Young-il Kwon ,  Seok-woo Hwang ,  Lae-hyuk Park ,  Soon-il Shon

Inventor： Young-il Kwon ,  Seok-woo Hwang ,  Lae-hyuk Park ,  Soon-il Shon

IPC: C03B37/018

CPC classification number: C03B37/01807 ,  C03B37/01861 ,  C03B2201/04

Abstract: The present invention relates to an optical fiber preform manufacturing method which can be used for wide band optical fibers by preventing the loss by OH-ions in the 1385 nm wavelength region by depositing a clad layer at a large thickness, so that the ratio of the outer diameter of a core to the outer diameter of a deposited clad is more than 2.5 after a collapse at the deposition of a clad layer and a core, and etching them respectively after the deposition and collapse, in order to prevent OH-ions contained in a tube and OH-ions penetrated into the surface by a hydrogen-oxygen burner from being diffused into the core in the deposition and collapse process in manufacturing an optical fiber preform by the MCVD method.

Abstract translation: 本发明涉及一种光纤预制棒的制造方法，其可以通过以大厚度沉积包覆层来防止1385nm波长区域中的OH-离子的损失，从而可以用于宽带光纤， 在沉积包覆层和芯之后，芯层的外径与沉积的包层的外径之间的外径大于2.5，并在沉积和塌陷之后分别蚀刻它们，以便防止含有的OH-离子 在通过MCVD方法制造光纤预制件时，通过氢 - 氧燃烧器渗入表面的管和OH-离子在沉积和塌陷过程中扩散到芯中。

公开(公告)号：US20080011019A1

公开(公告)日：2008-01-17

申请号：US11691660

申请日：2007-03-27

Applicant: Syuhei Hayami ,  Tadashi Takahashi

Inventor： Syuhei Hayami ,  Tadashi Takahashi

IPC: C03B37/07

CPC classification number: C03B37/01446 ,  C03B2201/04

Abstract: A method of manufacturing an optical fiber preform by passing a porous glass preform through a heating area in an atmosphere of dehydration gas to dehydrate the porous glass preform is provided. Values Pcl and V are set and dehydration is performed to satisfy 0.0773×e7.4873×ρ≦Pcl×T×L/V according to ρ, T, and L, where Pcl is a partial pressure of chlorine gas in the dehydration gas, T is a process temperature, L is a length of an area in the heating area where a temperature is 1150° C. or higher, V is a relative moving speed of the porous glass preform with respect to the heating area, and ρ is an average bulk density of a porous glass layer.

Abstract translation: 提供了一种通过使多孔玻璃预制件通过脱水气体的加热区域使多孔玻璃预制件脱水来制造光纤预制件的方法。 设定值Pcl和V，根据rho，T和L，进行脱水以满足0.0773xe <0.4873×rho <= PclxTxL / V，其中Pcl是脱水气体中氯气的分压 T为加工温度，L为加热区域的温度为1150℃以上的区域的长度，V为多孔质玻璃预制件相对于加热面积的相对移动速度，rho为 多孔玻璃层的平均体积密度。

公开(公告)号：US20060281623A1

公开(公告)日：2006-12-14

申请号：US11266638

申请日：2005-11-03

Applicant: Michael Winnen ,  Todd Springer

Inventor： Michael Winnen ,  Todd Springer

IPC: C03C3/06 ,  C03B11/00 ,  C03B13/00 ,  C03B23/00 ,  C03B18/02

CPC classification number: C03B20/00 ,  C03B19/02 ,  C03B2201/04 ,  C03B2201/075 ,  C03C3/06 ,  C03C10/0009 ,  C03C2201/23 ,  Y02P40/57

Abstract: A method to form quartz glass ingots of ultra low contamination and defect levels by firing a high-purity quartz form as the feedstock, wherein the quartz glass ingot is free-formed on a platen rotating concentrically with the feedstock quartz article.

Abstract translation: 通过烧制高纯度石英形式作为原料来形成超低污染和缺陷水平的石英玻璃锭的方法，其中石英玻璃锭自由形成在与原料石英制品同心旋转的压板上。

公开(公告)号：US07133591B2

公开(公告)日：2006-11-07

申请号：US10517330

申请日：2003-03-27

Applicant: Heinz Fabian

Inventor： Heinz Fabian

IPC: G02B6/02

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B37/01205 ,  C03B2201/04 ,  C03C13/00

Abstract: Jacket tubes of synthetically produced quartz glass as a semi-finished product for producing an outer cladding glass layer of an optical fiber are generally known. The invention relates to an improvement of a jacket tube in terms of inexpensive producibility and of suitability as a semi-finished product for optical fibers having a low optical attenuation. According to the invention this object is achieved by a jacket tube in which the quartz glass has a content of metastable OH groups of less than 0.05 wt ppm and a content of anneal-stable OH groups of less than 0.05 wt ppm.

Abstract translation: 综合生产的石英玻璃作为制造光纤外包层玻璃层的半成品的护套管通常是已知的。 本发明涉及在廉价的可生产性和适用性方面改进套管作为具有低光衰减性的光纤的半成品。 根据本发明，该目的通过夹套管实现，其中石英玻璃具有小于0.05重量ppm的亚稳OH基团的含量和小于0.05重量ppm的退火稳定的OH基团的含量。