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    Low loss optical fiber designs for confining optical power to low-doped regions
    63.
    发明授权
    Low loss optical fiber designs for confining optical power to low-doped regions 有权
    低损耗光纤设计用于将光功率限制在低掺杂区域

    公开(公告)号：US08073301B2

    公开(公告)日：2011-12-06

    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。

    MCVD optical fiber method with partial removal of substrate tube
    64.
    发明授权
    MCVD optical fiber method with partial removal of substrate tube 有权
    MCVD光纤法部分去除衬底管

    公开(公告)号：US07946134B2

    公开(公告)日：2011-05-24

    申请号：US12799561

    申请日：2010-04-27

    Applicant: Robert M. Atkins ,  James W. Fleming ,  Paul F Glodis ,  Man F. Yan

    Inventor： Robert M. Atkins ,  James W. Fleming ,  Paul F Glodis ,  Man F. Yan

    IPC: C03B37/018

    CPC classification number: C03B37/01869 ,  C03B37/01211 ,  C03B37/01248 ,  C03B37/01861 ,  C03B2201/04 ,  C03B2203/22

    Abstract: The specification describes methods for the manufacture of very large optical fiber preforms wherein the core material is produced by MCVD. Previous limitations on preform size inherent in having the MCVD starting tube as part of the preform process are eliminated by removing the MCVD starting tube material from the collapsed MCVD rod by etching or mechanical grinding. Doped overcladding tubes are used to provide the outer segments of the refractive index profile thus making most effective use of the MCVD produced glass and allowing the production of significantly larger MCVD preforms than previously possible.

    Abstract translation: 该说明书描述了用于制造非常大的光纤预制件的方法，其中芯材料通过MCVD制造。 通过蚀刻或机械研磨，通过从收缩的MCVD棒中除去MCVD起始管材料，从而消除了将MCVD起始管作为预制件工艺的一部分而固有的预制件尺寸的限制。 掺杂的外包管用于提供折射率分布的外部部分，从而最有效地利用MCVD生产的玻璃，并允许生产比之前可能的显着更大的MCVD预成型件。

    SYNTHETIC SILICA GLASS TUBE FOR THE PRODUCTION OF A PREFORM
    65.
    发明申请
    SYNTHETIC SILICA GLASS TUBE FOR THE PRODUCTION OF A PREFORM 审中-公开
    合成二氧化硅玻璃管用于生产预制物

    公开(公告)号：US20100260949A1

    公开(公告)日：2010-10-14

    申请号：US12820001

    申请日：2010-06-21

    Applicant: Oliver Ganz ,  Ralph Sattmann ,  Jan Vydra

    Inventor： Oliver Ganz ,  Ralph Sattmann ,  Jan Vydra

    IPC: B32B1/08 ,  C03C15/00

    CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B19/1469 ,  C03B37/0124 ,  C03B37/01892 ,  C03B2201/04 ,  C03B2201/075 ,  Y10T428/13

    Abstract: Known synthetic quartz glass tubes for the production of a preform have an inner bore with a surface layer produced without using tools in the molten state and an inner zone. The aim of the invention is to provide a tube which does not release any OH groups to the surroundings. For this purpose, the surface layer (30) has a thickness of 10 μm and an average OH content of not more than 5 ppm by weight and an average surface roughness Ra of not more than 0.1 μm. The inner zone (34) that starts on the surface layer (30) and terminates 10 μm before the outer wall has an average OH content of not more than 0.2 ppm by weight. A simple and inexpensive method for producing a quartz tube of the above type is to continuously draw a tube strand from a softened quartz glass mass in a vertical drawing process. A scavenging gas is circulated through the inner bore of the tube, said gas having a water content of less than 100 ppb per weight. The front end of the tube strand (19) is closed by a flow obstacle (26) that is permeable the scavenging gas and that reduces the amount of scavenging gas (23) flowing through.

    Abstract translation: 用于生产预成型件的已知的合成石英玻璃管具有内孔，其具有在不使用处于熔融状态的工具和内部区域的情况下制备的表面层。 本发明的目的是提供一种不会向周围释放任何OH基团的管。 为此，表面层（30）的厚度为10μm，平均OH含量为5重量ppm以下，平均表面粗糙度Ra为0.1μm以下。 在表层（30）上开始并在外壁之前终止10μm的内部区域（34）具有不大于0.2重量ppm的平均OH含量。 用于生产上述类型的石英管的简单和便宜的方法是在垂直拉伸过程中连续地从软化的石英玻璃块抽取管束。 清除气体通过管的内孔循环，所述气体的含水量小于100ppb /重量。 管股（19）的前端由能够吸收清除气体的流动障碍物（26）封闭，并减少流过的清除气体（23）的量。

    FUSED SILICA BLANK AND METHOD OF FORMING A FUSED SILICA PLATE FROM THE SAME
    68.
    发明申请
    FUSED SILICA BLANK AND METHOD OF FORMING A FUSED SILICA PLATE FROM THE SAME 有权
    熔融二氧化硅和其形成二氧化硅板的方法

    公开(公告)号：US20090142547A1

    公开(公告)日：2009-06-04

    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: B32B17/00 ,  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。

    PROCESS FOR PRODUCING SYNTHETIC QUARTZ GLASS AND SYNTHETIC QUARTZ GLASS FOR OPTICAL MEMBER
    70.
    发明申请
    PROCESS FOR PRODUCING SYNTHETIC QUARTZ GLASS AND SYNTHETIC QUARTZ GLASS FOR OPTICAL MEMBER 失效
    用于生产合成石英玻璃和合成石英玻璃的光学成员工艺

    公开(公告)号：US20070277555A1

    公开(公告)日：2007-12-06

    申请号：US11833397

    申请日：2007-08-03

    Applicant: Keigo HINO

    Inventor： Keigo HINO

    IPC: C03B19/06 ,  C03B19/00 ,  C03C3/06

    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。

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