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    Internal vapour deposition process
    31.
    发明授权
    Internal vapour deposition process 有权
    内部气相沉积工艺

    公开(公告)号：US08402792B2

    公开(公告)日：2013-03-26

    申请号：US13082076

    申请日：2011-04-07

    Applicant: Igor Milicevic ,  Mattheus Jacobus Nicolaas Van Stralen ,  Johannes Antoon Hartsuiker ,  Eugen Aldea

    Inventor： Igor Milicevic ,  Mattheus Jacobus Nicolaas Van Stralen ,  Johannes Antoon Hartsuiker ,  Eugen Aldea

    IPC: C03B37/018

    CPC classification number: C03B37/0183 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2201/24 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/42

    Abstract: A method for manufacturing a primary preform for optical fibers using an internal vapor deposition process, including the steps of: i) providing a hollow glass substrate tube having a supply side and a discharge side, ii) surrounding at least part of the hollow glass substrate tube by a furnace, iii) supplying doped or undoped glass-forming gases to the interior of the hollow glass substrate tube via the supply side thereof, iv) creating a reaction zone in which conditions such that deposition of glass will take place on the interior of the hollow glass tube are created, and v) moving the reaction zone back and forth along the length of the hollow glass substrate tube between a reversal point located near the supply side and a reversal point located near the discharge side of the hollow glass substrate tube, wherein, during at least part of step v), the gas flow comprises a first concentration of fluorine-containing compound when the reaction zone is moving in the direction of the discharge side.

    Abstract translation: 一种使用内部气相沉积工艺制造用于光纤的初级预制棒的方法，包括以下步骤：i）提供具有供给侧和排出侧的中空玻璃基板管，ii）至少部分中空玻璃基板 通过炉子管，iii）通过其供应侧将掺杂或未掺杂的玻璃形成气体供应到中空玻璃基底管的内部，iv）产生反应区，其中在内部发生玻璃沉积的条件 并且v）沿着中空玻璃基板管的长度在位于供给侧附近的反转点与位于中空玻璃基板的排出侧附近的反转点之间前后移动反应区域 管，其中在步骤v）的至少一部分期间，当反应区沿盘的方向移动时，气流包括第一浓度的含氟化合物 大一边

    METHOD AND TUBULAR SEMIFINISHED PRODUCT FOR PRODUCING AN OPTICAL FIBER
    32.
    发明申请
    METHOD AND TUBULAR SEMIFINISHED PRODUCT FOR PRODUCING AN OPTICAL FIBER 有权
    用于生产光纤的方法和管状半纤维产品

    公开(公告)号：US20120324960A1

    公开(公告)日：2012-12-27

    申请号：US13583605

    申请日：2011-03-10

    Applicant: Ralph Sattmann ,  Jan Vydra ,  Michael Huenermann

    Inventor： Ralph Sattmann ,  Jan Vydra ,  Michael Huenermann

    IPC: C03B37/027 ,  G02B6/036

    CPC classification number: C03B37/02754 ,  C03B37/01211 ,  C03B37/01228 ,  C03B37/01242 ,  C03B37/018 ,  C03B37/027 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2205/30 ,  C03C13/045 ,  C03C2201/12 ,  G02B6/03633 ,  G02B6/0365 ,  Y10T428/2935

    Abstract: Methods for producing an optical fiber by elongating a silica glass blank or a coaxial group of silica glass components, on the basis of which a fiber is obtained that comprises a core zone, an inner jacket zone enclosing the core zone and a ring zone surrounding the inner jacket zone, are known. In order to provide, proceeding from this, a method, a tubular semi-finished product and a group of coaxial components for the cost-effective production of an optical fiber, which is characterized by a high quality of the boundary between the core and jacket and by low bending sensitivity, according to the invention, the silica glass of the ring zone is provided in the form of a ring zone tube made of silica glass having a mean fluorine content of at least 6000 weight ppm and the tube has an inner tube surface and an outer tube surface, wherein via the wall of the ring zone tube, a radial fluorine concentration profile is adjusted which has an inner fluorine depletion layer with a layer thickness of at least 1 μm and no more than 10 μm, in which the fluorine content decreases toward the inner tube surface and is no more than 3000 weight ppm in a region close to the surface which has a thickness of 1 μm.

    Abstract translation: 通过使二氧化硅玻璃坯料或同轴的二氧化硅玻璃成分组延长来制造光纤的方法，在此基础上获得包含芯区的纤维，包围芯区的内护套区和围绕该芯区的环带 内护套区域，已知。 为了提供一种用于成本有效地生产光纤的方法，管状半成品和一组同轴部件，其特征在于芯和夹套之间的边界质量高 并且通过低弯曲灵敏度，根据本发明，环区的石英玻璃以平均氟含量为至少6000重量ppm的石英玻璃制成的环形管的形式提供，并且管具有内管 表面和外管表面，其中通过环带管的壁，调节径向氟浓度分布，其具有层厚度为至少1μm且不大于10μm的内氟耗尽层，其中 氟含量向内管表面减少，并且在接近表面厚度为1μm的区域中不超过3000重量ppm。

    MANUFACTURING METHOD OF POROUS SILICA BODY, MANUFACTURING METHOD OF OPTICAL FIBER PREFORM, POROUS SILICA BODY, AND OPTICAL FIBER PREFORM
    33.
    发明申请
    MANUFACTURING METHOD OF POROUS SILICA BODY, MANUFACTURING METHOD OF OPTICAL FIBER PREFORM, POROUS SILICA BODY, AND OPTICAL FIBER PREFORM 审中-公开
    多孔二氧化硅体的制造方法，光纤预制件的制造方法，多孔二氧化硅体和光纤预选

    公开(公告)号：US20120321891A1

    公开(公告)日：2012-12-20

    申请号：US13596816

    申请日：2012-08-28

    Applicant: Tomohiro NUNOME

    Inventor： Tomohiro NUNOME

    IPC: C03B37/018 ,  B32B17/02

    CPC classification number: C03B37/0142 ,  C03B37/01453 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2207/20 ,  C03B2207/52 ,  C03B2207/66 ,  C03B2207/70 ,  Y02P40/57 ,  Y10T428/2964

    Abstract: A manufacturing method for a porous silica body including: a step of arranging a plurality of burners around an optical fiber core rod; and a deposition step of depositing a plurality of soot layers on an outer peripheral surface of the optical fiber core rod by the burners, wherein the deposition step comprises forming each of the plurality of soot layers by one of the burners, and depositing each soot layer to satisfy 0.2≦x≦0.5 and 0.1≦y≦4.0x2−3.8x+1.3 where x (g/cm3) is the average bulk density and y (mm) is the deposition thickness, and so that the maximum value of the bulk density of the soot layers becomes 0.6 g/cm3 or less.

    Abstract translation: 一种多孔二氧化硅体的制造方法，包括：在光纤芯棒的周围配置多个燃烧器的工序; 以及沉积步骤，其通过燃烧器在所述光纤芯棒的外周表面上沉积多个烟灰层，其中所述沉积步骤包括通过所述燃烧器之一形成所述多个烟灰层中的每一个，并且沉积每个烟灰层 满足0.2＆nlE; x＆nlE; 0.5和0.1＆nlE; y＆nlE; 4.0x2-3.8x + 1.3其中x（g / cm3）是平均堆积密度，y（mm）是沉积厚度， 烟灰层的体积密度为0.6g / cm 3以下。

    Method of manufacturing optical fiber with selected draw tension
    34.
    发明授权
    Method of manufacturing optical fiber with selected draw tension 有权
    具有选择拉伸张力的光纤制造方法

    公开(公告)号：US08322166B2

    公开(公告)日：2012-12-04

    申请号：US12951175

    申请日：2010-11-22

    Applicant: Dana Craig Bookbinder ,  Ming-Jun Li ,  Peter Joseph Ronco ,  Pushkar Tandon

    Inventor： Dana Craig Bookbinder ,  Ming-Jun Li ,  Peter Joseph Ronco ,  Pushkar Tandon

    IPC: C03B37/025

    CPC classification number: C03B37/0253 ,  C03B37/027 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/26

    Abstract: A method of manufacturing an optical fiber includes providing a preform in a furnace, and drawing a plurality of optical fibers from the preform at a plurality of different draw tensions. A bandwidth characteristic of each of the optical fiber is drawn at the different draw tensions is measured. A draw tension setpoint is selected based on the measured bandwidth characteristic of each optical fiber and the draw tension is adjusted to the selected draw tension setpoint. The method further includes drawing from the preform a tuned optical fiber at the selected draw tension setpoint which provides peak bandwidth.

    Abstract translation: 制造光纤的方法包括在炉中提供预制件，并且以多种不同的拉伸张力从预成型件拉制多根光纤。 每个光纤的带宽特性被绘制在不同的拉伸张力下。 基于每个光纤的测量带宽特性选择拉伸张力设定点，并将拉伸张力调整到所选拉伸张力设定点。 该方法还包括从所述预成型件中抽出所选择的拉伸张力设定点的调谐光纤，其提供峰值带宽。

    Low loss optical fiber designs and methods for their manufacture
    35.
    发明授权
    Low loss optical fiber designs and methods for their manufacture 有权
    低损耗光纤设计及其制造方法

    公开(公告)号：US08295668B2

    公开(公告)日：2012-10-23

    申请号：US13317073

    申请日：2011-10-07

    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。

    METHOD FOR FABRICATING RARE EARTH (RE) DOPED OPTICAL FIBER USING A NEW CODOPANT
    37.
    发明申请
    METHOD FOR FABRICATING RARE EARTH (RE) DOPED OPTICAL FIBER USING A NEW CODOPANT 有权
    使用新的CODOPANT制造稀土（RE）掺杂光纤的方法

    公开(公告)号：US20120201504A1

    公开(公告)日：2012-08-09

    申请号：US13260415

    申请日：2010-03-29

    Applicant: Ranjan Sen ,  Anirban Dhar ,  Mukul Chandra Paul ,  Himadri Sekhar Maiti

    Inventor： Ranjan Sen ,  Anirban Dhar ,  Mukul Chandra Paul ,  Himadri Sekhar Maiti

    IPC: G02B6/00 ,  C03B37/018

    CPC classification number: C03B37/01838 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/54 ,  C03C3/095 ,  C03C4/0071 ,  C03C13/046 ,  Y02P40/57

    Abstract: The present invention provides a method of making rare earth (RE) doped optical fiber using BaO as co-dopant instead of Al or P commonly used for incorporation of the RE in silica glass by MCVD and solution doping technique. The method comprises deposition of particulate layer of GeO2 doped SiO2 with or without small P2O5 for formation of the core and solution doping by soaking the porous soot layer into an aqueous solution of RE and Ba containing salt. This is followed by dehydration and sintering of the soaked deposit, collapsing at a high temperature to produce the preform and drawing of fibers of appropriate dimension. The use of Ba-oxide enables to eliminate unwanted core-clad interface defect which is common in case of Al doped fibers. The fibers also show good RE uniformity, relatively low optical loss in the 0.6-1.6 μm wavelength region and good optical properties suitable for their application in amplifiers, fiber lasers and sensor devices.

    Abstract translation: 本发明提供一种使用BaO作为共掺杂剂代替通常用于通过MCVD和溶液掺杂技术将石英玻璃中的RE掺入的Al或P的掺杂稀土（RE）掺杂光纤的方法。 该方法包括沉积具有或不具有小的P 2 O 5的GeO 2掺杂的SiO 2的颗粒层以形成芯并通过将多孔烟灰层浸入含RE和Ba的盐的水溶液中来进行溶液掺杂。 随后将浸渍的沉积物脱水和烧结，在高温下塌陷以制备预制件并拉出适当尺寸的纤维。 使用Ba氧化物能够消除在Al掺杂光纤的情况下常见的不需要的芯包层界面缺陷。 纤维也表现出良好的均匀性，0.6-1.6μm波长区域的光损耗相对较低，适用于放大器，光纤激光器和传感器装置的光学性能良好。

    Aerosol generator
    40.
    发明申请
    Aerosol generator 有权
    气溶胶发生器

    公开(公告)号：US20120049393A1

    公开(公告)日：2012-03-01

    申请号：US13373066

    申请日：2011-11-03

    Applicant: Anthony Michael DeSantolo ,  Robert Scott Windeler

    Inventor： Anthony Michael DeSantolo ,  Robert Scott Windeler

    IPC: B01F3/04

    CPC classification number: C03B19/1438 ,  B01D1/0005 ,  C03B37/01433 ,  C03B37/01838 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2207/81 ,  C03B2207/87

    Abstract: A method of fabricating a glass body that includes a multiplicity of constituents, at least one of which is a dopant (e.g., a rare-earth element) having a low vapor pressure (LVP) precursor comprises the steps of: (a) generating an aerosol from the LVP precursor; (b) separately generating vapors of the other constituents; (c) convecting the aerosol and vapors to deposition system including a substrate; and (d) forming at least one doped layer on a surface of the substrate. In one embodiment, the method also includes filtering the aerosol so as to remove aerosol particles outside of a particular range of sizes. Also described is a unique aerosol generator that is particularly useful in generating aerosols of rare-earth dopants. Particular embodiments directed to the fabrication of Yb-doped optical fibers are described.

    Abstract translation: 一种制造玻璃体的方法，其包括多个组分，其中至少一种是具有低蒸气压（LVP）前体的掺杂剂（例如，稀土元素），其包括以下步骤：（a）产生 来自LVP前体的气溶胶; （b）分别生成其他成分的蒸气; （c）将气溶胶和蒸气对流到包括基底的沉积系统; 和（d）在所述衬底的表面上形成至少一个掺杂层。 在一个实施方案中，该方法还包括过滤气溶胶以除去特定范围的气溶胶颗粒。 还描述了一种独特的气溶胶发生器，其特别用于产生稀土掺杂剂的气溶胶。 描述了涉及制造掺杂Yb的光纤的特定实施例。

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