Formation of microstructured fiber preforms using porous glass deposition
    2.
    发明申请
    Formation of microstructured fiber preforms using porous glass deposition 审中-公开
    使用多孔玻璃沉积形成微结构纤维预制件

    公开(公告)号:US20110100061A1

    公开(公告)日:2011-05-05

    申请号:US12589951

    申请日:2009-10-30

    IPC分类号: C03B37/018

    摘要: A method of making a microstructured optical fiber preform uses the plasma fusion of a powder layer deposited onto a substrate under conditions that prevent the deposited layer from completely densifying, thereby yielding the formation of bubbles within the layer. By systematic control of powder melt and delivery, while maintaining the process temperature below a temperature associated with densifying the deposited layer, the powder particles densify only partially on the substrate and create bubbles of a fairly narrow (and thus controllable) diameter range within a defined region of the preform. Upon drawing a fiber from the preform, the bubbles will extend into gas lines, forming a desired microstructure arrangement.

    摘要翻译: 在防止沉积层完全致密化的条件下,制造微结构化光纤预制件的方法使用沉积在基板上的粉末层的等离子体熔融,从而在层内形成气泡。 通过系统地控制粉末熔体和输送,同时保持工艺温度低于与沉积层致密化相关的温度,粉末颗粒仅部分地致密化在基底上,并产生在限定的范围内相当窄(且因此可控)的直径范围的气泡 预成型件的区域。 在从预成型件拉制纤维时,气泡将延伸到气体管线中,形成所需的微结构布置。

    Plasma torch for overcladding an optical fiber preform
    3.
    发明授权
    Plasma torch for overcladding an optical fiber preform 有权
    用于包覆光纤预制棒的等离子火炬

    公开(公告)号:US07854145B2

    公开(公告)日:2010-12-21

    申请号:US11769092

    申请日:2007-06-27

    IPC分类号: C03B37/018

    摘要: Disclosed is a plasma torch for overcladding a primary preform of an optical fiber. The plasma torch includes a confinement tube for confining an induced plasma and a torch base. The torch base has a ceramic surface internal to the confinement tube. The plasma torch has extended life even at high input powers.

    摘要翻译: 公开了用于包覆光纤初级预制件的等离子体焰炬。 等离子体焰炬包括用于限制诱导等离子体和焊炬底座的限制管。 割炬底座内部有一个陶瓷表面。 即使在高输入功率下,等离子体焰炬也延长了使用寿命。

    Method and Apparatus for Manufacturing an Optical Fiber Preform
    4.
    发明申请
    Method and Apparatus for Manufacturing an Optical Fiber Preform 审中-公开
    制造光纤预制件的方法和装置

    公开(公告)号:US20080250817A1

    公开(公告)日:2008-10-16

    申请号:US12056988

    申请日:2008-03-27

    IPC分类号: C03B37/00

    CPC分类号: C03B37/01291

    摘要: The invention embraces a method for manufacturing an optical fiber preform. The primary preform is overcladded by projecting silica grain under a plasma torch, wherein, during overcladding, at least one region adjacent to the plasma torch is cooled by gas provided by at least one cooling nozzle. The invention facilitates low-cost preform overcladding in a way that limits the incorporation of impurities into the silica overcladding.

    摘要翻译: 本发明包括一种制造光纤预制棒的方法。 初级预制件通过在等离子体焰炬之下投射二氧化硅颗粒而被包覆,其中,在外包层期间,与等离子体焰炬相邻的至少一个区域由至少一个冷却喷嘴提供的气体冷却。 本发明以限制将杂质掺入二氧化硅外包层的方式促进了低成本预成型体包层。

    Method of producing glass of optical quality
    5.
    发明申请
    Method of producing glass of optical quality 审中-公开
    制造光学品质玻璃的方法

    公开(公告)号:US20080213497A1

    公开(公告)日:2008-09-04

    申请号:US11978715

    申请日:2007-10-30

    IPC分类号: B05D1/08 C03B37/018

    摘要: Glass is produced by depositing presintering composition on a preform set into move in front of a plasma torch which moves back and forth substantially parallel to a longitudinal direction of the preform, a first feed duct feeds the plasma with grains of the presintering composition while optionally a second feed duct feeds the plasma with a fluorine or chlorine compound, preferably a fluorine compound, mixed with a carrier gas.

    摘要翻译: 玻璃是通过将预烧结组合物沉积在等离子体焰炬之前移动的预成型体上制造的,所述等离子体焰炬基本上平行于预成型件的纵向方向前后移动,第一进料管将预烧结组合物的颗粒进料到等离子体, 第二进料管将等离子体与载气混合的氟化合物或氯化合物,优选氟化合物进料。

    Method for Overcladding an Optical Fiber Preform
    6.
    发明申请
    Method for Overcladding an Optical Fiber Preform 有权
    用于包覆光纤预制件的方法

    公开(公告)号:US20070289332A1

    公开(公告)日:2007-12-20

    申请号:US11765083

    申请日:2007-06-19

    CPC分类号: C03B37/01291 Y02P40/57

    摘要: Method for overcladding an optical fiber preform with a given target diameter (D0) of the final preform includes providing a primary preform to be overcladded, and successively depositing first overcladding layers by projecting and vitrifying silica particles on the primary preform moving in relative translation with a plasma torch. Each first overcladding layer has a given uniform thickness (d) and is deposited at a given, constant silica particle flow rate and at a given, constant translation speed. The method also includes the detection of a preform diameter (D1) greater than a given threshold (S) and the deposition of a final overcladding layer having the remaining required thickness (D0−D1) at a constant silica particle flow rate and at a reduced translation speed. The inventive method enables a preform to be overcladded efficiently with improved yield and high quality.

    摘要翻译: 用于将包含最终预制件的给定目标直径(D≤0)的光纤预制件的外包层的方法包括提供要包覆的初级预制件,并且通过在二氧化硅颗粒上投影并玻璃化沉积第一外包层 初级预制件用等离子体焰炬相对平移移动。 每个第一外包层具有给定的均匀厚度(d),并以给定的恒定的二氧化硅颗粒流速和给定的恒定的转换速度沉积。 该方法还包括检测大于给定阈值(S)的预型件直径(D SUB)和沉积具有剩余所需厚度的最终外包层(D <0> 以恒定的二氧化硅颗粒流速和降低的平移速度。 本发明的方法使得预成型件能够以提高的产量和高质量被有效地包覆。

    Plasma torch and preform fabrication system using the method
    7.
    发明申请
    Plasma torch and preform fabrication system using the method 审中-公开
    等离子炬和预制棒制造系统采用该方法

    公开(公告)号:US20060288739A1

    公开(公告)日:2006-12-28

    申请号:US11511286

    申请日:2006-08-29

    IPC分类号: C03B37/018 C03C25/00

    摘要: A system for fabricating an optical fiber preform including glazing the outside surface of the preform using inductive heating, the system including a plasma torch for localized heating of the preform during the glazing, and an injector for injecting into the plasma in the area of the outside face of the preform on which the plasma impinges a gas which is substantially free of silica particles to reduce the power of the plasma during the glazing operation.

    摘要翻译: 一种用于制造光纤预制件的系统,其包括使用感应加热将预成型件的外表面玻璃化,该系统包括用于在玻璃窗期间对预成型件进行局部加热的等离子体焰炬以及用于在外部区域中注入等离子体的注射器 其中等离子体在其上撞击基本上不含二氧化硅颗粒的气体的预型件的表面,以在玻璃操作期间降低等离子体的功率。

    Inductive thermal plasma torch
    8.
    发明授权
    Inductive thermal plasma torch 失效
    感应式热等离子体焰炬

    公开(公告)号:US07132620B2

    公开(公告)日:2006-11-07

    申请号:US10943994

    申请日:2004-09-20

    IPC分类号: B23K10/00

    摘要: The invention relates to an inductive thermal plasma torch comprising a confinement tube that comprises, longitudinally in relation to the tube, metal fingers which are insulated from each other, an ignition device that comprises an igniter (4) and an igniter support (1, 3), the purpose of the igniter (4) being to initiate a discharge in the plasma of the torch, the support having an electrically conductive end (1) which is connected to the electrical earth (2) of the plant and another, electrically insulating, end (3) which carries the igniter, the ignition device also comprising an electrically conductive connection (5) connecting the igniter (4) to the electrically conductive end (1) of the support so that the igniter is able to initiate the discharge in the plasma, the electrically conductive connection (5) having a section that is sufficiently narrow to limit the intensity of the current capable of passing through the igniter (4) in order to avoid electrical arcing by capacitive discharge between the ignition device and another part of the torch.

    摘要翻译: 本发明涉及一种感应热等离子体焰炬,其包括限制管,其包括相对于所述管纵向相互绝缘的金属指,所述点火装置包括点火器(4)和点火器支撑件(1,3) ),所述点火器(4)的目的是在所述手电筒的等离子体中引发放电,所述支撑件具有导电端(1),所述导电端(1)连接到所述设备的电气接地(2),并且另一个电绝缘 ,所述点火装置还包括将所述点火器(4)连接到所述支撑件的导电端(1)的导电连接(5),使得所述点火器能够启动所述点火器 等离子体,导电连接(5)具有足够窄的部分以限制能够通过点火器(4)的电流的强度,以避免电气 在点火装置和手电筒的另一部分之间通过电容放电来电弧。

    Preforms and optical fibers coated in alumina and/or silica
    10.
    发明申请
    Preforms and optical fibers coated in alumina and/or silica 审中-公开
    涂覆在氧化铝和/或二氧化硅中的预制品和光纤

    公开(公告)号:US20020006260A1

    公开(公告)日:2002-01-17

    申请号:US09871812

    申请日:2001-06-04

    申请人: ALCATEL

    IPC分类号: G02B006/22

    摘要: The invention relates to an optical fiber preform comprising an optical core, optical cladding, and an outer sheath, in which the outer sheath includes a peripheral zone containing 20% to 100% by weight alumina and 80% to 0% by weight silica. Such a preform makes it possible to obtain optical fibers having improved mechanical strength and improved impermeability to hydrogen.

    摘要翻译: 本发明涉及一种包括光学芯,光学包层和外护套的光纤预制件,其中外护套包括含有20重量%至100重量%氧化铝和80重量%至0重量%二氧化硅的周边区域。 这样的预成型体使得可以获得具有改善的机械强度和改善对氢的不渗透性的光纤。