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    Method for plasma overcladding a fluorine-doped optical fiber preform tube
    21.
    发明申请
    Method for plasma overcladding a fluorine-doped optical fiber preform tube 审中-公开
    用于等离子体包覆氟掺杂光纤预制管的方法

    公开(公告)号：US20050262876A1

    公开(公告)日：2005-12-01

    申请号：US11010439

    申请日：2004-12-14

    Applicant: Pierryle Jourdier ,  Claire Wane Nguila ,  Ludovic Fleury

    Inventor： Pierryle Jourdier ,  Claire Wane Nguila ,  Ludovic Fleury

    IPC: C03B37/012 ,  G02B6/02 ,  G02B6/036 ,  C03B37/018

    CPC classification number: G02B6/03683 ,  C03B37/01291 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/23 ,  G02B6/03627

    Abstract: The field is that of methods for providing fiber-optic final preforms obtained by external plasma overcladding build-up around a primary preform. The method involves providing a final preform starting from a primary preform by external plasma deposition of silica grain over a primary preform, the outer peripheral layer of the primary preform consisting of a fluorine-doped silica tube. The build-up process involves forming a first overcladding using fluorine-doped synthetic silica grain followed by a second overcladding step using natural silica grain. The optical fibers obtained and their associated optical fiber preforms are also disclosed.

    Abstract translation: 该领域是提供通过外部等离子体外包层围绕初级预制件堆积获得的光纤最终预成型件的方法。 该方法包括通过在初级预制件上的二氧化硅颗粒的外部等离子体沉积从初级预制件提供最终预制件，初级预制件的外周层由掺氟石英管组成。 堆积工艺包括使用氟掺杂的合成二氧化硅晶粒形成第一外包层，然后使用天然二氧化硅颗粒进行第二次外包层步骤。 还公开了所获得的光纤及其相关联的光纤预制棒。

    Subwavelength-diameter silica wires for low-loss optical waveguiding
    23.
    发明申请
    Subwavelength-diameter silica wires for low-loss optical waveguiding 有权
    用于低损耗光波导的亚波长直径二氧化硅导线

    公开(公告)号：US20050207713A1

    公开(公告)日：2005-09-22

    申请号：US11013198

    申请日：2004-12-15

    Applicant: Eric Mazur ,  Limin Tong ,  Rafael Gattass

    Inventor： Eric Mazur ,  Limin Tong ,  Rafael Gattass

    IPC: C03B37/025 ,  C03B37/027 ,  C03B37/15 ,  G02B6/02 ,  G02B6/08 ,  G02B6/10 ,  G02B6/12 ,  G02B6/255 ,  G02B6/28

    CPC classification number: G02B6/107 ,  B82Y20/00 ,  C03B37/025 ,  C03B37/027 ,  C03B37/15 ,  C03B2201/02 ,  C03B2201/34 ,  G02B6/2552 ,  G02B6/2835

    Abstract: The present invention provides nanometer-sized diameter silica fibers that exhibit high diameter uniformity and surface smoothness. The silica fibers can have diameters in a range of a about 20 nm to about 1000 nm. An exemplary method according to one embodiment of the invention for generating such fibers utilizes a two-step process in which in an initial step a micrometer sized diameter silica preform fiber is generated, and in a second step, the silica preform is drawn while coupled to a support element to form a nanometer sized diameter silica fiber. The portion of the support element to which the preform is coupled is maintained at a temperature suitable for drawing the nansized fiber, and is preferably controlled to exhibit a temporally stable temperature profile.

    Abstract translation: 本发明提供了纳米级直径的二氧化硅纤维，其表现出高直径均匀性和表面光滑度。 二氧化硅纤维的直径可以在约20nm至约1000nm的范围内。 根据用于产生这种纤维的本发明的一个实施方案的示例性方法利用两步法，其中在初始步骤中产生微米尺寸直径的二氧化硅预制纤维，并且在第二步骤中，将二氧化硅预制件拉制，同时连接到 形成纳米尺寸直径的二氧化硅纤维的支撑元件。 将预型件连接到的支撑元件的部分保持在适于拉制纳米纤维的温度，并且优选地被控制以呈现时间上稳定的温度分布。

    Systems and methods for fabricating varying waveguide optical fiber device
    24.
    发明授权
    Systems and methods for fabricating varying waveguide optical fiber device 有权
    制造不同波导光纤器件的系统和方法

    公开(公告)号：US06768849B2

    公开(公告)日：2004-07-27

    申请号：US10190134

    申请日：2002-07-03

    Applicant: David John DiGiovanni ,  Andrew D. Yablon ,  Man Fei Yan

    Inventor： David John DiGiovanni ,  Andrew D. Yablon ,  Man Fei Yan

    IPC: G02B602

    CPC classification number: G02B6/02123 ,  C03B37/027 ,  C03B37/15 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/222 ,  C03B2205/40 ,  G02B6/02 ,  G02B6/02071 ,  G02B6/2551 ,  G02B6/2552

    Abstract: Systems and methods are described for fabricating a varying-waveguide optical fiber. In one described method, a preform is fabricated having a core and at least one cladding region. The cladding region has a higher viscosity and the core region has a lower viscosity. The relative viscosities of the cladding region and core are chosen such that, when tension is applied to an optical fiber drawn from the preform, the applied tension is primarily borne by the cladding region thereby causing a viscoelastic strain to be frozen into the cladding region, while creating a minimal viscoelastic strain in the core. The method further includes drawing the preform into an optical fiber under an applied tension, such that a viscoelastic strain is frozen into the cladding region the frozen-in viscoelastic strain decreasing the cladding region refractive index. The cladding region refractive index is changed in a section of the optical fiber by heating the section so as to relax the viscoelastic strain frozen into the cladding region in the section of fiber, thereby increasing the cladding region refractive index in the section of fiber.

    Abstract translation: 描述了制造变波导光纤的系统和方法。 在一种所描述的方法中，制造具有芯和至少一个包层区的预成型件。 包层区域具有较高的粘度，并且核心区域具有较低的粘度。 选择包层区域和芯体的相对粘度，使得当对从预成型体拉出的光纤施加张力时，施加的张力主要由包层区域承担，从而使粘弹性应变冻结在包层区域中， 同时在核心中产生最小的粘弹性应变。 该方法还包括在施加的张力下将预型件拉伸成光纤，使得粘弹性应变被冻结到包层区域中，使冷冻的粘弹性应变降低包层区折射率。 通过加热该部分使包层区折射率变化，使得在纤维截面中冻结到包层区域的粘弹性应变松弛，从而增加纤维截面中的包层区折射率。

    Method of fabricating optical fiber preforms with high dopant concentration and good geometry
    25.
    发明申请
    Method of fabricating optical fiber preforms with high dopant concentration and good geometry 审中-公开
    制造具有高掺杂浓度和良好几何形状的光纤预制棒的方法

    公开(公告)号：US20030077055A1

    公开(公告)日：2003-04-24

    申请号：US10073697

    申请日：2002-02-11

    Applicant: JDS Uniphase Corporation

    Inventor： Richard P. Tumminelli ,  Ying Hua Zhang ,  Brian M. LaLiberte ,  Alexander Yusim

    IPC: G02B006/44 ,  D02G003/00

    CPC classification number: G02B6/03694 ,  C03B37/01807 ,  C03B2201/02 ,  C03B2201/31 ,  C03B2201/36 ,  C03B2203/22 ,  C03B2203/222 ,  G02B6/03638 ,  Y10T428/2933

    Abstract: An optical fiber preform is made by modifying a conventional preform tube having a cladding zone and a core zone, before its thermal collapse normally followed by fiber drawing. The modification is accomplished by depositing, e.g. by MCVD, a thin protective layer of a light-transmissive material, e.g. silica, on the inner surface of the preform tube, over the core zone, before the collapse step. The material of the protective layer has a higher viscosity than the material of the core zone. The protective layer is deposited over the inner (core) zone of the preform tube and its thickness and composition is selected to prevent excessive viscosity drop of the typically alumina-doped core zone during the collapse step. The provision of the protective, viscosity-controlling protective layer is helpful in maintaining good roundness of the collapsed preform tube.

    Abstract translation: 光纤预制棒通过改变具有包层区和芯区的常规预制管在其热崩溃之前通常进行纤维拉伸而制成。 修饰是通过沉积，例如， 通过MCVD，透光材料的薄保护层，例如。 二氧化硅，在预成型管的内表面上，在芯部区域之前，在崩溃步骤之前。 保护层的材料比核心区域的材料具有更高的粘度。 保护层沉积在预制管的内部（芯部）区域上，并且选择其厚度和组成以防止在崩溃步骤期间典型的氧化铝掺杂的芯区域的过大的粘度下降。 提供保护性，粘度控制保护层有助于保持塌缩的预制管的良好的圆度。

    Process for fabricating optical fiber
    29.
    发明申请
    Process for fabricating optical fiber 失效
    光纤制造工艺

    公开(公告)号：US20020023466A1

    公开(公告)日：2002-02-28

    申请号：US09912129

    申请日：2001-07-24

    Inventor： Mary Louise Mandich ,  William David Reents JR.

    IPC: C03B037/016

    CPC classification number: C03B19/12 ,  C03B19/1453 ,  C03B37/01446 ,  C03B37/016 ,  C03B2201/02 ,  C03B2201/12

    Abstract: Fiber is drawn from a preform comprising a silica body, e.g., a sol-gel derived overcladding or substrate tube. Prior to sintering, the body is treated with a gaseous mixture containing one or more non-oxygenated sulfur halides, to remove and/or reduce the size of refractory oxide particles, and/or dehydroxylate the body. Removal of metal oxide particles or reduction in their size contributes to drawing of optical fiber exhibiting desirable strength, since such particles act as initiation sites for breakage. Advantageously, the halides include sulfur chlorides, which provide desirable improvements compared to treatment by oxygenated sulfur chlorides such as thionyl chloride (SOCl2).

    Abstract translation: 纤维从包含二氧化硅体（例如，溶胶 - 凝胶衍生的外包层或底物管）的预制件中抽出。 在烧结之前，用含有一种或多种非氧化硫化氢的气体混合物处理体，以除去和/或减少难熔氧化物颗粒的尺寸和/或使体内脱氢化。 去除金属氧化物颗粒或其尺寸减小有助于拉伸具有所需强度的光纤，因为这些颗粒作为断裂的起始位置。 有利地，卤化物包括与由氧化硫化物如亚硫酰氯（SOCl 2）处理相比提供期望的改进的硫化氯。

    Sol gel process of making a fiber preform with removal of oxide particles
    30.
    发明授权
    Sol gel process of making a fiber preform with removal of oxide particles 失效
    制造纤维预成型件去除氧化物颗粒的溶胶凝胶法

    公开(公告)号：US06334338B1

    公开(公告)日：2002-01-01

    申请号：US09109827

    申请日：1998-07-02

    Applicant: Mary Louise Mandich ,  William David Reents, Jr.

    Inventor： Mary Louise Mandich ,  William David Reents, Jr.

    IPC: C03B37016

    CPC classification number: C03B19/12 ,  C03B19/1453 ,  C03B37/01446 ,  C03B37/016 ,  C03B2201/02 ,  C03B2201/12

    Abstract: Fiber is drawn from a preform comprising a silica body, e.g., a sol-gel derived overcladding or substrate tube. Prior to sintering, the body is treated with a gaseous mixture containing one or more non-oxygenated sulfur halides, to remove and/or reduce the size of refractory oxide particles, and/or dehydroxylate the body. Removal of metal oxide particles or reduction in their size contributes to drawing of optical fiber exhibiting desirable strength, since such particles act as initiation sites for breakage. Advantageously, the halides include sulfur chlorides, which provide desirable improvements compared to treatment by oxygenated sulfur chlorides such as thionyl chloride (SOCl2).

    Abstract translation: 纤维从包含二氧化硅体（例如，溶胶 - 凝胶衍生的外包层或底物管）的预制件中抽出。 在烧结之前，用含有一种或多种非氧化硫化氢的气体混合物处理体，以除去和/或减少难熔氧化物颗粒的尺寸和/或使体内脱氢化。 去除金属氧化物颗粒或其尺寸减小有助于拉伸具有所需强度的光纤，因为这些颗粒作为断裂的起始位置。 有利地，卤化物包括与由氧化硫化物如亚硫酰氯（SOCl 2）处理相比提供期望的改进的硫化氯。

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