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    Method for manufacturing a glass doped with a rare earth element and fiber for optical amplification using the same
    85.
    发明申请
    Method for manufacturing a glass doped with a rare earth element and fiber for optical amplification using the same 有权
    制造掺杂有稀土元素的玻璃和使用其的光学放大的光纤的方法

    公开(公告)号：US20040190846A1

    公开(公告)日：2004-09-30

    申请号：US10824429

    申请日：2004-04-15

    Applicant: The Furukawa Electric Co., Ltd.

    Inventor： Toshihiro Nakamura ,  Keiichi Aiso ,  Takeshi Yagi ,  Hisashi Koaizawa ,  Yoko Moriai

    IPC: G02B006/02

    CPC classification number: H01S3/06716 ,  C03B37/01433 ,  C03B37/0148 ,  C03B37/01493 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/36 ,  C03C13/045 ,  Y02P40/57

    Abstract: An optical fiber for optical amplification, characterized in that a full width at half maximum of gain spectrum is 45 nm or more; and a maximum value of power conversion efficiency is 80% or more. A method for producing a rare earth element-doped glass for use in manufacturing the optical fiber, which comprises a deposition step of depositing fine silica glass particles and a co-dopant (a) to prepare an aggregate of fine silica glass particles doped with the co-dopant (a); and a immersion step of immersing the aggregate of fine silica glass particles prepared in the deposition step in a solution containing the rare earth element and the co-dopant (b) to thereby dope the aggregate of fine silica glass particles with the rare earth element component and the co-dopant (b).

    Abstract translation: 一种用于光放大的光纤，其特征在于，增益谱的半值全宽为45nm以上; 功率转换效率的最大值为80％以上。 一种制造用于制造光纤的稀土元素掺杂玻璃的方法，包括沉积步骤，沉积细二氧化硅玻璃颗粒和共掺杂剂（a），以制备掺杂有 共掺杂剂（a）; 以及浸渍步骤，将沉积步骤中制备的细二氧化硅玻璃颗粒的聚集体浸入含有稀土元素和共掺杂物（b）的溶液中，从而将稀土元素组分 和共掺杂剂（b）。

    Systems and methods for fabricating varying waveguide optical fiber device
    86.
    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。

    Multi-layer burner module, adapter, and assembly therefor
    87.
    发明授权
    Multi-layer burner module, adapter, and assembly therefor 有权
    多层燃烧器模块，适配器及其组装

    公开(公告)号：US06743011B2

    公开(公告)日：2004-06-01

    申请号：US10027846

    申请日：2001-12-19

    Applicant: Shivalik Bakshi ,  Daniel W. Hawtof ,  John S. Rosettie ,  Amy L. Rovelstad ,  John Stone, III

    Inventor： Shivalik Bakshi ,  Daniel W. Hawtof ,  John S. Rosettie ,  Amy L. Rovelstad ,  John Stone, III

    IPC: F23D1448

    CPC classification number: F23D23/00 ,  C03B37/0142 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2207/85 ,  F23D91/02 ,  F23D2900/21005

    Abstract: A burner module for delivering a flow of chemical reactants to a combustion site of a chemical vapor deposition process includes a plurality of substantially planar layers. The substantially planar layers are arranged in a generally parallel and fixed relationship and define an inlet, an outlet and a passage fluidly connecting the inlet and outlet. At least one of the layers is a distribution layer having a plurality of apertures therethrough and fluidly communicating with the passage. The plurality of apertures collectively define a non-uniform pattern arranged and configured to improve the uniformity of a flow out through the outlet. Burner adapter and assembly embodiments are also included.

    Abstract translation: 用于将化学反应物流输送到化学气相沉积工艺的燃烧部位的燃烧器模块包括多个基本平坦的层。 基本上平面的层被布置成大致平行和固定的关系，并且限定入口，出口和流体连接入口和出口的通道。 层中的至少一个是具有穿过其并与通道流体连通的多个孔的分布层。 多个孔共同限定了布置和配置为改善通过出口流出的均匀性的不均匀图案。 还包括燃烧器适配器和组装实施例。

    Optical fibre
    89.
    发明申请
    Optical fibre 失效
    光纤

    公开(公告)号：US20040091222A1

    公开(公告)日：2004-05-13

    申请号：US10466442

    申请日：2003-11-04

    Inventor： John Canning ,  Kristy Lee Sommer ,  Shane Huntington

    IPC: G02B006/16

    CPC classification number: G02B6/02052 ,  C03B37/01807 ,  C03B37/01815 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/26 ,  G02B6/02 ,  G02B6/028 ,  G02B6/03611 ,  G02B6/03688 ,  G02B6/262

    Abstract: An optical fibre being optically transmissive at a predetermined wavelength of light null and comprising a plurality of coaxial layers. Each layer having an optical path length that varies radially, the coaxial layers being arranged to give the fibre a refractive index profile which, in use, causes sufficient Fresnel diffraction of the light such that it is guided in the fibre. The refractive index of a cladding region (60) is intermittently suppressed by controlling heating of the preform tube, thus forming a chirped saw-tooth profile (70). The optical fibre may include a lens. In this case, each of the layers has an optical path length that increases gradually outwardly by substantially nnullnull/2 (n: integer).

    Abstract translation: 光纤在光λ的预定波长处是光学透射的并且包括多个同轴层。 每个层具有径向变化的光程长度，同轴层布置成使光纤具有折射率分布，其在使用中引起光的足够的菲涅尔衍射，使得其在光纤中被引导。 通过控制预成型管的加热来间歇地抑制包层区域（60）的折射率，从而形成啁啾的锯齿形轮廓（70）。 光纤可以包括透镜。 在这种情况下，每个层具有通过基本上nxλ/ 2（n：整数）逐渐向外增加的光程长度。

    Double-clad optical fiber for lasers and amplifiers
    90.
    发明申请
    Double-clad optical fiber for lasers and amplifiers 审中-公开
    用于激光和放大器的双包层光纤

    公开(公告)号：US20040069019A1

    公开(公告)日：2004-04-15

    申请号：US10680396

    申请日：2003-10-07

    Inventor： Adrian Carter ,  Kanishka Tankala ,  Martin Seifert

    IPC: C03B037/018 ,  G02B006/18

    CPC classification number: G02B6/03622 ,  C03B37/01294 ,  C03B37/014 ,  C03B2201/28 ,  C03B2201/34 ,  C03B2203/23 ,  C03C25/105 ,  C03C25/47 ,  G02B6/02295 ,  G02B6/02376 ,  G02B6/03694 ,  H01S3/06729 ,  H01S3/094007

    Abstract: A double-clad optical fiber includes a core, a multimode inner cladding disposed about the core, and a second cladding layer disposed about the inner cladding. The core includes an active material for absorbing pump radiation received by the inner cladding. The multimode inner cladding includes truncated regions including a first material, where the first material has an index of refraction that is different than the material of the inner cladding that surrounds said truncated regions, for promoting the scattering of pump radiation propagating in the multimode inner cladding for increasing the absorption of the pump radiation by the active material of the core. The truncated regions can include voids that are empty or that comprise a gas. Particles can be distributed in a soot and/or voids formed in the soot, where the soot can be deposited via Outside Vapor Deposition for forming the truncated regions in an optical fiber drawn from a preform.

    Abstract translation: 双包层光纤包括芯，围绕芯设置的多模内包层和围绕内包层设置的第二包层。 该芯包括用于吸收由内包层接收的泵浦辐射的活性材料。 多模内包层包括包括第一材料的截面区域，其中第一材料的折射率不同于围绕所述截顶区域的内包层的材料，用于促进在多模内包层中传播的泵浦辐射的散射 用于增加核辐射的活性物质对泵辐射的吸收。 截断的区域可以包括空的或包含气体的空隙。 颗粒可以分布在烟灰中形成的烟灰和/或空隙中，其中烟炱可以通过外部气相沉积沉积，以形成从预成型体拉制的光纤中的截面区域。

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