Glass preform manufacturing method
    133.
    发明授权
    Glass preform manufacturing method 有权
    玻璃预制件制造方法

    公开(公告)号:US08141391B2

    公开(公告)日:2012-03-27

    申请号:US12856261

    申请日:2010-08-13

    Abstract: A glass preform manufacturing method includes: generating glass fine particles by hydrolyzing a source gas in an oxyhydrogen flame; depositing the generated glass fine particles to form a torous glass preform; immersing the porous glass preform in an additive solution including an additive solvent in which a compound containing a desired additive is dissolved to impregnate the additive solution into the porous glass preform; first replacing of replacing the additive solvent remaining in the porous glass preform with the replacement solvent by immersing the porous glass preform in which the additive solution remains in a replacement solvent in which a solubility of the additive is lower than that in the additive solvent and having miscibility with the additive solvent; drying the porous glass preform after the first replacing; and sintering the dried porous glass preform to transparently vitrify the dried porous glass preform.

    Abstract translation: 玻璃预制件的制造方法包括:通过在氢氧焰中水解源气体来产生玻璃微粒; 沉积生成的玻璃细颗粒以形成托盘玻璃预制件; 将多孔玻璃预成型体浸渍在包含其中溶解含有所需添加剂的化合物的添加剂溶剂的添加剂溶液中以将添加剂溶液浸渍到多孔玻璃预制件中; 首先用置换溶剂代替残留在多孔玻璃预制品中的添加剂溶剂,通过浸渍多孔玻璃预制件,其中添加剂溶液保留在添加剂溶解度低于添加剂溶剂中的溶剂中并具有 与添加剂溶剂的混溶性; 第一次更换之后干燥多孔玻璃预制件; 并且将干燥的多孔玻璃预制件烧结以使干燥的多孔玻璃预制件透明地玻璃化。

    Method for the preparation of doped oxide material
    134.
    发明授权
    Method for the preparation of doped oxide material 有权
    掺杂氧化物材料的制备方法

    公开(公告)号:US07624596B2

    公开(公告)日:2009-12-01

    申请号:US10518006

    申请日:2003-06-27

    Abstract: A method for preparing doped oxide material, in which method substantially all the reactants forming the oxide material are brought to a vaporous reduced form in the gas phase and after this to react with each other in order to form oxide particles. The reactants in vaporous and reduced form are mixed together to a gas flow of reactants, which gas flow is further condensated fast in such a manner that substantially all the component parts of the reactants reach a supersaturated state substantially simultaneously by forming oxide particles in such a manner that there is no time to reach chemical phase balances.

    Abstract translation: 一种制备掺杂氧化物材料的方法,其中基本上所有形成氧化物材料的反应物在气相中形成蒸气还原形式,然后彼此反应以形成氧化物颗粒。 气态和还原形式的反应物一起混合到反应物的气流中,气流进一步冷凝,使得基本上所有的反应物的所有组分部分基本上同时通过在其中形成氧化物颗粒而达到过饱和状态 没有时间达到化学相平衡的方式。

    Optical fiber with fresnel diffraction
    136.
    发明授权
    Optical fiber with fresnel diffraction 失效
    具有菲涅耳衍射的光纤

    公开(公告)号:US07379645B2

    公开(公告)日:2008-05-27

    申请号:US10466442

    申请日:2002-01-18

    Abstract: An optical fiber being optically transmissive at a predetermined wavelength of light λ 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 fiber a refractive index profile which, in use, causes sufficient Fresnel diffraction of the light such that it is guided in the fiber. 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 fiber may include a lens. In this case, each of the layers has an optical path length that increases gradually outwardly by substantially n×λ/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。

    Manufacturing method of optical fiber preform, manufacturing method of optical fiber, and optical fiber
    137.
    发明授权
    Manufacturing method of optical fiber preform, manufacturing method of optical fiber, and optical fiber 有权
    光纤预制棒的制造方法,光纤的制造方法以及光纤

    公开(公告)号:US07376316B2

    公开(公告)日:2008-05-20

    申请号:US10567912

    申请日:2004-08-03

    Abstract: Methods of manufacturing an optical fiber preform and an optical fiber, and an optical fiber formed by this method of manufacturing an optical fiber are provided, the optical fiber preform having a desired refractive index profile and being capable of suppressing an increase in loss due to the absorption by OH groups. A pipe is formed by an inside vapor phase deposition method such that glass layer to be formed into a core and a glass layer to be formed into a part of a cladding pipe are deposited in a starting pipe, the glass layers each containing at least one of fluorine, germanium, phosphorous, and chlorine, the starting pipe being made of a silica glass having an outside diameter in the range of 20 to 150 mm and a wall thickness in the range of 2 to 8 mm. The pipe thus formed is collapsed to form a glass rod in which the concentration of hydroxyl groups is 10 weight ppm or less in a region from the surface of the glass rod to a depth of 1 mm therefrom.

    Abstract translation: 提供了制造光纤预制棒和光纤的方法以及通过该光纤制造方法形成的光纤,所述光纤预制棒具有所需的折射率分布并且能够抑制由于 OH基吸收。 通过内部气相沉积方法形成管,使得要形成芯的玻璃层和待形成为包层管的一部分的玻璃层沉积在起始管中,每个玻璃层包含至少一个 的氟,锗,磷和氯,起始管由外径在20〜150mm,壁厚在2〜8mm的范围内的石英玻璃制成。 由此形成的管道在从玻璃棒的表面到其深度为1mm的区域中折叠形成玻璃棒,其中羟基的浓度为10重量ppm以下。

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