GERMANIUM-FREE SILICATE WAVEGUIDE COMPOSITIONS FOR ENHANCED L-BAND AND S-BAND EMISSION AND METHOD FOR ITS MANUFACTURE
    232.
    发明申请
    GERMANIUM-FREE SILICATE WAVEGUIDE COMPOSITIONS FOR ENHANCED L-BAND AND S-BAND EMISSION AND METHOD FOR ITS MANUFACTURE 审中-公开
    用于增强L带和S带排放的无锗硅酸盐波长组合物及其制造方法

    公开(公告)号:WO03057643A2

    公开(公告)日:2003-07-17

    申请号:PCT/US0238303

    申请日:2002-12-03

    Abstract: A method for manufacturing an optical fiber and the resulting article. The method including the steps of: providing a substrate tube; depositing high purity silica-based cladding layers on the inside of the tube; depositing a germanium-free core comprising a glass including silica, and oxides of Al, La, Er, and Tm; collapsing the substrate tube to form a preform; and drawing the preform to yield an optical fiber. A germanium-free co-doped silicate optical waveguide in accordance with the present invention includes a core material comprising silica, aluminum, lanthanum, erbium and thulium, wherein the concentration of Er is from 15 ppm to 3000 ppm; Al is from 0.5 mol% to 15 mol%; La is less than 2 mol%; and Tm is from 150 ppm to 10000 ppm. In an exemplary specific embodiment the concentration of Al is from 4 mol% to 10 mol%; and the concentration of Tm is from 150 ppm to 3000 ppm. The core may further include F. In an exemplary embodiment, the concentration of F is less than or equal to 6 mol%. The waveguide may be an optical fiber, a shaped fiber or other light-guiding waveguides. An amplifier according to the present invention includes the optical fiber described above.

    Abstract translation: 一种制造光纤的方法和所得到的制品。 该方法包括以下步骤:提供衬底管; 在管的内侧沉积高纯度的二氧化硅基包覆层; 沉积包含二氧化硅的玻璃和Al,La,Er和Tm的氧化物的无锗芯; 塌缩基材管以形成预制件; 并拉伸预成型件以产生光纤。 根据本发明的无锗的共掺硅酸盐光波导包括含有二氧化硅,铝,镧,铒和and的核心材料,其中Er的浓度为15ppm至3000ppm; Al为0.5摩尔%〜15摩尔%。 La小于2mol%; Tm为150ppm〜10000ppm。 在一个示例性具体实施方案中,Al的浓度为4mol%至10mol%; Tm的浓度为150ppm〜3000ppm。 芯可以进一步包括F.在一个示例性实施方案中,F的浓度小于或等于6mol%。 波导可以是光纤,成形光纤或其他导光波导。 根据本发明的放大器包括上述光纤。

    METHOD FOR RADIALLY CONSOLIDATING A POROUS OPTICAL FIBER PREFORM
    236.
    发明申请
    METHOD FOR RADIALLY CONSOLIDATING A POROUS OPTICAL FIBER PREFORM 审中-公开
    用于辐射聚合多孔光纤预制的方法

    公开(公告)号:WO01038243A1

    公开(公告)日:2001-05-31

    申请号:PCT/US2000/028222

    申请日:2000-10-12

    CPC classification number: C03B37/01446 C03B37/01413 C03B2201/28 C03B2203/22

    Abstract: A method of manufacturing an optical fiber preform and optical fiber therefrom. The method involves providing a soot clad region of the preform with a dopant, such as P2O5, that causes sintering of the preform to progress from the inside of the soot clad region to its outside, i.e., "inside-out" sequence as opposed to the prior art "outside-in." This beneficially allows outgassing to occur in a radial direction which reduces defects and desirably allows the use of axial bulk sintering. In one embodiment, the dopant varies linearly as a function of radial dimension. Preferable amounts of the viscosity lowering dopant are about 0.1 weight % or greater per centimeter of soot in the soot clad region.

    Abstract translation: 从其制造光纤预制件和光纤的方法。 该方法包括用诸如P 2 O 5的掺杂剂提供预成型体的烟灰包覆区域,其使得预成型体烧结从烟灰包覆区域的内部进入其外部,即“内向外”序列,而不是 现有技术“外在”。 这有利地允许放气沿径向发生,从而减少缺陷,并期望允许使用轴向体积烧结。 在一个实施方案中,掺杂剂作为径向尺寸的函数线性变化。 在烟灰包覆区域中,优选的粘度降低掺杂剂的量为约0.1重量%或更大每厘米的烟灰。

    OPTICAL FIBER FOR OPTICAL AMPLIFYING AND PRODUCTION METHOD THEREFOR
    237.
    发明申请
    OPTICAL FIBER FOR OPTICAL AMPLIFYING AND PRODUCTION METHOD THEREFOR 审中-公开
    用于光学放大的光纤及其制造方法

    公开(公告)号:WO00051213A1

    公开(公告)日:2000-08-31

    申请号:PCT/JP2000/001105

    申请日:2000-02-25

    Abstract: An optical fiber for optical amplifying, provided with a structure for implementing flat gain characteristics or oscillation characteristics in wider wavelength bands, and a production method therefor. The optical fiber for optical amplifying is provided with a second dope region containing an optical axis center-containing first dope region and having an outer diameter larger than that of the first dope region. At least any one of Al2O3, P2O5, Y2O3 and B2O3 are added into the second dope region as oxides of elements having valences different from those of cations constituting the main materials of the above optical fiber. At least any of Er, Nd, Tm, Yb, Pr as rare earth elements, in addition to the above oxides, are added into the first dope region.

    Abstract translation: 一种用于光放大的光纤,其具有用于实现较宽波长带中的平坦增益特性或振荡特性的结构及其制造方法。 用于光放大的光纤设置有包含含光轴中心的第一掺杂区域并具有大于第一掺杂区域的外径的第二掺杂区域。 Al 2 O 3,P 2 O 5,Y 2 O 3和B 2 O 3中的至少任一种作为具有不同于构成上述光纤的主要材料的阳离子的元素的氧化物而添加到第二掺杂区域中。 除了上述氧化物之外,稀土元素中的Er,Nd,Tm,Yb,Pr中的至少任意一种被添加到第一掺杂区域中。

    SUPPRESSION OF STIMULATED BRILLOUIN SCATTERING IN OPTICAL FIBER
    238.
    发明申请
    SUPPRESSION OF STIMULATED BRILLOUIN SCATTERING IN OPTICAL FIBER 审中-公开
    抑制光纤中刺激的白炽灯散射

    公开(公告)号:WO99004298A1

    公开(公告)日:1999-01-28

    申请号:PCT/US1998/014095

    申请日:1998-07-07

    Abstract: Suppression of stimulated Brillouin scattering (SBS) by broadening the energy spectrum of participating SBS photons and/or phonons is achieved in an optical fiber having a core with both radially nonuniform viscosity and CTE profiles provided by alternating layers of glass modifying dopants such as phosphorus and fluorine. The nonuniform thermal expansion and viscosity profiles impart a residual, permanent, nonuniform stress in the fiber. The SBS suppressing effect provided by the nonuniform stress can be controlled and enhanced by applying a uniform or nonuniform tensile force to the fiber as it is being drawn. A preform for the fiber is also disclosed.

    Abstract translation: 通过扩展参与的SBS光子和/或声子的能谱来抑制受激布里渊散射(SBS),在具有由径向不均匀粘度和CTE曲线两者的核心的光纤中实现,该曲线由玻璃修饰掺杂剂如磷和 氟。 不均匀的热膨胀和粘度特性在纤维中赋予残余的,永久的,不均匀的应力。 通过在拉伸时对纤维施加均匀或不均匀的张力,可以控制和增强由不均匀应力提供的SBS抑制效果。 还公开了一种用于纤维的预制件。

    受激布裏元散射抑制光纖
    239.
    发明专利
    受激布裏元散射抑制光纖 审中-公开
    受激布里元散射抑制光纤

    公开(公告)号:TW200630309A

    公开(公告)日:2006-09-01

    申请号:TW094141752

    申请日:2005-11-28

    IPC: C03C H04B

    Abstract: 本發明之解決手段為一種SBS(Stimulated Brillouin Scattering;受激布裏元散射)抑制光纖,係於以石英玻璃所組成之芯線當中,單獨或是組合添加有Ge、P、F等之添加劑,並且使芯線的折射率分布形成為階梯狀,將此階梯狀的折射率分布之鄰接的階梯之添加劑的濃度差,設定為特定的濃度差以上,或是將鄰接的階梯之折射率差,設定為特定的折射率差以上,藉此而提升SBS閾值功率。根據本發明之SBS抑制光纖的構成,由於可提升SBS閾值功率,因此可抑制SBS,並且使零射散波長及模場直徑維持在與一般的SMF(Single Mode Fiber;單模光纖)為同等的參數範圍內,即使在適用於傳輸路之際,亦不會產生連接損失的增大等問題。

    Abstract in simplified Chinese: 本发明之解决手段为一种SBS(Stimulated Brillouin Scattering;受激布里元散射)抑制光纤,系于以石英玻璃所组成之芯线当中,单独或是组合添加有Ge、P、F等之添加剂,并且使芯线的折射率分布形成为阶梯状,将此阶梯状的折射率分布之邻接的阶梯之添加剂的浓度差,设置为特定的浓度差以上,或是将邻接的阶梯之折射率差,设置为特定的折射率差以上,借此而提升SBS阈值功率。根据本发明之SBS抑制光纤的构成,由于可提升SBS阈值功率,因此可抑制SBS,并且使零射散波长及模场直径维持在与一般的SMF(Single Mode Fiber;单模光纤)为同等的参数范围内,即使在适用于传输路之际,亦不会产生连接损失的增大等问题。

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