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    Systems and methods for reducing splice loss in optical fibers
    163.
    发明申请
    Systems and methods for reducing splice loss in optical fibers 有权
    降低光纤接头损耗的系统和方法

    公开(公告)号：US20040086243A1

    公开(公告)日：2004-05-06

    申请号：US10287307

    申请日：2002-11-04

    Applicant: Fitel USA Corp.

    Inventor： David John DiGiovanni ,  Peter Mikal Holmblad ,  Torben E. Veng ,  Andrew D. Yablon

    IPC: G02B006/02 ,  G02B006/16

    CPC classification number: G02B6/03644 ,  C03B37/01413 ,  C03B37/01807 ,  C03B37/027 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2203/22 ,  C03B2203/222 ,  C03B2203/36 ,  C03B2205/40 ,  G02B6/03666 ,  G02B6/03694 ,  G02B6/2551

    Abstract: Optical fibers are described that exhibit reduced splice loss. Further described are techniques for fabricating optical fibers exhibiting reduced splice loss. One described fiber includes a plurality of regions, one region having a higher viscosity and the other region having a lower viscosity, such that when the fiber is drawn under tension, a strain is frozen into the higher viscosity region. A lower viscosity buffer layer is sandwiched between the higher viscosity region and the lower viscosity region. The buffer layer isolates the lower viscosity region from changes in refractive index in the higher viscosity region arising from a change in the strain frozen into the higher viscosity region.

    Abstract translation: 描述了表现出减少的接合损耗的光纤。 进一步描述的是制造具有减小的接合损耗的光纤的技术。 一种所述的纤维包括多个区域，一个区域具有较高的粘度，另一个区域具有较低的粘度，使得当纤维在张力下拉伸时，应变被冻结到较高粘度的区域中。 较低粘度的缓冲层夹在较高粘度区域和较低粘度区域之间。 缓冲层将较低粘度区域与由较冷粘度变为较高粘度区域的应变的变化引起的较高粘度区域的折射率变化相分离。

    Method of making extreme ultraviolet lithography glass substrates
    164.
    发明申请
    Method of making extreme ultraviolet lithography glass substrates 审中-公开
    制造极紫外光刻玻璃基板的方法

    公开(公告)号：US20040025542A1

    公开(公告)日：2004-02-12

    申请号：US10456318

    申请日：2003-06-05

    Inventor： Laura J. Ball ,  Sylvain Rakotoarison

    IPC: C03B019/06 ,  C03B037/018

    CPC classification number: C03B19/143 ,  C03B19/01 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/42

    Abstract: A method for making extreme ultraviolet lithography tool glass substrates includes generating a plasma, delivering reactants comprising a silica precursor and a titania precursor into the plasma to produce titania and silica particles, and depositing the titania and silica particles on a deposition surface to form a homogeneous titania-doped silica. The invention provides for homogeneous glass substrates that are free of striae variations and provides for beneficial extreme ultraviolet lithography reflective optics.

    Abstract translation: 用于制造极紫外光刻工具玻璃基板的方法包括产生等离子体，将包含二氧化硅前体和二氧化钛前体的反应物输送到等离子体中以产生二氧化钛和二氧化硅颗粒，并将二氧化钛和二氧化硅颗粒沉积在沉积表面上以形成均匀的 二氧化钛掺杂二氧化硅。 本发明提供了不含条纹变化的均匀玻璃基底，并提供有益的极紫外光刻反射光学器件。

    Suppression of stimulated Brillouin scattering in optical fiber
    165.
    发明授权
    Suppression of stimulated Brillouin scattering in optical fiber 失效
    光纤中受激布里渊散射的抑制

    公开(公告)号：US06542683B1

    公开(公告)日：2003-04-01

    申请号：US09462739

    申请日：2000-01-13

    Applicant: Alan Frank Evans ,  Carlton Maurice Truesdale

    Inventor： Alan Frank Evans ,  Carlton Maurice Truesdale

    IPC: G02B622

    CPC classification number: G02B6/03694 ,  C03B37/027 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/36 ,  C03B2205/40 ,  C03C13/046 ,  G02B6/03661 ,  G02B6/03688

    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 phosphorous 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），在具有径向不均匀粘度和CTE曲线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拉伸力，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。

    Optical fiber and optical fiber transmission line, and manufacturing method therefor
    168.
    发明申请
    Optical fiber and optical fiber transmission line, and manufacturing method therefor 审中-公开
    光纤和光纤传输线及其制造方法

    公开(公告)号：US20020118938A1

    公开(公告)日：2002-08-29

    申请号：US10076603

    申请日：2002-02-19

    Inventor： Takemi Hasegawa ,  Masashi Onishi

    IPC: G02B006/20 ,  G02B006/16 ,  C03B037/027

    CPC classification number: G02B6/02328 ,  C03B37/01208 ,  C03B37/0122 ,  C03B37/01231 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/42 ,  C03B2203/14 ,  C03B2203/42 ,  G02B6/02333 ,  G02B6/02347 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/29376 ,  Y02P40/57

    Abstract: Provided is an optical fiber having holes extending along the axis whose transmission loss is substantially reduced and the manufacturing method thereof. First, a plurality of through-holes 9 are formed in a preform 5 extending along the preform axis. Subsequently, the preform 5 is heated by heating means 24 in the furnace preferably for 30 minutes or more at a temperature equal to or more than 800null C. while flowing a dry gas in the through-holes 9. As a result, the OH group which exists on the surfaces of the inner walls 5a of the through-holes 9 of the preform 5 is discharged outside the preform. Subsequently, the preform 5 is drawn into an optical fiber.

    Abstract translation: 提供一种光纤，其具有沿着传输损耗大大降低的轴线延伸的孔及其制造方法。 首先，在沿着预成型体轴线延伸的预成型体5中形成有多个通孔9。 接着，在通气孔9中使干燥气体流通的同时，在等于或大于800℃的温度下，通过加热装置24在炉中加热预制件5，优选30分钟以上。结果，OH 存在于预成型体5的通孔9的内壁5a的表面上的组被排出到预成型体的外部。 随后，预成型件5被拉入光纤。

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