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    Optical fiber containing alkali metal oxide
    63.
    发明申请
    Optical fiber containing alkali metal oxide 有权
    含有碱金属氧化物的光纤

    公开(公告)号：US20070297735A1

    公开(公告)日：2007-12-27

    申请号：US11801472

    申请日：2007-05-10

    Applicant: Rostislav Radievich Khrapko ,  Hazel B. Matthews

    Inventor： Rostislav Radievich Khrapko ,  Hazel B. Matthews

    IPC: G02B6/036 ,  G02B6/02

    CPC classification number: G02B6/02 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2203/26 ,  C03B2203/29 ,  C03C3/06 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/50 ,  G02B6/02014 ,  G02B6/02266

    Abstract: Disclosed is an optical fiber having a silica-based core comprising an alkali metal oxide selected from the group consisting of K2O, Na2O, LiO2, Rb2O, Cs2O and mixtures thereof in an average concentration in said core between about 50 and 500 ppm by weight, said core further comprising chlorine and fluorine, wherein the average concentration of fluorine in said core is greater than the average concentration of alkali metal oxide in said core and the average concentration of chlorine in said core is greater than the average concentration of alkali metal oxide in said core; and a silica-based cladding surrounding and directly adjacent the core. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained.

    Abstract translation: 公开了一种光纤，其具有二氧化硅基核，其包含选自K 2 O 2，Na 2 O，LiO 2 O 2的碱金属氧化物， 其中所述核心中的平均浓度为约50-500ppm（重量），所述核心还包含氯和/或 氟，其中所述芯中的氟的平均浓度大于所述芯中的碱金属氧化物的平均浓度，并且所述芯中的平均氯浓度大于所述芯中碱金属氧化物的平均浓度; 以及围绕并直接邻近芯的二氧化硅基包层。 通过适当地选择芯和包层中的碱金属氧化物掺杂剂的浓度，可以获得低损耗光纤。

    Infrared absorbing filter and its fabrication method
    67.
    发明申请
    Infrared absorbing filter and its fabrication method 失效
    红外吸收滤光片及其制作方法

    公开(公告)号：US20030125187A1

    公开(公告)日：2003-07-03

    申请号：US10331920

    申请日：2002-12-31

    Inventor： Yoshinobu Akimoto ,  Hiroaki Kinoshita

    IPC: C03C003/06 ,  C03B008/02 ,  C03C003/078

    CPC classification number: C03C1/006 ,  C03B19/12 ,  C03B2201/40 ,  C03B2201/50 ,  C03C3/06 ,  C03C3/078 ,  C03C4/082 ,  C03C13/046 ,  C03C2201/30 ,  C03C2201/40 ,  C03C2201/50 ,  C03C2203/20 ,  Y10S501/905

    Abstract: An infrared absorption filter consisting of 70 to 98 mol % of SiO2, 1 to 12 mol % of CuO and 1 to 18 mol % of a network modifier oxide than CuO or CdO is provided. A process of fabricating an infrared absorption filter is also provided. The process comprises introducing a divalent copper compound and a compound of a metal species acting as a network modifier oxide in the form of metal ions into a wet gel. The wet gel can be dipped in a dipping solution to precipitate the divalent copper compound and the compound of a metal species acting as the network modifier oxide in the wet gel. The wet gel can be dried and heated, thereby obtaining an infrared absorption glass. The infrared absorption glass can be cut and polished, thereby fabricating a filter.

    Abstract translation: 提供由70〜98摩尔％的SiO 2，1〜12摩尔％的CuO和1〜18摩尔％的网状改性剂氧化物与CuO或CdO组成的红外吸收滤光片。 还提供了一种制造红外吸收滤光片的工艺。 该方法包括将二价铜化合物和作为金属离子形式的网络改性剂氧化物的金属物质的化合物引入湿凝胶中。 可以将湿凝胶浸入浸渍溶液中以将二价铜化合物和作为网状改性剂氧化物的金属物质的化合物沉淀在湿凝胶中。 湿凝胶可以干燥和加热，从而获得红外吸收玻璃。 可以对红外吸收玻璃进行切割和抛光，从而制造过滤器。

    Synthetic quartz glass member for use in ArF excimer laser lithography
    68.
    发明授权
    Synthetic quartz glass member for use in ArF excimer laser lithography 有权
    用于ArF准分子激光光刻的合成石英玻璃构件

    公开(公告)号：US06480518B1

    公开(公告)日：2002-11-12

    申请号：US09517888

    申请日：2000-03-03

    Applicant: Akira Fujinoki ,  Takayuki Oshima ,  Hiroyuki Nishimura ,  Yasuyuki Yaginuma

    Inventor： Akira Fujinoki ,  Takayuki Oshima ,  Hiroyuki Nishimura ,  Yasuyuki Yaginuma

    IPC: H01S322

    CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B2201/07 ,  C03B2201/21 ,  C03C4/0085 ,  C03C23/002 ,  C03C2201/21 ,  C03C2201/50 ,  C03C2203/42 ,  C03C2203/50

    Abstract: A synthetic glass member for use in excimer laser lithography, having superior homogeneity, high transmittance for ArF excimer laser beams and an excellent resistance against lasers is made from high purity synthetic quartz glass, and it is characterized in that layered structures, striae in three directions and internal strains are thermally and mechanically removed, the distribution of refractive index (&Dgr;n) in a plane orthogonal to the optical axis is up to about 1×10−6, the distribution of refractive index (&Dgr;n) in a plane parallel to the optical axis is up to about 5×10−6, the birefringence is up to about 2 nm/cm, the hydrogen molecule concentration is at least about 2×1017 molecules/cm3, and the internal transmittance is at least about 99.8% at a wavelength of 193.4 nm.

    Abstract translation: 用于准分子激光光刻的合成玻璃构件，具有优异的均匀性，对ArF准分子激光束的高透射率和优异的抗激光性能由高纯度合成石英玻璃制成，其特征在于层状结构，沿三个方向 并且内部应变被热和机械去除，在与光轴正交的平面中折射率（DELTAn）的分布高达约1×10 -6，平行于光轴的平面中的折射率分布（DELTAn）为 高达约5×10 -6，双折射高达约2nm / cm，氢分子浓度为至少约2×10 17分子/ cm 3，内部透射率在193.4nm波长处为至少约99.8％。

    Ultralow-loss silica glass and optical fibers using the same
    70.
    发明授权
    Ultralow-loss silica glass and optical fibers using the same 有权
    超低损耗石英玻璃和使用其的光纤

    公开(公告)号：US06153546A

    公开(公告)日：2000-11-28

    申请号：US229582

    申请日：1999-01-13

    Applicant: Kazuya Saitoh ,  Akira Ikushima

    Inventor： Kazuya Saitoh ,  Akira Ikushima

    IPC: C03C3/06 ,  C03C13/04

    CPC classification number: C03C13/046 ,  C03B37/014 ,  C03C3/06 ,  G02B6/02 ,  C03B2201/07 ,  C03B2201/30 ,  C03B2201/50 ,  C03B2201/54 ,  C03C2201/40 ,  C03C2201/50 ,  C03C2201/54

    Abstract: This ultralow-loss glass is characterized in that high purity silica glass contains 1 to 500 wt.ppm of at least one network modifying oxide. It is assumed that the network modifying oxide appropriately loosens the tetrahedral network structure of silica and hence Rayleigh scattering is decreased. Examples of the network modifying oxide include Na.sub.2 O, K.sub.2 O, Li.sub.2 O, MgO, CaO, and PbO. Since Rayleigh scattering losses are minimal in comparison with those of high purity silica glass, this impurity-added silica glass is excellent as a base material of a glass fiber for a long-distance transmission.

    Abstract translation: 这种超低损耗玻璃的特征在于，高纯度二氧化硅玻璃含有1至500重量ppm的至少一种网络改性氧化物。 假设网络修饰氧化物适当地松散二氧化硅的四面体网络结构，因此瑞利散射降低。 网络改性氧化物的实例包括Na 2 O，K 2 O，Li 2 O，MgO，CaO和PbO。 由于与高纯度二氧化硅玻璃相比，瑞利散射损失最小，所以这种添加了杂质的石英玻璃作为用于长距离传输的玻璃纤维的基材是优异的。

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