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    OPTICAL FIBER
    31.
    发明申请
    OPTICAL FIBER 有权
    光纤

    公开(公告)号：US20160147010A1

    公开(公告)日：2016-05-26

    申请号：US14943190

    申请日：2015-11-17

    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

    Inventor： Yoshiaki TAMURA ,  Tetsuya HARUNA ,  Yoshihiro SAITO ,  Yuki KAWAGUCHI ,  Masaaki HIRANO

    IPC: G02B6/02

    CPC classification number: G02B6/02 ,  C03B37/01211 ,  C03B37/014 ,  C03B37/01807 ,  C03B37/01861 ,  C03B37/01892 ,  C03B2201/06 ,  C03B2201/07 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2203/26 ,  C03B2205/40 ,  C03C3/06 ,  C03C13/045 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/50 ,  C03C2203/40

    Abstract: An optical fiber containing an alkali metal and capable of reducing Rayleigh scattering loss is provided. An optical fiber has a core and a cladding made of silica glass and enclosing the core. The cladding contains fluorine and has a refractive index lower than the refractive index of the core. The core contains first group dopants selected from the group of Na element, K element, or a compound thereof at an average concentration of 0.2 ppm or more and 10 ppm or less. The core also contains second group dopants for reducing the viscosity of silica glass and having a diffusion coefficient of 1×10−12 cm2/s or more and smaller than the diffusion coefficient of the first group dopants, by an average concentration of 0.2 ppm or more at a temperature of 2000° C. to 2300° C.

    Abstract translation: 提供含有碱金属并能够降低瑞利散射损失的光纤。 光纤具有由石英玻璃制成的芯和包层，并且包围芯。 包层含氟，折射率低于芯的折射率。 核心包含平均浓度为0.2ppm以上且10ppm以下的选自Na元素，K元素或其化合物的第一族掺杂剂。 该芯还含有第二组掺杂剂，用于降低石英玻璃的粘度，并且扩散系数为1×10-12cm2 / s以上且小于第一组掺杂剂的扩散系数，平均浓度为0.2ppm或 更高温度在2000°C至2300°C

    METHOD FOR PRODUCING DEUTERIUM-TREATED OPTICAL FIBER, AND DEUTERIUM-TREATED OPTICAL FIBER
    33.
    发明申请
    METHOD FOR PRODUCING DEUTERIUM-TREATED OPTICAL FIBER, AND DEUTERIUM-TREATED OPTICAL FIBER 审中-公开
    用于制造经过处理的光纤的方法和被处理的光纤

    公开(公告)号：US20150260912A1

    公开(公告)日：2015-09-17

    申请号：US14424053

    申请日：2013-08-23

    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

    Inventor： Tetsuya Haruna ,  Masaaki Hirano ,  Yoshiaki Tamura

    IPC: G02B6/02

    CPC classification number: G02B6/02214 ,  C03B37/01807 ,  C03B37/10 ,  C03B2201/22 ,  C03B2201/50 ,  C03B2207/90 ,  C03C3/06 ,  C03C13/047 ,  C03C25/60 ,  C03C25/607 ,  C03C2201/22 ,  C03C2201/50

    Abstract: An alkali-metal-doped core optical fiber having high hydrogen resistance and a method for manufacturing such an optical fiber are provided. A method for manufacturing a deuterium-treated optical fiber according to the present invention includes a preform-forming step of forming a silica glass optical fiber preform having a core doped with an alkali metal element, a drawing step of drawing the optical fiber preform to form an optical fiber, and an exposing step of exposing the optical fiber to a deuterium gas atmosphere. Alkali-metal-doped core optical fibers can be manufactured by using this method. In the exposing step, the optical fiber is exposed to an atmosphere containing deuterium gas at a temperature of 20° C. or more under conditions where (deuterium gas partial pressure)×(exposure time) is 50 kPa·hour or more.

    Abstract translation: 提供了具有高耐电阻性的碱金属掺杂的核心光纤和这种光纤的制造方法。 根据本发明的制造氘处理光纤的方法包括：形成具有掺杂有碱金属元素的芯的石英玻璃光纤预制棒的预成型体形成步骤，拉制所述光纤预制件以形成 光纤，以及将光纤暴露于氘气气氛的曝光步骤。 碱金属掺杂的核心光纤可以通过使用这种方法制造。 在曝光步骤中，在（氘气分压）×（曝光时间）为50kPa·小时以上的条件下，将光纤在20℃以上的温度下暴露于含有氘气的气氛中。

    Discharge lamp and outer bulb therefor
    37.
    发明申请
    Discharge lamp and outer bulb therefor 失效
    放电灯及外灯

    公开(公告)号：US20030048052A1

    公开(公告)日：2003-03-13

    申请号：US10227221

    申请日：2002-08-23

    Inventor： Marcus Kubon ,  Juergen Schoeneich ,  Paul Hellwig

    IPC: H01J001/02 ,  H01K001/58 ,  H01J007/24 ,  H01J061/52

    CPC classification number: C03C3/06 ,  C03C2201/50 ,  H01J61/302 ,  H01J61/34

    Abstract: A discharge lamp is disclosed comprising an enclosed discharge vessel for the generation of an electrical discharge and a casing made of glass which surrounds the discharge vessel. In order to achieve as constant properties as possible over the service life of the lamp, it is proposed that the glass material of the casing be doped with sodium in a concentration of at least 10 ppm, and preferably at least 30 ppm. According to a further embodiment, it is proposed that other alkali metals (except for sodium) be contained in a maximum concentration of 25 ppm. Surprisingly, by the appropriate choice of the outer bulb, not in direct contact with the actual discharge, the diffusion of sodium from the discharge vessel is reduced. In addition to this, the material of the outer bulb has a reduced inclination to crystallization.

    Abstract translation: 公开了一种放电灯，其包括用于产生放电的封闭放电容器和围绕放电容器的由玻璃制成的壳体。 为了在灯的使用寿命期内实现尽可能恒定的特性，提出了壳体的玻璃材料以至少10ppm，优选至少30ppm的浓度掺杂钠。 根据另一个实施方案，提出最大浓度为25ppm的其它碱金属（钠除外）。 令人惊奇的是，通过适当选择外部灯泡，与实际放电不直接接触，钠从放电容器扩散减少。 除此之外，外部灯泡的材料具有降低的结晶倾向。

    Optical waveguides and devices including same
    38.
    发明申请
    Optical waveguides and devices including same 失效
    光波导和包括其的器件

    公开(公告)号：US20030039459A1

    公开(公告)日：2003-02-27

    申请号：US10241615

    申请日：2002-09-12

    Inventor： Gilberto Brambilla ,  Valerio Pruneri ,  Laurence Reekie

    IPC: G02B006/10 ,  G02B006/34

    CPC classification number: H01S3/0632 ,  C03C3/06 ,  C03C3/078 ,  C03C3/095 ,  C03C4/04 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/40 ,  C03C2201/50 ,  G02B6/02114 ,  G02B6/124 ,  G02B6/13 ,  G02B2006/02161 ,  H01S3/063 ,  H01S3/06708 ,  H01S3/0675 ,  H01S3/1608 ,  H01S3/1611 ,  H01S3/1618 ,  H01S3/1655

    Abstract: A photosensitive glass made of a ternary compound SiO2:SnO2:R2O where R is a Group I element such as Na, K or Li. The addition of an oxide of a Group I element increases the solubility of tin oxide in a silica matrix and produces a glass which is highly photosensitive and in which optically written refractive index modulations have remarkable temperature stability (solid circles) at least as good as that of the binary glass SiO2:SnO2 (open circles) and much superior to that of conventional germanosilicate glass (solid triangles) or borogermanosilicate glass (open triangles). The inclusion of the Group I oxide effectively increases the solubility of tin oxide in the non-crystalline silica matrix well above the 1% limit of SiO2:SnO2 photosensitive glass, at which Sn would normally crystallize in the oxide. By contrast to boron or phosphorous co-dopants, the introduction of the Group I element does not appear to cause any increase in the background refractive index, allowing the manufacture of waveguide devices compatible with standard telecommunication fibers.

    Abstract translation: 由三元化合物SiO 2：SnO 2 :R 2 O制成的感光玻璃，其中R是Na，K或Li等第I族元素。 添加第I族元素的氧化物增加氧化锡在二氧化硅基质中的溶解度，并产生高度光敏的玻璃，其中光学写入的折射率调节具有显着的温度稳定性（实心圆）至少与 的二元玻璃SiO 2：SnO 2（空心圆），并且比传统的锗硅酸盐玻璃（实心三角形）或硼硅锗酸盐玻璃（空心三角形）更优越。 包含I族氧化物有效地提高了氧化锡在非结晶二氧化硅基质中的溶解度，远高于SiO 2：SnO 2感光玻璃的1％极限，其中Sn通常在氧化物中结晶。 与硼或磷共掺杂物相比，引入I族元素似乎不会引起背景折射率的任何增加，从而允许制造与标准电信光纤兼容的波导器件。

    Infrared absorbing glass, and it's fabrication method
    39.
    发明授权
    Infrared absorbing glass, and it's fabrication method 有权
    红外吸收玻璃，它的制作方法

    公开(公告)号：US06342460B1

    公开(公告)日：2002-01-29

    申请号：US09336678

    申请日：1999-06-21

    Applicant: Yoshinobu Akimoto ,  Hiroaki Kinoshita

    Inventor： Yoshinobu Akimoto ,  Hiroaki Kinoshita

    IPC: C03C304

    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: The invention relates to a glass excellent in infrared absorption capability and corrosion resistance, and its fabrication process. A compound of divalent copper and a compound of a metal species for a network modifier oxide are introduced in a wet gel. Then, the wet gel is dipped in a dipping solution having a low solubility with respect to the compound of divalent copper and the compound of a metal species for a network modifier oxide for the precipitation in the wet gel of the divalent-t copper compound and the compound of a metal species for a network modifier oxide, followed by drying and firing. Thus, an infrared absorbing glass comprising 70 to 98 mol % of SiO2, 1 to 12 mol % of CuO and 1 to 18 mol % of a network modifier oxide other than CuO is fabricated.

    Abstract translation: 本发明涉及一种红外吸收能力和耐腐蚀性优异的玻璃及其制造工艺。 将二价铜的化合物和用于网络改性剂氧化物的金属物质的化合物引入湿凝胶中。 然后，将湿凝胶浸入相对于二价铜化合物的低溶解度的浸渍溶液和用于网络改性剂氧化物的金属物质的化合物，用于在二价铜化合物的湿凝胶中沉淀，以及 用于网络改性剂氧化物的金属物质的化合物，随后进行干燥和烧制。 因此，制造包含70〜98摩尔％的SiO 2，1〜12摩尔％的CuO和1〜18摩尔％的CuO以外的网络改性剂氧化物的红外线吸收玻璃。

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