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    SILICA VESSEL AND PROCESS FOR PRODUCTION THEREOF
    171.
    发明公开
    SILICA VESSEL AND PROCESS FOR PRODUCTION THEREOF 审中-公开
    SILICA-GEFÄSSUND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号：EP2511402A4

    公开(公告)日：2017-06-07

    申请号：EP10835634

    申请日：2010-10-19

    Applicant: SHIN-ETSU QUARTZ PRODUCTS CO LTD ,  HERAEUS QUARZGLAS

    Inventor： YAMAGATA SHIGERU ,  USUI TOMOMI

    IPC: C03B19/09 ,  C03C3/06 ,  C30B15/10 ,  C30B29/06 ,  C30B35/00

    CPC classification number: B65D13/02 ,  C03B19/095 ,  C03B2201/54 ,  C03C3/06 ,  C03C2201/54 ,  C30B15/10 ,  C30B29/06 ,  C30B35/002 ,  Y02P40/57

    Abstract: Disclosed is a process for the production of a silica vessel which comprises both a base body that contains bubbles in the outer peripheral portion and an inner layer that consists of transparent silica glass and that is formed on the inner surface of the base body. The process comprises: preparing a base body-forming raw material powder that has a total concentration of Li, Na and K of 50wt.ppm or less and an inner layer-forming raw material powder that contains Ca, Sr and Ba in a total amount of 50 to 2000wt.ppm; forming a preform for the base body in a mold; forming a preform for the inner layer on the inner surface of the perform for the base body; and heating the thus-obtained composite preform in a gaseous atmosphere that contains hydrogen, helium, or a mixture of both in an amount exceeding 10vol% by an electric discharge heating-melting method from the inside of the composite preform to convert the outer peripheral portion of the preform for the base body into a sintered body and to convert the inner peripheral portion of the preform for the base body and the preform for the inner layer into a molten glass body. Thus, both a process by which a silica vessel with high dimensional accuracy and high heat resistance can be produced at a low cost and such a silica vessel are provide

    Abstract translation: 本发明公开了一种制造二氧化硅容器的方法，该容器包括在外周部分包含气泡的基体和由透明二氧化硅玻璃构成并形成在基体内表面上的内层。 该方法包括：准备Li，Na和K的总浓度为50重量ppm以下的基体形成原料粉末和含有总量为Ca，Sr和Ba的内层形成原料粉末 为50〜2000重量ppm; 在模具中形成用于基体的预成型件; 在所述基体的所述表面的内表面上形成用于所述内层的预制件; 以及通过放电加热熔融法，在含有氢气，氦气或二者的混合物的气体气氛中，从复合预制品内部通过放电加热熔化法加热如此获得的复合预制品，以将外周部分 将用于基体的预成型体制成烧结体，并将用于基体的预成型体的内周部分和用于内层的预制体转变成熔融玻璃体。 因此，能够以低成本制造尺寸精度高且耐热性高的二氧化硅容器，并且能够提供这样的二氧化硅容器

    SILICA VESSEL AND PROCESS FOR PRODUCTION THEREOF
    173.
    发明公开
    SILICA VESSEL AND PROCESS FOR PRODUCTION THEREOF 审中-公开
    二氧化硅容器及其生产方法

    公开(公告)号：EP2511402A1

    公开(公告)日：2012-10-17

    申请号：EP10835634.6

    申请日：2010-10-19

    Applicant: Shin-Etsu Quartz Products Co.,Ltd. ,  Heraeus Quarzglas GmbH & Co. KG

    Inventor： YAMAGATA, Shigeru ,  USUI, Tomomi

    IPC: C30B29/06 ,  C03B20/00 ,  C30B15/10

    CPC classification number: B65D13/02 ,  C03B19/095 ,  C03B2201/54 ,  C03C3/06 ,  C03C2201/54 ,  C30B15/10 ,  C30B29/06 ,  C30B35/002 ,  Y02P40/57

    Abstract: Disclosed is a process for the production of a silica vessel which comprises both a base body that contains bubbles in the outer peripheral portion and an inner layer that consists of transparent silica glass and that is formed on the inner surface of the base body. The process comprises: preparing a base body-forming raw material powder that has a total concentration of Li, Na and K of 50wt.ppm or less and an inner layer-forming raw material powder that contains Ca, Sr and Ba in a total amount of 50 to 2000wt.ppm; forming a preform for the base body in a mold; forming a preform for the inner layer on the inner surface of the perform for the base body; and heating the thus-obtained composite preform in a gaseous atmosphere that contains hydrogen, helium, or a mixture of both in an amount exceeding 10vol% by an electric discharge heating-melting method from the inside of the composite preform to convert the outer peripheral portion of the preform for the base body into a sintered body and to convert the inner peripheral portion of the preform for the base body and the preform for the inner layer into a molten glass body. Thus, both a process by which a silica vessel with high dimensional accuracy and high heat resistance can be produced at a low cost and such a silica vessel are provide

    Abstract translation: 本发明公开了一种制造二氧化硅容器的方法，该容器包括在外周部分包含气泡的基体和由透明二氧化硅玻璃构成并形成在基体内表面上的内层。 该方法包括：准备Li，Na和K的总浓度为50重量ppm以下的基体形成原料粉末和含有总量为Ca，Sr和Ba的内层形成原料粉末 为50〜2000重量ppm; 在模具中形成用于基体的预成型件; 在所述基体的所述表面的内表面上形成用于所述内层的预制件; 以及通过放电加热熔融法，在含有氢气，氦气或二者的混合物的气体气氛中，从复合预制品内部通过放电加热熔化法加热如此获得的复合预制品，以将外周部分 将用于基体的预成型体制成烧结体，并将用于基体的预成型体的内周部分和用于内层的预制体转变成熔融玻璃体。 因此，能够以低成本制造尺寸精度高且耐热性高的二氧化硅容器，并且能够提供这样的二氧化硅容器

    AN IMPROVED METHOD FOR FABRICATING RARE EARTH (RE) DOPED OPTICAL FIBER USING A NEW CODOPANT
    174.
    发明公开
    AN IMPROVED METHOD FOR FABRICATING RARE EARTH (RE) DOPED OPTICAL FIBER USING A NEW CODOPANT 审中-公开
    改进方法有稀土（SE）掺杂的光纤用改进的CODOTIERSTOFFS PRODUCING

    公开(公告)号：EP2411340A2

    公开(公告)日：2012-02-01

    申请号：EP10720035.4

    申请日：2010-03-29

    Applicant: Council of Scientific & Industrial Research ,  Department Of Information Technology

    Inventor： SEN, Ranjan ,  DHAR, Anirban ,  PAUL, Mukul, Chandra ,  MAITI, Himadri, Sekhar

    IPC: C03B37/018

    CPC classification number: C03B37/01838 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/54 ,  C03C3/095 ,  C03C4/0071 ,  C03C13/046 ,  Y02P40/57

    Abstract: The present invention provides a method of making rare earth (RE) doped optical fiber using BaO as co-dopant instead of Al or P commonly used for incorporation of the RE in silica glass by MCVD and solution doping technique. The method comprises deposition of particulate layer of GeO
    2 doped SiO
    2 with or without small P
    2 O
    5 for formation of the core and solution doping by soaking the porous soot layer into an aqueous solution of RE and Ba containing salt. This is followed by dehydration and sintering of the soaked deposit, collapsing at a high temperature to produce the preform and drawing of fibers of appropriate dimension. The use of Ba-oxide enables to eliminate unwanted core-clad interface defect which is common in case of Al doped fibers. The fibers also show good RE uniformity, relatively low optical loss in the 0.6-1.6 μm wavelength region and good optical properties suitable for their application in amplifiers, fiber lasers and sensor devices.

    Abstract translation: 本发明提供了制备稀土（RE）掺杂的光纤用的BaO作为常用于通过MCVD和溶液掺杂技术在石英玻璃中的RE的掺入共掺杂剂代替Al或P纤维的方法。 该方法包括的GeO 2的微粒层的沉积掺杂的SiO 2具有或不具有由多孔烟灰层浸泡成RE的wässrige溶液和含有盐的Ba小P2O5用于形成芯和溶液掺杂的。 这是通过浸泡沉积物的脱水和烧结其次，在高温下塌陷，以产生适当尺寸的纤维预成型件和绘图。 使用钡的氧化物可以消除不需要的芯 - 包层界面缺陷所有这是常见以Al掺杂光纤的情况下。 因此，该纤维显示出良好的均匀性RE，在0.6-1.6妈妈波长区域相对较低的光损耗和良好的光学性质适合于它们在放大器，光纤激光器和传感器装置的应用。

    Erbium-doped multicomponent glasses manufactured by the sol-gel method
    176.
    发明公开
    Erbium-doped multicomponent glasses manufactured by the sol-gel method 审中-公开
    Durch Sol-Gel Verfahren hergestellte Erbium dotierteMehrkomponentengläser

    公开(公告)号：EP1132349A1

    公开(公告)日：2001-09-12

    申请号：EP00400693.8

    申请日：2000-03-10

    Applicant: CORNING INCORPORATED

    Inventor： Prassas, Michel ,  Waku, Jean

    IPC: C03C1/00 ,  C03C3/06 ,  C03C3/095 ,  C03C3/102 ,  C03C4/12 ,  C03C13/04

    CPC classification number: C03C1/006 ,  C03B19/12 ,  C03B2201/30 ,  C03B2201/36 ,  C03B2201/42 ,  C03B2201/50 ,  C03B2201/54 ,  C03C3/06 ,  C03C3/095 ,  C03C13/046 ,  C03C2201/31 ,  C03C2201/36 ,  C03C2201/42 ,  C03C2201/50 ,  C03C2201/54 ,  C03C2203/22 ,  C03C2203/26

    Abstract: A multicomponent particulate gel includes 80-100 mole% SiO 2 , 1-10 mole% X 2 O, 1-10 mole% YO, 1-15 mole% Al 2 O 3 , and 0.1-5.0 weight% Er 2 O 3 , where X represents lithium, sodium, potassium, or mixtures thereof and Y represents calcium, barium, magnesium, lead or mixtures thereof, and the ratio of Al 2 O 3 to (X 2 O+YO) is between about 0.9 and about 2.5. A process of manufacturing the gel includes hydrolyzing alkoxide derivatives of silicon, aluminum, erbium, lithium, sodium, potassium, calcium, barium, magnesium, lead or mixtures thereof in water to generate their respective hydroxide derivatives; polymerizing the hydroxide derivatives to produce a gel slurry comprising an essentially silica network; and drying the gel slurry to produce the gel.

    Abstract translation: 多组分颗粒凝胶包括80-100摩尔％的SiO 2，1-10摩尔％的X 2 O，1-10摩尔％的YO，1-15摩尔％的Al 2 O 3和0.1-5.0重量的Er 2 O 3，其中X代表锂，钠，钾， 或其混合物，Y表示钙，钡，镁，铅或其混合物，Al 2 O 3与（X 2 O + YO）的比例在约0.9至约2.5之间。 制造凝胶的方​​法包括在水中水解硅，铝，铒，锂，钠，钾，钙，钡，镁，铅或其混合物的醇盐衍生物以产生它们各自的氢氧化物衍生物; 聚合氢氧化物衍生物以产生包含基本上二氧化硅网络的凝胶淤浆; 并干燥凝胶浆以产生凝胶。

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