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    SYNTHETIC AMORPHOUS SILICA POWDER AND METHOD FOR PRODUCING SAME
    141.
    发明申请
    SYNTHETIC AMORPHOUS SILICA POWDER AND METHOD FOR PRODUCING SAME 有权
    合成无定形二氧化硅粉及其生产方法

    公开(公告)号：US20120321895A1

    公开(公告)日：2012-12-20

    申请号：US13520801

    申请日：2010-12-24

    Applicant: Toshiaki Ueda

    Inventor： Toshiaki Ueda

    IPC: C01B33/158 ,  C03B19/10 ,  C03C12/00

    CPC classification number: C03B19/1065 ,  C01B33/14 ,  C01B33/18 ,  C01B33/181 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2006/12 ,  C03B19/1095 ,  C03B2201/02 ,  C03C3/06 ,  C03C23/0075 ,  Y10T428/2982

    Abstract: The synthetic amorphous silica powder of the present invention is characterized in that it comprises a synthetic amorphous silica powder obtained by applying a spheroidizing treatment to a silica powder, and by subsequently cleaning and drying it so that the synthetic amorphous silica powder has an average particle diameter D50 of 10 to 2,000 μm; wherein the synthetic amorphous silica powder has: a quotient of 1.00 to 1.35 obtained by dividing a BET specific surface area of the powder by a theoretical specific surface area calculated from the average particle diameter D50; a real density of 2.10 to 2.20 g/cm3; an intra-particulate porosity of 0 to 0.05; a circularity of 0.75 to 1.00; and an unmolten ratio of 0.00 to 0.25.

    Abstract translation: 本发明的合成无定形二氧化硅粉末的特征在于，其包含通过对二氧化硅粉末进行球化处理得到的合成无定形二氧化硅粉末，然后进行清洗和干燥，使得合成的无定形二氧化硅粉末的平均粒径 D50为10〜2000μm; 其中所述合成无定形二氧化硅粉末具有：通过将粉末的BET比表面积除以由平均粒径D50计算出的理论比表面积获得的1.00至1.35的商数; 实际密度为2.10〜2.20g / cm3; 颗粒内孔隙率为0至0.05; 0.75〜1.00的圆形度; 和0.00〜0.25的未摩尔比。

    Single-Mode Optical Fiber
    142.
    发明申请
    Single-Mode Optical Fiber 有权
    单模光纤

    公开(公告)号：US20120301093A1

    公开(公告)日：2012-11-29

    申请号：US13481150

    申请日：2012-05-25

    Applicant: Pierre Sillard ,  Marianne Bigot-Astruc

    Inventor： Pierre Sillard ,  Marianne Bigot-Astruc

    IPC: G02B6/036 ,  G02B6/02

    CPC classification number: G02B6/0365 ,  C03B37/01211 ,  C03B37/01413 ,  C03B37/01807 ,  C03B37/01861 ,  C03B2201/02 ,  C03B2201/12 ,  G02B6/03605 ,  G02B6/03627 ,  G02B6/03666

    Abstract: A single-mode optical fiber includes a central core surrounded by an outer cladding. The optical fiber includes at least first and second depressed claddings positioned between the central core and the outer cladding. The central core typically has a radius of between about 3.5 microns and 5.5 microns and a refractive-index difference with the outer cladding of between about −1×10−3 and 3×10−3. The first depressed cladding typically has an outer radius of between about 9 microns and 15 microns and a refractive-index difference with the outer cladding of between about −5.5×10−3 and −2.5×10−3. The second depressed cladding typically has an outer radius of between about 38 microns and 42 microns and a refractive-index difference with the first depressed cladding of between about −0.5×10−3 and 0.5×10−3.

    Abstract translation: 单模光纤包括由外包层包围的中心芯。 光纤包括位于中心芯和外包层之间的至少第一和第二凹陷包层。 中心芯通常具有在约3.5微米至5.5微米之间的半径，并且与外包层的折射率差在约-1×10-3至3×10-3之间。 第一凹陷包层通常具有在约9微米至15微米之间的外半径，并且与外包层的折射率差在约-5.5×10-3和-2.5×10-3之间。 第二凹陷包层通常具有介于约38微米和42微米之间的外半径，并且与第一凹陷包层的折射率差在约-0.5×10-3和0.5×10-3之间。

    SINGLE MODE OPTICAL FIBER WITH IMPROVED BEND PERFORMANCE
    143.
    发明申请
    SINGLE MODE OPTICAL FIBER WITH IMPROVED BEND PERFORMANCE 有权
    单模光纤具有改进的弯曲性能

    公开(公告)号：US20110091175A1

    公开(公告)日：2011-04-21

    申请号：US12892752

    申请日：2010-09-28

    Applicant: PAUL E. SANDERS ,  Eward M. Dowd ,  Brian J. Pike

    Inventor： PAUL E. SANDERS ,  Eward M. Dowd ,  Brian J. Pike

    IPC: G02B6/028 ,  C03B37/075

    CPC classification number: G02B6/03605 ,  C03B37/01853 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  G02B6/03627 ,  Y02P40/57

    Abstract: Methods and apparatus relate to optical fibers suitable for use in sensing applications exposed to radiation environments. The fibers include a core of pure silica or chlorine doped silica surrounded by a fluorinated silica cladding. These glasses for the core and cladding utilize dopants that resist radiation-induced attenuation. A two step process for forming the cladding can achieve necessary concentrations of the fluorine by performing a soot deposition process in a different environment from a consolidation process where the soot is sintered into a glass. Concentration of fluorine doped into the cladding layer enables obtaining a numerical aperture that confines a mono-mode of the fiber to resist bend-induced attenuation. Dimensions of the fiber further facilitate bending ability of the fiber.

    Abstract translation: 方法和装置涉及适用于感测暴露于辐射环境的应用的光纤。 纤维包括由氟化石英包层包围的纯二氧化硅核心或掺杂氯的二氧化硅。 用于芯和包层的这些玻璃利用了抵抗辐射诱导衰减的掺杂剂。 用于形成包层的两步法可以通过在将烟灰烧结成玻璃的固结过程的不同环境中进行烟灰沉积工艺来实现所需的氟浓度。 掺杂到包层中的氟的浓度使得能够获得限制光纤的单模以抵抗弯曲引起的衰减的数值孔径。 纤维尺寸进一步提高了纤维的弯曲能力。

    SUBWAVELENGTH-DIAMETER SILICA WIRES FOR LOW-LOSS OPTICAL WAVEGUIDING
    147.
    发明申请
    SUBWAVELENGTH-DIAMETER SILICA WIRES FOR LOW-LOSS OPTICAL WAVEGUIDING 失效
    用于低损耗光波导的亚波长直径二氧化硅线

    公开(公告)号：US20090003783A1

    公开(公告)日：2009-01-01

    申请号：US12169173

    申请日：2008-07-08

    Applicant: Eric Mazur ,  Limin Tong ,  Rafael Gattass

    Inventor： Eric Mazur ,  Limin Tong ,  Rafael Gattass

    IPC: G02B6/04

    CPC classification number: G02B6/107 ,  B82Y20/00 ,  C03B37/025 ,  C03B37/027 ,  C03B37/15 ,  C03B2201/02 ,  C03B2201/34 ,  G02B6/2552 ,  G02B6/2835

    Abstract: The present invention provides nanometer-sized diameter silica fibers that exhibit high diameter uniformity and surface smoothness. The silica fibers can have diameters in a range of a about 20 nm to about 1000 nm. An exemplary method according to one embodiment of the invention for generating such fibers utilizes a two-step process in which in an initial step a micrometer sized diameter silica preform fiber is generated, and in a second step, the silica preform is drawn while coupled to a support element to form a nanometer sized diameter silica fiber. The portion of the support element to which the preform is coupled is maintained at a temperature suitable for drawing the nansized fiber, and is preferably controlled to exhibit a temporally stable temperature profile.

    Abstract translation: 本发明提供了纳米级直径的二氧化硅纤维，其表现出高直径均匀性和表面光滑度。 二氧化硅纤维的直径可以在约20nm至约1000nm的范围内。 根据用于产生这种纤维的本发明的一个实施方案的示例性方法利用两步法，其中在初始步骤中产生微米尺寸直径的二氧化硅预制纤维，并且在第二步骤中，将二氧化硅预制件拉制，同时连接到 形成纳米尺寸直径的二氧化硅纤维的支撑元件。 将预型件连接到的支撑元件的部分保持在适于拉制纳米纤维的温度，并且优选地被控制以呈现时间上稳定的温度分布。

    SINGLE MODE OPTICAL FIBER WITH IMPROVED BEND PERFORMANCE
    148.
    发明申请
    SINGLE MODE OPTICAL FIBER WITH IMPROVED BEND PERFORMANCE 有权
    单模光纤具有改进的弯曲性能

    公开(公告)号：US20080273849A1

    公开(公告)日：2008-11-06

    申请号：US11744327

    申请日：2007-05-04

    Applicant: Paul E. Sanders ,  Edward M. Dowd ,  Brian J. Pike

    Inventor： Paul E. Sanders ,  Edward M. Dowd ,  Brian J. Pike

    IPC: G02B6/036 ,  C03B37/023

    CPC classification number: G02B6/03605 ,  C03B37/01853 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  G02B6/03627 ,  Y02P40/57

    Abstract: Methods and apparatus relate to optical fibers suitable for use in sensing applications exposed to radiation environments. The fibers include a core of pure silica or chlorine doped silica surrounded by a fluorinated silica cladding. These glasses for the core and cladding utilize dopants that resist radiation-induced attenuation. A two step process for forming the cladding can achieve necessary concentrations of the fluorine by performing a soot deposition process in a different environment from a consolidation process where the soot is sintered into a glass. Concentration of fluorine doped into the cladding layer enables obtaining a numerical aperture that confines a mono-mode of the fiber to resist bend-induced attenuation. Dimensions of the fiber further facilitate bending ability of the fiber.

    Abstract translation: 方法和装置涉及适用于感测暴露于辐射环境的应用的光纤。 纤维包括由氟化石英包层包围的纯二氧化硅核心或掺杂氯的二氧化硅。 用于芯和包层的这些玻璃利用了抵抗辐射诱导衰减的掺杂剂。 用于形成包层的两步法可以通过在将烟灰烧结成玻璃的固结过程的不同环境中进行烟灰沉积工艺来实现所需的氟浓度。 掺杂到包层中的氟的浓度使得能够获得限制光纤的单模以抵抗弯曲引起的衰减的数值孔径。 纤维尺寸进一步提高了纤维的弯曲能力。

    Manufacture of synthetic quartz glass ingot and synthetic quartz glass member
    150.
    发明申请
    Manufacture of synthetic quartz glass ingot and synthetic quartz glass member 有权
    合成石英玻璃锭和合成石英玻璃构件的制造

    公开(公告)号：US20080115533A1

    公开(公告)日：2008-05-22

    申请号：US11896873

    申请日：2007-09-06

    Applicant: Hisatoshi Otsuka ,  Kazuo Shirota ,  Osamu Sekizawa

    Inventor： Hisatoshi Otsuka ,  Kazuo Shirota ,  Osamu Sekizawa

    IPC: C03B19/00

    CPC classification number: C03B19/14 ,  C03B2201/02 ,  C03B2207/20 ,  C03B2207/62 ,  C03B2207/66

    Abstract: A synthetic quartz glass ingot is prepared by vapor phase hydrolyzing or oxidatively decomposing a silica feedstock in a flame to form fine particles of silica, depositing the silica particles on a target and melting and vitrifying the particles to form a synthetic quartz glass ingot on the target while the target is moved back and forth. The method further comprises: (i) continuously feeding the silica feedstock at a predetermined rate, (ii) keeping the flame in constant contact with an overall growing face, (iii) cyclically repeating the back and forth movement of the target at a predetermined speed, and (iv) maintaining the shape of the growing ingot unchanged.

    Abstract translation: 通过气相水解或氧化分解火焰中的二氧化硅原料来制备合成石英玻璃锭，以形成二氧化硅细颗粒，将二氧化硅颗粒沉积在靶上并熔化并玻璃化颗粒以在靶上形成合成石英玻璃锭 而目标是来回移动的。 该方法还包括：（i）以预定速率连续供给二氧化硅原料，（ii）使火焰与整个生长面保持恒定接触，（iii）以预定速度循环地重复靶的前后运动 ，（iv）保持生长锭的形状不变。

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