公开(公告)号：US20160070058A1

公开(公告)日：2016-03-10

申请号：US14945570

申请日：2015-11-19

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Tetsuya NAKANISHI ,  Tetsuya HAYASHI ,  Takashi SASAKI ,  Eisuke SASAOKA

IPC: G02B6/02 ,  G02B6/38

CPC classification number: G02B6/02042 ,  C03B37/01222 ,  C03B37/027 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/04 ,  C03B2203/12 ,  C03B2203/34 ,  G02B6/02395 ,  G02B6/3652 ,  G02B6/3803 ,  G02B6/3838 ,  G02B6/3851

Abstract: The present invention relates to an MCF with a structure for enabling an alignment work with higher accuracy. The MCF has a plurality of cores and a cladding. An outer peripheral shape of the cladding in a cross section of the MCF is comprised of a circumferential portion forming a circumference coincident with an outer periphery of the MCF, and a cut portion. The cut portion has a bottom portion and two contact portions provided on both sides of the bottom portion and projecting more than the bottom portion. When a side face of the MCF is viewed, the two contact portions have flattened faces and the flattened faces of the two contact portions extend along a longitudinal direction of the MCF with the bottom portion in between.

Abstract translation: 本发明涉及具有能够以更高精度实现对准工作的结构的MCF。 MCF具有多个芯和包层。 MCF的横截面中的包层的外周形状包括形成与MCF的外周一致的圆周的周缘部和切断部。 切割部分具有底部和设置在底部两侧的两个接触部分，并且比底部部分突出。 当观察MCF的侧面时，两个接触部分具有平坦的表面，并且两个接触部分的平坦表面沿着MCF的纵向方向延伸，底部部分在其间。

公开(公告)号：US09181121B2

公开(公告)日：2015-11-10

申请号：US14297314

申请日：2014-06-05

Applicant: SUMCO CORPORATION

Inventor： Toshiaki Sudo ,  Eriko Suzuki

IPC: C03B19/09 ,  G01J5/60 ,  G01J5/00 ,  G01J5/08

CPC classification number: C03B19/095 ,  C03B2201/02 ,  G01J5/0022 ,  G01J5/0037 ,  G01J5/0862 ,  Y02P40/57

Abstract: Accurate temperature measurement during manufacturing a vitreous silica crucible is enabled. The present invention provides an apparatus for manufacturing a vitreous silica crucible including: a mold for forming a silica powder layer by supplying silica powder therein; an are discharge unit having carbon electrodes and a power supply unit and for heating and fusing the silica powder layer by arc discharge; and a temperature measurement unit for measuring temperature of a fused portion in the mold, wherein the temperature measurement unit is an radiation thermometer for measuring temperature by detecting radiation energy of a wavelength of 4.8 to 5.2 μm.

Abstract translation: 在制造玻璃状石英坩埚期间能够进行精确的温度测量。 本发明提供一种二氧化硅玻璃坩埚的制造装置，其特征在于，包括：通过在其中供给二氧化硅粉末而形成二氧化硅粉末层的模具; a是具有碳电极和电源单元的放电单元，用于通过电弧放电来加热和熔融二氧化硅粉末层; 以及用于测量模具中的熔融部分的温度的温度测量单元，其中温度测量单元是通过检测4.8至5.2μm的波长的辐射能量来测量温度的辐射温度计。

公开(公告)号：US09128236B2

公开(公告)日：2015-09-08

申请号：US14628077

申请日：2015-02-20

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Tetsuya Nakanishi ,  Tatsuya Konishi ,  Kazuya Kuwahara

IPC: G02B6/02 ,  G02B6/036

CPC classification number: G02B6/036 ,  C03B37/027 ,  C03B37/02718 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/31 ,  C03B2203/22 ,  G02B6/02395 ,  G02B6/03694

Abstract: An inexpensive low-attenuation optical fiber 1 suitable for use as an optical transmission line in an optical access network is a silica based glass optical fiber and includes a core 11 including the center axis, an optical cladding 12 surrounding the core, and a jacket 13 surrounding the optical cladding. The core contains GeO2 and has a relative refractive index difference Δcore, based on the optical cladding, greater than or equal to 0.35% and less than or equal to 0.50% and has a refractive index volume v greater than or equal to 0.045 μm2 and less than or equal to 0.095 μm2. The jacket has a relative refractive index difference ΔJ greater than or equal to 0.03% and less than or equal to 0.20%. Glass constituting the core has a fictive temperature higher than or equal to 1400° C. and lower than or equal to 1590° C. Residual stress in the core is compressive stress that has an absolute value greater than or equal to 5 MPa.

Abstract translation: 适合用作光接入网络中的光传输线的便宜的低衰减光纤1是二氧化硅基玻璃光纤，并且包括包括中心轴的芯11，围绕芯的光学包层12和外壳13 围绕光学包层。 芯包含GeO 2，并且具有基于光学包层的相对折射率差＆Dgr芯，大于或等于0.35％且小于或等于0.50％，并且具有大于或等于0.045μm2的折射率体积v 小于或等于0.095μm2。 护套的相对折射率差Dgr; J大于或等于0.03％且小于或等于0.20％。 构成芯的玻璃具有高于或等于1400℃且低于或等于1590℃的假想温度。芯中的残余应力是绝对值大于或等于5MPa的压应力。

公开(公告)号：US08989545B2

公开(公告)日：2015-03-24

申请号：US14111028

申请日：2012-10-25

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： Tetsuya Nakanishi ,  Tatsuya Konishi ,  Kazuya Kuwahara

IPC: G02B6/02 ,  C03B37/027 ,  G02B6/036

CPC classification number: G02B6/036 ,  C03B37/027 ,  C03B37/02718 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/31 ,  C03B2203/22 ,  G02B6/02395 ,  G02B6/03694

Abstract: An inexpensive low-attenuation optical fiber 1 suitable for use as an optical transmission line in an optical access network is a silica based glass optical fiber and includes a core 11 including the center axis, an optical cladding 12 surrounding the core, and a jacket 13 surrounding the optical cladding. The core contains GeO2 and has a relative refractive index difference Δcore, based on the optical cladding, greater than or equal to 0.35% and less than or equal to 0.50% and has a refractive index volume v greater than or equal to 0.045 μm2 and less than or equal to 0.095 μm2. The jacket has a relative refractive index difference ΔJ greater than or equal to 0.03% and less than or equal to 0.20%. Glass constituting the core has a fictive temperature higher than or equal to 1400° C. and lower than or equal to 1590° C. Residual stress in the core is compressive stress that has an absolute value greater than or equal to 5 MPa.

Abstract translation: 适合用作光接入网络中的光传输线的便宜的低衰减光纤1是二氧化硅基玻璃光纤，并且包括包括中心轴的芯11，围绕芯的光学包层12和外壳13 围绕光学包层。 芯包含GeO 2，并且具有基于光学包层的相对折射率差＆Dgr芯，大于或等于0.35％且小于或等于0.50％，并且具有大于或等于0.045μm2的折射率体积v 小于或等于0.095μm2。 护套的相对折射率差Dgr; J大于或等于0.03％且小于或等于0.20％。 构成芯的玻璃具有高于或等于1400℃且低于或等于1590℃的假想温度。芯中的残余应力是绝对值大于或等于5MPa的压应力。

公开(公告)号：US08798423B2

公开(公告)日：2014-08-05

申请号：US13481150

申请日：2012-05-25

Applicant: Pierre Sillard ,  Marianne Bigot-Astruc

Inventor： Pierre Sillard ,  Marianne Bigot-Astruc

IPC: G02B6/36 ,  C03B37/025 ,  G02B6/036 ,  C03B37/012

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。

公开(公告)号：US20130074551A1

公开(公告)日：2013-03-28

申请号：US13627084

申请日：2012-09-26

Applicant: Eisuke SASAOKA

Inventor： Eisuke SASAOKA

IPC: G02B6/24 ,  C03B37/023

CPC classification number: C03B37/01222 ,  C03B37/01225 ,  C03B37/01234 ,  C03B37/0126 ,  C03B37/0128 ,  C03B37/027 ,  C03B37/02754 ,  C03B37/02781 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2203/14 ,  C03B2203/34 ,  C03B2205/10 ,  G02B6/02042 ,  G02B6/3851 ,  G02B6/3885

Abstract: The present invention, even in the case where the size of a preform itself is increased, enables production of a multi-core optical fiber in which cores are arranged with high accuracy. A plurality of core members each being rod-like are fixed by an array fixing member while a relative positional relation of the plurality of core members is fixed, and the plurality of core members and a cladding member are integrated into one piece, and thus a preform is obtained. By drawing the obtained preform, a multi-core optical fiber in which core arrangement is controlled with high accuracy is obtained.

Abstract translation: 本发明即使在预成型体本身的尺寸增加的情况下，也能够制造高精度地配置有芯的多芯光纤。 通过阵列固定部件固定多个芯棒部件，并且多个芯部件的相对位置关系固定，多个芯体部件和包层部件一体成型， 得到预制件。 通过拉伸所获得的预成型体，可以获得高精度地控制芯布置的多芯光纤。

公开(公告)号：US20110135775A1

公开(公告)日：2011-06-09

申请号：US13057546

申请日：2009-08-03

Applicant: Yoshiyuki Hagihara ,  Yasuyuki Yamamoto

Inventor： Yoshiyuki Hagihara ,  Yasuyuki Yamamoto

IPC: F23D14/22

CPC classification number: F23D14/32 ,  B01J2/02 ,  C03B19/1025 ,  C03B2201/02 ,  F23C2900/07021 ,  F23C2900/07022 ,  F23D14/22

Abstract: A burner for production of inorganic spheroidized particles according to the present invention includes a first raw material supply path (1A) through which a raw material powder is supplied together with a carrier gas; a fuel supply path (4A) disposed around the outer circumference of the first raw material supply path (1A), through which a fuel gas is supplied; a primary oxygen supply path (5A) disposed around the outer circumference of the fuel supply path (4A), through which an oxygen-containing gas is supplied; a second raw material supply path (6A) disposed around the outer circumference of the primary oxygen supply path (5A), through which a raw material powder is supplied together with a carrier gas; and a secondary oxygen supply path (7A) disposed around the outer circumference of the second raw material supply path (6A), through which an oxygen-containing gas is supplied.

Abstract translation: 本发明的无机球状粒子的制造用燃烧器包括：原料粉末与载体一起供给的第一原料供给路径（1A） 设置在第一原料供给路径（1A）的外周的燃料供给路径（4A），供给燃料气体的燃料供给路径（4A） 设置在燃料供给路径（4A）的外周周围的主供氧路径（5A），供给含氧气体的主供氧路径 设置在主氧供给路径（5A）的外周的第二原料供给路径（6A），通过该第一原料供给路径与载气一起供给原料粉末; 以及设置在所述第二原料供给路径（6A）的外周的二次供氧路径（7A），供给所述含氧气体。

公开(公告)号：US20110080590A1

公开(公告)日：2011-04-07

申请号：US12988221

申请日：2009-04-15

Applicant: Eisuke Sasaoka ,  Kazuo Nakamae ,  Toshiki Taru ,  Takuji Nagashima

Inventor： Eisuke Sasaoka ,  Kazuo Nakamae ,  Toshiki Taru ,  Takuji Nagashima

IPC: G01B9/02 ,  G02B6/10 ,  G02B6/00

CPC classification number: G02B6/1225 ,  B82Y20/00 ,  C03B23/047 ,  C03B33/06 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/31 ,  G02B6/12002 ,  G02B6/13 ,  Y02P40/57

Abstract: The present invention relates to an optical waveguide manufacturing method, which excels in mass productivity of a planar optical waveguide. In an aggregating step, plural members (20), which have a rod (21) or pipe (22) shape respectively, are arranged and bundled so as to constitute a substantially similar figure to at least a part of a desired waveguide pattern on a cross-section perpendicular to the longitudinal direction of the members (20). The plural members (20) bundled in the aggregating step are, after being softened by heating, elongated in a longitudinal direction thereof in an elongating step, whereby an elongated body is formed. The elongated body formed in the elongating step is cut along a plane perpendicular to the longitudinal direction of the elongated body in a cutting step. By these steps, a planar optical waveguide, on which a waveguide pattern based on a micro-structure is formed, is manufactured.

Abstract translation: 光波导制造方法技术领域本发明涉及一种平面光波导的质量生产率优异的光波导制造方法。 在聚集步骤中，分别具有棒（21）或管（22）形状的多个构件（20）被布置和捆扎，以便构成与图1中所需的波导图案的至少一部分大致相似的图 横截面垂直于构件（20）的纵向方向。 在聚集步骤中捆扎的多个构件（20）在通过加热软化之后，在拉伸步骤中在其长度方向上伸长，由此形成细长体。 在切割步骤中，沿着与细长体的纵向方向垂直的平面切割在拉伸步骤中形成的细长体。 通过这些步骤，制造其上形成有基于微结构的波导图案的平面光波导。

公开(公告)号：US07805039B2

公开(公告)日：2010-09-28

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: G02B6/02

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。

公开(公告)号：US20100011813A1

公开(公告)日：2010-01-21

申请号：US12504414

申请日：2009-07-16

Applicant: Dai INOUE ,  Takaaki Nagao ,  Hiroyuki KOIDE

Inventor： Dai INOUE ,  Takaaki Nagao ,  Hiroyuki KOIDE

IPC: C03B18/20 ,  C03B5/24

CPC classification number: C03B37/01413 ,  C03B37/0142 ,  C03B2201/02 ,  C03B2201/31 ,  C03B2207/36 ,  C03B2207/70 ,  C03B2207/85 ,  C03B2207/87 ,  Y02P40/57

Abstract: Provided is a quartz glass manufacturing method that involves using one or more burners, supplying hydrogen and oxygen to the one or more burners to generate an oxyhydrogen flame, introducing a silicide into the oxyhydrogen flame, forming a porous base material by depositing silicon dioxide generated from a flame hydrolysis reaction with the silicide, and heating and sintering the porous base material to form transparent glass, the method comprising supplying hydrogen that is stored or made at a normal temperature to the one or more burners; controlling a hydrogen flow rate using a measurement apparatus or control apparatus that performs measurement based on heat capacity of a gas; vaporizing liquid hydrogen stored in a low-temperature storage chamber, and supplying the vaporized liquid hydrogen to the one or more burners as backup hydrogen; switching from the hydrogen to the backup hydrogen; and when switching, adjusting the hydrogen flow rate to a value obtained by multiplying the hydrogen flow rate immediately after switching by a predetermined correction coefficient.

Abstract translation: 提供了一种石英玻璃制造方法，其包括使用一个或多个燃烧器，向一个或多个燃烧器供应氢气和氧气以产生氢氧焰，将硅化物引入氢氧焰中，通过沉积二氧化硅形成多孔基材， 与所述硅化物进行火焰水解反应，以及加热和烧结所述多孔基材以形成透明玻璃，所述方法包括将在常温下储存或制造的氢气供应给所述一个或多个燃烧器; 使用基于气体的热容量进行测量的测量装置或控制装置控制氢气流量; 蒸发存储在低温储存室中的液态氢，并将蒸发的液体氢气作为备用氢气供给到一个或多个燃烧器; 从氢气切换到备用氢气; 并且当切换时，将氢气流量调节到通过将切换之后的氢气流量乘以预定校正系数而获得的值。