公开(公告)号：US20170192169A1

公开(公告)日：2017-07-06

申请号：US15467264

申请日：2017-03-23

Applicant: Fujikura Ltd.

Inventor： Takayuki Kitamura ,  Sho Endo ,  Tatsuya Kishi ,  Ryo Maruyama

IPC: G02B6/036 ,  G02B6/02

CPC classification number: G02B6/03627 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/22 ,  C03B2203/23 ,  G02B6/02004 ,  G02B6/0365

Abstract: An optical fiber including a core and a cladding including an inner cladding layer and an outer cladding layer is provided. The refractive index of the core Δ1, the refractive index of the inner cladding layer Δ2, and the refractive index of the outer cladding layer Δ3 have a relationship denoted by the following expressions: Δ1max>Δ2min and Δ1max>Δ3, and 0.01%

公开(公告)号：US20170101335A1

公开(公告)日：2017-04-13

申请号：US15271610

申请日：2016-09-21

Applicant: Corning Incorporated

Inventor： Paul Andrew Chludzinski ,  Dominick Fiordimalva

IPC: C03B37/012

CPC classification number: C03B37/01222 ,  C03B37/01211 ,  C03B37/01248 ,  C03B37/027 ,  C03B2201/02 ,  C03B2201/06 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/224 ,  C03B2203/225 ,  C03B2203/23 ,  C03B2203/34 ,  Y02P40/57

Abstract: The present disclosure provides optical fiber preforms formed from core canes having large core-clad ratio, intermediate core-cladding assemblies, and methods for making the preforms and core cladding assemblies. The preforms are made with capped core canes. The capping material has a coefficient of thermal expansion less than the coefficient of thermal expansion of the core cane and more closely matched to or lower than the coefficient of thermal expansion of the surrounding cladding monolith in a cane-in-soot process. Presence of the cap reduces stresses that arise from differential thermal expansion of the core cane and cladding materials and leads to preforms having low defect concentration and low probability of failure during subsequent thermal processing steps.

公开(公告)号：US09527764B2

公开(公告)日：2016-12-27

申请号：US14280691

申请日：2014-05-19

Applicant: Shin-Etsu Chemical Co., Ltd.

Inventor： Dai Inoue ,  Takaaki Nagao ,  Hiroyuki Koide

IPC: C03B37/014

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。

公开(公告)号：US20160229730A1

公开(公告)日：2016-08-11

申请号：US15029322

申请日：2014-10-14

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： David C. Jarmon

IPC: C03B19/02

CPC classification number: C03B19/025 ,  B28B1/24 ,  B28B3/025 ,  C03B19/02 ,  C03B2201/02 ,  C03B2201/10

Abstract: One exemplary embodiment of this disclosure relates to a transfer molding assembly. The assembly includes a die having a molding cavity interconnected with a reservoir. The assembly further includes a heater operable to heat the die, and a load plate configured to move under its own weight to transfer material from the reservoir into the molding cavity.

Abstract translation: 本公开的一个示例性实施例涉及传递模制组件。 组件包括具有与储存器互连的模腔的模具。 组件还包括可操作以加热模具的加热器和构造成在其自重下移动以将材料从储存器转移到模制腔中的负载板。

公开(公告)号：US09279935B2

公开(公告)日：2016-03-08

申请号：US13995310

申请日：2010-12-23

Applicant: Silvio Frigerio ,  Ricardo Antunes De Camargo ,  Lidia Terruzzi

Inventor： Silvio Frigerio ,  Ricardo Antunes De Camargo ,  Lidia Terruzzi

IPC: C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  G02B6/036

CPC classification number: G02B6/036 ,  C03B37/01211 ,  C03B37/01248 ,  C03B37/01257 ,  C03B37/01446 ,  C03B37/01807 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/24 ,  G02B6/03666

Abstract: A single-mode transmission optical fiber includes a central core region radially outwardly from a centerline to a radius r1 and having a positive relative refractive index Δ1; a first inner cladding region extending radially outwardly from the central core to a radius r2 and having a negative relative refractive index Δ2; a second inner cladding region extending radially outwardly from the first inner cladding region to a radius r3 and having a non-negative relative refractive index Δ3; an intermediate cladding region extending radially outwardly from the second inner cladding region to a radius r4 having a negative relative refractive index Δ4 larger in absolute value than the relative refractive index Δ2; and an outer cladding region extending radially outwardly from the intermediate cladding region and having a non-negative relative refractive index Δ5; wherein the relative refractive index Δ2 of the first inner cladding region is −0.1·10−3 to −1.0·10−3 and the relative refractive index Δ4 of the intermediate cladding is −3.0·10−3 to −5.0·10−3.

Abstract translation: 单模传输光纤包括从中心线径向向外到半径r 1并具有正相对折射率＆amp; Dgr; 1的中心芯区域; 从中心芯径向向外延伸到半径r2并且具有负相对折射率＆lt; Dgr; 2的第一内包层区域; 3，从第一内包层区径向向外延伸至半径r3并具有非负相对折射率Dgr; 3的第二内包层区; 从第二内包层区域径向向外延伸到具有相对于相对折射率＆Dgr; 2的绝对值大的负相对折射率＆lt; Dgr; 4的半径r4的中间包层区域; 以及从中间包层区域径向向外延伸且具有非负相对折射率＆lt; Dgr; 5的外包层区域; 其中所述第一内包层区域的相对折射率＆Dgr; 2为-0.1×10 -3至-1.0×10 -3，并且所述中间包层的相对折射率＆Dgr; 4为-3.0×10-3至-5.0 ·10-3。

公开(公告)号：US09266765B2

公开(公告)日：2016-02-23

申请号：US14348260

申请日：2012-09-28

Applicant: Commissariat a l'energie atomique et aux ene alt

Inventor： Tarek Fathallah ,  Gilles Marchand

IPC: B29C47/76 ,  C03B19/12 ,  C03B37/016 ,  C03C1/00 ,  C04B35/624 ,  C04B35/14 ,  C04B35/16 ,  B28B11/12 ,  B28B1/24 ,  B28B7/34

CPC classification number: C03B19/12 ,  B28B1/24 ,  B28B7/344 ,  B28B7/346 ,  B28B7/348 ,  B28B11/12 ,  C03B37/016 ,  C03B2201/02 ,  C03B2201/42 ,  C03C1/006 ,  C03C2203/26 ,  C04B35/14 ,  C04B35/16 ,  C04B35/624 ,  C04B2235/3232 ,  C04B2235/441 ,  C04B2235/6027 ,  C04B2235/606

Abstract: A process for manufacturing an object made of a constituent material obtained from a sol-gel solution, the process including, successively: a) introducing the sol-gel solution into a mold of the object to be manufactured; b) gelling the sol-gel solution; c) drying the gel obtained in b) in the mold, by which the gel is converted into the constituent material of the object, wherein the mold includes a closed chamber and includes a material configured to allow evacuation of gases formed during b) and/or c).

Abstract translation: 一种制造由溶胶 - 凝胶溶液获得的构成材料制成的物体的方法，该方法包括：a）将溶胶 - 凝胶溶液引入待制造物体的模具中; b）凝胶溶胶凝胶溶液; c）将模具中b）中获得的凝胶干燥，通过该凝胶将凝胶转化成物体的构成材料，其中模具包括封闭室，并且包括被配置为允许排空在b）和/ 或c）。

公开(公告)号：US20150301278A1

公开(公告)日：2015-10-22

申请号：US14687215

申请日：2015-04-15

Applicant: j-plasma GmbH

Inventor： Ralitsa Rosenow ,  Roland Heinze ,  Jörg Kötzing ,  Robert Hanf ,  Lothar Brehm

IPC: G02B6/036

CPC classification number: C03B37/01211 ,  C03B37/0253 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2203/12 ,  C03B2203/23 ,  C03B2205/40 ,  C03B2205/42 ,  C03B2205/56 ,  C03B2205/72

Abstract: Preform for an optical waveguide containing a core with a non-circular geometry and at least one cladding layer, in which the dopand concentration of the cladding layer is increased compared to the dopand concentration of a preform with circular core geometry and identical NA. A method for the production of a preform for an optical fiber is provided. An optical waveguide with a nominal dopand concentration of c(eff) x F≦c(nom) in at least one cladding layer is also provided.

Abstract translation: 包含具有非圆形几何形状的芯和至少一个包覆层的光波导的预成型件，其中与具有圆形芯几何形状和相同NA的预制棒的掺杂浓度相比，包层的掺杂浓度增加。 提供了一种用于制造光纤预制棒的方法。 还提供了在至少一个包覆层中具有标称掺杂浓度为c（eff）×F＆nlE; c（nom）的光波导。

公开(公告)号：US08712202B2

公开(公告)日：2014-04-29

申请号：US12892752

申请日：2010-09-28

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

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

IPC: G02B6/04

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方法的不同环境中进行烟灰沉积工艺来实现必需的氟浓度。 掺入包层的氟的浓度使得能够获得限制纤维的单模以抵抗弯曲诱导的衰减的数值孔径。 纤维尺寸进一步提高了纤维的弯曲能力。

公开(公告)号：US20140056596A1

公开(公告)日：2014-02-27

申请号：US14111028

申请日：2012-10-25

Applicant: Sumitomo Electric Indutries, Ltd.

Inventor： Tetsuya Nakanishi ,  Tatsuya Konishi ,  Kazuya Kuwahara

IPC: G02B6/02

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，并且基于光学包层具有大于或等于0.35％且小于或等于0.50％的折射率体积v大于或等于0.045mum2以下的折射率差Δttacore 大于或等于0.095mum2。 护套的相对折射率差ΔJ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：US08265439B2

公开(公告)日：2012-09-11

申请号：US12758405

申请日：2010-04-12

Applicant: Cedric Gonnet ,  Elise Regnier ,  Frans Gooijer ,  Pascale Nouchi

Inventor： Cedric Gonnet ,  Elise Regnier ,  Frans Gooijer ,  Pascale Nouchi

IPC: G02B6/02

CPC classification number: C03B37/01291 ,  C03B37/01892 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/24 ,  C03C13/045 ,  C03C13/046 ,  C03C17/3417 ,  G02B6/03627 ,  G02B6/0365

Abstract: An optical fiber preform comprises a primary preform that includes at least one inner cladding and a central core deposited inside a fluorine doped silica tube. The fluorine doped silica tube has a cross section area that is no more than about 15 percent smaller than the cross section area of the primary preform. The optical fiber preform has a large capacity, may be manufactured at reduced cost, and may be drawn to produce an optical fiber having reduced transmission losses.

Abstract translation: 光纤预制件包括初级预制件，其包括至少一个内包层和沉积在掺氟二氧化硅管内的中心芯。 氟掺杂二氧化硅管的截面积小于初级预制件的截面面积的不超过约15％。 光纤预制棒具有大的容量，可以以低成本制造，并且可以被拉制以产生具有降低的传输损耗的光纤。