公开(公告)号：US09733426B2

公开(公告)日：2017-08-15

申请号：US14944798

申请日：2015-11-18

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Kazuhiro Yonezawa ,  Tadashi Enomoto

IPC: G02B6/02 ,  G02B6/028 ,  G02B6/036 ,  C03C13/04

CPC classification number: G02B6/0288 ,  C03C13/045 ,  C03C2201/10 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/28 ,  C03C2201/31 ,  G02B6/02214 ,  G02B6/03627 ,  G02B6/0365

Abstract: The present invention relates to an MMF with a structure for relaxing wavelength dependence of transmission bandwidth. In the MMF, a doping amount of a dopant for control of refractive index is adjusted, so as to make each of an OFL bandwidth at a wavelength of 850 nm and an OFL bandwidth at a wavelength of at least one of 980 nm, 1060 nm, and 1300 nm become not less than 1500 MHz·km, make the OFL bandwidth at the wavelength of at least one of 980 nm, 1060 nm, and 1300 nm become wider than the OFL bandwidth at the wavelength of 850 nm, and effectively suppress increase in transmission loss.

公开(公告)号：US20170219770A1

公开(公告)日：2017-08-03

申请号：US15485619

申请日：2017-04-12

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Ming-Jun Li ,  Hazel Benton Matthews, III ,  Pushkar Tandon

IPC: G02B6/036 ,  C03C3/06 ,  C03C13/04 ,  G02B6/02 ,  C03B37/027

CPC classification number: G02B6/03627 ,  C03B37/02 ,  C03B37/027 ,  C03B37/02718 ,  C03B37/02727 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/31 ,  C03B2203/223 ,  C03B2203/23 ,  C03B2203/24 ,  C03B2205/55 ,  C03B2205/56 ,  C03C3/06 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/12 ,  C03C2201/31 ,  C03C2213/00 ,  G02B6/02014

Abstract: A single mode optical fiber having a core made from silica and less than or equal to about 6.5 weight % germania and having a maximum relative refractive index Δ1MAX. The optical fiber also has an inner cladding surrounding the core and having a minimum relative refractive index Δ2MIN. A difference between a softening point of the core and a softening point of the inner cladding is less than or equal to about 20° C., and Δ1MAX>Δ2MIN. The single mode optical fiber may also have an outer cladding surrounding the inner cladding made from silica or SiON. The outer cladding has a maximum relative refractive index Δ3MAX, and Δ3MAX>Δ2MIN. A method for manufacturing an optical fiber includes providing a preform to a first furnace, the preform, drawing the optical fiber from the preform, and cooling the drawn optical fiber in a second furnace.

公开(公告)号：US20170217814A2

公开(公告)日：2017-08-03

申请号：US15035776

申请日：2014-11-06

Applicant: Stefan OCHS ,  Klaus BECKER

Inventor： Stefan OCHS ,  Klaus BECKER

IPC: C03B19/14 ,  C03C4/00 ,  G03F1/24 ,  C03C3/06

CPC classification number: C03B19/1461 ,  C03B19/066 ,  C03B19/106 ,  C03B19/1095 ,  C03B19/14 ,  C03B2201/12 ,  C03B2201/42 ,  C03C3/06 ,  C03C4/0085 ,  C03C2201/12 ,  C03C2201/42 ,  C03C2203/40 ,  C03C2203/54 ,  C03C2204/00 ,  G03F1/24

Abstract: A method for producing a blank from titanium-doped, highly silicic-acidic glass having a specified fluorine content for use in EUV lithography is described, in which the thermal expansion coefficient over the operating temperature remains at zero as stably as possible. The course of the thermal expansion coefficient of Ti-doped silica glass depends on a plurality of influencing factors. In addition to the absolute titanium content, the distribution of the titanium is of significant importance, as is the ratio and distribution of additional doping elements, such as fluorine. In the method, fluorine-doped TiO2—SiO2 soot particles are generated and processed further via consolidation and vitrifying into the blank, and, by flame hydrolysis of input substances containing silicon and titanium, TiO2—SiO2-soot particles are formed, exposed to a reagent containing fluorine in a moving powder bed, and converted to the fluorine-doped TiO2—SiO2-soot particles.

公开(公告)号：US20170160465A1

公开(公告)日：2017-06-08

申请号：US15435679

申请日：2017-02-17

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Ming-Jun LI ,  Hazel Benton Matthews, III ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

IPC: G02B6/02 ,  C03B37/018 ,  C03C3/06 ,  G02B6/036 ,  C03C13/04

CPC classification number: G02B6/02019 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/018 ,  C03B37/01846 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2207/32 ,  C03C3/06 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2213/00 ,  G02B6/02009 ,  G02B6/02238 ,  G02B6/02395 ,  G02B6/03627 ,  G02B6/0365

Abstract: An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F.

公开(公告)号：US20170108642A1

公开(公告)日：2017-04-20

申请号：US15290105

申请日：2016-10-11

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Yoshiaki TAMURA ,  Tetsuya HARUNA ,  Masaaki HIRANO ,  Hirotaka SAKUMA

IPC: G02B6/036 ,  C03C13/04

CPC classification number: G02B6/03694 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/50 ,  C03C2201/54 ,  C03C2213/00 ,  G02B6/03611

Abstract: An optical fiber having a reduced attenuation includes a silica glass core and a silica glass cladding. The silica glass core has substantially no germanium and includes a first core and a second core. The second core encloses the first core, the refractive index of the second core is larger than the refractive index of the first core, and the average value of halogen concentration of the second core is 5000 ppm or more. The silica glass cladding surrounds the second core and contains substantially no gemianium. The refractive index of the cladding is smaller than the refractive index of the first core.

公开(公告)号：US20170097465A1

公开(公告)日：2017-04-06

申请号：US15188323

申请日：2016-06-21

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Ming-Jun Li ,  Hazel Benton Matthews, III ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

IPC: G02B6/036 ,  C03B37/018 ,  C03C13/04 ,  G02B6/02

CPC classification number: G02B6/02019 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/018 ,  C03B37/01846 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2207/32 ,  C03C3/06 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2213/00 ,  G02B6/02009 ,  G02B6/02238 ,  G02B6/02395 ,  G02B6/03627 ,  G02B6/0365

Abstract: An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F.

公开(公告)号：US20160168010A1

公开(公告)日：2016-06-16

申请号：US14958024

申请日：2015-12-03

Applicant: Corning Incorporated

Inventor： Sezhian Annamalai ,  Carlos Alberto Duran ,  Kenneth Edward Hrdina

IPC: C03C3/06 ,  C03B25/02 ,  C03B19/14 ,  C03C3/112 ,  C03C4/00

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B19/1461 ,  C03B25/02 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/23 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2201/50 ,  C03B2201/54 ,  C03C3/112 ,  C03C4/00 ,  C03C2201/12 ,  C03C2201/14 ,  C03C2201/32 ,  C03C2201/40 ,  C03C2201/42 ,  C03C2201/50 ,  C03C2201/54 ,  C03C2203/52

Abstract: A doped silica-titania glass article is provided that includes a glass article having a glass composition comprising (i) a silica-titania base glass, (ii) a fluorine dopant, and (iii) a second dopant. The fluorine dopant has a concentration of fluorine of up to 5 wt. % and the second dopant comprises one or more oxides selected from the group consisting of Al, Nb, Ta, B, Na, K, Mg, Ca and Li oxides at a total oxide concentration from 50 ppm to 6 wt. %. Further, the glass article has an expansivity slope of less than 0.5 ppb/K2 at 20° C. The second dopant can be optional. The composition of the glass article may also contain an OH concentration of less than 100 ppm.

Abstract translation: 提供掺杂二氧化硅 - 二氧化钛玻璃制品，其包括具有玻璃组合物的玻璃制品，所述玻璃组合物包含（i）二氧化硅 - 二氧化钛基底玻璃，（ii）氟掺杂剂和（iii）第二掺杂剂。 氟掺杂剂的氟浓度高达5wt。 ％，第二掺杂剂包含一种或多种选自Al，Nb，Ta，B，Na，K，Mg，Ca和Li氧化物的氧化物，其总氧化物浓度为50ppm至6wt。 ％。 此外，玻璃制品在20℃下具有小于0.5ppb / K 2的膨胀斜率。第二掺杂剂可以是任选的。 玻璃制品的组成也可以含有小于100ppm的OH浓度。

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

公开(公告)号：US20160145147A1

公开(公告)日：2016-05-26

申请号：US14950374

申请日：2015-11-24

Applicant: CORNING INCORPORATED

Inventor： Sezhian Annamalai ,  Carlos Alberto Duran ,  Kenneth Edward Hrdina ,  Lisa Anne Moore

IPC: C03C3/112 ,  C03C3/076 ,  C03B19/02 ,  G03F1/22 ,  C03B25/02 ,  C03C3/06 ,  C03C3/089

CPC classification number: C03C3/112 ,  C03B5/225 ,  C03B19/02 ,  C03B25/00 ,  C03B25/02 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/42 ,  C03C3/06 ,  C03C3/089 ,  C03C3/115 ,  C03C21/007 ,  C03C23/007 ,  C03C2201/10 ,  C03C2201/12 ,  C03C2201/14 ,  C03C2201/23 ,  C03C2201/30 ,  C03C2201/42 ,  C03C2203/10 ,  C03C2203/54 ,  G03F1/22

Abstract: A method of forming a doped silica-titania glass is provided. The method includes blending batch materials comprising silica, titania, and at least one dopant. The method also includes heating the batch materials to form a glass melt. The method further includes consolidating the glass melt to form a glass article, and annealing the glass article.

Abstract translation: 提供了形成掺杂二氧化硅 - 二氧化钛玻璃的方法。 该方法包括混合包含二氧化硅，二氧化钛和至少一种掺杂剂的批料。 该方法还包括加热批料以形成玻璃熔体。 该方法还包括固化玻璃熔体以形成玻璃制品，并对玻璃制品进行退火。

公开(公告)号：US20160109651A1

公开(公告)日：2016-04-21

申请号：US14825297

申请日：2015-08-13

Applicant: OFS Fitel, LLC

Inventor： Peter I. Borel ,  Rasmus V.S. Jensen ,  Ole A. Levring ,  Jorgen Ostgaard Olsen ,  David W. Peckham ,  Dennis J. Trevor ,  Patrick W. Wisk ,  Man F. Yan

IPC: G02B6/036 ,  C03B37/027

CPC classification number: G02B6/0365 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/01853 ,  C03B37/01861 ,  C03B37/01869 ,  C03B37/01892 ,  C03B37/027 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/22 ,  C03B2203/222 ,  C03B2203/223 ,  C03B2205/40 ,  C03B2205/42 ,  C03C13/045 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2203/44 ,  C03C2203/46 ,  G02B6/02019 ,  G02B6/03683 ,  G02B6/03694 ,  Y02P40/57

Abstract: The core region of an optical fiber is doped with chlorine in a concentration that allows for the viscosity of the core region to be lowered, approaching the viscosity of the surrounding cladding. An annular interface region is disposed between the core and cladding and contains a concentration of fluorine dopant sufficient to match the viscosity of the core. By including this annular stress accommodation region, the cladding layer can be formed to include the relatively high concentration of fluorine required to provide the desired degree of optical signal confinement (Le., forming a “low loss” optical fiber).

Abstract translation: 光纤的核心区域掺杂有氯，其浓度允许芯区的粘度降低，接近周围包层的粘度。 在芯和包层之间设置环形界面区域，并且包含足以匹配芯的粘度的氟掺杂剂的浓度。 通过包括这种环形应力容纳区域，可以形成包层，以包括提供期望程度的光信号限制所需的相对高浓度的氟（形成“低损耗”光纤）。