公开(公告)号：US20250019289A1

公开(公告)日：2025-01-16

申请号：US18767122

申请日：2024-07-09

Applicant: CORNING INCORPORATED ,  HOYA CORPORATION

Inventor： Steven Bruce Dawes ,  Douglas Hull Jennings ,  Toshihiko Orihara ,  Pushkar Tandon

IPC: C03B19/06 ,  C03B25/02 ,  C03C3/076

Abstract: A method of forming a glass body, the method including pressing titania-doped silica soot to form a molded body, consolidating the molded body by heating the molded body, annealing the consolidated molded body, and polishing at least one surface of the annealed molded body to form the glass body. After the polishing, the at least one surface of the glass body has a waviness amplitude of about 0.60 nm or less in the spatial frequency range of 0.05 mm−1 or more and 0.2 mm−1 or less.

公开(公告)号：US20210347676A1

公开(公告)日：2021-11-11

申请号：US17308409

申请日：2021-05-05

Applicant: CORNING INCORPORATED

Inventor： Steven Bruce Dawes ,  Pushkar Tandon

IPC: C03B37/027 ,  C03B37/029 ,  C03B37/025

Abstract: A method of processing an optical fiber includes drawing the optical fiber from an optical fiber preform within a draw furnace, the optical fiber extending from the draw furnace along a process pathway, the optical fiber comprising at least one halogen-doped core; and drawing the optical fiber through at least one slow cooling device positioned downstream from the draw furnace at a draw speed. The at least one slow cooling device exposes the optical fiber to a slow cooling device process temperature greater than or equal to 800° C. and less than or equal to 1600° C. The draw speed is such that the optical fiber has a residence time of at least 0.1 s in the at least one slow cooling device. An optical fiber made by such a process is also disclosed.

公开(公告)号：US11111172B2

公开(公告)日：2021-09-07

申请号：US15824241

申请日：2017-11-28

Applicant: Corning Incorporated

Inventor： Steven Bruce Dawes ,  Lisa Ann Hogue ,  Kenneth Edward Hrdina ,  Srinivas Vemury

IPC: C03C3/06 ,  C03B37/018 ,  C03B19/06 ,  C03B37/012

Abstract: A method for forming an optical quality glass is provided. The method includes contacting silica soot particles with a basic additive, forming a silica soot compact, and removing the basic additive from the silica soot compact. A method of forming a cladding portion of an optical fiber preform is also provided.

公开(公告)号：US10464840B2

公开(公告)日：2019-11-05

申请号：US15724825

申请日：2017-10-04

Applicant: Corning Incorporated

Inventor： Sezhian Annamalai ,  Steven Bruce Dawes ,  Carlos Alberto Duran ,  Jesse Kohl

IPC: C03C4/08 ,  C03C3/06 ,  B64C1/14 ,  F41H5/26 ,  C03C3/097 ,  C03C4/10

Abstract: Near-infrared shielding includes a glass material. The shielding provides transmittance at wavelengths between 390 to 700 nm, but near infrared absorbing species are distributed throughout the glass material and the shielding blocks light in the near infrared range. Further, the glass material has a near zero or negative coefficient of thermal expansion, allowing the glass material to heat up when the shielding is blocking a near infrared laser, without expanding much.

公开(公告)号：US20180203184A1

公开(公告)日：2018-07-19

申请号：US15918352

申请日：2018-03-12

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Steven Bruce Dawes ,  Inna lgorevna Kouzmina ,  Ming-Jun Li ,  Manuela Ocampo ,  Pushkar Tandon

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/028 ,  C08F222/10

CPC classification number: G02B6/02395 ,  C08F222/1006 ,  G02B6/02009 ,  G02B6/0281 ,  G02B6/0283 ,  G02B6/0286 ,  G02B6/0365

Abstract: Small-radius coated optical fibers having large mode field diameter and low bending losses. The coated fiber may have an outer radius of 110 μm or less, while providing a mode field diameter of 9.0 μm or greater and a bending loss when wrapped about a 15 mm mandrel of 0.5 dB/km or less at wavelength of 1550 nm. The coated fiber may have a mode field diameter of 9.2 μm or greater and may have a bending loss at 1550 nm of 0.25 dB/km or less when wrapped about a 20 mm mandrel or a bending loss at 1550 nm of 0.02 dB/km or less when wrapped about a 30 mm mandrel.

公开(公告)号：US09995874B2

公开(公告)日：2018-06-12

申请号：US14706302

申请日：2015-05-07

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Steven Bruce Dawes ,  Inna Igorevna Kouzmina ,  Ming-Jun Li ,  Manuela Ocampo ,  Pushkar Tandon

IPC: G02B6/02 ,  G02B6/028 ,  G02B6/036 ,  C08F222/10

CPC classification number: G02B6/02395 ,  C08F222/1006 ,  G02B6/02009 ,  G02B6/0281 ,  G02B6/0283 ,  G02B6/0286 ,  G02B6/0365

Abstract: Small-radius coated optical fibers having large mode field diameter and low bending losses. The coated fiber may have an outer radius of 110 μm or less, while providing a mode field diameter of 9.0 μm or greater and a bending loss when wrapped about a 15 mm mandrel of 0.5 dB/km or less at wavelength of 1550 nm. The coated fiber may have a mode field diameter of 9.2 μm or greater and may have a bending loss at 1550 nm of 0.25 dB/km or less when wrapped about a 20 mm mandrel or a bending loss at 1550 nm of 0.02 dB/km or less when wrapped about a 30 mm mandrel.

公开(公告)号：US20180128971A1

公开(公告)日：2018-05-10

申请号：US15864238

申请日：2018-01-08

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Steven Bruce Dawes ,  Inna lgorevna Kouzmina ,  Ming-Jun Li ,  Manuela Ocampo ,  Pushkar Tandon

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/028 ,  C08F222/10

CPC classification number: G02B6/02395 ,  C08F222/1006 ,  G02B6/02009 ,  G02B6/0281 ,  G02B6/0283 ,  G02B6/0286 ,  G02B6/0365

Abstract: Small-radius coated optical fibers having large mode field diameter and low bending losses. The coated fiber may have an outer radius of 110 μm or less, while providing a mode field diameter of 9.0 μm or greater and a bending loss when wrapped about a 15 mm mandrel of 0.5 dB/km or less at wavelength of 1550 nm. The coated fiber may have a mode field diameter of 9.2 μm or greater and may have a bending loss at 1550 nm of 0.25 dB/km or less when wrapped about a 20 mm mandrel or a bending loss at 1550 nm of 0.02 dB/km or less when wrapped about a 30 mm mandrel.

公开(公告)号：US09932261B2

公开(公告)日：2018-04-03

申请号：US15297534

申请日：2016-10-19

Applicant: Corning Incorporated

Inventor： Sezhian Annamalai ,  Steven Bruce Dawes ,  Carlos Alberto Duran ,  Kenneth Edward Hrdina ,  William Rogers Rosch ,  Bryan Ray Wheaton

IPC: C03C3/06 ,  C03C3/089 ,  C03B25/02 ,  C03C4/00 ,  C03B19/14

CPC classification number: C03C3/089 ,  C03B19/14 ,  C03B25/02 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/10 ,  C03B2201/42 ,  C03C3/06 ,  C03C4/00 ,  C03C23/007 ,  C03C2201/10 ,  C03C2201/12 ,  C03C2201/23 ,  C03C2201/42 ,  C03C2203/54

Abstract: A doped silica-titania (“DST”) glass article that includes a glass article having a glass composition comprising a silica-titania base glass containing titania at 7 to 14 wt. % and a balance of silica, and a dopant selected from the group consisting of (a) F at 0.7 to 1.5 wt. %, (b) B2O3 at 1.5 to 5 wt. %, (c) OH at 1000 to 3000 ppm, and (d) B2O3 at 0.5 to 2.5 wt. % and OH at 100 to 1400 ppm. The glass article has an expansivity slope of less than about 1.3 ppb/K2 at 20° C. For DST glass articles doped with F or B2O3, the OH level can be held to less than 10 ppm, or less than 100 ppm, respectively. In many aspects, the DST glass articles are substantially free of titania in crystalline form.

公开(公告)号：US09782766B2

公开(公告)日：2017-10-10

申请号：US15375843

申请日：2016-12-12

Applicant: Corning Incorporated

Inventor： Erling Richard Anderson ,  Stephen Mitchell Carlton ,  Steven Bruce Dawes ,  John Michael Jewell ,  Roger Alan Rose

IPC: B01J38/10 ,  B01J23/94 ,  B01J23/90 ,  B01J29/90

CPC classification number: B01J38/10 ,  B01J23/94 ,  B01J23/96 ,  B01J38/02

Abstract: Disclosed herein are methods for regenerating metal catalysts used in the purification of inert gases for use in fiber draw furnaces and other applications. The methods described herein can regenerate metal catalysts alone or in combination with molecular sieves. The methods disclosed herein are able to prevent the formation and retention of unwanted byproducts during and after the regeneration process, thereby efficiently converting oxidized catalysts to their reduced or elemental form. Gases purified with catalysts regenerated by the methods disclosed herein, when used in fiber draw furnaces and similar applications, can lead to extended equipment lifetimes and higher-quality products due to the lack of degradation by contaminants in the gas stream.

公开(公告)号：US20160216442A1

公开(公告)日：2016-07-28

申请号：US14706302

申请日：2015-05-07

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Steven Bruce Dawes ,  Inna Igorevna Kouzmina ,  Ming-Jun Li ,  Manuela Ocampo ,  Pushkar Tandon

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

CPC classification number: G02B6/02395 ,  C08F222/1006 ,  G02B6/02009 ,  G02B6/0281 ,  G02B6/0283 ,  G02B6/0286 ,  G02B6/0365

Abstract: Small-radius coated optical fibers having large mode field diameter and low bending losses. The coated fiber may have an outer radius of 110 μm or less, while providing a mode field diameter of 9.0 μm or greater and a bending loss when wrapped about a 15 mm mandrel of 0.5 dB/km or less at wavelength of 1550 nm. The coated fiber may have a mode field diameter of 9.2 μm or greater and may have a bending loss at 1550 nm of 0.25 dB/km or less when wrapped about a 20 mm mandrel or a bending loss at 1550 nm of 0.02 dB/km or less when wrapped about a 30 mm mandrel.

Abstract translation: 具有大模场直径和低弯曲损耗的小半径涂覆光纤。 涂覆的光纤可以具有110μm或更小的外半径，同时提供9.0μm或更大的模场直径和在1550nm波长下缠绕在0.5dB / km或更小的15mm心轴周围时的弯曲损耗。 涂覆的光纤可以具有9.2μm或更大的模场直径，并且当缠绕在20mm心轴上时在1550nm处的弯曲损耗为0.25dB / km或更小，或者在1550nm处的弯曲损耗为0.02dB / km或 当缠绕在30毫米心轴上时较少。