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公开(公告)号：US11584679B2
公开(公告)日：2023-02-21
申请号：US17114982
申请日：2020-12-08
Applicant: CORNING INCORPORATED
Inventor： Arash Abedijaberi , Elena Alekseevna Chizhova-Notkina , Steven Bruce Dawes , Nikolay Anatolyevich Panin
IPC: C03B37/027 , C03B37/029
Abstract: Apparatuses and methods for processing an optical fiber preform are disclosed. According to one aspect, an apparatus may generally include a muffle defining an interior volume enclosed by at least one sidewall and a handle assembly for supporting the optical fiber preform in the muffle. The handle assembly may be removably coupled to the muffle and extend into the interior volume. At least one baffle may be positioned in the interior volume and define an upper portion of the interior volume and a lower portion of the interior volume. The at least one baffle may define at least one flow channel between the upper portion of the interior volume and the lower portion of the interior volume.
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公开(公告)号：US11198635B2
公开(公告)日：2021-12-14
申请号：US16529123
申请日：2019-08-01
Applicant: CORNING INCORPORATED
Inventor： Dana Craig Bookbinder , Steven Bruce Dawes , Richard Michael Fiacco , Brian Lee Harper , Pushkar Tandon
IPC: C03C3/06 , C03B37/014
Abstract: Preparation of halogen-doped silica is described. The preparation includes doping silica with high halogen concentration and sintering halogen-doped silica to a closed-pore state in a gas-phase environment that has a low partial pressure of impermeable gases. Impermeable gases are difficult to remove from halogen-doped fiber preforms and lead to defects in optical fibers drawn from the preforms. A low partial pressure of impermeable gases in the sintering environment leads to a low concentration of impermeable gases and a low density of gas-phase voids in densified halogen-doped silica. Preforms with fewer defects result.
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公开(公告)号：US10947149B2
公开(公告)日：2021-03-16
申请号：US16167830
申请日：2018-10-23
Applicant: Corning Incorporated
Inventor： Dana Craig Bookbinder , Steven Bruce Dawes , Richard Michael Fiacco , Brian Lee Harper , Ming-Jun Li , Pushkar Tandon
IPC: C03B37/014 , C03B19/14 , C03C13/04 , C03C3/06 , G02B6/02 , C03B37/018
Abstract: Preparation of halogen-doped silica is described. The preparation includes doping silica with high halogen concentration and sintering halogen-doped silica to a closed-pore state. The sintering includes a high pressure sintering treatment and a low pressure sintering treatment. The high pressure sintering treatment is conducted in the presence of a high partial pressure of a gas-phase halogen doping precursor and densifies a silica soot body to a partially consolidated state. The low pressure sintering treatment is conducted in the presence of a low partial pressure of gas-phase halogen doping precursor and transforms a partially consolidated silica body to a closed-pore state. The product halogen-doped silica glass exhibits little foaming when heated to form fibers in a draw process or core canes in a redraw process.
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公开(公告)号：US20190154911A1
公开(公告)日：2019-05-23
申请号：US16193819
申请日：2018-11-16
Applicant: Corning Incorporated
Inventor： Dana Craig Bookbinder , Steven Bruce Dawes , Ming-Jun Li , Pushkar Tandon
CPC classification number: G02B6/0281 , C03B37/01446 , C03B37/01453 , C03B2201/12 , C03B2201/20 , C03B2201/24 , C03B2203/24 , C03B2203/26 , C03C3/06 , C03C13/045 , C03C2201/08 , C03C2201/11 , C03C2201/12 , G02B6/03627
Abstract: A co-doped optical fiber is provided having an attenuation of less than about 0.17 dB/km at a wavelength of 1550 nm. The fiber includes a core in the fiber having a graded refractive index profile with an alpha of greater than 5. The fiber also includes a cladding in the fiber that surrounds the core addition, the core includes silica that is co-doped with two or more halogens.
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公开(公告)号：US20180273419A1
公开(公告)日：2018-09-27
申请号：US15724825
申请日：2017-10-04
Applicant: Corning Incorporated
Inventor： Sezhian Annamalai , Steven Bruce Dawes , Carlos Alberto Duran , Jesse Kohl
CPC classification number: C03C4/082 , B64C1/1492 , B64D45/00 , C03C3/06 , C03C3/097 , C03C4/10 , C03C2201/40 , C03C2201/42 , C03C2203/20 , F41H5/263
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.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20180148366A1
公开(公告)日：2018-05-31
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
CPC classification number: C03C3/06 , C03B19/066 , C03B37/01282 , C03B37/018 , Y02P40/57
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.
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公开(公告)号：US20170362115A1
公开(公告)日：2017-12-21
申请号：US15529583
申请日：2015-11-24
Applicant: Corning Incorporated
Inventor： Steven Bruce Dawes , Douglas Hull Jennings , Pushkar Tandon
IPC: C03C3/06 , C03B37/014 , C03B25/02 , C03B19/14 , C03B37/012 , G02B6/036 , C03B37/018
CPC classification number: C03C3/06 , C03B19/066 , C03B19/1453 , C03B19/1461 , C03B25/02 , C03B37/01282 , C03B37/014 , C03B37/01446 , C03B37/01453 , C03B37/01853 , C03B2201/075 , C03B2201/12 , C03B2201/20 , C03B2201/42 , G02B6/036
Abstract: A method of forming an optical element is provided. The method includes producing silica-based soot particles using chemical vapor deposition, the silica-based soot particles having an average particle size of between about 0.05 μm and about 0.25 μm. The method also includes forming a soot compact from the silica-based soot particles and doping the soot compact with a halogen in a closed system by contacting the silica-based soot compact with a halogencontaining gas in the closed system at a temperature of less than about 1200° C.
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公开(公告)号：US20170173575A1
公开(公告)日：2017-06-22
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
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.
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公开(公告)号：US09057817B2
公开(公告)日：2015-06-16
申请号：US13862755
申请日：2013-04-15
Applicant: CORNING INCORPORATED
Inventor： Dana Craig Bookbinder , Steven Bruce Dawes , Inna Igorevna Kouzmina , Ming-Jun Li , Manuela Ocampo , Pushkar Tandon
IPC: G02B6/028 , G02B6/02 , 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.
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。
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公开(公告)号：US20140308015A1
公开(公告)日：2014-10-16
申请号：US13862755
申请日：2013-04-15
Applicant: CORNING INCORPORATED
Inventor： Dana Craig Bookbinder , Steven Bruce Dawes , Inna Igorevna Kouzmina , Ming-Jun Li , Manuela Ocampo , Pushkar Tandon
IPC: G02B6/028
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。
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