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公开(公告)号：US12162792B2
公开(公告)日：2024-12-10
申请号：US18099719
申请日：2023-01-20
Applicant: CORNING INCORPORATED
Inventor： Bruce Warren Reding , Pushkar Tandon
IPC: C03B37/027
Abstract: A system for processing an optical fiber includes: a draw furnace, the draw furnace containing an optical fiber preform; a bare optical fiber drawn from the optical fiber preform, the bare optical fiber extending from the draw furnace along a process pathway; and a slow cooling device operatively coupled to and downstream from the draw furnace, the slow cooling device exposing the bare optical fiber to a slow cooling device process temperature in the range from 1000° C. to 1400° C., wherein the bare optical fiber passes through the slow cooling device at least two times.
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公开(公告)号：US20210340052A1
公开(公告)日：2021-11-04
申请号：US17376284
申请日：2021-07-15
Applicant: CORNING INCORPORATED
Inventor： Yacob Mesfin Argaw , Nikolaos Pantelis Kladias , Robert Clark Moore , Bruce Warren Reding , Chunfeng Zhou
IPC: C03B37/027
Abstract: A method of processing an optical fiber includes drawing the optical fiber from a heated glass source, reheating the optical fiber, and cooling the optical fiber under vacuum at a cooling rate less than the cooling rate of the optical fiber in air at 25° C. and 1 atm. Cooling the optical fiber under vacuum is conducted after reheating the optical fiber. Cooling the optical fiber under vacuum reduces the rate of heat transfer from the optical fiber, which may enable further relaxation of the glass and reduction in the fictive temperature of the optical fiber. A system for processing an optical fiber includes a furnace containing a fiber preform, a first positioner, a reheating device, and a treatment device downstream of the reheating device, the treatment device operable to cool the optical fiber under vacuum to reduce the rate of heat transfer from the optical fiber.
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公开(公告)号：US20180111871A1
公开(公告)日：2018-04-26
申请号：US15787956
申请日：2017-10-19
Applicant: Corning Incorporated
Inventor： John Michael Jewell , Nikolaos Pantelis Kladias , Robert Walter Nason , Bruce Warren Reding , Edward Barry Richter , Daniel Paul Veber , Chunfeng Zhou
IPC: C03B37/029 , C03B37/025
Abstract: An optical fiber production system is provided which includes a slow-cooling device and a purge device positioned above the slow-cooling device. The purge device includes a tube defining an inlet. An optical fiber extends through the slow-cooling device and the purge device. The purge device is configured to inject a purge gas through the inlet and against the optical fiber.
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公开(公告)号：US20190256400A1
公开(公告)日：2019-08-22
申请号：US16400617
申请日：2019-05-01
Applicant: Corning Incorporated
Inventor： Dana Craig Bookbinder , Ming-Jun Li , Bruce Warren Reding , Pushkar Tandon
IPC: C03B37/035 , C03B37/03 , C03B37/025 , C03B37/027
Abstract: An optical fiber with low attenuation is provided. The fiber is produced under conditions that reduce fictive temperature. Processing includes maintaining the fiber at temperatures at or near the glass transition temperature (Tg) for an extended period of time. For silica-based fibers, the preferred temperatures are temperatures between 1000° C. and 1700° C. The extended residence times are achieved in a continuous fiber manufacturing process by increasing the path length of the fiber through a processing region maintained at temperatures between 1000° C. and 1700° C. The increased path length is achieved by including one or more fluid bearing devices in the processing region. The extended residence time in the processing region allows the structure of the glass fiber to relax more completely and to more closely approach the equilibrium state. The more relaxed glass structure leads to a lower fictive temperature and provides fibers with lower attenuation.
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公开(公告)号：US20160168008A1
公开(公告)日：2016-06-16
申请号：US14945848
申请日：2015-11-19
Applicant: Corning Incorporated
Inventor： Dana Craig Bookbinder , Ming-Jun Li , Bruce Warren Reding , Pushkar Tandon
IPC: C03B37/035 , C03B37/025 , C03B37/03
CPC classification number: C03B37/035 , C03B37/025 , C03B37/02727 , C03B37/032 , C03B2205/42 , C03B2205/56
Abstract: An optical fiber with low attenuation is provided. The fiber is produced under conditions that reduce fictive temperature. Processing includes maintaining the fiber at temperatures at or near the glass transition temperature (Tg) for an extended period of time. For silica-based fibers, the preferred temperatures are temperatures between 1000° C. and 1700° C. The extended residence times are achieved in a continuous fiber manufacturing process by increasing the path length of the fiber through a processing region maintained at temperatures between 1000° C. and 1700° C. The increased path length is achieved by including one or more fluid bearing devices in the processing region. The extended residence time in the processing region allows the structure of the glass fiber to relax more completely and to more closely approach the equilibrium state. The more relaxed glass structure leads to a lower fictive temperature and provides fibers with lower attenuation.
Abstract translation: 提供具有低衰减的光纤。 纤维在降低假想温度的条件下生产。 处理包括将纤维保持在玻璃化转变温度（Tg）或接近玻璃化转变温度（Tg）的温度下延长一段时间。 对于二氧化硅基纤维，优选的温度是在1000℃和1700℃之间的温度。延长的停留时间是在连续纤维制造过程中实现的，通过增加纤维的路径长度通过保持在1000℃ ℃和1700℃。通过在处理区域中包括一个或多个流体承载装置来实现增加的路径长度。 在处理区域中延长的停留时间允许玻璃纤维的结构更完全地松弛并更接近平衡状态。 更轻松的玻璃结构导致较低的假想温度，并提供较低衰减的光纤。
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Patent Agency Ranking
6.发明申请公开(公告)号：US20150323434A1
公开(公告)日：2015-11-12
申请号：US14696890
申请日：2015-04-27
Applicant: Corning Incorporated
Inventor： Kirk Patton Bumgarner , Aditya Kaimal , Michael Terry Murphy , Bruce Warren Reding
CPC classification number: G01M11/088 , C03B37/03 , C03B37/032 , G01M11/30 , G01N3/08 , Y02P40/57
Abstract: In one embodiment, an apparatus for screen testing an optical fiber includes a fiber conveyance pathway, a capstan having an outer circumference and a fiber contact region extending around the outer circumference, the fiber contact region having a durometer hardness of less than or equal to about 40 Shore A, where the capstan is positioned adjacent to the fiber conveyance pathway such that when the optical fiber is directed over the fiber conveyance pathway, the optical fiber engages with the fiber contact region, and a pinch belt positioned adjacent to the fiber conveyance pathway such that the fiber conveyance pathway extends between the pinch belt and the fiber contact region, where the pinch belt is engagable with the fiber contact region such that, when the optical fiber is directed over the fiber conveyance pathway, the optical fiber is impinged between the pinch belt and the fiber contact region.
Abstract translation: 在一个实施例中，用于屏幕测试光纤的装置包括光纤传送路径，具有外周的绞盘和围绕外圆周延伸的纤维接触区域，所述纤维接触区域的硬度计硬度小于或等于约 40肖氏A，其中绞盘位于纤维传送路径附近，使得当光纤被引导到纤维传送路径上时，光纤与纤维接触区域接合，并且位于邻近纤维传送路径的夹带 使得纤维传送路径在夹持带和纤维接触区域之间延伸，其中夹持带可与纤维接触区域接合，使得当光纤被引导到纤维传送路径上时，光纤撞击在 夹带和纤维接触区域。
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公开(公告)号：US20250026675A1
公开(公告)日：2025-01-23
申请号：US18769986
申请日：2024-07-11
Applicant: CORNING INCORPORATED
Inventor： Nikolaos Pantelis Kladias , Ming-Jun Li , Bruce Warren Reding , Pushkar Tandon , Kevin Lee Wasson
IPC: C03B37/029
Abstract: A method of forming an optical fiber, the method including heating a forming region of the optical fiber preform within a pressure device while exposing the forming region to a total pressure of about 500 atm or greater, directing the optical fiber preform in a downstream direction along a process pathway to form the optical fiber, and traversing the optical fiber through an aperture of a nozzle to maintain the total pressure of about 500 atm or greater within the pressure device.
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公开(公告)号：US11618709B2
公开(公告)日：2023-04-04
申请号：US17376284
申请日：2021-07-15
Applicant: CORNING INCORPORATED
Inventor： Yacob Mesfin Argaw , Nikolaos Pantelis Kladias , Robert Clark Moore , Bruce Warren Reding , Chunfeng Zhou
IPC: C03B37/027
Abstract: A method of processing an optical fiber includes drawing the optical fiber from a heated glass source, reheating the optical fiber, and cooling the optical fiber under vacuum at a cooling rate less than the cooling rate of the optical fiber in air at 25° C. and 1 atm. Cooling the optical fiber under vacuum is conducted after reheating the optical fiber. Cooling the optical fiber under vacuum reduces the rate of heat transfer from the optical fiber, which may enable further relaxation of the glass and reduction in the fictive temperature of the optical fiber. A system for processing an optical fiber includes a furnace containing a fiber preform, a first positioner, a reheating device, and a treatment device downstream of the reheating device, the treatment device operable to cool the optical fiber under vacuum to reduce the rate of heat transfer from the optical fiber.
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公开(公告)号：US10221089B2
公开(公告)日：2019-03-05
申请号：US15248060
申请日：2016-08-26
Applicant: Corning Incorporated
Inventor： Dana Craig Bookbinder , Ming-Jun Li , Bruce Warren Reding , Pushkar Tandon
IPC: C03B37/029 , C03B37/027
Abstract: An optical fiber with low fictive temperature along with a system and method for making the optical fiber are provided. The system includes a reheating stage that heats the fiber along the process pathway to a temperature sufficient to lower the fictive temperature of the fiber by relaxing the glass structure and/or driving the glass toward a more nearly equilibrium state. The fiber is drawn from a preform, conveyed along a process pathway, cooled and subsequently reheated to increase the time of exposure of the fiber to temperatures conducive to lowering the fictive temperature of the fiber. The process pathway may include multiple reheating stages as well as one or more fiber-turning devices.
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公开(公告)号：US10031045B2
公开(公告)日：2018-07-24
申请号：US15402468
申请日：2017-01-10
Applicant: Corning Incorporated
Inventor： Kirk Patton Bumgarner , Aditya Kaimal , Michael Terry Murphy , Bruce Warren Reding
Abstract: In one embodiment, an apparatus for screen testing an optical fiber includes a fiber conveyance pathway, a capstan having an outer circumference and a fiber contact region extending around the outer circumference, the fiber contact region having a durometer hardness of less than or equal to about 40 Shore A, where the capstan is positioned adjacent to the fiber conveyance pathway such that when the optical fiber is directed over the fiber conveyance pathway, the optical fiber engages with the fiber contact region, and a pinch belt positioned adjacent to the fiber conveyance pathway such that the fiber conveyance pathway extends between the pinch belt and the fiber contact region, where the pinch belt is engagable with the fiber contact region such that, when the optical fiber is directed over the fiber conveyance pathway, the optical fiber is impinged between the pinch belt and the fiber contact region.
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