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1. 发明申请

WO2015171893A1 APPARATUSES FOR SCREEN TESTING AN OPTICAL FIBER AND METHODS FOR USING THE SAME 审中-公开
标题翻译：用于屏幕测试光纤的装置及其使用方法
公开(公告)号：WO2015171893A1
公开(公告)日：2015-11-12
申请号：PCT/US2015/029688
申请日：2015-05-07
申请人： CORNING INCORPORATED
发明人： BUMGARNER, Kirk Patton , KAIMAL, Aditya , MURPHY, Michael Terry , REDING, Bruce Warren
IPC分类号： C03B37/03 , G01M11/08 , G01N3/08
CPC分类号： G01M11/088 , C03B37/03 , C03B37/032 , G01M11/30 , G01N3/08 , Y02P40/57
摘要： 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.
摘要翻译：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。

2. 发明申请

WO2021257642A1 METHODS OF MANUFACTURING A GLASS RIBBON 审中-公开
公开(公告)号：WO2021257642A1
公开(公告)日：2021-12-23
申请号：PCT/US2021/037531
申请日：2021-06-16
申请人： CORNING INCORPORATED
发明人： AMADON, Jeffrey Robert , JOUANNO, Jean-Marc Martin Gerard , LI, Xinghua , REDING, Bruce Warren , WHEDON, William Anthony , ZHANG, Rui , ZHAO, Peng
IPC分类号： C03B17/06
摘要： A method of manufacturing a glass ribbon can comprise flowing a glass-forming ribbon along a travel path. The glass-forming ribbon can comprise a first major surface and a second major surface opposite the first major surface. A thickness can be defined between the first major surface and the second major surface. The method can comprise heating the first major surface of the glass-forming ribbon at a target location of the travel path while the glass-forming ribbon is travelling along the travel path. The heating can increase a temperature of the glass-forming ribbon at the target location to a heating depth of about 250 micrometers or less from the first major surface. The method can comprise cooling the glass-forming ribbon into the glass ribbon. Prior to the heating, the glass-forming ribbon at the target location can comprise an average viscosity in a range from about 1,000 Pascal-seconds to about 1011 Pascal-seconds.

3. 发明申请

WO2019226445A1 VACUUM SLOW COOLING DEVICE FOR OPTICAL FIBER DRAW 审中-公开
公开(公告)号：WO2019226445A1
公开(公告)日：2019-11-28
申请号：PCT/US2019/032581
申请日：2019-05-16
申请人： CORNING INCORPORATED
发明人： ARGAW, Yacob Mesfin , KLADIAS, Nikolaos Pantelis , MOORE, Robert Clark , REDING, Bruce Warren , ZHOU, Chunfeng
IPC分类号： C03B37/027 , C03B37/03 , G02B6/00
摘要： 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.

4. 发明申请

WO2016089733A2 LOW ATTENUATION OPTICAL FIBER 审中-公开
标题翻译：低衰减光纤
公开(公告)号：WO2016089733A2
公开(公告)日：2016-06-09
申请号：PCT/US2015/062913
申请日：2015-11-30
申请人： CORNING INCORPORATED
发明人： BOOKBINDER, Dana Craig , LI, Ming-Jun , REDING, Bruce Warren , TANDON, Pushkar
IPC分类号： C03B37/027 , C03B37/03
CPC分类号： C03B37/035 , C03B37/025 , C03B37/02727 , C03B37/032 , C03B2205/42 , C03B2205/56
摘要： 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 (T?g#191) 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.
摘要翻译：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（T≤g＃191）或接近玻璃化转变温度（T g = 191）的温度下延长一段时间。对于二氧化硅基纤维，优选温度为1000℃至1700℃之间的温度。延长的停留时间在连续纤维制造过程中通过将纤维的路径长度增加到保持在1000℃和1700℃之间的温度的处理区域来实现。通过在处理区域中包括一个或多个流体支承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。

5. 发明申请

WO2021163130A1 SYSTEMS AND METHODS FOR PROCESSING OPTICAL FIBER 审中-公开
公开(公告)号：WO2021163130A1
公开(公告)日：2021-08-19
申请号：PCT/US2021/017377
申请日：2021-02-10
申请人： CORNING INCORPORATED
发明人： REDING, Bruce Warren , TANDON, Pushkar
IPC分类号： C03B37/01 , C03B37/02 , C03B37/012 , C03B37/07
摘要： A system for processing an optical fiber includes: a draw furnace (402), said draw furnace containing an optical fiber preform (404); a bare optical fiber (406) drawn from said optical fiber preform, said bare optical fiber extending from said draw furnace along a process pathway (408); and a slow cooling device (410) operatively coupled to and downstream from said draw furnace, said slow cooling device exposing said 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.

6. 发明申请

WO2020247364A1 SYSTEMS AND METHODS FOR PROCESSING AN OPTICAL FIBER 审中-公开
公开(公告)号：WO2020247364A1
公开(公告)日：2020-12-10
申请号：PCT/US2020/035686
申请日：2020-06-02
申请人： CORNING INCORPORATED
发明人： ARGAW, Yacob Mesfin , KLADIAS, Nikolaos Pantelis , MOORE, Robert Clark , REDING, Bruce Warren , ZHOU, Chunfeng
IPC分类号： C03B37/027
摘要： A system and method for processing an optical fiber (24) includes a treatment device (34) disposed downstream of a furnace (20) and including a treating zone. The treating zone includes a fiber inlet (62) and fiber outlet (64) and is configured to cool the optical fiber at a reduced pressure below ambient pressure and at a slow cooling rate less than an ambient cooling rate. A nozzle assembly (40) is disposed at one or more of the fiber inlet (62), the fiber outlet (64), upstream of the treating zone, and downstream of the treating zone. The nozzle assembly (40) includes multiple baffle plates (88) defining a number of nozzle chambers (86), each nozzle chamber (86) having a nozzle chamber pressure, wherein each baffle plate (88) includes an orifice (92) having a predetermined effective orifice diameter through which the optical fiber passes. Each nozzle chamber (86) is configured to sequentially change a nozzle chamber pressure between the reduced pressure and ambient pressure.

7. 发明申请

WO2018075852A1 PURGE DEVICE FOR AN OPTICAL FIBER DRAW SYSTEM 审中-公开
标题翻译：用于光纤拉制系统的清洁装置
公开(公告)号：WO2018075852A1
公开(公告)日：2018-04-26
申请号：PCT/US2017/057526
申请日：2017-10-20
申请人： CORNING INCORPORATED
发明人： JEWELL, John Michael , KLADIAS, Nikolaos Pantelis , NASON, Robert Walter , REDING, Bruce Warren , RICHTER, Edward Barry , VEBER, Daniel Paul , ZHOU, Chunfeng
IPC分类号： C03B37/027 , C03B37/029
摘要： 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.
摘要翻译：提供了一种光纤生产系统，其包括缓冷装置和位于缓冷装置上方的吹扫装置。净化装置包括限定入口的管。光纤延伸通过慢冷装置和吹扫装置。吹扫装置被配置为通过入口和光纤注入吹扫气体。

8. 发明申请

WO2017146923A1 METHODS AND SYSTEMS FOR PROCESSING OPTICAL FIBERS 审中-公开
标题翻译：加工光纤的方法和系统
公开(公告)号：WO2017146923A1
公开(公告)日：2017-08-31
申请号：PCT/US2017/017597
申请日：2017-02-13
申请人： CORNING INCORPORATED
发明人： AKARAPU, Ravindra Kumar , LI, Ming-Jun , LIU, Anping , NAYAK, Barada Kanta , REDING, Bruce Warren
IPC分类号： C03B37/027
CPC分类号： C03B37/12 , C03B37/025 , C03B37/02727 , C03B2205/20 , C03B2205/42 , G02B5/10 , G02B6/02 , Y02P40/57
摘要： A method and corresponding apparatus for processing optical fiber include directing light from a directed light source toward an optical fiber on a fiber draw. A fiber core of the optical fiber is heated, using at least the light from the directed light source, to a fiber core temperature within a glass transformation temperature range of the fiber core. The method can be used to reduce fictive temperature of the fiber core, with Rayleigh scattering being reduced, leading to lower attenuation losses in the fiber core.
摘要翻译：用于处理光纤的方法和相应设备包括将光从定向光源引向光纤上的光纤。使用至少来自定向光源的光将光纤的光纤芯加热至光纤芯的玻璃化转变温度范围内的光纤芯温度。该方法可用于降低纤芯的假想温度，瑞利散射减少，导致纤芯中的衰减损耗更低。

9. 发明申请

WO2017044543A1 METHOD AND APPARATUS FOR PRODUCING AN OPTICAL FIBER WITH LOW FICTIVE TEMPERATURE AND OPTICAL FIBER SO OBTAINED 审中-公开
标题翻译：用于制造具有低温度和光纤的光纤的方法和装置
公开(公告)号：WO2017044543A1
公开(公告)日：2017-03-16
申请号：PCT/US2016/050644
申请日：2016-09-08
申请人： CORNING INCORPORATED
发明人： BOOKBINDER, Dana Craig , LI, Ming-Jun , REDING, Bruce Warren , TANDON, Pushkar
IPC分类号： C03B37/027 , C03B37/029
CPC分类号： C03B37/029 , C03B37/02727 , C03B2201/02 , C03B2201/06 , C03B2205/55 , C03B2205/56
摘要： 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.
摘要翻译：提供具有低虚拟温度的光纤以及用于制造光纤的系统和方法。该系统包括一个再加热阶段，该加热阶段通过将玻璃结构松弛和/或将玻璃推向更接近平衡的状态，将纤维沿着加工路径加热至足以降低纤维的假想温度的温度。将纤维从预成型件中拉出，沿着工艺路径输送，冷却并随后再加热，以增加纤维暴露于有助于降低纤维的假想温度的温度。工艺路径可以包括多个再加热阶段以及一个或多个纤维转向装置。

10. 发明公开

EP3419939A1 METHODS AND SYSTEMS FOR PROCESSING OPTICAL FIBERS 审中-公开
公开(公告)号：EP3419939A1
公开(公告)日：2019-01-02
申请号：EP17706129.8
申请日：2017-02-13
申请人： Corning Incorporated
发明人： AKARAPU, Ravindra Kumar , LI, Ming-Jun , LIU, Anping , NAYAK, Barada Kanta , REDING, Bruce Warren
IPC分类号： C03B37/027

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