专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

US20240343633A1 SELF-LEARNING FIBER PROCESSING SYSTEM AND METHOD 审中-公开
公开(公告)号：US20240343633A1
公开(公告)日：2024-10-17
申请号：US18602590
申请日：2024-03-12
申请人： 3SAE Technologies, Inc.
发明人： Robert G. Wiley , John Lower , Brett Clark
IPC分类号： C03B37/025 , C03B37/028 , C03B37/15
CPC分类号： C03B37/0253 , C03B37/028 , C03B37/15 , C03B2203/40 , C03B2205/40
摘要： Provided is a system for and a method of processing an optical fiber, such as tapering an optical fiber. The method includes receiving fiber parameters defining characteristics of an optical fiber, modeling an idealized fiber based on the fiber parameters to establish modeled data, and establishing processing parameters. A processing operation is performed on the optical fiber according to the processing parameters to produce a resultant fiber. Aspects of the resultant fiber are measured to establish measured data. The measured data and the modeled data are normalized to a common axis and a difference between the two is determined. The processing parameters are adjusted based on the differences.

2. 发明申请

US20180305239A1 METHOD OF MANUFACTURING OPTICAL FIBER, OPTICAL FIBER MANUFACTURING APPARATUS, AND CONTROL APPARATUS THEREFOR 审中-公开
公开(公告)号：US20180305239A1
公开(公告)日：2018-10-25
申请号：US16010968
申请日：2018-06-18
申请人： FUJIKURA LTD.
发明人： Kenji OKADA
IPC分类号： C03B37/025 , C03B37/027 , C03B37/03 , G02B6/02 , C03C25/106
CPC分类号： C03B37/0253 , C03B37/02718 , C03B37/03 , C03C25/106 , C03C2218/32 , G02B6/00 , G02B6/02395 , Y02P40/57
摘要： A method of manufacturing an optical fiber of the invention includes: preparing a direction changer; drawing a bare optical fiber from an optical fiber preform, thereby forming the bare optical fiber; providing a coated layer made of a resin on a periphery of the bare optical fiber; obtaining an optical fiber by curing the coated layer; changing a direction of the bare optical fiber by use of the direction changer; measuring a drawing velocity of the optical fiber; and adjusting a length of the bare optical fiber from a drawing unit to a coating unit by controlling a position of the direction changer based on a measurement value of the drawing velocity, the drawing unit forming the bare optical fiber, the coating unit providing the coated layer on the periphery of the bare optical fiber.

3. 发明申请

US20180099894A1 CONTROL DEVICE, AND MANUFACTURING APPARATUS OF OPTICAL FIBER 审中-公开
公开(公告)号：US20180099894A1
公开(公告)日：2018-04-12
申请号：US15837702
申请日：2017-12-11
申请人： FUJIKURA LTD.
发明人： Kenji OKADA
IPC分类号： C03B37/03 , C03C25/106 , G02B6/02
CPC分类号： C03B37/032 , C03B37/0253 , C03B2205/40 , C03C25/106 , G02B6/00 , G02B6/02395 , Y02P40/57
摘要： A control device which is used in a manufacturing apparatus of an optical fiber, the manufacturing apparatus including: a drawing unit; a coating unit; and a curing unit which cures the coating layer. The control device includes: one or a plurality of direction changing devices which change a direction of the bare optical fiber at any position between the drawing unit and the coating unit; a position detection unit which detects a position of the bare optical fiber in the direction changing device; an outer diameter measurement unit which measures an outer diameter of the bare optical fiber; and a control unit which controls a flow rate of a fluid introduced into the direction changing device on the basis of the position of the bare optical fiber measured by the position detection unit and the outer diameter of the bare optical fiber measured by the outer diameter measurement unit.

4. 发明申请

US20170297947A1 METHODS OF MAKING AN OPTICAL FIBER, AND OPTICAL FIBER 有权
公开(公告)号：US20170297947A1
公开(公告)日：2017-10-19
申请号：US15337591
申请日：2016-10-28
申请人： Corning Incorporated
发明人： Kenneth Duane Billings , Dana Craig Bookbinder , Paul Andrew Chludzinski , Robert Clark Moore , Pushkar Tandon
IPC分类号： C03B37/025 , G02B6/02 , C03C25/10 , G02B6/036
CPC分类号： C03B37/02718 , C03B37/0253 , C03B37/02727 , C03B37/029 , C03B37/032 , C03B2201/02 , C03B2201/12 , C03B2201/20 , C03B2201/31 , C03B2201/50 , C03B2203/224 , C03B2203/24 , C03B2203/26 , C03B2205/42 , C03B2205/44 , C03B2205/55 , C03B2205/56 , C03B2205/60 , C03C25/106 , G02B6/02004 , G02B6/02009 , G02B6/0281 , G02B6/03622 , G02B6/03627 , G02B6/03633 , G02B6/03694
摘要： According to some embodiments a method of processing an optical fiber comprises the steps of: (i) drawing the fiber at a drawing rate of at least 30 m/sec; and (ii) cooling the drawn fiber in a gas at an average cooling rate less than 5000° C./s, such that said cooling reduces the temperature of the fiber from an entering temperature in the range between 1500° C. and 1700° C. to another temperature in the range between 1200° C. and 1400° C., the gas being at a temperature between 800° C. and 1500° C.; and the thermal conductivity κ of the gas being not greater than 1.5×10−4 cal/cm-s-K for at least one temperature within a range of 800° C. to 1500° C. at one atm (atmosphere) pressure absolute.

5. 发明申请

US20170217822A1 METHOD OF MANUFACTURING OPTICAL FIBER 审中-公开
公开(公告)号：US20170217822A1
公开(公告)日：2017-08-03
申请号：US15514679
申请日：2016-08-10
申请人： FUJIKURA LTD.
发明人： Akihito IMASE
IPC分类号： C03B37/025
CPC分类号： C03B37/0253 , C03B37/02718 , C03B2205/56 , C03B2205/72 , Y02P40/57
摘要： An optical fiber manufacturing method includes: melting and drawing an optical fiber preform to form a glass fiber; cooling the glass fiber while inserting the glass fiber into a tubular slow-cooling device from an inlet end toward an outlet end thereof, and lowering an inner wall temperature of the slow-cooling device below a temperature of the glass fiber and providing a pressure gradient in which a pressure increases in a direction from the inlet end toward the outlet end inside the slow-cooling device when cooling the glass fiber, wherein the average pressure change dP/dL in a moving direction of the glass fiber inside the slow-cooling device satisfies the following Formula (1) when the tube inner diameter of the slow-cooling device is defined as D [m] and the length of an internal space of the slow-cooling device in the moving direction of the glass fiber is defined as L [m]. (πD2/4)×dP/dL≦0.03 (1)

6. 发明申请

US20170210664A1 APPARATUS FOR MANUFACTURING AN OPTICAL FIBER 审中-公开
公开(公告)号：US20170210664A1
公开(公告)日：2017-07-27
申请号：US15480493
申请日：2017-04-06
申请人： FUJIKURA LTD.
发明人： Kenji OKADA
IPC分类号： C03B37/03 , G02B6/02 , B65H57/04 , C03B37/025 , C03C25/10
CPC分类号： C03B37/032 , B65H57/04 , B65H2406/111 , B65H2701/32 , C03B37/0253 , C03C25/1055 , C03C25/106 , G02B6/02395 , Y02P40/57
摘要： An apparatus for manufacturing an optical fiber including: a drawing portion; a coating portion; and a curing portion, wherein: a direction changer which changes a direction of the bare optical fiber is disposed in any position from the drawing portion to the coating portion; the direction changer includes a guide groove which guides the bare optical fiber; a blowout port of a fluid which floats the bare optical fiber wired along the guide groove is formed along the guide groove in the guide groove; and in the blowout port, the Reynolds number in an inlet wire portion of the bare optical fiber to the guide groove and an outlet wire portion from the guide groove is greater than the Reynolds number in an intermediate portion between the inlet wire portion and the outlet wire portion.

7. 发明申请

US20170203996A1 MANUFACTURING METHOD FOR OPTICAL FIBER 审中-公开
公开(公告)号：US20170203996A1
公开(公告)日：2017-07-20
申请号：US15327436
申请日：2016-05-13
申请人： FUJIKURA LTD.
发明人： Takayuki Kitamura , Shunichirou Hirafune
IPC分类号： C03B37/025
CPC分类号： C03B37/0253 , C03B37/02727 , C03B2205/55 , C03B2205/56 , Y02P40/57
摘要： There is provided a manufacturing method for an optical fiber that easily reduces transmission losses in the optical fiber. The method includes a drawing process P1 of drawing an optical fiber from an optical fiber preform 1P in a drawing furnace 110; and a slow cooling process P3 of slowly cooling the optical fiber having been drawn in the drawing process P1 in an annealing furnace 121. The temperature of the optical fiber to be delivered into the annealing furnace 121 is a temperature of 1,300° C. or more and 1,650° C. or less. The temperature of the optical fiber to be delivered out of the annealing furnace 121 is a temperature of 1,150° C. or more and 1,400° C. less.

8. 发明申请

US20170010410A1 SPUN ROUND CORE FIBER 有权
公开(公告)号：US20170010410A1
公开(公告)日：2017-01-12
申请号：US15115392
申请日：2015-01-29
申请人： NLIGHT, INC.
发明人： Joona Koponen , Changgeng Ye , Ossi Kimmelma
IPC分类号： G02B6/028 , G02B6/02 , C03B37/027 , C03B37/028 , C03B37/012
CPC分类号： G02B6/0286 , C03B37/01222 , C03B37/0253 , C03B37/02745 , C03B37/02763 , C03B37/028 , C03B2203/12 , C03B2203/20 , C03B2203/32 , C03B2203/34 , C03B2205/07 , G02B6/02 , G02B6/02009 , G02B6/02338 , G02B6/028 , G02B6/14
摘要： Optical waveguide cores having refractive index profiles that vary angularly about a propagation axis of the core can provide single-mode operation with larger core diameters than conventional waveguides. An optical waveguide includes a core that extends along a propagation axis and has a refractive index profile that varies angularly about the propagation axis. The optical waveguide also includes a cladding disposed about the core and extending along the propagation axis. The refractive index profile of the core varies angularly along a length of the propagation axis.
摘要翻译：具有关于芯的传播轴成角度变化的折射率分布的光波导芯可以提供比常规波导更大的芯直径的单模操作。光波导包括沿着传播轴延伸并且具有关于传播轴线成角度变化的折射率分布的芯。光波导还包括围绕芯并且沿着传播轴线延伸的包层。芯的折射率分布沿着传播轴的长度成角度变化。

9. 发明申请

US20170003444A1 ULTRA-LOW-LOSS OPTICAL FIBER, AND METHOD AND APPARATUS FOR PRODUCING SAME 有权
标题翻译：超低光纤光纤，以及生产它们的方法和装置
公开(公告)号：US20170003444A1
公开(公告)日：2017-01-05
申请号：US15105634
申请日：2014-12-26
申请人： TAIHAN FIBEROPTICS CO., LTD.
发明人： Chi-Hwan OUH , Sung-Koog OH , Na-Eun KWACK , Eun-You HONG , Jong-Gil PARK , Ji-Hun YUN
IPC分类号： G02B6/02 , C03B37/02
CPC分类号： G02B6/02 , C03B37/0213 , C03B37/0253 , C03B37/02718 , C03B2201/31 , C03B2203/24 , G02B6/03627
摘要： This ultra-low-loss optical fiber comprises a core having a higher relative refractive index difference than silica and a cladding having a lower relative refractive index difference than silica. The relative refractive index difference of the core with respect to the refractive index of silica is 0.0030 to 0.0055, for example, and the relative refractive index difference of the cladding with respect to the refractive index of silica is −0.0020 to −0.0003. The ultra-low-loss optical fiber has the loss characteristic of simultaneously having optical losses of at most 0.324 dB/km at a wavelength of 1310 nm, at most 0.320 dB/km at a wavelength of 1383 nm, at most 0.184 dB/km at a wavelength of 1550 nm, and at most 0.20 dB/km at a wavelength of 1625 nm. The ultra-low-loss optical fiber is supercooled when the surface temperature of the optical fiber has a temperature range in a glass transition section during drawing.
摘要翻译：该超低损耗光纤包括具有比二氧化硅更高的相对折射率差的芯和具有比二氧化硅更低的相对折射率差的包层。相对于二氧化硅的折射率，芯的相对折射率差为0.0030〜0.0055，包层相对于二氧化硅的折射率的相对折射率差为-0.0020〜-0.0003。超低损耗光纤具有同时在1310nm的波长下同时具有至多0.324dB / km的光损耗的损耗特性，在1383nm波长下最多0.320dB / km，最多0.184dB / km 波长为1550nm，波长为1625nm时为0.20dB / km以下。当光纤的表面温度在拉伸期间具有玻璃化转变部分的温度范围时，超低损耗光纤是过冷的。

10. 发明申请

US20160357174A1 METHOD AND APPARATUS FOR FABRICATING MICROSTRUCTURED OPTICAL FIBERS 审中-公开
标题翻译：用于制造微结构光纤的方法和装置
公开(公告)号：US20160357174A1
公开(公告)日：2016-12-08
申请号：US14731562
申请日：2015-06-05
申请人： Imperial Innovations Limited
发明人： Peter BUCHAK , Darren CROWDY , Yvonne Marie STOKES , Michael James CHEN , Heike EBENDORFF-HEIDEPRIEM
IPC分类号： G05B19/4097 , G06F17/10
CPC分类号： C03B37/02781 , B29D11/00663 , C03B37/0253 , C03B2203/42 , C03B2205/40 , C03B2205/44
摘要： Prior to fabrication of an optical fiber with desired optical properties, a preform geometry is determined dependent upon a fiber geometry that possesses the desired optical properties. The desired geometry may contain a large number of channels. The processor determines the preform geometry by tracking backwards in time the parameters of a set of conformal mappings that describe the cross section of the fiber. Some of the drawing process parameters may be specified, while other parameters may be determined along with the preform geometry. The determined preform geometry may be used to fabricate the required preform. Using this preform, the determined drawing process parameters may be used to draw the desired fiber.
摘要翻译：在制造具有期望的光学性能的光纤之前，预制件几何形状取决于具有所需光学特性的光纤几何形状。期望的几何可以包含大量的通道。处理器通过在时间上跟踪描述光纤横截面的一组共形映射的参数来确定预成型件几何形状。可以指定一些绘制过程参数，而可以与预型件几何形状一起确定其他参数。所确定的预制件几何形状可用于制造所需的预制件。使用该预型件，可以使用确定的拉伸工艺参数来绘制所需的纤维。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式