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1. 发明授权

US11971310B2 Method for producing an optical fibre for a distributed measurement of temperature or deformation in a harsh environment using the Rayleigh backscattered signal 有权
公开(公告)号：US11971310B2
公开(公告)日：2024-04-30
申请号：US17254080
申请日：2019-06-21
申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , UNIVERSITE DE LILLE
发明人： Patrick Bulot , Remy Bernard , Odile Cristini , Monika Bouet , Guillaume Laffont , Marc Douay
IPC分类号： G01K11/32 , C03B37/014 , C03B37/027 , G01B11/16 , G02B6/02
CPC分类号： G01K11/32 , C03B37/0144 , C03B37/02718 , G01B11/16 , G02B6/0229 , C03B2201/40
摘要： An optical fibre, for use in the field of distributed measurement of temperature or deformation by optical reflectometry in the frequency domain using the Rayleigh backscattered signal in the fibre, includes a core doped with nanoparticles for example formed from gold particles covered with zirconium oxide, and can be subjected to high temperatures during the measurement. A method for producing the optical fibre includes a step of heat treatment during which the optical fibre is subjected, for a duration of at least one hour, to a heat treatment temperature higher than a maximum temperature to which it will be subjected during a measurement.

2. 发明授权

US10875805B2 Apparatus and method for cooling a glass strand produced by means of tube drawing 有权
公开(公告)号：US10875805B2
公开(公告)日：2020-12-29
申请号：US15957965
申请日：2018-04-20
申请人： SCHOTT AG
发明人： Volker Trinks , Franz Ott
IPC分类号： C03B37/02 , C03B25/04 , C03B37/027
CPC分类号： C03B37/0213 , C03B25/04 , C03B37/02718 , C03B2205/55
摘要： The present disclosure provides the installation of an apparatus for cooling a manufactured glass rod. The apparatus has at least two cooling chambers arranged along the glass strand for sectional cooling of the glass strand. A gaseous cooling medium is either blown into the cooling chamber or sucked out of the cooling chambers. The glass strand is passed through each cooling chamber, with an orifice provided at each of the pass-through points, whose opening is larger than the cross-section or diameter of the glass strand. As a result, an annular gap forms between the opening and the surface of the glass strand, so that a turbulent flow of the gaseous cooling medium is generated, which enables a high cooling rate.

3. 发明授权

US09932260B2 Methods of making an optical fiber, and optical fiber 有权
公开(公告)号：US09932260B2
公开(公告)日：2018-04-03
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： C03B37/027 , C03B37/025 , G02B6/036 , C03C25/10 , G02B6/02
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.

4. 发明申请

US20170219770A1 LOW ATTENUATION FIBER WITH VISCOSITY MATCHED CORE AND INNER CLAD 审中-公开
公开(公告)号：US20170219770A1
公开(公告)日：2017-08-03
申请号：US15485619
申请日：2017-04-12
申请人： Corning Incorporated
发明人： Dana Craig Bookbinder , Ming-Jun Li , Hazel Benton Matthews, III , Pushkar Tandon
IPC分类号： G02B6/036 , C03C3/06 , C03C13/04 , G02B6/02 , C03B37/027
CPC分类号： G02B6/03627 , C03B37/02 , C03B37/027 , C03B37/02718 , C03B37/02727 , C03B2201/12 , C03B2201/20 , C03B2201/31 , C03B2203/223 , C03B2203/23 , C03B2203/24 , C03B2205/55 , C03B2205/56 , C03C3/06 , C03C13/045 , C03C13/046 , C03C2201/12 , C03C2201/31 , C03C2213/00 , G02B6/02014
摘要： A single mode optical fiber having a core made from silica and less than or equal to about 6.5 weight % germania and having a maximum relative refractive index Δ1MAX. The optical fiber also has an inner cladding surrounding the core and having a minimum relative refractive index Δ2MIN. A difference between a softening point of the core and a softening point of the inner cladding is less than or equal to about 20° C., and Δ1MAX>Δ2MIN. The single mode optical fiber may also have an outer cladding surrounding the inner cladding made from silica or SiON. The outer cladding has a maximum relative refractive index Δ3MAX, and Δ3MAX>Δ2MIN. A method for manufacturing an optical fiber includes providing a preform to a first furnace, the preform, drawing the optical fiber from the preform, and cooling the drawn optical fiber in a second furnace.

5. 发明授权

US09594211B1 Method of fabrication of low-bend-loss single mode fibers of very large mode areas 有权
标题翻译：制造非常大模式区域的低弯曲损耗单模光纤的方法
公开(公告)号：US09594211B1
公开(公告)日：2017-03-14
申请号：US14659422
申请日：2015-03-16
申请人： Ravinder Jain
发明人： Ravinder Jain
IPC分类号： G02B6/028 , G02B6/036 , B29D11/00 , C03B37/016 , C03B37/02 , B29K105/00
CPC分类号： G02B6/028 , B29D11/00682 , B29D11/00721 , B29K2105/253 , B29K2995/0031 , C03B37/0122 , C03B37/016 , C03B37/02718 , C03B37/0279 , C03B2203/02 , C03B2203/04 , C03B2203/18 , C03B2203/26 , G02B6/02333 , G02B6/02338 , G02B6/02357 , G02B6/036
摘要： The present invention provides an optical fiber and method of making the same. The optical fiber includes a body for transmitting light. The body has an anisotropic refractive index wherein the anisotropic refractive index offsets changes in the refractive index of the fiber caused by bending the fiber. The fiber body may further include a core and cladding.
摘要翻译：本发明提供一种光纤及其制造方法。光纤包括用于透射光的主体。主体具有各向异性折射率，其中各向异性折射率偏移由纤维弯曲引起的纤维的折射率变化。纤维体还可以包括芯和包层。

6. 发明申请

US20150160410A1 OPTICAL FIBER 有权
标题翻译：光纤
公开(公告)号：US20150160410A1
公开(公告)日：2015-06-11
申请号：US14628077
申请日：2015-02-20
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Tetsuya NAKANISHI , Tatsuya KONISHI , Kazuya KUWAHARA
IPC分类号： G02B6/036
CPC分类号： G02B6/036 , C03B37/027 , C03B37/02718 , C03B2201/02 , C03B2201/12 , C03B2201/20 , C03B2201/31 , C03B2203/22 , G02B6/02395 , G02B6/03694
摘要： An inexpensive low-attenuation optical fiber 1 suitable for use as an optical transmission line in an optical access network is a silica based glass optical fiber and includes a core 11 including the center axis, an optical cladding 12 surrounding the core, and a jacket 13 surrounding the optical cladding. The core contains GeO2 and has a relative refractive index difference Δcore, based on the optical cladding, greater than or equal to 0.35% and less than or equal to 0.50% and has a refractive index volume v greater than or equal to 0.045 μm2 and less than or equal to 0.095 μm2. The jacket has a relative refractive index difference ΔJ greater than or equal to 0.03% and less than or equal to 0.20%. Glass constituting the core has a fictive temperature higher than or equal to 1400° C. and lower than or equal to 1590° C. Residual stress in the core is compressive stress that has an absolute value greater than or equal to 5 MPa.
摘要翻译：适合用作光接入网络中的光传输线的便宜的低衰减光纤1是二氧化硅基玻璃光纤，并且包括包括中心轴的芯11，围绕芯的光学包层12和外壳13 围绕光学包层。芯包含GeO 2，并且具有基于光学包层的相对折射率差＆Dgr芯，大于或等于0.35％且小于或等于0.50％，并且具有大于或等于0.045μm2的折射率体积v 小于或等于0.095μm2。护套的相对折射率差Dgr; J大于或等于0.03％且小于或等于0.20％。构成芯的玻璃具有高于或等于1400℃且低于或等于1590℃的假想温度。芯中的残余应力是绝对值大于或等于5MPa的压应力。

7. 发明授权

US08661856B2 Manufacturing method of optical fiber 有权
标题翻译：光纤制造方法
公开(公告)号：US08661856B2
公开(公告)日：2014-03-04
申请号：US13161132
申请日：2011-06-15
申请人： Kenji Okada
发明人： Kenji Okada
IPC分类号： C03B37/025
CPC分类号： C03B37/02718 , C03B2205/50 , C03C25/12 , Y02P40/57
摘要： In an optical fiber manufacturing method, the cooling device and the coating device are connected in an airtight manner and by preventing a cooling gas, flowing inside the cooling device, from flowing into the coating device by a meniscus of resin inside of the coating device, a flow of the cooling gas inside the cooling device is discharged to an outside of an upper end of the cooling device as an upward stream; helium gas as the cooling gas flows into a lower portion of the cooling device and carbon dioxide gas as the cooling gas which is separated from the helium gas flows into a side lower than a position where the helium gas flows in, during the forcible cooling; and a flow rate of the helium gas and a flow rate of the carbon dioxide gas are individually controlled.
摘要翻译：在光纤制造方法中，冷却装置和涂布装置以气密的方式连接，并且通过防止在冷却装置内流动的冷却气体通过涂覆装置内部的树脂的弯液面流入涂布装置，冷却装置内部的冷却气体的流动作为向上的流被排出到冷却装置的上端的外部; 氦气作为冷却气体流入冷却装置的下部，二氧化碳气体作为与氦气分离的冷却气体在强制冷却时流入低于氦气流入的一侧的一侧; 分别控制氦气的流量和二氧化碳气体的流量。

8. 发明授权

US08588573B2 Method for manufacturing optical fiber and optical fiber 有权
标题翻译：制造光纤和光纤的方法
公开(公告)号：US08588573B2
公开(公告)日：2013-11-19
申请号：US13183561
申请日：2011-07-15
申请人： Kenji Okada
发明人： Kenji Okada
IPC分类号： G02B6/00 , C03C25/10 , C03B37/026
CPC分类号： C03B37/02718 , C03B2205/55 , C03C25/12 , Y02P40/57
摘要： A method for manufacturing an optical fiber in which a flow of a cooling gas within a cooling device is made to be an upward flow and the cooling gas is discharged to outside from an upper end of the cooling device by connecting the cooling device and a coating device in an airtight manner, and closing a flow of the cooling gas which flows toward a coating device within the cooling device using a meniscus of resin within the coating device. A temperature of the cooling gas is increased toward an upper portion of the cooling device from a lower portion of the cooling device by adjusting the flow rate of the cooling gas.
摘要翻译：一种制造光纤的方法，其中冷却装置内的冷却气体的流动为向上流动，并且冷却气体通过连接冷却装置和涂层而从冷却装置的上端排出到外部装置，并且使用涂布装置内的树脂弯月形闭合冷却装置内的涂覆装置流动的冷却气体的流动。通过调节冷却气体的流量，冷却装置的温度从冷却装置的下部朝向冷却装置的上部增加。

9. 发明授权

US08528368B2 Methods and systems for producing a coated optical fibers 有权
标题翻译：用于制造涂覆光纤的方法和系统
公开(公告)号：US08528368B2
公开(公告)日：2013-09-10
申请号：US12268033
申请日：2008-11-10
申请人： James Henry Faler , Andrey V. Filippov , Bruce Warren Reding , Bradley Kent Shepard , David Andrew Tucker
发明人： James Henry Faler , Andrey V. Filippov , Bruce Warren Reding , Bradley Kent Shepard , David Andrew Tucker
IPC分类号： C03B37/01
CPC分类号： C03B37/032 , C03B37/02718 , C03C25/12
摘要： Methods for producing a coated optical fiber may include drawing an optical fiber from a draw furnace along a first pathway and redirecting the optical fiber along a second, different pathway which is non-parallel with the first pathway. The optical fiber may be coated as it travels along the second pathway.
摘要翻译：制造涂覆光纤的方法可以包括沿着第一路径从拉制拉制光纤，并且沿着与第一路径不平行的第二不同路径重定向光纤。当光纤沿着第二路径行进时，可以涂覆光纤。

10. 发明申请

US20130148934A1 OPTICAL FIBER, OPTICAL TRANSMISSION SYSTEM, AND METHOD OF MAKING OPTICAL FIBER 有权
标题翻译：光纤，光传输系统和制造光纤的方法
公开(公告)号：US20130148934A1
公开(公告)日：2013-06-13
申请号：US13706458
申请日：2012-12-06
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Tetsuya NAKANISHI , Tatsuya KONISHI , Kazuya KUWAHARA
IPC分类号： G02B6/028 , C03B37/027
CPC分类号： G02B6/028 , C03B37/02718 , C03B37/02727 , C03B2201/075 , C03B2201/12 , C03B2201/23 , C03B2205/56 , C03C13/045 , C03C13/046
摘要： Provided is an inexpensive low-loss optical fiber suitably used in an optical transmission network. An optical fiber includes a core, an optical cladding, and a jacket. The core has a relative refractive index difference between 0.2% and 0.32% and has a refractive index volume between 9%·μm2 and 18%·μm2. The jacket has a relative refractive index difference between 0.03% and 0.20%. Glass constituting the core has a fictive temperature between 1400° C. and 1560° C. Stress remaining in the core is compressive stress. A cutoff wavelength measured on a fiber having a length of 2 m is 1300 nm or more and a cutoff wavelength measured on a fiber having a length of 100 m is 1500 nm or less. An effective area at a wavelength of 1550 nm is 110 μm2 or more. A attenuation at a wavelength of 1550 nm is 0.19 dB/km or less.
摘要翻译：提供了适用于光传输网络的便宜的低损耗光纤。光纤包括芯，光学包层和外壳。芯的相对折射率差在0.2％至0.32％之间，折射率体积在9％·mum2和18％·mum2之间。护套的相对折射率差为0.03％至0.20％。构成核心的玻璃具有1400℃至1560℃之间的假想温度。芯体中的应力是压应力。在长度为2μm的光纤上测量的截止波长为1300nm以上，在长度为100μm的光纤上测定的截止波长为1500nm以下。 1550nm波长的有效面积为110m 2以上。在1550nm波长处的衰减为0.19dB / km或更小。

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