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公开(公告)号：US20180299615A1
公开(公告)日：2018-10-18
申请号：US15766837
申请日：2016-10-21
Inventor： Qi MO , Lijie HUANG , Huang YU , Cheng LIU , Wen CHEN , Zhiqiang YU , Dongxiang WANG , Bingfeng CAI , Liming CHEN , Huiping SHI
CPC classification number: G02B6/0365 , G02B1/046 , G02B1/048 , G02B6/02395 , G02B6/036
Abstract: The present invention relates to the field of single-mode optical fibers and discloses a bending-insensitive, radiation-resistant single-mode optical fiber, sequentially including from inside to outside: a core, inner claddings, and an outer cladding, all made from a quartz material. The inner claddings comprise, from inside to outside, a first fluorine-doped inner cladding and a second fluorine-doped inner cladding. The core and the first fluorine-doped inner cladding are not doped with germanium. The respective concentrations of other metal impurities and phosphorus are less than 0.1 ppm. By mass percent, the core has a fluorine dopant content of 0-0.45% and a chlorine content of 0.01-0.10%; the first fluorine-doped inner cladding has a fluorine concentration of 1.00-1.55%; and the second fluorine-doped inner cladding has a fluorine concentration of 3.03-5.00%.
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2.发明申请公开(公告)号：US20180305237A1
公开(公告)日：2018-10-25
申请号：US15769342
申请日：2016-10-21
Inventor： Cheng DU , Wenyong LUO , Lei YAN , Tao ZHANG , Chao CHEN , Yili KE , Ming KONG , Jie ZHANG , Zhijian LIU , Lifeng LIU
IPC: C03B37/018
Abstract: A method for preparing a doped optical fibre preform includes formulating, a rare earth material or a functional metal material and a co-doping agent into a doping solution, mixing a high-purity quartz powder with the doping solution, drying same at a temperature of 100°C.-150°C. for 12-48 hours, crushing and screening the same to obtain a doped quartz powder; depositing the doped quartz powder onto the surface of a target rod to form a doped core layer; replacing the doped quartz powder with the high-purity quartz powder, and depositing the high-purity quartz powder onto the surface of the doped core layer to form a quartz outer cladding; and removing the target rod, and gradually collapsing the entirety formed from the doped core layer and the quartz outer cladding at a high temperature to obtain the doped optical fibre preform.
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3.发明申请公开(公告)号：US20190012246A1
公开(公告)日：2019-01-10
申请号：US15744806
申请日：2016-10-21
Inventor： Ping LIU , Zebin LEI , Cuimei LIU , Linyin SONG
IPC: G06F11/22
CPC classification number: G06F11/2294 , G06F11/221 , G06F11/2257
Abstract: A method for locating and isolating a failed node of an electromechanical management bus in a communication device. The method includes, in a communication process, an SHMC in operation records communication states of electromechanical management buses; the SHMC in operation performs calculation and analysis operations on data associated with the communication states, and determines whether there is an irrecoverable communication abnormality in a corresponding bus; if so, the SHMC sends, by means of a normal electromechanical management bus, a command to an electromechanical management node subordinate to the abnormal electromechanical management bus, such that the electromechanical management node controls a corresponding mechanical switch of the bus, coordinates respective nodes of the abnormal electromechanical management bus to conduct mutual communication tests with each other, locates a failed node, and returns location information of the failed node.
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公开(公告)号：US09739936B2
公开(公告)日：2017-08-22
申请号：US15317102
申请日：2015-11-03
Applicant: WUHAN RESEARCH INSTITUTE OF POSTS AND TELECOMMINICATIONS , FIBERHOME TELECOMMUNICATION TECHNOLOGIES CO., LTD.
Inventor： Qi Mo , Huang Yu , Wen Chen , Cheng Du , Zhiqiang Yu , Dongxiang Wang , Bingfeng Cai
CPC classification number: G02B6/03666 , G02B6/0288
Abstract: A low-loss few-mode fiber relates to the technical field of optical communications and related sensing devices, and includes, from inside to outside, a core layer (1), a fluorine-doped quartz inner cladding (2), a fluorine-doped quartz second core layer (3), a fluorine-doped quartz depressed cladding (4) and a fluorine-doped quartz outer cladding (5); germanium element is not doped within the core layer (1), the refractive index of the core layer (1) is in gradient distribution, and the distribution is a power-exponent distribution; the maximum value of difference in relative refractive index between the core layer (1) and the fluorine-doped quartz inner cladding (2) is 0.3% to 0.9%; the relative refractive index difference of the fluorine-doped quartz inner cladding (2) with respect to synthetic quartz is −0.3% to −0.5%; the difference in relative refractive index between the fluorine-doped quartz second core layer (3) and the fluorine-doped quartz inner cladding (2) is 0.05% to 0.2%; the difference in relative refractive index between the fluorine-doped quartz depressed cladding (4) and the fluorine-doped quartz inner cladding (2) is −0.1% to −0.5%; the relative refractive index difference of the fluorine-doped quartz outer cladding (5) with respect to synthetic quartz is −0.3% to −0.5%. The transmission loss of optical signals of the linear polarization modes that are supported by the few-mode fiber and the relay cost are reduced.
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公开(公告)号：US09647413B2
公开(公告)日：2017-05-09
申请号：US14909441
申请日：2014-08-21
Inventor： Cheng Du , Wei Chen , Shiyu Li , Yili Ke , Qi Mo , Tao Zhang , Wenyong Luo , Kun Du , Rong Dan
IPC: H01S3/094 , C03B37/012 , C03B37/027 , H01S3/067 , C03B37/025
CPC classification number: H01S3/094019 , C03B37/01205 , C03B37/01228 , C03B37/0253 , C03B37/027 , C03B2201/34 , C03B2203/02 , C03B2203/10 , C03B2203/32 , C03B2203/40 , C03B2205/40 , H01S3/06729 , H01S3/06737 , H01S3/094053
Abstract: Provided are a high-efficiency parallel-beam laser optical fiber drawing method and optical fiber, the method including the steps of: S1: providing base planes on the side surfaces of both a gain optical fiber preform and a pump optical fiber preform, inwardly processing the base plane of the gain optical fiber preform to make a plurality of ribs protrude, and inwardly providing a plurality of grooves on the base plane of the pump optical fiber preform; S2: embedding the ribs into the grooves, tapering and fixing one end of the combination of the ribs and the grooves to form a parallel-beam laser optical fiber preform; S3: drawing the parallel-beam laser optical fiber preform into parallel-beam laser optical fibers. The process has high repeatability, and the obtained parallel-beam laser achieves peelability of pump optical fibers in a set area, thus facilitating multi-point pump light injection of parallel-beam laser optical fibers.
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Patent Agency Ranking
公开(公告)号：US10725881B2
公开(公告)日：2020-07-28
申请号：US15744806
申请日：2016-10-21
Inventor： Ping Liu , Zebin Lei , Cuimei Liu , Linyin Song
IPC: G06F11/22
Abstract: A method for locating and isolating a failed node of an electromechanical management bus in a communication device. The method includes, in a communication process, an SHMC in operation records communication states of electromechanical management buses; the SHMC in operation performs calculation and analysis operations on data associated with the communication states, and determines whether there is an irrecoverable communication abnormality in a corresponding bus; if so, the SHMC sends, by means of a normal electromechanical management bus, a command to an electromechanical management node subordinate to the abnormal electromechanical management bus, such that the electromechanical management node controls a corresponding mechanical switch of the bus, coordinates respective nodes of the abnormal electromechanical management bus to conduct mutual communication tests with each other, locates a failed node, and returns location information of the failed node.
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7.发明授权公开(公告)号：US10689287B2
公开(公告)日：2020-06-23
申请号：US15769342
申请日：2016-10-21
Inventor： Cheng Du , Wenyong Luo , Lei Yan , Tao Zhang , Chao Chen , Yili Ke , Ming Kong , Jie Zhang , Zhijian Liu , Lifeng Liu
IPC: C03B37/012 , C03B37/018
Abstract: A method for preparing a doped optical fibre preform includes formulating, a rare earth material or a functional metal material and a co-doping agent into a doping solution, mixing a high-purity quartz powder with the doping solution, drying same at a temperature of 100° C.-150° C. for 12-48 hours, crushing and screening the same to obtain a doped quartz powder; depositing the doped quartz powder onto the surface of a target rod to form a doped core layer; replacing the doped quartz powder with the high-purity quartz powder, and depositing the high-purity quartz powder onto the surface of the doped core layer to form a quartz outer cladding; and removing the target rod, and gradually collapsing the entirety formed from the doped core layer and the quartz outer cladding at a high temperature to obtain the doped optical fibre preform.
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8.发明申请公开(公告)号：US20170164075A1
公开(公告)日：2017-06-08
申请号：US15039213
申请日：2014-09-18
CPC classification number: H04Q11/0066 , H04B10/225 , H04B10/2504 , H04L29/08 , H04L41/00 , H04L41/082 , H04Q11/0067 , H04Q2011/0079
Abstract: A method and system for updating an Optical Distribution Network (ODN) device by using an intelligent management terminal are disclosed. The method includes the following steps: an ODN management server connects to an intelligent management terminal through 2G/3G/Wifi, the intelligent management terminal is connected to an identifier of fiber's both terminations through USB or Bluetooth; the optical fiber connector is connected to an ODN device through USB, the ODN management server communicates wirelessly with the ODN device through the intelligent management terminal as a transfer station, and the ODN device downloads updating file from the ODN management server through the intelligent management terminal as a transfer station. The method and system can realize the wireless communication between the ODN network management server and the ODN device, thereby accomplishing the updating of the ODN device by the intelligent management terminal without cable networks wherever 2G/3G/Wifi.
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公开(公告)号：US20170139129A1
公开(公告)日：2017-05-18
申请号：US15317398
申请日：2015-11-03
Applicant: FIBERHOME TELECOMMUNICATION TECHNOLOGIES CO.,LTD. , Wuhan Fiberhome Ruiguang Technology CO.,LTD.
Inventor： WENYONG LUO , ZHIJIAN LIU , YILI KE , QI MO , FUMING HU , QIONG LEI , ZHIWEN KANG , RONG DAN , LEI ZHAO
CPC classification number: G02B6/024 , C03B37/01217 , C03B2203/31 , C03C25/1065 , G02B6/02395 , G02B6/0286 , G02B6/036 , G02B6/03688 , G02B6/03694 , G02F1/0134
Abstract: Disclosed is a small-diameter polarization maintaining optical fiber, which relates to the field of special optical fibers. The small-diameter polarization maintaining optical fiber comprises a quartz optical fiber (5); the periphery thereof is provided with an inner coating (6) and an outer coating (8); the interior of the quartz optical fiber (5) is provided with an optical fiber core layer (1) and a quartz cladding (2); two stress zones (4) are arranged between the optical fiber core layer (1) and the quartz cladding (2); a buffer coating (7) is arranged between the inner coating (6) and the outer coating (8); the periphery of each stress zone (4) is provided with a buffer layer (3) which is concentric with the stress zone (4); when a working wavelength of a small-diameter polarization maintaining optical fiber is 1310 nm, the attenuation thereof reaches less than 0.5 dB/km, and the crosstalk reaches −35 dB/km; and when the working wavelength of the small-diameter polarization maintaining optical fiber is 1550 nm, the attenuation thereof reaches less than 0.4 dB/km, and the crosstalk reaches −30 dB/km. The optical fiber not only has excellent stability characteristics of attenuation and crosstalk, but also has the excellent stability characteristic of long-term operation, and can provide a better optical fiber ring for research on a high-precision optical fiber gyroscope, thereby laying the foundation for the development directions of miniaturization and high precision of the optical fiber gyroscope.
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10.发明申请公开(公告)号：US20160181758A1
公开(公告)日：2016-06-23
申请号：US14909441
申请日：2014-08-21
Inventor： Cheng DU , Wei CHEN , Shiyu LI , Yili KE , Qi MO , Tao ZHANG , Wenyong LUO , Kun DU , Rong DAN
IPC: H01S3/094 , C03B37/027 , C03B37/012 , H01S3/067 , C03B37/025
CPC classification number: H01S3/094019 , C03B37/01205 , C03B37/01228 , C03B37/0253 , C03B37/027 , C03B2201/34 , C03B2203/02 , C03B2203/10 , C03B2203/32 , C03B2203/40 , C03B2205/40 , H01S3/06729 , H01S3/06737 , H01S3/094053
Abstract: Provided are a high-efficiency parallel-beam laser optical fiber drawing method and optical fiber, the method including the steps of: S1: providing base planes on the side surfaces of both a gain optical fiber preform and a pump optical fiber preform, inwardly processing the base plane of the gain optical fiber preform to make a plurality of ribs protrude, and inwardly providing a plurality of grooves on the base plane of the pump optical fiber preform; S2: embedding the ribs into the grooves, tapering and fixing one end of the combination of the ribs and the grooves to form a parallel-beam laser optical fiber preform; S3: drawing the parallel-beam laser optical fiber preform into parallel-beam laser optical fibers. The process has high repeatability, and the obtained parallel-beam laser achieves peelability of pump optical fibers in a set area, thus facilitating multi-point pump light injection of parallel-beam laser optical fibers.
Abstract translation: 提供了一种高效平行光束激光光纤拉丝方法和光纤，该方法包括以下步骤：S1：在增益光纤预制棒和泵浦光纤预制棒的侧面上设置底面，向内加工 增益光纤预制棒的基面使多个肋突出，并在泵光纤预制棒的基面上向内提供多个凹槽; S2：将肋嵌入凹槽中，锥形并固定肋和凹槽的组合的一端以形成平行光束激光光纤预制件; S3：将平行光束激光光纤预制件绘制成平行光束激光光纤。 该方法具有高重复性，所得到的平行光束激光器在设定区域实现了泵浦光纤的可剥离性，从而促进了平行光束激光光纤的多点泵浦光注入。
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