| A new phase-shifted long-period fiber grating for simultaneous measurement of torsion and temperature |
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| 作者姓名： | 孙翠婷 王冉 金夕人 王泽民 刘卫亮 张硕 马一巍 林静雨 李玥 耿涛 孙伟民 屈中权 苑立波 |
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| 作者单位： | Key Laboratory of In-Fiber Integrated Optics;Yunnan Observatories;Photonics Research Center |
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| 基金项目： | supported by the National Natural Science Foundation of China(No.11527804);Joint Research Fund in Astronomy under cooperative agreement between the National Natural Science Foundation of China(NSFC)and Chinese Academy of Sciences(CAS)(Nos.U1831115 and U1631239);Open Project of Key Laboratory of Astronomical Optics&Technology,Nanjing Institute of Astronomical Optics&Technology,Chinese Academy of Sciences(No.CAS-KLAOT-KF201806);Fundamental Research Funds for the Central Universities;111 Project(No.B13015);the Harbin Engineering University. |
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| 摘 要： | A novel phase-shifted long-period fiber grating(PS-LPFG)for the simultaneous measurement of torsion and temperature is described and experimentally demonstrated.The PS-LPFG is fabricated by inserting a pretwisted structure into the long-period fiber grating(LPFG)written in single-mode fiber(SMF).Experimental results show that the torsion sensitivities of the two dips are?0.114 nm/(rad/m)and?0.069 nm/(rad/m)in the clockwise direction,and?0.087 nm/(rad/m)and?0.048 nm/(rad/m)in the counterclockwise direction,respectively.The temperature sensitivities of the two dips are 0.057 nm/℃ and 0.051 nm/℃,respectively.The two dips of the PS-LPFG exhibit different responses to torsion and temperature.Simultaneous measurement of torsion and temperature can be implemented using a sensor.The feasibility and stabilization of simultaneous torsion and temperature measurement have been confirmed,and hence this novel PS-LPFG demonstrates potential for fiber sensing and engineering applications.
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| 关 键 词： | phase-shifted long-period FIBER GRATING pre-twisted structure SINGLE-MODE FIBER SIMULTANEOUS measurement TORSION temperature |
A new phase-shifted long-period fiber grating for simultaneous measurement of torsion and temperature |
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| Cuiting Sun,Ran Wang,Xiren Jin,Zemin Wang,Weiliang Liu,Shuo Zhang,Yiwei Ma,Jingyu Lin,Yue Li,Tao Geng,Weimin Sun,Zhongquan Qu,Libo Yuan.A new phase-shifted long-period fiber grating for simultaneous measurement of torsion and temperature[J].中国光学快报(英文版),2020(2):39-43. |
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| Authors: | Cuiting Sun Ran Wang Xiren Jin Zemin Wang Weiliang Liu Shuo Zhang Yiwei Ma Jingyu Lin Yue Li Tao Geng Weimin Sun Zhongquan Qu Libo Yuan |
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| Institution: | (Key Laboratory of In-Fiber Integrated Optics,Ministry of Education,Harbin Engineering University,Harbin 150001,China;Yunnan Observatories,Chinese Academy of Sciences,Kunming 650216,China;Photonics Research Center,Guilin University of Electronics Technology,Guilin 541004,China) |
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