中国物理B ›› 2022, Vol. 31 ›› Issue (9): 94208-094208.doi: 10.1088/1674-1056/ac5395

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Temperature and strain sensitivities of surface and hybrid acoustic wave Brillouin scattering in optical microfibers

Yi Liu(刘毅)1,2,3,4, Yuanqi Gu(顾源琦)1, Yu Ning(宁钰)1, Pengfei Chen(陈鹏飞)1, Yao Yao(姚尧)1, Yajun You(游亚军)5, Wenjun He(贺文君)6, and Xiujian Chou(丑修建)4,†   

  1. 1 Taiyuan University of Technology, Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan 030024, China;
    2 Taiyuan University of Technology, Institute of Optoelectronic Engineering, College of Physics and Optoelectronics, Taiyuan 030024, China;
    3 Strong Digital Technology Co., Ltd. (Thinvent), Nanchang 410000, China;
    4 North University of China, Key Laboratory of Instrumentation Science and Dynamic Measurement Ministry of Education, Taiyuan 030051, China;
    5 North University of China, College of Mechatronics Engineering, Taiyuan 030051, China;
    6 North University of China, Science and Technology on Electronic Test and Measurement Laboratory, School of Instrument and Electronics, Taiyuan 030051, China
  • 收稿日期:2021-12-17 修回日期:2022-01-30 接受日期:2022-02-10 出版日期:2022-08-19 发布日期:2022-09-01
  • 通讯作者: Xiujian Chou E-mail:chouxiujian@nuc.edu.cn
  • 基金资助:
    Project supported by the National Science Fund for Distinguished Young Scholars (Grant Nos. 61705157 and 61805167), the National Natural Science Foundation of China (Grant Nos. 61975142 and 11574228), China Postdoctoral Science Foundation (Grant No. 2020M682113), the Key Research and Development Projects of Shanxi Province, China (Grant No. 201903D121124), and Research Project Supported by Shanxi Scholarship Council of China (Grant No. 2020-112).

Temperature and strain sensitivities of surface and hybrid acoustic wave Brillouin scattering in optical microfibers

Yi Liu(刘毅)1,2,3,4, Yuanqi Gu(顾源琦)1, Yu Ning(宁钰)1, Pengfei Chen(陈鹏飞)1, Yao Yao(姚尧)1, Yajun You(游亚军)5, Wenjun He(贺文君)6, and Xiujian Chou(丑修建)4,†   

  1. 1 Taiyuan University of Technology, Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan 030024, China;
    2 Taiyuan University of Technology, Institute of Optoelectronic Engineering, College of Physics and Optoelectronics, Taiyuan 030024, China;
    3 Strong Digital Technology Co., Ltd. (Thinvent), Nanchang 410000, China;
    4 North University of China, Key Laboratory of Instrumentation Science and Dynamic Measurement Ministry of Education, Taiyuan 030051, China;
    5 North University of China, College of Mechatronics Engineering, Taiyuan 030051, China;
    6 North University of China, Science and Technology on Electronic Test and Measurement Laboratory, School of Instrument and Electronics, Taiyuan 030051, China
  • Received:2021-12-17 Revised:2022-01-30 Accepted:2022-02-10 Online:2022-08-19 Published:2022-09-01
  • Contact: Xiujian Chou E-mail:chouxiujian@nuc.edu.cn
  • Supported by:
    Project supported by the National Science Fund for Distinguished Young Scholars (Grant Nos. 61705157 and 61805167), the National Natural Science Foundation of China (Grant Nos. 61975142 and 11574228), China Postdoctoral Science Foundation (Grant No. 2020M682113), the Key Research and Development Projects of Shanxi Province, China (Grant No. 201903D121124), and Research Project Supported by Shanxi Scholarship Council of China (Grant No. 2020-112).

摘要: Temperature and strain sensitivities of surface acoustic wave (SAW) and hybrid acoustic wave (HAW) Brillouin scattering (BS) in 1 μm-1.3 μm diameter optical microfibers are simulated. In contrast to stimulated Brillouin scattering (SBS) from bulk acoustic wave in standard optical fiber, SAW and HAW BS, due to SAWs and HAWs induced by the coupling of longitudinal and shear waves and propagating along the surface and core of microfiber respectively, facilitate innovative detection in optical microfibers sensing. The highest temperature and strain sensitivities of the hybrid acoustic modes (HAMs) are 1.082 MHz/℃ and 0.0289 MHz/με, respectively, which is suitable for microfiber sensing application of high temperature and strain resolutions. Meanwhile, the temperature and strain sensitivities of the SAMs are less affected by fiber diameter changes, ranging from 0.05 MHz/℃/μ to 0.25 MHz/℃/μ and 1×10-4 MHz/με/μ to 5×10-4 MHz/με/μ, respectively. It can be found that that SAW BS for temperature and strain sensing would put less stress on manufacturing constraints for optical microfibers. Besides, the simultaneous sensing of temperature and strain can be realized by SAW and HAW BS, with temperature and strain errors as low as 0.30 ℃-0.34 ℃ and 14.47 με-16.25 με.

关键词: Brillouin scattering, surface acoustic waves, hybrid acoustic waves, optical microfiber sensing

Abstract: Temperature and strain sensitivities of surface acoustic wave (SAW) and hybrid acoustic wave (HAW) Brillouin scattering (BS) in 1 μm-1.3 μm diameter optical microfibers are simulated. In contrast to stimulated Brillouin scattering (SBS) from bulk acoustic wave in standard optical fiber, SAW and HAW BS, due to SAWs and HAWs induced by the coupling of longitudinal and shear waves and propagating along the surface and core of microfiber respectively, facilitate innovative detection in optical microfibers sensing. The highest temperature and strain sensitivities of the hybrid acoustic modes (HAMs) are 1.082 MHz/℃ and 0.0289 MHz/με, respectively, which is suitable for microfiber sensing application of high temperature and strain resolutions. Meanwhile, the temperature and strain sensitivities of the SAMs are less affected by fiber diameter changes, ranging from 0.05 MHz/℃/μ to 0.25 MHz/℃/μ and 1×10-4 MHz/με/μ to 5×10-4 MHz/με/μ, respectively. It can be found that that SAW BS for temperature and strain sensing would put less stress on manufacturing constraints for optical microfibers. Besides, the simultaneous sensing of temperature and strain can be realized by SAW and HAW BS, with temperature and strain errors as low as 0.30 ℃-0.34 ℃ and 14.47 με-16.25 με.

Key words: Brillouin scattering, surface acoustic waves, hybrid acoustic waves, optical microfiber sensing

中图分类号:  (Stimulated Brillouin and Rayleigh scattering)

  • 42.65.Es
78.35.+c (Brillouin and Rayleigh scattering; other light scattering) 42.65.-k (Nonlinear optics) 42.81.-i (Fiber optics)