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Chinese Optics Letters, Volume. 23, Issue 2, 021204(2025)

Highly sensitive vector bending sensor based on chirped core fiber structure

Tian Tian1, Min Li1, Yiwei Ma1,2、*, Song Li1, Tao Geng1、**, and Libo Yuan3
Author Affiliations
  • 1Key Laboratory of In-Fiber Integrated Optics, Ministry of Education, Harbin Engineering University, Harbin 150001, China
  • 2College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
  • 3Photonics Research Center, Guilin University of Electronics Technology, Guilin 541004, China
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    [1] P. C. Lallana, G. Aldabaldetreku, A. López et al. Sensing applications in aircrafts using polymer optical fibres. Sensors, 21, 3605(2021).

    [2] Y. G. Liu, Y. P. Feng, J. L. Wen et al. Integrated fiber-optic sensor based on inscription of FBG in seven-core fiber for curvature and temperature measurements. Opt. Fiber Technol., 75, 103197(2023).

    [3] M. Shao, J. J. Liang, H. Gao et al. Seven-core fiber based in-fiber Mach-Zehnder interferometer for temperature-immune curvature sensing. Opt. Commun., 528, 128989(2023).

    [4] L. G. Martinez-Ramirez, I. Hernández-Romano, C. Guzmán-Cano et al. Experimental Demonstration to enhance the curvature sensitivity of a fiber Mach-Zehnder interferometer based on a waist-enlarged technique using polymer. Photonics., 11, 262(2024).

    [5] Y. C. Ji, D. Sun, Y. P. Chen et al. A high sensitivity curvature sensor based on microfiber Mach-Zehnder interferometer with tapered seven-core fiber. IEEE Sens. J., 21, 24090(2021).

    [6] S. Hu, S. K. Li, Y. Zhao. One dimensional vector curvature sensor based on 2-core fiber offset structure. Measurement, 193, 110964(2022).

    [7] Y. Wei, T. C. Jiang, C. L. Liu et al. Sawtooth fiber MZ vector bending sensor available for multi parameter measurement. J. Lightwave Technol., 40, 6037(2022).

    [8] B. Li, Y. Liang, Z. Xie et al. Multi-direction bending sensing based on spot pattern demodulation of dual-hole fiber. Chin. Opt. Lett., 21, 122201(2023).

    [9] T. Osuch. Tapered and linearly chirped fiber Bragg gratings with co-directional and counter-directional resultant chirps. Opt. Commun., 366, 194(2016).

    [10] A. Taghipour, F. Janabi-Sharifi, A. Rostami et al. Highly sensitive LPFG-based bending sensor in W-Type optical fiber. International Symposium on Optomechatronic Technologies(2014).

    [11] C. Xia, N. Bai, I. Ozdur et al. Supermodes for optical transmission. Opt. Express., 19, 17(2011).

    [12] Y. Y. Li, Y. W. Ma, T. Tian et al. A highly sensitive curvature sensor based on omega-shaped long-period fiber grating. IEEE Sens. J., 23, 8410(2023).

    [13] J. C. Anderson, T. Binzegger, O. Kahana et al. Dendritic asymmetry cannot account for directional responses of neurons in visual cortex. Nat. Neurosci., 2, 9(1999).

    [14] G. Bawa, I. Kumar, S. M. Tripathi. Simultaneous existence of ultrahigh and ultralow spectral sensitivity for directional couplers. IEEE Sens. Lett., 4, 5001004(2020).

    [15] B. B. Qi, B. J. Su, F. Zhang et al. A compact fiber cascaded structure incorporating hollow core fiber with large inner diameter for simultaneous measurement of curvature and temperature. IEEE Photonics J., 14, 6812208(2022).

    [16] Z. R. Yang, W. H. Yuan, C. Y. Yu. Hollow core Bragg fiber-based sensor for simultaneous measurement of curvature and temperature. Sensors., 21, 7956(2021).

    [17] M. Shao, Z. W. Cao, H. Gao et al. Large measurement-range and low temperature cross-sensitivity optical fiber curvature sensor based on Michelson interferometer. Opt. Fiber Technol., 72, 102990(2022).

    [18] C. Jiang, Y. Q. Liu, C. B. Mou. Polarization-maintaining fiber long-period grating based vector curvature sensor. IEEE Photon. Tech. Lett., 33, 7(2021).

    [19] Y. Wei, L. L. Li, C. L. Liu et al. Research on vector bending SPR sensor based on v-groove fiber. IEEE Sens. J., 22, 11740(2022).

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    Tian Tian, Min Li, Yiwei Ma, Song Li, Tao Geng, Libo Yuan, "Highly sensitive vector bending sensor based on chirped core fiber structure," Chin. Opt. Lett. 23, 021204 (2025)

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    Paper Information

    Category: Instrumentation, Measurement, and Optical Sensing

    Received: Jun. 16, 2024

    Accepted: Aug. 26, 2024

    Published Online: Mar. 11, 2025

    The Author Email: Yiwei Ma (man_oe@hrbeu.edu.cn), Tao Geng (gengtao_hit_oe@126.com)

    DOI:10.3788/COL202523.021204

    CSTR:32184.14.COL202523.021204

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology