Semiconductor Optoelectronics, Volume. 44, Issue 4, 515(2024)

Research on the Strain Sensing Characteristics of Single Mode-Hollow Core-Single Mode Optical Fiber Microstructure

WANG Lei1,2, ZHANG Yumin1,2, YAO Jifeng3, LUO Fei1,2, and ZHU Lianqing1,2
Author Affiliations
  • 1Beijing Engineering Research Center of Optoelectronic Information and Instruments, Beijing Information Science & Technol. University, Beijing 100192, CHN
  • 2Beijing Laboratory of Optical Fiber Sensing and System, Beijing Information Science & Technol. University, Beijing 100016, CHN
  • 3Guangzhou Nansha Intell. Photon. Sens. Research Institute, Guangzhou 511462, CHN
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    A single mode-hollow core-single mode (SHS) fiber microstructure strain sensor was proposed. A wavelength strain relationship model was established using the beam propagation method, and the strain and temperature characteristics of the SHS were experimentally studied. The experimental results showed that the tensile strain sensitivity in the range of 0~340 με and compressive strain sensitivity in the range of -340~0 με were as high as -4.19 pm/με and -4.26 pm/με, respectively, with linearity values of 0.997 1 and 0.998 1, respectively. In the range of 20~70 ℃, the temperature sensitivity was 9.6 pm/℃, and the linearity reached 0.990 9. This sensor is simple to make and has a high strain sensitivity.

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    WANG Lei, ZHANG Yumin, YAO Jifeng, LUO Fei, ZHU Lianqing. Research on the Strain Sensing Characteristics of Single Mode-Hollow Core-Single Mode Optical Fiber Microstructure[J]. Semiconductor Optoelectronics, 2024, 44(4): 515

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    Paper Information

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    Received: Mar. 18, 2024

    Accepted: Feb. 13, 2025

    Published Online: Feb. 13, 2025

    The Author Email:

    DOI:10.16818/j.issn1001-5868.2024031801

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