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Laser & Optoelectronics Progress, Volume. 60, Issue 11, 1106026(2023)

Optical Fiber Seawater Temperature and Salinity Sensor Based on Surface Plasmon Resonance

Ruijie Tong1,2, Yu Wang1, Bin Xing1, and Yong Zhao1,2、*
Author Affiliations
  • 1College of Information Science and Engineering, Northeastern University, Shenyang 110004, Liaoning, China
  • 2Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Qinhuangdao 066004, Hebei, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (6)
    Equations (7)
    References (18)
    Cited By (4)
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    Figures & Tables(6)
    Optical fiber sensor probe with double SPR effect structure

    Fig. 1. Optical fiber sensor probe with double SPR effect structure

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    Experimental system. (a) Halogen light source; (b) marine spectrometer; (c) computer; (d) thermostat; (e) sensing probe

    Fig. 2. Experimental system. (a) Halogen light source; (b) marine spectrometer; (c) computer; (d) thermostat; (e) sensing probe

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    Seawater temperature experiments. (a) Experimental spectrograms; (b) linear fitting diagram

    Fig. 3. Seawater temperature experiments. (a) Experimental spectrograms; (b) linear fitting diagram

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    Seawater salinity experiments. (a) Experimental spectrograms; (b) linear fitting diagram

    Fig. 4. Seawater salinity experiments. (a) Experimental spectrograms; (b) linear fitting diagram

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    Stability testing. (a) Absorption spectrum stability change; (b) changes in resonance peak wavelength within 120 min

    Fig. 5. Stability testing. (a) Absorption spectrum stability change; (b) changes in resonance peak wavelength within 120 min

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    • Table 1. Sensor performance comparison

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      Table 1. Sensor performance comparison

      CategorySensing theoryRIU Sensitivity /（pm/RIU）Temperature sensitivity /（pm/℃）Reference
      Connection in seriesSagnac+Interferometer2185601700［15］
      Connection in seriesFPI+SPR2565400394.3［16］
      Connection in seriesLPFG+MZI165040255.52［17］
      Connection in seriesFBG+FBG103009.94［18］
      In parallelSPR+SPR2369.5182021This paper
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    Ruijie Tong, Yu Wang, Bin Xing, Yong Zhao. Optical Fiber Seawater Temperature and Salinity Sensor Based on Surface Plasmon Resonance[J]. Laser & Optoelectronics Progress, 2023, 60(11): 1106026

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Feb. 28, 2023

    Accepted: Apr. 28, 2023

    Published Online: Jun. 5, 2023

    The Author Email: Yong Zhao (zhaoyong@ise.neu.edu.cn)

    DOI:10.3788/LOP230742

    Topics

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