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<p>A flexible microfiber sensor for pressure and temperature dual parameter sensing is proposed in this paper. The optical fiber is composed of a balloon-shaped silicon dioxide core and polymethyl methacrylate (PMMA) cladding doped with CdZnSe/ZnSe/ZnS quantum dots. It uses flexible polydimethylsiloxane (PDMS) as the packaging layer and has a high softness. The experimental results show that the pressure sensitivity of the sensor can reach 0.249&#xa0;nm/mN. The cross-sensitivity problem is solved by discussing the interference of temperature on both the transmission spectrum and fluorescence wavelength simultaneously. This has broad development prospects in the fields of micro force sensing and micro machinery.</p>

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Flexible optical sensor based on CdZnSe/ZnSe/ZnS doped PMMA fiber for simultaneous measurement of pressure and temperature

  • 期刊论文

  • 发表日期：

    2026年1月20日

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  • Xiangju Qin,
  • Hao Sun,
  • Shijun Li,
  • Fangfei Shi,
  • Hailong Fan,
  • Xinxin Wang,
  • Lingxin Kong

摘要

A flexible microfiber sensor for pressure and temperature dual parameter sensing is proposed in this paper. The optical fiber is composed of a balloon-shaped silicon dioxide core and polymethyl methacrylate (PMMA) cladding doped with CdZnSe/ZnSe/ZnS quantum dots. It uses flexible polydimethylsiloxane (PDMS) as the packaging layer and has a high softness. The experimental results show that the pressure sensitivity of the sensor can reach 0.249 nm/mN. The cross-sensitivity problem is solved by discussing the interference of temperature on both the transmission spectrum and fluorescence wavelength simultaneously. This has broad development prospects in the fields of micro force sensing and micro machinery.