中国物理B ›› 2021, Vol. 30 ›› Issue (10): 100701-100701.doi: 10.1088/1674-1056/ac0426

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Cascaded dual-channel fiber SPR temperature sensor based on liquid and solid encapsulations

Yong Wei(魏勇), Lingling Li(李玲玲), Chunlan Liu(刘春兰)†, Jiangxi Hu(胡江西), Yudong Su(苏于东), Ping Wu(吴萍), and Xiaoling Zhao(赵晓玲)   

  1. College of Electronic&Information Engineering, Chongqing Three Gorges University, Chongqing 404100, China
  • 收稿日期:2021-03-18 修回日期:2021-05-19 接受日期:2021-05-24 出版日期:2021-09-17 发布日期:2021-09-26
  • 通讯作者: Chunlan Liu E-mail:lclliuchunlan@163.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61705025), the Natural Science Foundation of Heilongjiang Province, China (Grant No. F2018027), partially supported by Chongqing Natural Science Foundation (Grant Nos. cstc2019jcyj-msxmX0431 and cstc2018jcyjAX0817), the Science and Technology Project Affiliated to the Education Department of Chongqing Municipality (Grant Nos. KJQN201801217, KJQN201901226, and KJ1710247), Chongqing Key Laboratory of Geological Environment Monitoring and Disaster Early-Warning in Three Gorges Reservoir Area (Grant Nos. ZD2020A0103 and ZD2020A0102), and the Fundamental Research Funds for Chongqing Three Gorges University of China (Grant No. 19ZDPY08).

Cascaded dual-channel fiber SPR temperature sensor based on liquid and solid encapsulations

Yong Wei(魏勇), Lingling Li(李玲玲), Chunlan Liu(刘春兰)†, Jiangxi Hu(胡江西), Yudong Su(苏于东), Ping Wu(吴萍), and Xiaoling Zhao(赵晓玲)   

  1. College of Electronic&Information Engineering, Chongqing Three Gorges University, Chongqing 404100, China
  • Received:2021-03-18 Revised:2021-05-19 Accepted:2021-05-24 Online:2021-09-17 Published:2021-09-26
  • Contact: Chunlan Liu E-mail:lclliuchunlan@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61705025), the Natural Science Foundation of Heilongjiang Province, China (Grant No. F2018027), partially supported by Chongqing Natural Science Foundation (Grant Nos. cstc2019jcyj-msxmX0431 and cstc2018jcyjAX0817), the Science and Technology Project Affiliated to the Education Department of Chongqing Municipality (Grant Nos. KJQN201801217, KJQN201901226, and KJ1710247), Chongqing Key Laboratory of Geological Environment Monitoring and Disaster Early-Warning in Three Gorges Reservoir Area (Grant Nos. ZD2020A0103 and ZD2020A0102), and the Fundamental Research Funds for Chongqing Three Gorges University of China (Grant No. 19ZDPY08).

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摘要： In order to control the working wavelength range of the fiber surface plasmon resonance (SPR) temperature sensor and realize the wavelength division multiplexing type multi-channel fiber SPR temperature sensor, by comprehensively investigating the influence of liquids with different thermal-optical coefficients and solid packaging materials on the performance of fiber SPR temperature sensor, a dual-channel fiber SPR temperature sensor based on liquid-solid cascade encapsulation was designed and fabricated. The liquid temperature sensing stage encapsulated in capillary worked in 616.03 nm-639.05 nm band, the solid sensing stage coated with pouring sealant worked in 719.37 nm-825.27 nm band, and the two stages were cascaded to form a fiber dual-channel temperature sensor. The testing results indicated that when the temperature range was 35 ℃-95 ℃, the sensitivity of two-stage temperature detection was -0.384 nm/℃ and -1.765 nm/℃ respectively. The proposed fiber sensor has simple fabrication and excellent performance which can be widely used in various fields of dual-channel temperature measurement and temperature compensation.

关键词: surface plasmon resonance (SPR), temperature sensor, liquid-solid cascade, dual channel

Abstract: In order to control the working wavelength range of the fiber surface plasmon resonance (SPR) temperature sensor and realize the wavelength division multiplexing type multi-channel fiber SPR temperature sensor, by comprehensively investigating the influence of liquids with different thermal-optical coefficients and solid packaging materials on the performance of fiber SPR temperature sensor, a dual-channel fiber SPR temperature sensor based on liquid-solid cascade encapsulation was designed and fabricated. The liquid temperature sensing stage encapsulated in capillary worked in 616.03 nm-639.05 nm band, the solid sensing stage coated with pouring sealant worked in 719.37 nm-825.27 nm band, and the two stages were cascaded to form a fiber dual-channel temperature sensor. The testing results indicated that when the temperature range was 35 ℃-95 ℃, the sensitivity of two-stage temperature detection was -0.384 nm/℃ and -1.765 nm/℃ respectively. The proposed fiber sensor has simple fabrication and excellent performance which can be widely used in various fields of dual-channel temperature measurement and temperature compensation.

Key words: surface plasmon resonance (SPR), temperature sensor, liquid-solid cascade, dual channel

中图分类号:  (Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing)

  • 07.07.Df
42.81.Cn (Fiber testing and measurement of fiber parameters) 71.45.Gm (Exchange, correlation, dielectric and magnetic response functions, plasmons)