Air-silica core microstructured optical fiber-based SPR sensor for temperature and refractive index measurement

Zhang, Wandi; Luan, Nannan

doi:10.1016/j.rinp.2023.106976

Cited by 8 publications

(4 citation statements)

References 43 publications

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“…To concurrently measure strain and temperature, we utilize the obtained strain and temperature sensitivities and apply them in Equation (6). As shown in Figure 8b, the reflective dip wavelength of PSFBG shifts toward a longer wavelength when temperature rises.…”

Section: Simultaneous Measurement Of Strain and Temperaturementioning

confidence: 99%

“…To concurrently measure strain and temperature, we utilize the obtained strain and temperature sensitivities and apply them in Equation (6).…”

Section: Simultaneous Measurement Of Strain and Temperaturementioning

confidence: 99%

“…To concurrently measure strain and temperature, we utilize the obtained strain and temperature sensitivities and apply them in Equation (6). (7) Hence, in accordance with Equation (7), by measuring the reflected dip of PSFBG and the interference dip of FPI, it is possible to simultaneously determine both strain and temperature.…”

Section: Simultaneous Measurement Of Strain and Temperaturementioning

confidence: 99%

“…In order to design sensors with low complexity, simple structures, and low cost, achieving the measurement of multiple physical quantities has been identified as a crucial research focus in the field of optical fiber sensing. The cross-sensitivity is a key issue for a fiber sensor used in multi-parameter sensing [ 4 , 5 , 6 ]. The fiber Bragg gratings (FBGs) are sensitive to temperature and strain [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

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Air Gap Fiber Bragg Grating for Simultaneous Strain and Temperature Measurement

Yang,

Zhu,

et al. 2024

Micromachines

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We propose an air gap fiber Bragg grating (g-FBG) sensor that can measure strain and temperature simultaneously. The sensor is made by aligning two fiber Bragg gratings (FBGs), and an air gap exists between these two sub-gratings. This sensor’s architecture allows it to form a spectrum with phase-shifted fiber Bragg grating (PSFBG) spectroscopy and Fabry–Perot interference (FPI) spectroscopy. Since the sensitivity of PSFBG and FPI spectra is different for strain and temperature, it is possible to measure both strain and temperature by measuring one of the reflected dips of PSFBG and the interference dip of FPI. The experimental results show that the strain sensitivity is about 11.95 pm/με via the dip wavelength detection of FPI, and the temperature sensitivity is about 9.64 pm/°C via the dip wavelength detection of PSFBG. The g-FBG sensor demonstrates a resolution of approximately ±3.7 με within the strain range of 0 to 1000 με and about ±0.6 °C within the temperature range of 25 °C to 120 °C. The proposed g-FBG sensor, characterized by its simple structure, compact size, and cost-effectiveness, exhibits significant potential in the field of multi-parameter measurements.

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Section: Simultaneous Measurement Of Strain and Temperaturementioning

confidence: 99%

“…To concurrently measure strain and temperature, we utilize the obtained strain and temperature sensitivities and apply them in Equation (6).…”

Section: Simultaneous Measurement Of Strain and Temperaturementioning

confidence: 99%