Radiation-Resistant Optical Fiber Fabry-Perot Interferometer Used for High-Temperature Sensing

Lyu, Dajuan; Peng, Jue; Huang, Qing; Zheng, Weitao; Xiong, Liangming; Yang, Minghong

doi:10.1109/jsen.2020.2972702

Cited by 21 publications

(7 citation statements)

References 22 publications

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“…This sensitivity value was acceptable, but due to the existence of eMCF, the cost of fiber sensor was higher, the processing was more complex, and it was more sensitive to external irrelevant variables [8]. The F-P fiber sensor consisted of SMF and SCF had the temperature sensitivity of 12.51 pm • C −1 and can be used in the temperature of 50 • C-800 • C [24], but the temperature sensitivity was much lower than other F-P sensors [4,23,31]. At the same time, PDMS was widely used in fiber sensors based on the MZI.…”

Section: Experiments and Discussionmentioning

confidence: 99%

“…In recent decades, a variety of fiber sensors based on Mach-Zehnder Interference [6][7][8][9][10][11][12][13][14][15][16] (MZI), fiber Bragg grating [17][18][19][20][21][22] (FBG), Fabry-Pérot [23][24][25][26] (F-P), Sagnac [27], surface plasmon resonance [28] (SPR) and Michelson [29] have been exhibited. Some products have been flexibly applied in various places out of the laboratory.…”

Section: Introductionmentioning

confidence: 99%

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Temperature fiber sensor without cross sensitivity based on the multi-thin-no-thin-multi fiber coated with PDMS

Li¹,

Liu²,

Qu³

et al. 2021

J. Phys. D: Appl. Phys.

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A novel temperature fiber sensor based on the multi-thin-no-thin-multi fiber (MTNTM-F) with Mach-Zehnder interference was presented. By comparing the interference spectra of the multi-thin-multi fiber and MTNTM-F, the MTNTM-F with more available dips and greater extinction ratio was selected. By simulating the energy distribution in the fiber, it was proved that there was a lot of energy in the cladding, which was beneficial to the interaction between the light and the external material. In order to improve the temperature sensitivity of the sensor, polydimethylsiloxane with large thermo optic coefficient and thermal expansion coefficient was selected to coat the fiber. Identical temperature sensing experiments were performed for untreated and coated fibers. The temperature sensitivity changed from 25.38 pm °C−1 to 65.24 pm °C−1, which was a 2.56 times improvement, and an ideal temperature stability was demonstrated. At the same time, an anti-turbulence adjunct experiment was conducted to investigate the ability of the sensor to avoid turbulence cross sensing.

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Section: Experiments and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Temperature fiber sensor without cross sensitivity based on the multi-thin-no-thin-multi fiber coated with PDMS

Li¹,

Liu²,

Qu³

et al. 2021

J. Phys. D: Appl. Phys.

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“…As the cavity length can be altered by environmental factors, such as temperature or strain, the Fabry-Perot interferometer is suitable for use as a fiber sensor. 94,95 Sagnac interferometers are based on the Sagnac effect, which is the phase shift of light propagating in a rotating reference frame. This interferometer splits a light beam from a source into two beams that travel in opposite directions around a closed loop, typically a fiber optic coil that maintains polarization.…”

Section: Interferometersmentioning

confidence: 99%

The role of optical fiber sensors in the new generation of healthcare devices: a review

Leal-Junior,

Silva,

Macedo

et al. 2024

Sens. Diagn.

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“…[8][9][10][11][12][13][14][15] Optical fiber FPI is also widely used because of its simple structure, low cross-sensitivity, and small sensor head. 16,17 To achieve high-temperature monitoring in a spatially limited environment, fiber in-line FPIs based on in-fiber reflection mirrors, inner air-cavity, microchannels, and splicing different types of fibers have been adopted, [18][19][20][21][22][23][24][25] Deng et al, reported a high-temperature sensing device based on multiple reflection mirrors inscribed in an optical fiber by femtosecond laser, the temperature sensitivity of the device obtained was 10.15 and 16.92 pm/°C, within the temperature region between 100°C and 400°C, and between 400°C and 1100°C, respectively. 19 Zhang et al, proposed an optical fiber probe based on a three-beam Fabry-Perot interferometer (FPI) for temperature and RI measurement, in the range of 30-40°C, the average temperature sensitivity obtained was 8.97 pm/°C.…”

Section: Introductionmentioning

confidence: 99%

Ultracompact optical fiber high‐temperature sensor based on the angled fiber end face

Wang

Lan

2023

Micro & Optical Tech Letters

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An ultracompact optical fiber Fabry–Perot interferometric sensor is proposed and demonstrated for high‐temperature measurement. The device is simply a section of single‐mode fiber with angled end face of 45°, the reflected light from the angled fiber end face is directed sequentially to the fiber core–cladding and cladding–air interfaces, respectively, and reflected back, and finally returned to the fiber core after being reflected by the angled fiber end face again. As a result, a Fabry–Perot interferometer is constructed. Because of the thermal‐expansion and thermal‐optical effect of the fiber material, the optical path difference between the core–cladding and cladding–air surfaces is changed with temperature, hence the device is well suitable for temperature measurement. In particular, the fiber device has good high‐temperature sustainability up to 1100°C, which makes it attractive for high‐temperature measurement in a narrow or hard‐to‐reach spatial environment.

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Radiation-Resistant Optical Fiber Fabry-Perot Interferometer Used for High-Temperature Sensing

Cited by 21 publications

References 22 publications

Temperature fiber sensor without cross sensitivity based on the multi-thin-no-thin-multi fiber coated with PDMS

Temperature fiber sensor without cross sensitivity based on the multi-thin-no-thin-multi fiber coated with PDMS

The role of optical fiber sensors in the new generation of healthcare devices: a review

Ultracompact optical fiber high‐temperature sensor based on the angled fiber end face

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