Abstract
An all-fiber temperature and curvature sensor based on Mach-Zehnder interferometer (MZI) was proposed. The MZI was a sandwich structure which is composed of ring-core fiber (RCF), no-core fiber (NCF) and single-mode fiber (SMF). The temperature and curvature can be demodulated by the wavelength shift and the intensity variation of the dips respectively in the transmission spectrum. The measurement results show that the sensitivity of curvature is −7.88 dBm/m−1 in the range from 3.0 m−1 to 4.2 m−1 and the sensitivity of temperature is 53.5 pm/°C in the range from 60 °C to 200 °C. In addition, the cascaded FBG in the proposed structure, also sensitive to temperature, was used to monitor the fluctuation of temperature. The compact structure, the real-time temperature and the high curvature sensitivity make the sensor have the potential in the field of construction health monitoring and mining safety production.
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ZHAO R, LIU H, SHU X. Femtosecond laser-inscribed off-axis high-order mode long-period grating for independent sensing of curvature and temperature[J]. Optics express, 2022, 30: 37697–37710.
PEREIRA D, BIERLICH J, KOBELKE J, et al. Simultaneous measurement of strain, curvature, and temperature using a hollow square core fiber[J]. Optics & laser technology, 2022, 156: 108540.
YUAN W, ZHAO Q, LI L, et al. Simultaneous measurement of temperature and curvature using ring-core fiber-based Mach-Zehnder interferometer[J]. Optics express, 2021, 29: 17915–17925.
JIANG B, BAI Z, WANG C, et al. In-line Mach-Zehnder interferometer with D-shaped fiber grating for temperature-discriminated directional curvature measurement[J]. Journal of lightwave technology, 2018, 36(3): 742–747.
CHEN F Y, LI X Y, WANG R H, et al. Two-dimensional vector accelerometer based on orthogonal Bragg gratings inscribed in a standard single-mode fiber cladding[J]. Optics letters, 2021, 46(12): 2992–2995.
LIU Z M, ZHENG D, MADRIGAL J, et al. Temperature-insensitive curvature sensor based on Bragg gratings written in strongly coupled multicore fiber[J]. Optics letters, 2021, 46(16): 3933–3936.
JIN X R, XIANG Z H, LU C P, et al. Highly sensitive vector bending sensor based on an embedded multimode D-shaped LPFG[J]. Optics letters, 2021, 29(15): 22813–22822.
XU M J, LIU J X, ABBAS L G, et al. High-sensitivity two-axis vector bending sensor based on side-grooved long period grating in eccentric core fiber[J]. Optics and laser technology, 2022, 153: 108218.
ZHAO Y H, WANG C L, YIN G L, et al. Simultaneous directional curvature and temperature sensor based on a tilted few-mode fiber Bragg grating[J]. Applied optics, 2018, 57(7): 1671–1678.
BARRERA D, MADRIGAL J, SALES S. Tilted fiber Bragg gratings in multicore optical fibers for optical sensing[J]. Optics letters, 2017, 42(7): 1460–1463.
DE M, GANGOPADHYAY T K, SINGH V K. Prospect of photonic crystal fiber as physical sensor: an overview[J]. Sensors, 2019, 19(3): 1–27.
FERREIRA M S, BIERLICH J, KOBELKE J, et al. Negative curvature hollow core fiber sensor for the measurement of strain and temperature[J]. Optics express, 2021, 29(4): 5808–5818.
TANG Z J, LOU S Q, WANG X, et al. High-performance bending vector and strain sensor using a dual-tapered photonic crystal fiber Mach-Zehnder interferometer[J]. IEEE sensor journal, 2019, 19(11): 4062–4068.
MARRUJO-GARCIA S, HERNANDEZ-ROMANO I, TORRES-CISNEROS M, et al. Temperature-independent curvature sensor based on in-fiber Mach-Zehnder interferometer using hollow-core fiber[J]. Journal of lightwave technology, 2020, 38(15): 1.
ZHU C, ZHAO Y, CHEN M, et al. Simultaneous measurement of directional torsion and temperature by using a DC-sampled helical long-period fiber grating[J]. Optics & laser technology, 2021, 142: 107171.
HSU J, ZHENG W, CHEN J, et al. Temperature fiber sensors based on Mach-Zehnder interferometer with sturdy structure[J]. IEEE sensors journal, 2015, 15(12): 6995–7000.
SHAO M, QIAO X, FU H, et al. A Mach-Zehnder interferometric humidity sensor based on waist-enlarged tapers[J]. Optics and lasers in engineering, 2014, 52: 86–90.
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This work has been jointly supported by the National Natural Science Foundation of China (No.62175055), and the Natural Science Foundation of Handan University (No.XZ2022408).
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Jia, S., Yang, K., Li, G. et al. Properties of sandwich-structure based Mach-Zehnder interferometer cascaded with FBG response to dual-parameter sensing. Optoelectron. Lett. 19, 705–709 (2023). https://doi.org/10.1007/s11801-023-3008-y
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DOI: https://doi.org/10.1007/s11801-023-3008-y