[1] Shi J, Wang Y Y, Xu D G et al. Temperature sensor based on fiber ring laser with Sagnac loop[J]. IEEE Photonics Technology Letters, 28, 794-797(2016).
[2] Reyes-Vera E. Cordeiro C M B, Torres P. Highly sensitive temperature sensor using a Sagnac loop interferometer based on a side-hole photonic crystal fiber filled with metal[J]. Applied Optics, 56, 156-162(2017).
[3] Tian Z B. Yam S S H. In-line abrupt taper optical fiber Mach-Zehnder interferometric strain sensor[J]. IEEE Photonics Technology Letters, 21, 161-163(2009).
[4] Dong X R, Du H F, Sun X Y et al. A novel strain sensor with large measurement range based on all fiber Mach-Zehnder interferometer[J]. Sensors, 18, 1549(2018).
[5] Zhao Y, Cai L, Li X G. Temperature-insensitive optical fiber curvature sensor based on SMF-MMF-TCSMF-MMF-SMF structure[J]. IEEE Transactions on Instrumentation and Measurement, 66, 141-147(2017).
[6] Tian K, Xin Y F, Yang W L et al. A curvature sensor based on twisted single-mode-multimode-single-mode hybrid optical fiber structure[J]. Journal of Lightwave Technology, 35, 1725-1731(2017).
[7] Zhuang W, Niu H S, Dong M L et al. A curvature sensor based on single mode-no-core-twisted single mode fiber structure[J]. Optical Fiber Technology, 48, 225-228(2019).
[8] Tan F Z, Liu Z Y, Tu J J et al. Torsion sensor based on inter-core mode coupling in seven-core fiber[J]. Optics Express, 26, 19835-19844(2018).
[9] Suntsov S, Rüter C E, Kip D. Dual parameter fiber-integrated sensor for refractive index and temperature measurement based on Fabry-Perot micro-resonators[J]. Applied Optics, 58, 2076-2080(2019).
[10] Li C, Ning T G, Zhang C et al. Liquid level measurement based on a no-core fiber with temperature compensation using a fiber Bragg grating[J]. Sensors and Actuators A: Physical, 245, 49-53(2016).
[11] Domingues M F, Rodriguez C A, Martins J et al. Cost-effective optical fiber pressure sensor based on intrinsic Fabry-Perot interferometric micro-cavities[J]. Optical Fiber Technology, 42, 56-62(2018).
[12] Barrera D, Madrigal J, Sales S. Long period gratings in multicore optical fibers for directional curvature sensor implementation[J]. Journal of Lightwave Technology, 36, 1063-1068(2018).
[13] 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, 57, 1671-1678(2018).
[15] Liu L, Wu G Q, Qi S K et al. High sensitive fiber-optic sensor for curvature and temperature detecting simultaneously[J]. Transducer and Microsystem Technologies, 38, 64-66, 69(2019).
[18] Fu G W, Li Y P, Fu X H et al. Temperature insensitive curvature sensor based on cascading photonic crystal fiber[J]. Optical Fiber Technology, 41, 64-68(2018).
[20] Sójka L, Pajewski L. liwa M, et al. Multicore microstructured optical fibre for sensing applications[J]. Optics Communications, 344, 71-76(2015).
[21] Wang X L, Chen D R, Li H T et al. In-line Mach-Zehnder interferometric sensor based on a seven-core optical fiber[J]. IEEE Sensors Journal, 17, 100-104(2017).
[22] Ni W J, Lu P, Zhang J S et al. Single hole twin eccentric core fiber sensor based on anti-resonant effect combined with inline Mach-Zehnder interferometer[J]. Optics Express, 25, 12372-12380(2017).
[23] Wang S, Zhang Y X, Zhang W G et al. Two-dimensional bending vector sensor based on the multimode-3-core-multimode fiber structure[J]. IEEE Photonics Technology Letters, 29, 822-825(2017).
[24] Li H, Li H B, Meng F Y et al. All-fiber MZI sensor based on seven-core fiber and fiber ball symmetrical structure[J]. Optics and Lasers in Engineering, 112, 1-6(2019).
[25] Zhong C, Shen C Y, You Y et al. A polarization-maintaining fiber loop mirror based sensor for liquid refractive index absolute measurement[J]. Sensors and Actuators B: Chemical, 168, 360-364(2012).
[26] Zhou S, Huang B, Shu X W. A multi-core fiber based interferometer for high temperature sensing[J]. Measurement Science and Technology, 28, 045107(2017).
[27] Wu Y, Pei L, Jin W X et al. Highly sensitive curvature sensor based on asymmetrical twin core fiber and multimode fiber[J]. Optics & Laser Technology, 92, 74-79(2017).