[1] [1] Tan X, Li X, Geng Y, et al. Polymer microbubble-based Fabry-Perot fiber interferometer and sensing applications［J］. IEEE Photonics Technology Letters, 2015, 27(19):2035-2038.

[2] [2] Tan Y, Sun L P, Jin L, et al. Microfiber Mach-Zehnder interferometer based on long period grating for sensing applications［J］. Optics Express, 2013, 21(1):154.

[3] [3] Lee S M, Saini S S, Jeong M Y. Simultaneous measurement of refractive index, temperature, and strain using etched-core fiber Bragg grating sensors［J］. IEEE Photonics Technology Letters, 2010, 22(19):1431-1433.

[4] [4] Zhu Z, Liu L, Liu Z, et al. Surface-plasmon-resonance-based optical-fiber temperature sensor with high sensitivity and high figure of merit［J］. Opt Lett, 2017, 42(15):2948-2951.

[5] [5] Wang T, Wang M. Fabry-Pérot fiber sensor for simultaneous measurement of refractive index and temperature based on an in-fiber ellipsoidal cavity［J］. IEEE Photonics Technology Letters, 2012, 24(19):1733-1736.

[6] [6] Lu P, Men L, Sooley K, et al. Tapered fiber Mach-Zehnder interferometer for simultaneous measurement of refractive index and temperature［J］. Applied Physics Letters, 2009, 94:131110.

[7] [7] Geng Y, Li X, Tan X, et al. High-sensitivity Mach-Zehnder interferometric temperature fiber sensor based on a waist-enlarged fusion bitaper［J］. IEEE Sensors Journal, 2011, 11(11):2891-2894.

[8] [8] Xu Y, Lu P, Qin Z, et al. Vibration sensing using a tapered bend-insensitive fiber based Mach-Zehnder interferometer［J］. Optics Express, 2013, 21(3):3031.

[9] [9] Pawar D, Rao C N, Choubey R K, et al. Mach-Zehnder interferometric photonic crystal fiber for low acoustic frequency detections［J］. Applied Physics Letters, 2016, 108(4):19.

[10] [10] Yue W, Yao X, Yuguang Y, et al. High-sensitivity pressure sensor based on fiber Mach-Zehnder interferometer［J］. Measurement Science and Technology, 2017, 28:105102.

[12] [12] Yang J, Yang M, Guan C Y, et al. In-fiber Mach-Zehnder interferometer with piecewise interference spectrum based on hole-assisted dual-core fiber for refractive index sensing［J］. Optics Express, 2018, 26(15):19091-19099.

[13] [13] Jiang L, Yang J, Wang S, et al. Fiber Mach-Zehnder interferometer based on microcavities for high-temperature sensing with high sensitivity［J］. Optics Letters, 2011, 36(19):3753-3755.

[14] [14] Sun X Y, Chu D K, Dong X R, et al. Highly sensitive refractive index fiber inline Mach-Zehnder interferometer fabricated by femtosecond laser micromachining and chemical etching［J］. Optics & Laser Technology, 2016, 77:JOLT_2015_2100.

[15] [15] Jha R, Villatoro J, Badenes G. Ultrastable in reflection photonic crystal fiber modal interferometer for accurate refractive index sensing［J］. Applied Physics Letters, 2008, 93:191106.

[16] [16] Zhu J, Zhang A P, Xia T, et al. Fiber-optic high-temperature sensor based on thin-core fiber modal interferometer［J］. IEEE Sensors Journal, 2010, 10(9):1415-1418.

[17] [17] Jha R, Villatoro J, Badenes G, et al. Refractometry based on a photonic crystal fiber interferometer［J］. Optics Letters, 2009, 34(5):617-619.

[18] [18] Wu D, Zhu T, Chiang K S, et al. All single-mode fiber Mach-Zehnder interferometer based on two peanut-shape structures［J］. Journal of Lightwave Technology, 2012, 30(5):805-810.

[19] [19] Tong Z, Luan P, Cao Y, et al. Dual-parameter optical fiber sensor based on concatenated down-taper and multimode fiber［J］. Optics Communications, 2016, 358:77-81.

[20] [20] Xing R, Dong C, Wang Z, et al. Simultaneous strain and temperature sensor based on polarization maintaining fiber and multimode fiber［J］. Optics & Laser Technology, 2018, 102:17-21.