[1] [1] MOKHTA R, OWEN S, KWASN Y, et al. Fiber-optic strain sensor system with temperature compensation for arch bridge condition monitoring［J］.IEEE Sensor Journal, 2012, 12(5): 1470-1476.

[2] [2] LI L T, ZHANG D S , LIU H, et al. Design of an enhanced sensitivity FBG strain sensor and application in highway bridge engineering［J］. Photonic Sensors, 2014, 4(2): 162-167

[3] [3] GONG Y, RAO Y J, GUO Y, et al. Temperature insensitive micro fabry-perot strain sensor fabricated by chemically etching Er-doped fiber［J］. IEEE Photonics Technology Letters, 2009, 21(22):1725-1727.

[4] [4] LI C, XIAO J, GUO T T, et al. Interference characteristics in a Fabry-Perot cavity with graphene membrane for optical fiber pressure sensors［J］. Microsystem Technologies, 2015, 21(11): 2297 -2306.

[5] [5] YU Y Q, CHEN X, HUANG Q D, et al. Enhancing the pressure sensitivity of a Fabry-Perot interferometer using a simplified hollow-core photonic crystal fiber with a microchannel［J］. Applied Physics B, 2015,120(3):461-467.

[6] [6] TIAN Z B, SCOTT S H Y. In-line abrupt taper optical fiber Mach-Zehnder interferometric strain sensor［J］.IEEE Photonics Technology Letters, 2009, 21(3): 161-163.

[7] [7] GONG H P, CHAN C C, CHEN L H, et al. Strain sensor realized by using low-birefringence photonic-crystal-fiber-based sagnac loop［J］. IEEE Photonics Technology Letters, 2010, 22(16):1238-1240.

[8] [8] FU H Y, TAM H Y, SHAO L Y, et al. Pressure sensor realized with polarization-maintaining photonic crystal fiber-based Sagnac interferometer［J］. Applied Optics, 2008, 47(15): 2835-2839.

[9] [9] LIU Z Y , WU C, VINCENT T, et al. Ultrahigh birefringence index-guiding photonic crystal fiber and its application for pressure and temperature discrimination［J］. Optics Letters, 2013, 38(9): 1385-1387.

[10] [10] THOMAS G, GEERT L, ELI V, et al. Transversal load sensing with fiber Bragg gratings in microstructured optical fibers［J］. IEEE Photonics Technology Letters, 2009, 21(1):6-8.

[11] [11] ZHAO Chun-liu. Optical fiber sensors based on long-period gratings in photonic crystal fibers［J］.Journal of Optoelectronics·Laser, 2011, 22(1):9-12.

[12] [12] HOU Shang-lin, HAN Jia-wei, ZHANG Rui-rui, et al. Study on sensing characteristics of tunable long-period gratings imprinted by mechanical pressure in photonic crystal fiber［J］. Journal of Optoelectronics·Laser, 2010, 21(1):5-7.

[13] [13] WANG Y P, HUANG X Q, WANG Y. Temperature insensitive transverse load sensing with improved accuracy using stress induced birefringence effects of fiber Bragg grating［J］. Optik, 2011,122(21):1914-1917.

[14] [14] FU Xing-hu, XIE Hai-yang, WANG Liu-liu, et al. Pressure sensor based on cascading single mode fiber with multimode fiber［J］. Acta Photonica Sinica, 2015, 4(44): 0406005.

[15] [15] SUN Ting-ting, PEI Shi-xin, LI Jin-hua. A transverse strain sensor based on tilted fiber Bragg grating.［J］. Journal of Optoelectronics·Laser, 2015, 26(10): 1854-1859.

[16] [16] LI L C, LI X, XIE Z H, et al. Simultaneous measurement of refractive index and temperature using thinned fiber based Mach-Zehnder interferometer［J］. Optics Communications, 2012, 285(19):3945-3949.

[17] [17] LU Y F, SHEN C Y, ZHONG C, et al. Refractive index and temperature sensor based on double-pass M-Z interferometer with an FBG［J］. IEEE Photonics Technology Letters, 2014, 26(11): 1124-1127.

[18] [18] YU S W, PEI L, LIU C, et al. Simultaneous strain and temperature measurement using a no-core fiber-based modal interferometer with embedded fiber Bragg grating［J］. Optical Engineering, 2014,53(8):1-4.