[1] António B, Joan C, Sergi V[J]. Sensors, 16, 748(2016).

[2] Bao X Y, Chen L[J]. Sensors, 11, 4152(2011).

[3] Thévenaz L[J]. Front. Optoelectron. China, 3, 13(2010).

[4] Kurashima T, Horiguchi T, Tateda M[J]. Opt. Lett., 15, 1038(1990).

[5] Hu J H, Zhang X P, Yao Y G, Zhao X D[J]. Opt. Express, 21, 145(2013).

[6] Kim Y H, Song K Y[J]. Opt. Express, 25, 14098(2017).

[7] Soto M A, Bolognini G, Pasquale F D[J]. Opt. Lett., 36, 232(2011).

[8] Li W H, Bao X Y, Li Y, Chen L[J]. Opt. Express, 16, 21616(2008).

[9] Brown A W[J]. J. Lightw. Technol., 25, 381(2007).

[10] Hotate K, Arai H, Song K Y[J]. Sice J. Control Measur. Syst. Integrat., 1, 271(2008).

[11] Hotate K, Hasegawa T[J]. IEICE Trans. Electron., 83, 405(2000).

[12] Ryu G, Kim G T, Song K Y, Lee S B, Lee K[J]. J. Lightw. Technol., 35, 5311(2017).

[13] Zadok A, Antman Y, Primerov N, Denisov A, Sancho J, Thévenaz L[J]. Laser Photon. Rev., 6, L1(2012).

[14] Cohen R, London Y, Antman Y, Zadok A[J]. Opt. Express, 22, 12070(2014).

[15] Ji Y N, Zhang M J, Wang Y C, Wang P, Wang A B, Wu Y, Xu H, Zhang Y N[J]. Int. J. Bifurcat. Chaos, 24, 1450032(2014).

[16] Zhang J Z, Zhang M T, Zhang M J, Liu Y, Feng C K, Wang Y H, Wang Y C[J]. Opt. Lett., 43, 1722(2018).

[17] Zhang J Z, Feng C K, Zhang M J, Liu Y, Wu C Y, Wang Y H[J]. Opt. Express, 26, 6962(2018).

[18] Zhang J Z, Wang Y H, Zhang M J, Zhang Q, Li M W, Wu C Y, Qiao L J, Wang Y C[J]. Opt. Express, 26, 17597(2018).

[19] Jeong J H, Lee K, Song K Y, Jeong J M, Lee S B[J]. Opt. Express, 20, 27094(2012).

[20] Wang A B 2014 Ph. D. Dissertation (Taiyuan: Taiyuan University of Technology) (in Chinese)

[21] Zhang J Z, Wang A B, Wang J F, Wang Y C[J]. Opt. Express, 17, 6357(2009).

[22] Zhang M J, Liu H, Zhang J Z, Liu Y, Liu R X[J]. IEEE Photon. J., 9, 1943(2017).

[23] Parker T, Farhadiroushan M, Handerek V A 1997 Proceedings of IEE Colloquium on Optical Techniques for Smart Structures and Structural Monitoring London, UK, February 17, 1997 p1