[1] N. Takahashi, K. Yoshimura, S. Takahashi, and K, Imamura, Ultrasonics, 38, 581 (2000).
[2] A. I. Azmi, I. Leung, X. B. Chen, S. L. Zhou, Q. Zhu, K. Gao, P. Childs, and G. D. Peng, Photonic Sensors1, 3, 210 (2011).
[3] M. D. Todd, M. Seaver, and F. Bucholtz, Electr. Lett., 38, 784 (2002).
[4] Z. F. Wang, H. Luo, S. D. Xiong, M. Ni, and Y. Ming, Acta Optica Sinica, 27, 654 (2007).
[5] Y. J. Rao, Optical Fiber Technology, 12, 227 (2006).
[6] T. K. Gangopadhyay, Sensors and Actuators A, 113, 20 (2004).
[7] P. Ferraro, G. De Natale, Optics and Lasers in Engineering, 37, 115 (2002).
[8] K. Ni, C. C. Chan, X. Y. Dong, Optical Fiber Technology, 19, 410 (2013).
[9] L. Wei, Z. D. Zhou, J. Huang, and Y. G. tan, International Journal of Precision Engineering and Manufacturing, 14, 1577 (2013).
[10] Y. Zhang, S. G. Li, Z. F. Yin. The 17th International Conference on Optical Fiber Sensors, Proceedings of SPIE. Bellingham, 5585, 1008 (2005).
[11] L. Teng, L. S. Feng, H. Lin, et a1., Proc. of SPIE, the International Society for Optical Engineering, 6357, 63574C (2006).
[12] X. F. Chen, Y. Luo, C. C. Fan et a1., IEEE Photon. Technol. Lett., 12, 1013 (2000).
[13] D. H. Huo, (2009)
[14] H. Xiao, F. Li, and Y. Liu, Journal of Lightwave Technology, 26, 1249 (2008).
[15] L. Feng, J. He, J. Y. Duan, F. Li, and Y. L. Liu, J. Electron. Sci. and Tech. Chin. 6, 385 (2008).