[1] X. Bao, M. DeMerchant, A. Brown, and T. Bremner, J. Lightwave Technol. 19, 1698 (2001).
[2] H. Izumita, T. Horiguchi, and T. Kurashima, in Proceedings of 12th International Conference on Optical Fiber Sensors 316 (1997).
[3] K. Shimizu, T. Horiguchi, and Y. Koyamada, Opt. Lett. 20, 507 (1995).
[4] H. Ohno, H. Naruse, M. Kihara, and A. Shimada, Opt. Fiber Technol. 7, 45 (2001).
[5] Z. Zhou, J. He, K. Yan, and J. Ou, Opt. Eng. 47, 014401 (2008).
[6] D. Garus, T. Gogolla, K. Krebber, and F. Schliep, J. Lightwave Technol. 15, 654 (1997).
[7] I.-B. Kwon, S.-J. Baik, K. Im, and J.-W. Yu, Sensors and Actuators A 101, 77 (2002).
[8] M. Song and B. Zhuang, Acta Opt. Sin. (in Chinese) 27, 711 (2007).
[9] K. Kishida, C. Li, S. Lin, and K. Nishiguchi, Technical Report of IEICE (in Japanese) OFT 2000-47 15 (2004).
[10] M. Niklès, L. Thévenaz, and P. A. Robert, J. Lightwave Technol. 15, 1842 (1997).
[11] X. Bao, A. Brown, M. DeMerchant, and J. Smith, Opt. Lett. 24, 510 (1999).
