[1] Y. Zheng, X. Dong, R. Yang, S. Zhang, J. C. C. Chan, P. P. Shum. IEEE Sens. J., 14, 3148(2014).
[2] L. Gao, T. Zhu, M. Deng, K. S. Chiang, X. Sun, X. Dong, Y. Hou. IEEE Photon. J., 4, 2095(2012).
[3] W. Lin, Y. Miao, H. Zhang, B. Liu, Y. Liu, B. Song. Appl. Phys. Lett., 103, 151101(2013).
[4] T. Hu, Y. Zhao, X. Li, J. Chen, Z. Lv. Chin. Opt. Lett., 8, 392(2010).
[5] H. Tian, C. Zhou, D. Fan, Y. Ou, D. Yin. Chin. Opt. Lett., 12, 24(2014).
[8] Y. Chen, Q. Han, T. Liu, X. Lan, H. Xiao. Opt. Lett., 38, 3999(2013).
[9] J. Li, R. Wang, J. Wang, B. Zhang, Z. Xu, H. Wang. Opt. Fiber Technol., 20, 100(2014).
[11] W. Tsai, K. Lin, S. Yang, Y. Tsao, P. Ho. Chin. Opt. Lett., 12, 67(2014).
[12] B. Shuai, L. Xia, D. Liu. Opt. Express, 20, 25858(2012).
[13] A. K. Sharma, T. Nagao. Appl. Phys. B Lasers Opt., 117, 363(2014).
[14] Y. Ying, Y. Zhao, R. Lv, H. Hu. IEEE Trans. Instrum. Meas., 65, 1(2015).
[15] L. Luo, S. Pu, J. Tang, X. Zeng, M. Lahoubi. Appl. Phys. Lett., 106, 816(2015).
[16] Y. Zhao, R. Q. Lv, Y. Ying, Q. Wang. Opt. Laser Technol., 44, 899(2012).
[17] R. Q. Lv, Y. Zhao, D. Wang, Q. Wang. IEEE Photon. Technol. Lett., 26, 217(2014).
[20] G. Agrawal, P. L. Christiansen, M. P. Sørensen, A. C. Scott. Nonlinear Fiber Optics. Nonlinear Science at the Dawn of the 21st Century, 195(2000).
[22] H. Chen, S. Li, J. Li, Z. Fan. IEEE Photon. Technol. Lett., 27, 1(2015).