[1] Yang, C., Xia, L., Wang, Y. and Liu, D. (2013) Optics & Laser Technology, 51, 62-66.
[2] Wang, J. and Wang, H. (2014) Infrared Physics & Technology, 65, 1-4.
http://dx.doi.org/10.1016/j.infrared.2014.03.002
[3] Yeh, C.H., Chow, C.W., Chen, J.H., Chen, K.H. and Lu, S.S. (2013) Optical Fiber Technology, 19, 359-361.
http://dx.doi.org/10.1016/j.yofte.2013.04.006
[4] Al-Mansoori, M.H., Adikan, F.R.M., Naji, A.W., Abdullah, M.K. and Mahdi, M.A. (2006) Optik, 117, 128-130.
http://dx.doi.org/10.1016/j.ijleo.2005.08.005
[5] Yeh, C.H., Shih, F.Y., Wen, S., Chow, C.W. and Chi, S. (2009) Optics Communications, 282, 546-549.
http://dx.doi.org/10.1016/j.optcom.2008.10.038
[6] Yeh, C.H., Chow, C.W., Wu, Y.F., Shih, F.Y., Wang, C.H. and Chi, S. (2009) Optical Fiber Technology, 15, 344-347.
http://dx.doi.org/10.1016/j.yofte.2009.03.002
[7] Yao, J., Yao, J.P., Wang, Y., Tjin, S.C., Zhou, Y., Lam, Y.L., Liu, J. and Lu, C. (2001) Optics Communications, 191, 341-345.
http://dx.doi.org/10.1016/S0030-4018(01)01154-3
[8] Sheu, F.-W., Chiou, C.-Y. and Yang, S.-C. (2008) Optics Communications, 281, 4719-4722.
http://dx.doi.org/10.1016/j.optcom.2008.05.038
[9] Liu, T., Wang, Q. and Soh, Y.C. (2003) Optics Communications, 225, 89-94.
http://dx.doi.org/10.1016/j.optcom.2003.07.034
[10] Liu, Y.-G., Wang, D. and Dong, X. (2008) Optics Communications, 281, 5400-5404.
http://dx.doi.org/10.1016/j.optcom.2008.07.081
[11] Han, Y.-G., Kim, G., Lee, J.H. and Lee, S.B. (2005) Optics Communications, 256, 98-102.
http://dx.doi.org/10.1016/j.optcom.2005.06.053
[12] Sun, J., Li, H., Cheng, Y. and Li, J. (2008) Optics Communications, 281, 5874-5883.
http://dx.doi.org/10.1016/j.optcom.2008.08.013