[1] T. Izumitani, M. Matsukawa, C. Hata, K.Tanaka, and H. Toratani, Laser Induced Damage in Optical Materials 752, 13 (1988).

[2] Y. Chen, L. Wen, L. Hu, W. Chen, Y. Guyot, and G. Boulon, Chin. Opt. Lett. 7, 56 (2009).

[3] J. Wang, Z. Luo, Z. Cai, M. Zhou, C. Ye, and H. Xu, IEEE. Photon. J. 3, 633 (2011).

[4] M. Melkumov, A. Laptev, M. Yashkov, N. Vechkanov, A. Guryanov, and I. Bufetov, Inorg. Mater. 46, 299 (2010).

[5] K. Arai, H. Namikawa, K. Kumata, T. Honda, Y. Ishii, and T. Handa, J. Appl. Phys. 59, 3430 (1986).

[6] K. Arai, H. Namikawa, Y. Ishii, H. Imai, H. Hosono, and Y. Abe, J. Non-Cryst. Solids 95&96, 609 (1987).

[7] S. Tanabe, J. Non-Cryst. Solids 259, 1 (1999).

[8] S. Jetschke, S. Unger, A. Schwuchow, M. Leich, and J. Kirchof, Opt. Express 16, 15540 (2008).

[9] M. Engholm and L. Norin, Opt. Express 16, 1260 (2008).

[10] S. Liu, Y. Zhang, W. He, and Y. Yue, J. Non-Cryst. Solids 357, 3897 (2011).

[11] B. Mysen, Am. Mineral. 81, 1531 (1996).

[12] M. J. Toplis and T. Schaller, J. Non-Cryst. Solids 224, 57 (1998).

[13] C. Nelson and D. R. Tallant, Phys. Chem. Glasses 25 31 (1984).

[14] H. Aguiar, J. Serra, P. Gonzalez, and B. Leon, J. Non-Cryst. Solids 355, 475 (2009).

[15] C. Y. Kim, A. E. Clark, and L. L. Hench, J. Biomed. Mater. Res. 26, 1147 (1992).

[16] M. Kawashita, F. Miyaji, T. Kokubo, G. H. Takaoka, I. Yamada, Y. Suzuki, and M. Inoue, J. Non-Cryst. Solids 255, 140 (1990).

[17] T. Fuss, A. Mogus-Milankovic, C. S. Ray, C. E. Lesher, R. Youngman, and D. E. Day, J. Non-Cryst. Solids 352, 4101 (2006).

[18] D. R. Tallant and C. Nelson, Phys. Chem. Glasses 27 75 (1986).

[19] L. Luo and J. Li, J. Non-Cryst. Solids. 112, 215 (1989).

[20] L. Chen, C. Yu, L. Hu, and W. Chen, J. Chinese Ceramic Society 38, 11 (2010).

[21] H. Desirena, E. De la Rosa, L. A. Diaz-Torres, and G. A. Kumar, Opt. Mater. 28, 560 (2006).

[22] B. R. Judd, Phys. Rev. 127, 750 (1962).

[23] G. S. Ofelt, J. Chem. Phys. 37, 511 (1962).

[24] B. O. Mysen, F. J. Ryerson, and D. Virgo, Am. Mineral. 66, 106 (1981).

[25] D. Li, M. E. Fleet, G. M. Bancroft, M. Kasrai, and Y. Pan, J. Non-Cryst. Solids 188, 181 (1995).

[26] S. Tanabe, T. Ohyagi, S. Todoroki, T. Hanada, and N. Soga, J. Appl. Phys. 73, 8451 (1993).

[27] F. Gan, Optical and Spectroscopic Properties of Glass (Springer-Verlag, Berlin Heidelberg, 1992).

[28] J. H. Campbell and T. I. Suratwala, J. Non-Cryst. Solids, 263, 318 (2000).

[29] Y. Fang, L. Hu, M. Liao, and L. Wen, J. Alloys Compd. 457, 19 (2008).

[30] W. J. Miniscalco, J. Lightwave Technol. 9, 234 (1991).

[31] M. Mirsaneh, I. M. Reaney, and P. V. Hatton, J. Non-Cryst. Solids 354, 3362 (2008).