[1] [1] K. Tei, M. Kato, Y. Niwa, S. Harayama, Y. Maruyama, T. Matoba, and T. Arisawa, Opt. Lett. 23, 514 (1998).

[2] [2] A. K. Sridharan, S. Saraf, S. Sinha, and R. L. Byer, Appl. Opt. 45, 3340 (2006).

[3] [3] G. D. Goodno, S. Palese, J. Harkenrider, and H. Injeyan, Opt. Lett. 26, 1672 (2001).

[4] [4] X. Cheng, Z. Wang, F. Chen, and J. Xu, Chin. Opt. Lett. 6, 364 (2008).

[5] [5] X. Ma, J. Bi, X. Hou, and W. Chen, Chin. Opt. Lett. 6, 366 (2008).

[6] [6] Z. Wang, J. Xu, and W. Chen, Chin. Opt. Lett. 5, S36 (2007).

[7] [7] J. Li, X. Li, Y. Lu, and X. Zhu, Chinese J. Lasers (in Chinese) 33, 289 (2006).

[8] [8] X. Li, J. Shao, H. Zang, and Y. Lu, Chinese J. Lasers (in Chinese) 35, 206 (2008).

[9] [9] P. Shi, H. Zhang, Y. Wang, R. Diart, and K. Du, Acta Opt. Sin. (in Chinese) 24, 641 (2004).

[10] [10] M. Guo, J. Li, W. Fu, X. Shi, Q. Hu, and W. Chen, Acta Opt. Sin. (in Chinese) 27, 280 (2007).

[11] [11] G. D. Goodno, H. Komine, S. J. McNaught, S. B. Weiss, S. Redmond, W. Long, R. Simpson, E. C. Cheung, D. Howland, P. Epp, M. Weber, M. McClellan, J. Sollee, and H. Injeyan, Opt. Lett. 31, 1247 (2006).

[12] [12] S. Palese, J. Harkenrider, W. Long, F. Chui, D. Hoffmaster, W. Burt, H. Injeyan, G. Conway, G. Truong, and F. Tapos, in OSA Trends in Optics and Photonics, Vol. 50 C. Marshall, (ed.) (Optical Society of America, Washington, 2001) pp.41-46.

[13] [13] J. P. Machan, W. H. Long, Jr., J. Zamel, and L. Marabella, in Technical Digest of 2002 Advanced Solid-State Lasers Conference 549 (2002).

[14] [14] H. Kiriyama, K. Yamakawa, T. Nagai, N. Kageyama, H. Miyajima, H. Kan, H. Yoshida, and M. Nakatsuka, Opt. Lett. 28, 1671 (2003).

[15] [15] H. Kiriyama, T. Yoshida, M. Yamanaka, Y. Izawa, T. Yamanaka, S. Nakai, T. Kanzaki, H. Miyajima, M. Miyamoto, and H. Kan, Fusion Eng. Design 44, 419 (1999).