[1] N. Hodgson, V. V. Ter-Mikirtychev, H. J. Hoffman, and W. Jordan, Advanced Solid-State Lasers 68, 552 (2002).
[2] X. Zhang, S. Zhao, and Q. Wang, J. Opt. Soc. Am. B 17, 1166 (2000).
[3] X. Zhang, S.Zhao, Q. Wang, Q. Zhang, L. Sun, and S. Zhang, IEEE J. Quantum Electron. 36, 2286 (1997).
[4] J. J. Degnan, IEEE J. Quantum Electron. 31, 1890 (1995).
[5] G. Xiao and M. Bass, IEEE J. Quantum Electron. 33, 41 (1997).
[6] J. Dong, J. Lu, and K. Ueda, J. Opt. Soc. Am. B 21, 2130 (2004).
[7] Z. Wang, X. Ye, T. Fang, and J. Xu, Opt. Rev. 12, 1 (2005).
[8] E. A Sziklas and A. E. Siegman, Appl. Opt. 14, 1874 (1975).
[9] B. Wasilewski, H. J Baker, and D. Hall, Appl. Opt. 39, 6174 (2000).
