[1] [1] Siegman A E. New developments in laser resonators.Holmes D A,Edit,Proc SPIE,1990,1224:2～14

[2] [2] Yang H X,Zhao D M,Lu X H,et al. Chinese Journal of Lasers,1997,124(8) :709～714

[3] [3] Gao C Q,Weber H. Acta Photonic Sinica,2001,30 (2):240～242

[4] [4] Luo S R,Lu BD,Sun N C. Acta Physica Sinica,2004,53(7):2145～2149

[5] [5] Wen Q,Chu X L,Zhang B. AActa Optica Sinica,2004,24(2)：274～278

[6] [6] Zhang B,Li Q,Cai B W. Acta Photonica Sinica,2004,33(5):553～556

[7] [7] Simmons W W,Hunt J T,Warren. Light propagation through large laser systems. IEEE J Quantum Electron,1981,17(9):1727～1744

[8] [8] Miao R C,Shen C Y,Ye Q,et al. Acta Photonica Sinica,2003,32(2):204～208

[9] [9] Miao R C,Ye Q,Shen C Y,et al. Acta Photonica Sinica,2002,31(7):882～886

[10] [10] Wang S M,Lu X F,Lin Q,et al. High Power Laser and Particle Beams,1996,8(4) :475～479

[11] [11] Shen Y R. The principles of nonlinear optics. John Wiley & Sons,Inc,1984

[12] [12] Chen J,Huang P. Exact measurement of the far field divergence of the laser beam using CCD camera. High Power L aser and Particle Beams,1997,9(4):552～556

[13] [13] Govind P A. Nonlinear fiber optics,Third edition & applications of nonlinear fiber optics. Beijing: Publishing House of Electronics Industry,2003.33～34

[14] [14] Roth U,Loewenthal F,Tommasini R,et al. Compensation of nonlinear self focusing in high power laser. IEEE J Quantum Electron,2000,36 (6): 687～691

[15] [15] Zhao H J,Zhu Q H,Feng G Y,et al. High Power Laser and Particle Beams,2004,16(3):291～295