[1] [1] Sipes D L. Highly efficient neodymium:Yttrium aluminum garnet laser end-pumped by a semiconductor laser array[J]. Appl Phys Lett, 1985,47:74-76.

[3] [3] Berger J, Welch D F, Scrifer D R, et al. High power high efficient neodymium: Yttrium aluminum garnet laser end-pumped by a diode array[J]. Appl Phys Lett, 1987,51:1212-1214.

[4] [4] Szabo A,Stein R A. Theory of laser giant pulsing by a saturable absorber[J]. J ApplPhys, 1965,36: 1562-1566.

[5] [5] Erickson L E,Szabo A. Effect of saturable absorber lifetime on the performance of giant-pulse lasers[J]. J Appl Phys, 1966,37: 4953-4961.

[6] [6] Kuo Y K, Huang M F, Birnbaum M. Tunable Cr4+: YSO Qswitched Cr4+: LiCAF laser[J]. IEEE J Quantum Electron,1995,31:657-663.

[7] [7] Dascalu T,Philipps G,Weber H. Investigation of a Cr4+ :YAG passive Q-switched in CW pumped Nd: YAG laser[J]. Opt Laser Technol, 1997,29:145-149.

[8] [8] Siegman A E. Lasers[M]. Mill Valley, Calif: University Science, 1986. 1024-1026.

[9] [9] Degnan J J. Optimization of passively Q-switched lasers[J].IEEEJ Quantum Electron, 1995,31: 1890-1901.

[10] [10] Zhang X Y,Zhao S Z,Wang Q P. Modeling of passively Qswitched lasers[J]. J Opt Soc Am(B), 2000,17:1166-1175.

[11] [11] Zheng J A,Zhao S Z,Chen L. Influence of thermal effect in gain media on optimum design of LD end-pumped solid-solidstate laser[J]. Acta Photonica Sinica. , 2001,30(6):724-729.

[13] [13] Taira T,Tulloch W M,Byer R L. Modeling of quasi-three-level lasers and operation of cw Yb: YAG lasers[J]. Appl Opt,1997,36(9): 1867-1874.

[14] [14] Fan T Y,Byer R L. Diode laser-pumped solid-state lasers[J].IEEE J Quantum Electron, 1988,24(6): 895-912.