[1] [1] E. Snitzer, R. Woodcock. Yb3+-Er3+ glass laser[J]. Appl. Phys. Lett., 1965, 6(3): 45～46

[2] [2] Ruikun Wu, J. D. Myers, M. J. Myers et al.. Diode pumped miniature eye-safe laser Q-switched by U2+:CaF2 and Co2+:MgAl2O4[C]. Proc. SPIE, 2002, 4723: 94～97

[3] [3] Robert D. Stultz, Marly B. Camargo, Suzanne T. Montgomery et al.. U4+:SrF2 efficient saturable absorber Q-switch for the 1.54 μm erbium:glass laser[J]. Appl. Phys. Lett., 1994, 64(8): 948～950

[4] [4] Robert D. Stultz, Marly B. Camargo, Milton Birnbaum. Q-switch saturable absorber materials for solid state lasers[C]. Proc. SPIE, 1994, 2115: 31～37

[5] [5] A. V. Podlipensky, V. G. Shcherbitsky, N. V. Kuleshov et al.. Cr2+:ZnSe and Co2+:ZnSe saturable-absorber Q-switches for 1.54 μm Er:glass lasers[J]. Opt. Lett., 1999, 24(14): 960～962

[6] [6] Yasi Jiang, Ruikun Wu, Daniel L. Rhonehouse et al.. Bleaching and Q-switching of U2+:CaF2 at 1535 nm[C]. Proc. SPIE, 1995, 2379: 26～31

[8] [8] A. Szabo, R. A. Stein. Theory of laser giant pulsing by a saturable absorber[J]. J. Appl. Phys., 1965, 36(5): 1562～1566

[9] [9] W. Koechner. Solid State Laser Engineering[M]. New York: Springer-Verlag, 1976. ch8

[10] [10] John J. Degnan. Theory of the optimally coupled Q-switched laser[J]. IEEE J. Quant. Electron., 1989, 25(2): 214～220

[11] [11] John J. Degnan. Optimization of passively Q-switched lasers[J]. IEEE J. Quant. Electron., 1995, 31(11): 1890～1901