[1] Zayhowski J J , Dill III C. Diode-pumped passively Q-switched picosecond microchip lasers [J]. Opt. Lett., 1994, 19(18): 1427-1429.
[2] Burshtein S Y, Baranga Z, et al. Repetitive Q-switching of a CW Nd: YAG laser using Cr4+: YAG [J]. IEEE J. Quant. Electron., 1996, QE-32(2): 305-310.
[3] Freitag I, Henking R, Tiinnermann A, et al. Quasi-three-level room-temperature Nd: YAG ring laser with high single-frequency output-power at 946 nm [J]. Opt. Lett., 1996, 20(24): 2499-2501.
[4] Clarkson W A, Koch R, Hanna D C, et al. Room-temperature diode-bar-pumped Nd: YAG laser at 946 nm [J]. Opt. Lett., 1996, 21(10): 737-739.
[5] Eakins D E, Held M, Norton M G, et al. A study of fracture and defects in single crystal YAG [J]. J. Crystal Growth, 2004, 267: 502.