[1] [1] L. R. Marshall, A. Kaz. Eye-safe output from noncritically phase-matched parametric oscillators [J]. J. Opt. Soc. Am. B, 1993, 10(9):1730～1736

[2] [2] I. Lee, V. I. Villavicencio. High average power performance of an eyesafe KTP OPO based system [C]. SPIE, 1993, 1864:158～162

[3] [3] S. P. Velsko, M. S. Webb. High average power parametric frequency conversion-new concepts and new pump sources [C]. SPIE, 1994, 2145:309～314

[8] [8] B. C. Johnson, V. J. Newell, J. B. Clark et al.. Narrow-bandwidth low-divergence optical parametric oscillator for nonlinear frequency-conversion applications [J]. J. Opt. Soc. Am. B, 1995, 12(11):2122～2127

[9] [9] A. Kaz, L. R. Marshall, A. Pinto et al.. Scaling optical parametric oscillators in power, energy and beam quality [C]. OSA Proceedings on Advanced Solid-state Lasers, 1994, 20:466～470

[10] [10] S. Chandra, T. H. Allik, J. A. Hutchinson et al.. Improved OPO brightness with a GRM non-confocal unstable resonator [C]. OSA TOPS on Advanced Solid-state Lasers, 1996, 1:177～178

[11] [11] Zhou Shouhuan, Zhang Fang, Wen Hua et al.. Nd∶YAG Q-switched laser with variable reflectivity mirror (VRM) resonator [C]. SPIE, 1992, 1979:269～274

[12] [12] G. A. Rines, P. F. Moulton. Performance of gain-switched Ti∶Al2O3 unstable-resonator laser [C]. OSA Advanced Solid-state Laser, 1990, 6:88～93

[13] [13] B. Zhou, et al.. Laser Principle [M]. Beijing:The Press of Defence Industry, July, 1996, chapter 2 (in Chinese)