[1] J. Y. Zhang, J. Y. Huang, Y. R. Shen et al.. Optical parametric generation and smplification in barium borate and lithium triborate crystals. J. Opt. Soc. Am. (B), 1993, 10(9)∶ 1758~1764

[2] W. R. Bosenberg, W. S. Pelouch, C. L. Tang. High-efficience and narrow-linewidth operation of a two-crystal β-BaB2O4 optical parametric oscillator. Appl. Phys. Lett., 1989, 55(19)∶ 1952

[3] J. Y. Huang, J. Y. Zhang, Y. R. Shen et al.. High-power, widely tunable, picosecond coherent source from optical parametric amplification in barium borte. Appl. Phys. Lett., 1990, 57(19)∶ 1961

[4] Stephen J. Brosnan, Robert L. Byer. Optical parametric oscillator threshold and linewidth studies. IEEE J. Quant. Electron., 1979, QE-15(6)∶ 415