[1] J. Q. Yao, Nonlinear Optical Frequency Transformation and Laser Tuning Technology (in Chinese) (Science in China Press, Beijing, 1995) p. 109.
[2] B. K. Zhou, Y. Z. Gao, C. R. Chen, and J. H. Chen, Laser Elements (in Chinese) (National Defence Industry Press, Beijing, 2000) p. 123.
[3] T. Wang, J. Q. Yao, X. F. Li, Z. Y. Wang, J. Chen, B. G. Zhang, and P. Wang, Laser Journal (in Chinese) 23, 10 (2002).
[4] J. Q. Yao, Y. Z. Yu, P. Wang, T. Wang, B. G. Zhang, X. Ding, J. Chen, H. J. Peng, and H. S. Kwok, Chin. Phys. Lett. 9, 1214 (2001).
[5] T. Wang, J. Q. Yao, X. F. Li, L. Guo, J. Chen, Y. Z. Yu, Z. Y. Wang, and P. Wang, J. Optoelectronics·Laser (in Chinese) 13, 575 (2002).
