[1] A. Migus et al.; IEEE J. Quant. Electr., 1982, QE-18, No., 1, 101.

[2] T. L Koch et al.; Opt. Commun., 1982, 40. 364.

[3] Zs. Bor et al., Sov. J Quant. Electr., 1982, 12, No. 8, 1050.

[4] D. S. Bethnne; Appl. Opt., 1981, 20, 1897.

[5] F. P. 8chafer(Ed.);Dye Lasor, 2nd Ed., Topics in Applied Physics, Vol. 1, S.pringor-Varlaig, Berlin, Hoidolborg, New York, 1977, p. 58.

[6] U. Ganiel et al.; IEEE J. Quant. Electr., 1975. QE-11, No. 11, 881.