Vol. 6, issue 06, article # 5

pdf Troitskii V. O. On peculiar features of harmonic generation of the copper vapor laser radiation in nonlinear crystals. // Atmospheric and oceanic optics. 1993. V. 6. No. 06. P. 666-671.
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Three nonlinear processes responsible for frequency conversion of a copper vapor laser emission in KDR and BBO crystals have been experimentally studied. For a mean power of 2 W delivered by a copper vapor laser at each of the two wavelengths ( λ1 = 510,6 nm, λ2 = 578,2 nm) the efficiency of conversion to the second harmonics up to 25% has been achieved. The efficiency of conversion into the radiation at summed frequency was about 14 %. Some features of a copper vapor laser are unfavorable for the above mentioned nonlinear processes. Possibilities of reaching better efficiencies are demonstrated.