Investigation of the summation of copper-vapour laser frequencies

Autor: Karpukhin, V.T., Konev, Yu.B., Malikov, M.M.
Zdroj: Quantum Electronics; September 30, 1998, Vol. 28 Issue: 9 p788-792, 5p
Abstrakt: An investigation was made of the conversion of the copper-vapour laser radiation ( λ1 = 0.51 μm and λ2 = 0.578 μm) into UV radiation at the sum frequency (λ3 = 0.271 μm) in a DKDP crystal. The operation of this frequency converter was compared for two magnifications of the laser cavity: M = 5 and 200. The best results were obtained for M = 200 (average UV radiation power 0.75 W, conversion efficiency 12%). A study was made of the characteristics of the formation of radiation pulses representing the two lines in the laser beam as a whole and in its weakly diverging core. In a low-divergence beam the yellow- and green-line pulses were emitted practically simultaneously with approximately the same peak power, which facilitated the sum-frequency generation.
Databáze: Supplemental Index