УДК: 681.7.069.223: 621.791.72

Optimizing the process of generating the second harmonic of the radiation of a TEA CO2 laser in a ZnGeP2 crystal

Koval’chuk L.V., Goryachkin, D.A., Sergeev V.V.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Ковальчук Л.В., Горячкин Д.А., Сергеев В.В., Калинцев А.Г., Калинцева Н.А., Калинин В.П., Грибенюков А.И. Оптимизация процесса генерации второй гармоники излучения ТЕА СО₂-лазера в кристалле ZnGeP₂ // Оптический журнал. 2012. Т. 79. № 9. С. 14–22.

Koval’chuk L. V., Kalintsev A. G., Gribenyukov A. I., Goryachkin D. A., Sergeev V. V., Kalintseva N. A., Kalinin V. P. Optimizing the process of generating the second harmonic of the radiation of a TEA CO₂ laser in a ZnGeP₂ crystal [in English] // Opticheskii Zhurnal. 2012. V. 79. № 9. P. 14–22.

For citation (Journal of Optical Technology):

L. V. Koval’chuk, A. G. Kalintsev, A. I. Gribenyukov, D. A. Goryachkin, V. V. Sergeev, N. A. Kalintseva, and V. P. Kalinin, "Optimizing the process of generating the second harmonic of the radiation of a TEA CO₂ laser in a ZnGeP₂ crystal," Journal of Optical Technology. 79(9), 538-544 (2012). https://doi.org/10.1364/JOT.79.000538

Abstract:

The creation of a high-intensity source in the 4.6–5.4-µm range is a problem that has attracted the attention of researchers for several decades. This paper describes the optimization of the process of generating the second harmonic of the radiation of a pulse-periodic TEA CO₂laser by choosing a nonlinear crystal and the temporal shape of the laser-pump pulse. Energy-conversion efficiency of up to 20% has been experimentally obtained in a ZnGeP₂ crystal with mean power of the radiation in the λ=4.8µm region of up to 0.24 W and a pulse repetition rate of 10 Hz.

Keywords:

TEA CO2 laser, non-linear crystal ZnGeP2 second harmonic generation

OCIS codes: 350.3390

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