A picosecond IR laser system with tunable wavelength, based on a hybrid CO2 laser
Journal of Optical Technology, Vol. 76, Issue 9, pp. 529-535
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A. A. Ageĭchik, V. N. Alekseev, V. I. Venglyuk, V. M. Gromovenko, M. S. Egorov, V. I. Korolev, A. N. Malinin, S. V. Ostapenko, Yu. A. Rezunkov, A. L. Safronov, G. A. Sokolova, and V. V. Stepanov, "A picosecond IR laser system with tunable wavelength, based on a hybrid CO2 laser," J. Opt. Technol. 76, 529-535 (2009)
http://www.opticsinfobase.org/JOT/abstract.cfm?URI=JOT-76-9-529
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This paper describes a picosecond laser system based on a hybrid CO2 laser, using optically controlled semiconductor switches with a pulse width from 100 ps to 300 ns, followed by conversion of the radiation in nonlinear crystals by means of second-harmonic generation. Silver selenogallate AgGaSe2 and zinc germanium diphosphide ZnGeP2 are used as nonlinear crystals. Two-stage conversion of the radiation of a picosecond CO2 laser with wavelength 9.4-10.6 μm into laser radiation with wavelengths 4.7-5.3 μm is carried out in the apparatus with an efficiency of 0.3%-0.5%, while 4.7-5.3-μm radiation is converted into 2.4-2.65-μm radiation with an efficiency of 8%. The overall conversion efficiency is 4×10−4 or 0.04% for an output pulse energy up to 35 μJ.
© 2009 Optical Society of America
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Scientific Research Institute for Comprehensive Testing of Optoelectronic Devices
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