Wide-aperture several-THz bandwidth CO2 laser amplifier with transverse pumping by the pulsed-kJ power chemical hf laser

Boris Sergeevitch Alexandrov; A. V. Arsenjev; Michail A. Azarov; V. A. Drozdov; V. I. Mashendzhinov; V. E. Revich; Georgiy A. Troshchinenko

doi:10.1117/12.414079

25 January 2001 Wide-aperture several-THz bandwidth CO₂ laser amplifier with transverse pumping by the pulsed-kJ power chemical hf laser

Boris Sergeevitch Alexandrov, A. V. Arsenjev, Michail A. Azarov, V. A. Drozdov, V. I. Mashendzhinov, V. E. Revich, Georgiy A. Troshchinenko

Author Affiliations +

Proceedings Volume 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference; (2001) https://doi.org/10.1117/12.414079
Event: XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, 2000, Florence, Italy

Abstract

For the grounding of the program of the wide-aperture several THz bandwidth CO2 laser amplifier creation it was initiated the experimental investigation of a HF laser radiation transformation in a multiatmospheric C02/He medium. The C02/3He mixture (46x50x63 mm3, 4 atm) was pumped by the 1P8 spectral line of the pulsed chemical HF laser (85 J, 1 ps). Transverse pumping geometry was used. Up to the power density of 2.7 MW/cm2 an absorption saturation was not observed. At the deposited energy of 58 J and output coupling of 20% it was obtained CO2 laser pulse of 2.7 J (quantum efficiency was about 1 8.6%). The estimated small-signal gain was of 0.05 cm1

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Boris Sergeevitch Alexandrov, A. V. Arsenjev, Michail A. Azarov, V. A. Drozdov, V. I. Mashendzhinov, V. E. Revich, and Georgiy A. Troshchinenko "Wide-aperture several-THz bandwidth CO₂ laser amplifier with transverse pumping by the pulsed-kJ power chemical hf laser", Proc. SPIE 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (25 January 2001); https://doi.org/10.1117/12.414079

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