Supersonic e-beam sustained CO laser in the repetitive Q-switched mode

Boris Sergeevitch Alexandrov; V. A. Belavin; Boris M. Dymshits; J. P. Koretsky

doi:10.1117/12.334486

22 December 1998 Supersonic e-beam sustained CO laser in the repetitive Q-switched mode

Boris Sergeevitch Alexandrov, V. A. Belavin, Boris M. Dymshits, J. P. Koretsky

Proceedings Volume 3574, XII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference; (1998) https://doi.org/10.1117/12.334486
Event: Twelfth International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, 1998, St. Petersburg, Russian Federation

Abstract

The numerical investigation of the energy and spectral radiation characteristics of the supersonic e-beam sustained CO laser, operating in the repetitive Q-switched mode, is carried out. All calculations are executed for values of parameters of the e-beam sustained discharge, gas mixture, supersonic channel and optical resonator close to the corresponding values for the experimental CW mock-up of this type laser with output power of 200 kW. In the mode of the resonator quality modulation, the parameters of output radiation depend on frequency of the pulse repetition. For frequency range of 0.7 - 50 kHz the average specific energy per unit of the gas mass is 28% - 96% of the specific energy in CW mode, the peak power exceeds 6400 - 170 times the CW power, the laser pulse length at the half-height is 35 - 60 nanoseconds. The radiation spectrum has some tens lines in the wavelength range of (lambda) equals 4.9 - 9.0 micrometer.

Citation Download Citation

Boris Sergeevitch Alexandrov, V. A. Belavin, Boris M. Dymshits, and J. P. Koretsky "Supersonic e-beam sustained CO laser in the repetitive Q-switched mode", Proc. SPIE 3574, XII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (22 December 1998); https://doi.org/10.1117/12.334486

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