Optimization of generation parameters of the wide-aperture Xe laser pumped by an electron beam

Andrei V. Fedenev; A. V. Karelin; O. V. Simakova; Victor F. Tarasenko

doi:10.1117/12.460105

26 March 2002 Optimization of generation parameters of the wide-aperture Xe laser pumped by an electron beam

Andrei V. Fedenev, A. V. Karelin, O. V. Simakova, Victor F. Tarasenko

Proceedings Volume 4747, International Conference on Atomic and Molecular Pulsed Lasers IV; (2002) https://doi.org/10.1117/12.460105
Event: International Conference on Atomic and Molecular Pulsed Lasers IV, 2001, Tomsk, Russian Federation

Abstract

The data on optimization of output parameters (output energy and laser efficiency) and distribution of laser radiation energy on the output window cross-section of the wide- aperture Xe-laser pumped by a radially-convergent e-beam with pulse duration of approximately 0,5 microsecond(s) at the FWHM were obtained. It is shown experimentally, that the requirement of homogeneity of output laser radiation across the aperture limits the energy deposition value from below, and the requirement of maximal laser efficiency restricts the energy deposition value from above. In the experiment the maximal laser efficiency as 1,5 - 2% was obtained at the specific energy deposition of 12 - 14 mJ./cm³atm. The calculations show that with cleaning of the operating mixture from molecular gases impurities the laser efficiency and energy output can be increased in 1.5 - 2 times. The negative influence of impurity gases at optimum range of pumping power is decreasing of electron temperature and as a consequence decreasing of the upper laser level pumping.

Citation Download Citation

Andrei V. Fedenev, A. V. Karelin, O. V. Simakova, and Victor F. Tarasenko "Optimization of generation parameters of the wide-aperture Xe laser pumped by an electron beam", Proc. SPIE 4747, International Conference on Atomic and Molecular Pulsed Lasers IV, (26 March 2002); https://doi.org/10.1117/12.460105

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