Kinetic and experimental study on the influence of the inside tube diameter on the UV ion Ne-CuBr laser output parameters

Nikolay K. Vuchkov; Krasimir A. Temelkov; Peter V. Zahariev; Nikola V. Sabotinov

doi:10.1117/12.460115

26 March 2002 Kinetic and experimental study on the influence of the inside tube diameter on the UV ion Ne-CuBr laser output parameters

Nikolay K. Vuchkov, Krasimir A. Temelkov, Peter V. Zahariev, Nikola V. Sabotinov

Author Affiliations +

Proceedings Volume 4747, International Conference on Atomic and Molecular Pulsed Lasers IV; (2002) https://doi.org/10.1117/12.460115
Event: International Conference on Atomic and Molecular Pulsed Lasers IV, 2001, Tomsk, Russian Federation

Abstract

A simplified model, describing the kinetic processes in a nanosecond pulsed longitudinal Ne-CuBr discharge afterglow, is made. It is shown that the influence of the active zone diameter decrease on the inversion population and hence on the output power and the laser pulse on the 248.6 nm line is due to the more effective population of the upper laser level, because of the higher neon ion density and mainly because of the more effective depopulation of the lower laser level. Optimal discharge conditions for UV laser operation are found for different active zone diameters of the laser tube - 12 mm, 9.5 mm, 9 mm, 8 mm, 5.8 mm, 5.7 mm, 5.2 mm and 4 mm. With diameter reduction a record average laser power of 1.3 W is obtained at multiline output. The highest peak pulse and average output powers are measured on the 248.6-nm laser line for the UV Cu^+I lasers - 3.25 W and 0.85 W, respectively. The obtained specific average laser power is 56.6 mW.cm^-3 at an active volume of 23 cm³.

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Nikolay K. Vuchkov, Krasimir A. Temelkov, Peter V. Zahariev, and Nikola V. Sabotinov "Kinetic and experimental study on the influence of the inside tube diameter on the UV ion Ne-CuBr laser output parameters", Proc. SPIE 4747, International Conference on Atomic and Molecular Pulsed Lasers IV, (26 March 2002); https://doi.org/10.1117/12.460115

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