Spectral and spatial characteristics of UV Cu+ laser excited in a nanosecond pulsed longitudinal Ne-CuBr discharge

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

doi:10.1117/12.518892

4 November 2003 Spectral and spatial characteristics of UV Cu⁺ laser excited in a nanosecond pulsed longitudinal Ne-CuBr discharge

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

Author Affiliations +

Proceedings Volume 5226, 12th International School on Quantum Electronics: Laser Physics and Applications; (2003) https://doi.org/10.1117/12.518892
Event: 12th International School on Quantum Electronics Laser Physics and Applications, 2002, Varna, Bulgaria

Abstract

Spectral and spatial parameters of the UV Cu⁺ Ne-CuBr laser radiation are calculated and experimentally measured. The estimated width of the laser oscillation band (248.6-nm Cu⁺ line) is about 1.5 GHz (0.3 pm). At a multimode UV laser oscillation a divergence of 0.7 mrad is measured for a curvature radius of the high reflector 3 m. For a laser cavity formed by two flat mirrors the calculated divergence θ_½ is 44 μrad. A comparative investigation on the temporal behavior of the average output power of the UV Cu⁺ laser with inserts made of a quartz and a ceramic tube is reported. The spectral measurements of the discharge are also made. The results show that the quartz tube is metallized and some impurity admixtures are released into the gas mixture. That leads to an average output power reduction from 500 mW to 30 mW at multiline output for an UV laser operation of approximately 25 hours. The using of cermaic tubes results in an absence of the tube metalization, a maintaining of the gas mixture composition, and a relatively constant average output power -- about 300 mW, for an UV lasing of 100 hours.

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Nikolay K. Vuchkov, Krasimir A. Temelkov, Peter V. Zahariev, and Nikola V. Sabotinov "Spectral and spatial characteristics of UV Cu⁺ laser excited in a nanosecond pulsed longitudinal Ne-CuBr discharge", Proc. SPIE 5226, 12th International School on Quantum Electronics: Laser Physics and Applications, (4 November 2003); https://doi.org/10.1117/12.518892

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