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Optical Engineering

Output beam characteristics of the radio frequency-excited slab CO2 laser with unstable-waveguide hybrid resonator
Author(s): Du Wang; Gen Li; Yingxiong Qin; Xiahui Tang
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Paper Abstract

A positive branch unstable-waveguide hybrid resonator has been designed for a RF-excited slab CO2 laser of 100 W level. The output beam mode and the propagation characteristics in the two directions of unstable and waveguide were investigated by numerical and experimental methods. The results show that the output beam was collimated in the unstable direction, and was an approximate fundamental mode in the waveguide direction with a divergence angle of 12 mrad. The output power decreased by 50% with the misaligned angle of the tail mirror of 1.5 mrad, and was close to 0 with the misaligned angle more than 3 mrad.

Paper Details

Date Published: 1 September 2011
PDF: 6 pages
Opt. Eng. 50(9) 094204 doi: 10.1117/1.3626578
Published in: Optical Engineering Volume 50, Issue 9
Show Author Affiliations
Du Wang, Huazhong Univ. of Science and Technology (China)
Gen Li, Huazhong Univ. of Science and Technology (China)
Yingxiong Qin, Huazhong Univ. of Science and Technology (China)
Xiahui Tang, Huazhong Univ. of Science and Technology (China)

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