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Proceedings Paper

Resonator and beam quality of the multichannel spiral flow CO2 laser with round-metal-resonator
Author(s): Wei Gong; Zaiguang Li; Desheng Xu
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Paper Abstract

For developing a new laser for laser cutting, which has the advantage of good beam quality, small size and low cost, we have proposed a round-metal-resonator CO2 laser with blow-in discharge and spiral flow. In this paper, investigations have been made on the resonator and beam quality of this laser. At first the ideal of the new laser is introduced in this paper. And secondly, the new structure for carbon dioxide laser is explained. Thirdly, investigations have been made on the resonator and the output beam quality of the carbon dioxide laser. The resonator parameters are determined by the matrix optics calculations and by considering the size of experimental structure and the basic design principles of resonator. The output laser intensity spacial distribution of the laser resonator with gain spacial distribution inside is obtained by solving the diffraction integral equations through iteration method. The results indicate that from the new structure laser, the quasi-fundamental mode laser beam can be obtained with a higher efficiency. The ideas to improve the gain distribution in the lasing channel, and then the quality of the mode of the output beam arise from these calculations.

Paper Details

Date Published: 4 May 2000
PDF: 5 pages
Proc. SPIE 3931, Gas, Chemical, and Electrical Lasers and Intense Beam Control and Applications, (4 May 2000); doi: 10.1117/12.384296
Show Author Affiliations
Wei Gong, Wuhan Research Institute of Posts and Telecommunications (China)
Zaiguang Li, Huazhong Univ. of Science and Technology (China)
Desheng Xu, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 3931:
Gas, Chemical, and Electrical Lasers and Intense Beam Control and Applications
Santanu Basu; Santanu Basu; Steven J. Davis; Ernest A. Dorko, Editor(s)

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