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Proceedings Paper

Square laser beam of high power transverse flow CO2 laser and its application
Author(s): Yingxiong Qin; Xiahui Tang; Rutao Zhong; Zhengjia Li
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Paper Abstract

By means of the Collins formula and finite-element method, diffraction integral equation of the square resonator with spherical mirrors is transformed to the finite-element matrix equation, mode-fields of the square aperture resonator is calculated. Experiment with square aperture resonator is done on HUST2000 high power transverse flow CO2 laser. The results show that a square multi-mode beam with uniform comparatively intensity appeares in near field distribution. Laser quenching on 45# steel is done by using the square multi-mode beam and general circle beam. The hardened case caused by the square multi-mode beam is more uniform than general circle beam.

Paper Details

Date Published: 4 January 2008
PDF: 6 pages
Proc. SPIE 6825, Lasers in Material Processing and Manufacturing III, 68250W (4 January 2008); doi: 10.1117/12.757416
Show Author Affiliations
Yingxiong Qin, Huazhong Univ. of Science and Technology (China)
Xiahui Tang, Huazhong Univ. of Science and Technology (China)
Rutao Zhong, Huazhong Univ. of Science and Technology (China)
Zhengjia Li, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 6825:
Lasers in Material Processing and Manufacturing III
ShuShen Deng; Akira Matsunawa; Xiao Zhu, Editor(s)

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