Tan Rongqing, Wan Chongyi, Wu Jin. Expanding the Flat-top Mode of TEA CO2 Laser in Hermit-Gauss Modes[J]. Acta Photonica Sinica, 2006, 35(11): 1632
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Generally,the energy density distribution of a TEA CO2 laser was flat-topped. In order to find a new method for studying and analyzing the output beams of TEA CO2 lasers,according to the FGB theory,the energy density distribution of the measured flat-top beam output by a TEA CO2 laser was expanded in Hermit-Gauss functions. And the space distribution characteristics of the output beam were analyzed and investigated. It was proven that the energy density distribution of a TEA CO2 laser could be expanded in Hermit-Gauss functions.