2001, Volume 3, Issue 1
Strategic Study of CAE >> 2001, Volume 3, Issue 1
The Round-metal-resonator CO2 Laser with Spiral Flow
State Key Laboratory of Laser Technology, Huazhong University of Science and Technology ( HUST), Wuhan 430074, China
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Abstract
The transverse flow, coaxial flow and diffusion cooling are the current types of high power CO2 laser for industrial applications. A new CO2 laser is being developed. Its round resonator consists of a number of equally-spaced and coaxially-mounted metal cavity units. Each unit has several channels for gas flow and discharge. The discharge ignited at the interface of the flow channel and the cavity is blown into the cavity, where the particles are excited and gain forms. The electrode structure, metal wall action on the active medium cooling, and the gain distribution have been studied. It is shown that the multi-channel blown-in discharge, intercavity spiral flow and adjacent unit rotating certain angle facilitate the circular uniformity of gain distribution. As a result, a new CO2 laser with high beam quality and compactness can be obtained.
Keywords
CO2 laser ; round-metal-resonator ; spiral flow ; beam quality
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References
[ 1 ] AbramovichGN .实用气体动力学 [M ].莫斯科 :技术理论文献国家出版社 , 195 1
[ 2 ] AkibaT , NagaiH , HishiiM .GaincharacteristicsofanatomosphericsealedCWCO2 Laser [J].JQuantElectr, 1979, QE15 (3) :16 2～ 170
[ 3 ] McDanielEW , MansonST , GallagherJW , etal.[R].TechnicalReportH - 78- 1, 1978, 4:140 9～15 0 4
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