Investigation of 2.5 kW transverse
flow CO2 (helium-free)  laser

Sun Junqiang,  Chen Yihong, Gong Zhiwei Tang Zhonghua,   Zhao Debao, Qiu Junlin Laser Institute Huazhong University of Science and Technology Wuhan, China  


The output characteristics of the high power transverse-flow CO2 (helium-free) laser influenced by the steady resistors are studied experimentally and the optimal parameters of steady resistors are determined. When the total pressure is 60 torr with the gas mixture of CO2 : Ar : N2 = 1.5 : 10 : 10, the output power reaches 2.5 kW with an  efficiency of 16.9%. The laser power unstability are 3%  during 12 hours' operation.

Reprinted from Laser Technology, Vol. 16, No. 1 (1992), 18-21

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