Study on the photoinitiated impulse-enhanced electrically  
excited (PIE) preionization of CW CO2 laser

Chen Yihong, Din Yunmai & Qiu Junlin
Laser Institute
Huazhong University of Science and Technology
Wuhan, Hubei, China  

The PIE  preionisation technology and its application were studied both theoretically and experimentally in this paper. It was proven that the PIE preionisation can  reduce the E/N value, increase the pd value, and decrease the ignition voltage. Thus the PIE preionisation technology is an  effective method to improve the discharge stability and increase the output power of CW CO2 laser.
Reprinted from Laser Technology, Vol. 18, No. 4 (1994), 236-239

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