한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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링 블로우를 이용한 펄스형 $CO_2$ 레이저 시스템의 효율 향상과 동작 특성에 관한 연구

A Study on Efficiency Improvement and Optimization of Operating Characteristics of Pulsed $CO_2$ Laser System using Ring Blower

  • Kim, D.H. (Dept. of Electrical Eng., Pusan National Univ.) ;
  • Chung, H.J. (Dept. of Electrical Eng., Pusan National Univ.) ;
  • Park, S.J. (Dept. of Electrical Eng., Pusan National Univ.) ;
  • Joung, J.H. (Dept. of Electrical Eng., Pusan National Univ.) ;
  • Lee, D.H. (Dept. of Electrical Eng., Pusan National Univ.) ;
  • Kim, H.J. (Dept. of Electrical Eng., Pusan National Univ.) ;
  • Cho, J.S. (Dept. of Electrical Eng., Pusan National Univ.)
  • 발행 : 2000.05.13
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초록

In this paper, it is purpose to develop a pulsed $CO_2$ laser with stable output at pulse repetition rate range of 2 KHz. We used a IGBT as a switching device. The laser cavity was fabricated as an axial and water cooled type. It was used a ring blower to increase a cooling effect The laser performance characteristics as parameters, such as pulse repetition rate, gas pressure have been investigated. The experiment was done under 3 electrode-type instead of 2 electrode-type. To achieve 3 electrode-type, we used two pulse-transformers which is operated parallel. As a result, the maximum output was about 28 W at the total pressure of 20 Torr, the gas mixture $Co_2$:$N_2$:He=1:9:15 and the pulse repetition rate of 1300 Hz.

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