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

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study on the control of output power and pulse repetition rate in pulsed Nd:YAG laser

펄스형 Nd:YAG 레이저의 출력 에너지 및 펄스 반복률 제어에 관한 연구

  • Park, K.R. (Dept. of Electrical Eng. Pusan National Univ) ;
  • Kim, B.G. (Dept. of Electrical Eng. Pusan National Univ) ;
  • Moon, D.S. (Dept. of Electrical Eng. Pusan National Univ) ;
  • Hong, J.H. (Dept. of Electrical Eng. Pusan National Univ) ;
  • Kim, W.Y. (Dept. of Electrical Eng. Pusan National Univ) ;
  • Kang, U. (Korea Electrotechnology Research Institute) ;
  • Kim, H.J. (Dept. of Electrical Eng. Pusan National Univ) ;
  • Cho, J.S. (Dept. of Electrical Eng. Pusan National Univ)
  • Published : 2000.05.13
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Abstract

A pulsed Nd:YAG laser has been used in a wide variety of fields : measuring, material processing and so on. In a material processing, it is very important to control the laser energy density. A pulse repetition rate and a pulse width are regarded as the most dominant factors to control the energy density of laser beam. In this study, pulsed Nd:YAG laser system was designed and manufactured to control the laser output usefully and easily. This system adopted the sequential charge and discharge circuit is controlled by 80196 micro- processor. As a result, it is found that laser output is controlled minutely by changing laser input and pulse repetition rate, and usefully by using 80196 microprocessor.

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