대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

단순화된 Pockels cell Q-switch용 구동기 개발 및 특성에 관한 연구

A study of the development of a simple driver for the Pockels cell Q-switch and Its characteristics

  • 박구렬 (부산대학교 전기공학과) ;
  • 정종한 (부산대학교 전기공학과) ;
  • 홍정환 (부산대학교 전기공학과) ;
  • 김병균 (부산대학교 전기공학과) ;
  • 문동성 (부산대학교 전기공학과) ;
  • 김휘영 (동주대학 컴퓨터정보통신학과) ;
  • 김희제 (부산대학교 전기공학과) ;
  • 조정수 (부산대학교 전기공학과)
  • Park, K.R. (Dept. of Electrical Eng. Pusan National Univ.) ;
  • Joung, J.H. (Dept. of Electrical Eng. Pusan National Univ.) ;
  • Hong, J.H. (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.) ;
  • Kim, W.Y. (Dept. of C.I.C. Dong-Ju College) ;
  • Kim, H.J. (Dept. of Electrical Eng. Pusan National Univ.) ;
  • Cho, J.S. (Dept. of Electrical Eng. Pusan National Univ.)
  • 발행 : 2000.07.17
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초록

In the technique of Q-switching, very fast electronically controlled optical shutters can be made by using the electro-optic effect in crystals or liquids. The driver for the Pockels cell must be a high-speed, high-voltage switch which also must deliver a sizeable current. Common switching techniques include the use of vacuum tubes, cold cathode tubes, thyratrons, SCRs, and avalanche transistors. Semiconductor devices such as SCRs, avalanche transistors, and MOSFETs have been successfully employed to drive Pockels cell Q-switch. In this study, a simple driver for the Pockels cell Q-switch was developed by using SCRs, pulse transformer and TTL ICs. The Pockels cell Q-switch which was operated by this driver was employed in pulsed Nd:YAG laser system to investigate the operating characteristics of this Q-switch. And we have investigated the output characteristics of this Q-switch as a function of the Q-switch delay time to Xe flashlamp current on.

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