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Theoretical Analysis of Impact of Q-switch Rise Time on Output Pulse Performance in an Ytterbium-doped Actively Q-switched Fiber Laser

이터븀 첨가 능동형 Q-스위칭 광섬유 레이저에서 Q-스위치 상승 시간이 출력 펄스에 미치는 영향에 대한 이론적 분석

  • Jeon, Jinwoo (School of Electrical and Computer Engineering, University of Seoul) ;
  • Lee, Junsu (School of Electrical and Computer Engineering, University of Seoul) ;
  • Lee, Ju Han (School of Electrical and Computer Engineering, University of Seoul)
  • 전진우 (서울시립대학교 전자전기컴퓨터공학부) ;
  • 이준수 (서울시립대학교 전자전기컴퓨터공학부) ;
  • 이주한 (서울시립대학교 전자전기컴퓨터공학부)
  • Received : 2013.02.27
  • Accepted : 2013.04.15
  • Published : 2013.04.25

Abstract

A theoretical analysis of the impact of rise time of a Q-switch on the output pulse performance is carried out in an Ytterbium-doped actively Q-switched fiber laser. The finite difference time domain (FDTD) method is used to numerically simulate the Q-switched fiber laser. It is shown that stable Gaussian-like pulse shape can be generated when the Q-switch rise time is increased and pulse repetition rate is enlarged.

Acknowledgement

Supported by : 서울시립대학교

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