Spectral Resolution Enhancement of Acousto-Optic Tunable Filter(AOTF) using Incident Angle Variation

음향광학변조필터의 입사각 변화를 이용한 분해능 향상 방법

  • 유장우 (한국과학기술원 기계공학과) ;
  • 안정호 (한국과학기술원 기계공학과) ;
  • 김대석 (한국과학기술원 기계공학과) ;
  • 곽윤근 (한국과학기술원 기계공학과) ;
  • 김수현 (한국과학기술원 기계공학과) ;
  • 이윤우 (한국표준과학연구원 광기술표준부) ;
  • 황인덕 (삼성종합기술원)
  • Published : 2004.11.03

Abstract

Spectral resolution enhancement method of Acousto-Optic Tunable Filter (AOTF) using incident light angle variation is described. AOTF is a small, mechanically rigid, high speed and spectral resolution light tunable filter. The basic theory of AOTF and its experimental verification is described. AOTF can generate two opposite polarized light simultaneously which wavelength can be changed by incident angle variation. We focused on the common region of two filtered light at the specific incident angle. This region can be used to enhance the spectral resolution of AOTF.

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