An optical phase stabilization technique for interferometric systems

간섭계를 응용한 광학 장치에서의 위상 안정화 방법

  • 김종훈 (숭실대학교 정보통신공학과) ;
  • 김동성 (숭실대학교 정보통신공학과)
  • Published : 1997.10.01


This paper presents a new optical phase stabilization technique for interferometric such as Mach-Zehnder interferometers or Homodyne detectors. The proposed technique can lock such interferometric systems in their maximum/minimum optical outputs without using a dither signal. The phase control scheme is a modified steepest decent algorithm, and is analyzed in terms of a delta modulation approach. It is also applicable to low-repetition rate pulsed interferometric systems in which conventionally used dithering method is difficult to be applied.



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