Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Optical Path Analysis and Experiments for Optical Microphone

광 마이크로폰 개발을 위한 광 경로해석 및 실험

  • 권휴상 (한국표준과학연구원 기반표준부) ;
  • 김경우 (동명대학교 대학원 메카트로닉스공학과) ;
  • 김진기 (전북대학교 정밀기계공학과) ;
  • 제우성 (동명대학교 메카트로닉스공학과)
  • Published : 2007.03.01
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Abstract

The theoretical formulations are derived for calculating optical power change for intensity modulated fiber optical microphone. The optical power change is due to optical paths, misalignment and geometry of optical coupler. Based on the theoretical equations, three different optical couplers are simulated with respect to several angles of optical couplers. In order to evaluate the formulation, a multi-mode to multi-mode coupler which is one of abovementioned optical couplers is designed and characterized by carving out both static experiments and dynamic experiments. Considering experimental results, this paper conclude that the theoretical formulations is very useful for design optical coupler and this kind of fiber optic sensor is adequate to microphone.

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References

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