Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Development of submersion sensors using multi-mode fibers spliced with a fiber Bragg grating

다중모드 광섬유 융착형 침수 감지 센서 개발

  • 손경락 (한국해양대학교 컴퓨터제어전자통신공학부) ;
  • 계광현 (한국해양대학교 대학원 전자통신공학과) ;
  • 심준환 (한국해양대학교 컴퓨터제어전자통신공학부) ;
  • 조석제 (한국해양대학교 컴퓨터제어전자통신공학부)
  • Published : 2009.09.30
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Abstract

This paper reports a preliminary experimental investigation and characterization of an optical fiber-based submersion sensor system for applications in water flooding and leakage. The sensor system comprises a multi-mode fiber spliced with fiber Bragg grating and an intensity-based interrogator. Submersion tests were conducted in water-air and Glycerin-air environments. By the refractive index of the fiber-probe surrounding materials, the reflectance and the detecting power level is determined. When the probe is dipped into the water, the optical output power dramatically decreases from -7.5dBm to -17.5dBm. But, the center of Bragg wavelength is not affected in spite of external material changes. Temporal response characteristics of the sensor system is investigated to verify the real-time reaction. When the probe is immersed into the liquid, there is no transition time.

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References

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