The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Implementation of weight sensor with polarization maintaining photonic crystal fiber

편광유지 광결정 광섬유를 이용한 무게센서

  • 김응수 (부산외국어대학교 디지털미디어공학부)
  • Received : 2014.10.19
  • Accepted : 2015.01.12
  • Published : 2015.01.31
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Abstract

A weight sensor with a polarization maintaining photonic crystal fiber (PCF) is proposed and investigated by experimentally. The sensor system consists of a 3 dB fiber coupler, a half-wave plate, and light source. Wavelength shift induced by weight acting on the polarization maintaining PCF was measured. Two types of sensor patterns, circle type and straight type, were implemented and evaluated. The sensitivity of straight line type was 680 pm/kg and the circle type was 270 pm/kg, respectively. The both types of sensors have a good sensitivity and good linearity in the wide range.

편광유지 광결정 광섬유를 이용하여 무게센서를 제작하여 실험을 하였다. 본 논문의 센서시스템은 3 dB 커플러, 반파장판, 광원으로 구성되어진다. 무게가 편광유지 광결정 광섬유에 가해지면 파장이동을 측정한다. 센서감지부로 원형형태와 직선형태의 2 종류로 제작하여 특성을 조사하였다. 직선형태로 이루어진 센서의 감도는 680 pm/kg 였으며, 원형형태로 구성된 센서의 감도는 270 pm/kg 이었다. 두 가지 형태로 제작된 센서는 선형성이 좋았으며, 감도는 직선형태로 이루어진 센서가 좋음을 알 수 있었다.

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References

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