대한전자공학회논문지SD (Journal of the Institute of Electronics Engineers of Korea SD)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

단일모드 광섬유의 소산장을 이용한 전류센서

Current sensor using an evanescent field of single-mode optical fiber

  • 손경락 (한국해양대학교 전파전자통신공학부) ;
  • 김형표 (상주대학교 전자전기공학부)
  • 발행 : 2004.10.01
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초록

단일 모드 광섬유의 측면을 일부분 연마하여 연마된 상부에 열 광학 폴리머 층과 금속열선을 형성한 광섬유형 전류센서를 보고한다. 금속 열선에 인가된 전류에 의해서 발생하는 저항열은 폴리머 층의 굴절률을 변화시키고 광섬유의 소산장을 통한 광 감쇄를 유도하게 된다 두 가지 유형의 센서구조를 제안하였고 전류센서로서의 특징을 조사하였다.

We report the fiber-optic current sensors composed of a side-polished single-mode fiber with the thermo-optic Polymer layer and the metal wire as a heater. The index change of polymer layers caused by the resistant heat of the metal wires induces the optical attenuation through the evanescent field of the side-polished single-mode fiber. Two types of the sensors are proposed and their characteristics as a current sensor are investigated.

키워드

참고문헌

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