광반응 재료를 이용한 광섬유 자외선 센서

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In this thesis, we have demonstrated the azobenzene-coated fiber Bragg grating (FBG) to monitor ultraviolet light (UV) intensity in remote measurement. The elasticity of the coated azobenzene polymer is changed by the UV light, which induces the center wavelength change corresponding to the change of the FBG’s grating period.
There are two methods of coating the azobenzene polymer on the FBG. These are the thermal casting method and the UV curing method. Center wavelength shift considered, UV curing method is more suitable for the UV sensors. Also, we have confirmed the center wavelength shift and shift aspect, and found that azo-coated FBG fabricated by using the Teflon casting is more suitable for the UV sensors and easy to supplementation.
To confirm the spectral response characteristics of the azo-coated FBG, we measured the magnitude of the center wavelength variation using bandpass filters. Consequently, the amount of the center wavelength variation of the azo-coated FBG is determined by the absorption spectrum of the azobenzene polymer, and the azo-coated FBGs show a superior reaction in shorter wavelength regions. Through this characteristic of the azo-coated FBG, we found the possibility as a UV sensor that can use in the various UV regions.
We experiment repeatedly to confirm the reproducibility and reliability, and therefore, the azo-coated FBG shows the superb reproducibility and reliability. Furthermore, we find the new research design through the intensity variation of the resonant wavelength.
Alternative Title
UV Fiber sensors based on Photo-responsive materials
Alternative Author(s)
Dong Seok Choi
조선대학교 광기술공학과
일반대학원 광기술공학과
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Table Of Contents

제1장 서 론

제2장 이 론
제1절 자외선
1. 자외선 개요
2. 자외선 활용
3. 자외선 발생기 종류

제2절 자외선 센서
1. 자외선 감지기(UV 센서)의 필요성
2. 국내외 관련 기술(기관) 현황 및 비교 분석
3. 자외선 포토다이오드
4. 자외선 불꽃 감지기
5. 기타 자외선 센서
6. 광섬유 기반 자외선 센서의 기술 수준 및 장단점

제3절 광섬유 격자
1. 광섬유 격자 개요
2. 단주기 격자
3. 장주기 격자

제4절 광기능성 소재
제3장 아조벤젠 코팅된 FBG
제1절 제작방법 및 특성
1. 제작 방법
2. 특성

제4장 실험 방법 및 결과
제1절 경화법에 따른 특성 분석
제2절 제작 방법에 따른 특성 분석
제3절 파장 의존성 분석
제4절 신뢰성 확인
제5절 자외선의 세기에 따른 반응도

제5장 결론
최동석. (2011). 광반응 재료를 이용한 광섬유 자외선 센서.
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General Graduate School > 3. Theses(Master)
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