한국광학회지 (Korean Journal of Optics and Photonics)

  • 제14권3호
  • /
  • Pages.219-223
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  • 2003
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  • 1225-6285(pISSN)
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  • 2287-321X(eISSN)
한국광학회 (Optical Society of Korea)
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광섬유의 잔류응력 측정 방법

Measurement method for profiling residual stress of an optical fiber

  • 박용우 (반도체 원천기술연구소, 한국전자통신연구원) ;
  • 백문철 (반도체 원천기술연구소, 한국전자통신연구원) ;
  • 진애경 (정보통신공학과, 광주과학기술원) ;
  • 백운출 (정보통신공학과, 광주과학기술원) ;
  • 김덕영 (정보통신공학과, 광주과학기술원)
  • 발행 : 2003.06.01
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초록

광섬유의 잔류응력(residual stress)을 측정하기 위해 위상보정 편광기(polariscope)를 새롭게 구성하고, 간섭이나 회절에 대한 영향을 최소화시키면서 빠르고 정확하게 측정하는 방법을 제시하였다. 이 방법을 이용하여 일반 광섬유의 잔류 응력 분포를 측정할 수 있었다. 또한 광섬유의 잔류응력이 모재의 잔류응력분포와 달리 인출 시 발생하는 광섬유 내 온도의 냉각곡선에 밀접한 관계를 갖고 있음을 알 수 있었다.

A novel method was proposed for determining the residual stress profile of an optical fiber by using a modified polariscope. Measurement results of the axisymmetric residual stress for a conventional single-mode fiber were demonstrated by using this method. It was found that non-uniform stress is distributed in the cladding of the fiber. This means that large mechanical stress is induced as a function of temperature generated near the neck shape of the fiber preform.

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참고문헌

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