한국광학회지 (Korean Journal of Optics and Photonics)

  • 제14권6호
  • /
  • Pages.674-679
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  • 2003
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  • 1225-6285(pISSN)
  • /
  • 2287-321X(eISSN)
한국광학회 (Optical Society of Korea)
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파장가변 광섬유 링 레이저를 이용한 아세틸렌(13C2H2) 분광

Spectroscopy of acetylene (13C2H2) using a tunable erbium-doped fiber ring laser

  • 유한영 (충남대학교 물리학과 광전자실험실) ;
  • 오정미 (충남대학교 물리학과 광전자실험실) ;
  • 이동한 (충남대학교 물리학과 광전자실험실) ;
  • 문한섭 (한국표준과학연구원 정보통신표준센터) ;
  • 이원규 (한국표준과학연구원 정보통신표준센터) ;
  • 박갑동 (한국표준과학연구원 정보통신표준센터) ;
  • 서호성 (한국표준과학연구원 정보통신표준센터)
  • 발행 : 2003.12.01
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초록

본 연구에서는 C-밴드와 L-밴드 파장(1525 nm-1625 nm)에서 파장 변화가 가능한 광섬유 링 레이저를 제작하고, 이를 이용하여 아세틸렌 분자 전이선에 대한 분광연구를 수행하였다. 제작된 광섬유 링 레이저는 공진기 내부에 FFP-TF(Fiber Fabry-Perot Tunable Filter)를 이용하여 약 102 nm(1510.4-1612.6 nm)의 범위에서 파장을 연속 가변할 수 있었다. 광섬유 링 레이저의 파장가변특성을 이용하여 C-밴드(1525-1565 nm)에서 흡수선이 많은 아세틸렌($^{13}$C$_2$H$_2$)분자에서 50개 이상의 전이선에 대하여 높은 신호대 잡음비를 갖는 흡수 스펙트럼을 측정하였다.

We fabricated erbium-doped fiber ring laser with a new structure that can operate in C- & L-band wavelength region. The wave-length of the laser can be tuned continuously over 102 nm between 1510.4-1612.6 nm by insertion of the fiber Fabry-Perot tunable filter (FFP-TF) in the ring cavity. By use of the wavelength tunable characteristics of our fiber laser, we measured absorption spectra of more than fifty transition lines of the acetylene ($^{13}$ C$_2$H$_2$) molecule with high signal to noise ratio (SNR).

키워드

참고문헌

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