Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Characterization of Supercontinuum Generation as a function of Pump Wavelength and Intensity in Photonic Crystal Fiber

광자 결정 광섬유에서 펌프광원의 파장과 입력파워에 따른 초 광대역 광원 발생의 특성

  • Kim, Jong-Doo (Department of Physics, Chungnam National University) ;
  • Yee, Ki-Ju (Department of Physics, Chungnam National University) ;
  • Jeon, Min-Yong (Department of Physics, Chungnam National University) ;
  • Ahn, Seong-Joon (Division of I&C Engineering, Sunmoon University) ;
  • Choi, Yong-Gyu (Department of Materials Science and Engineering, Hankuk Aviation University)
  • 김종두 (충남대학교 물리천문우주과학부 양자제어물성 연구소) ;
  • 이기주 (충남대학교 물리천문우주과학부 양자제어물성 연구소) ;
  • 전민용 (충남대학교 물리천문우주과학부 양자제어물성 연구소) ;
  • 안성준 (선문대학교 정보통신공학부) ;
  • 최용규 (한국항공대학교 항공재료공학과)
  • Published : 2005.12.01
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Abstract

We have experimentally studied supercontinuum generation in a photonic crystal fiber as a function of pump wavelength and intensity with 100 fs pulsewidth. A supercontinuum over 750 nm spectral width with amplitude variation less than 10 dB has been achieved. It was generated by coupling femtosecond pulses from a mode-locked Ti:Sapphire laser into a 2 m long photonic crystal fiber. Adjusting the parameters of the pump source, it was also possible to control different spectral features of the supercontinuum radiation.

본 논문은 광자 결정 광섬유에서 100 fs의 펄스 폭을 갖는 펌프 광원의 파장과 입력파워에 따른 초 광대역 광원 생성에 대해 실험적으로 연구하였다. 적절한 파라미터들을 조절함으로써 광 스펙트럼 진폭의 균일함이 10 dB 이내에서 약 750 nm의 스펙트럼 폭을 갖는 초 광대역 광원을 얻어냈다. 사용한 광자 결정 광섬유의 길이는 2 m였고, 펌프광원으로는 모드 록킹된 Ti:Sapphire laser를 사용하였다. 또한, 펌프 광원의 여러 가지 변수들을 바꿔줌으로써 초 광대역 광원의 다양한 스펙트럼 현상을 조절할 수 있었다.

Keywords

References

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