Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Mode Selection and Amplification of an Optical Frequency Comb Using Femto-Second Laser Injection-locking Technique

펨토초 레이저 주입잠금법을 이용한 광주파수 빗의 모드 선택과 증폭

  • Moon, H.S. (Division of Physical Metrology, Korea Research Institute of Standards and Science) ;
  • Kim, E.B. (Division of Physical Metrology, Korea Research Institute of Standards and Science) ;
  • Park, S.E. (Division of Physical Metrology, Korea Research Institute of Standards and Science) ;
  • Park, C.Y. (Division of Physical Metrology, Korea Research Institute of Standards and Science)
  • 문한섭 (한국표준과학연구원 기반표준부) ;
  • 김억봉 (한국표준과학연구원 기반표준부) ;
  • 박상언 (한국표준과학연구원 기반표준부) ;
  • 박창용 (한국표준과학연구원 기반표준부)
  • Published : 2006.03.01
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Abstract

We have demonstrated the selection and the amplification of the components of an optical frequency comb using femto-second laser injection-locking technique. We used a mode-locked Ti:sapphire laser as a master laser and a single-mode diode laser as a slave laser. After passing through the interference filter with the center wavelength 794.7 nm and the transmittance bandwidth 1.5 nm, the optical frequency comb by mode-locked femto-second laser was injected into the slave laser. The injection-locked slave laser had $3{\sim}4$ multi-mode with the mode spacing 100.5 MHz, whichcorrespond to the repetition rate of a mode-locked Ti:sapphire laser. The power of the modes selected by femto-second laser injection-locking technique was amplified to several thousands times

펨토초 레이저 주입잠금법을 이용하여 펨토초 광주파수 벗에서 특정한 주파수 모드를 선택하고 증폭시켰다. 실험에서는 모드 잠금된 Ti:sapphire레이저를 지배 레이저로 그리고 단일모드로 발진하는 반도체 레이저를 종속 레이저로 사용하였다. 모드 잠금된 Ti:sapphire레이저를 중심파장 794.7 nm, 밴드 폭 1.5 nm의 간섭필터를 통과한 후 반도체 레이저에 주입잠금시켰다. 주입잠금된 반도체 레이저가 모드 잠금된Ti:sapphire레이저의 펄스 반복율과 일치하는 100.5 MHz간격의 모드 $3{\sim}4$개가 동시에 발진되는 것 확인할 수 있었다. 펨토초 레이저 주입잠금법에 의해서 선택된 모드의 출력을 수천 배 증폭시킬 수 있었다.

Keywords

References

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