Proceedings of the Optical Society of Korea Conference (한국광학회:학술대회논문집)

Optical Society of Korea (한국광학회)
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Effective frequency doubling of fs-pulse with simultaneous group velocity matching and quasi-phase matching in periodically poled lithium niobate

주기적으로 분극반전된 $LiNbO_3$에서 군속도 일치와 의사위상정합에 의한 펨토초 펄스의 효율적인 2차 조화파발생

  • Lee, Yu-Nan (National Institute for Materials Science) ;
  • S. Kurimura (National Institute for Materials Scienc) ;
  • K. Kitamura (National Institute for Materials Scienc) ;
  • Hun, No-Jeong ;
  • Sik, Cha-Myeong
  • Published : 2003.02.01
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Abstract

Since group velocity (GV) mismatch significantly limits the efficiency of nonlinear interactions such as second harmonic generation (SHG), several techniques have been developed to compensate GV mismatch. The simplest way to avoid the GV mismatch problem is to reduce the device length. However, it results in a poor trade-off between the SHG spectral bandwidth and the conversion efficiency. (omitted)

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