한국광학회지 (Korean Journal of Optics and Photonics)

  • 제19권6호
  • /
  • Pages.408-415
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  • 2008
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  • 1225-6285(pISSN)
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  • 2287-321X(eISSN)
한국광학회 (Optical Society of Korea)
권호 표지
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DOI QR Code

Ti:PPLN 광도파로를 이용한 비선형광학 기반의 의사 위상정합 2차 조화파 발생

Quasi Phase-Matched Second Harmonic-Wave Generation based on Nonlinear-Optic Effect Utilizing Ti:PPLN Optical Waveguides

  • 정홍식 (홍익대학교 과학기술대학 전자전기공학과) ;
  • 정영식 (인천대학교 공과대학 전기공학과)
  • Jung, Hong-Sik (Dept. of Electronic and Electrical Engineering, Hongik University) ;
  • Jung, Young-Sik (Dept. of Electrical Engineering, University of Incheon)
  • 발행 : 2008.12.31
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초록

고전압 펄스를 인가시켜서 주기적으로 도메인을 반전시키는 공정을 검토하였으며, 이를 적용해서 제작된 Ti 확산 리튬나오베이트 채널광도파로(Ti:PPLN) 기반의 의사 위상정합 2차 조화파 발생을 체계적으로 측정하였다. 2차 조화파 발생을 위해서 $16.6{\mu}m$ 분극 주기와 49 mm 길이의 Ti:PPLN 채널광도파로를 제작하였으며, 473(%/W) 변환효율이 측정되었다.

The characteristics of a ferroelectric-domain inverted grating fabricated by applying a high-voltage pulse at room temperature in Ti-diffused channel waveguides in z-cut $LiNbO_3$ (Ti:PPLN) were examined for channel waveguide quasi phase-matched secondharmonic generation devices. The fabrication conditions of uniform periodic domain-inversion were examined. Ti:PPLN with period ${\Lambda}=16.6{\mu}m$ for SHG were fabricated and the performances were measured. A normalized SHG efficiency as high as 473 (%/W) was obtained with 49 mm interaction length.

키워드

참고문헌

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