한국결정성장학회지 (Journal of the Korean Crystal Growth and Crystal Technology)

  • 제17권4호
  • /
  • Pages.151-155
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  • 2007
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  • 1225-1429(pISSN)
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  • 2234-5078(eISSN)
한국결정성장학회 (The Korea Association of Crystal Growth)
권호 표지

녹색 광 발진을 위한 주기적 분극 반전된 MgO : $LiNbO_3$ ridge waveguide 제작

Fabrication of a periodically poled MgO : $LiNbO_3$ ridge waveguide for a green laser generation

  • 양우석 (전자부품연구원 나노바이오포토닉스팀) ;
  • 권순우 (성균관대학교 신소재공학과) ;
  • 송명근 (항공대학교 재료공학과) ;
  • 이형만 (전자부품연구원 나노바이오포토닉스팀) ;
  • 김우경 (전자부품연구원 나노바이오포토닉스팀) ;
  • 구경환 ((주)코맥스) ;
  • 윤대호 (성균관대학교 신소재공학과) ;
  • 이한영 (전자부품연구원 나노바이오포토닉스팀)
  • Yang, W.S. (Nano-Bio Photonics Team, Korea Electronics Technology Institute) ;
  • Kwon, S.W. (Department of Advanced Materials Engineering, Sungkyunkwan University) ;
  • Song, M.K. (Department of Materials Engineering, Korea Aerospace University) ;
  • Lee, H.M. (Nano-Bio Photonics Team, Korea Electronics Technology Institute) ;
  • Kim, W.K. (Nano-Bio Photonics Team, Korea Electronics Technology Institute) ;
  • Koo, K.H. (COMMAX Co.) ;
  • Yoon, D.H. (Department of Advanced Materials Engineering, Sungkyunkwan University) ;
  • Lee, H.Y. (Nano-Bio Photonics Team, Korea Electronics Technology Institute)
  • 발행 : 2007.08.03
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초록

녹색 광 발진을 위해 조화용융조성의 MgO가 첨가된 $LiNbO_3$ 결정을 이용하여 준위상정합 2차 조화파 도파로 소자를 제작하였다. 도메인 반전을 위해 +Z면에 주기적인 전극 패턴을 형성하였으며, 외부전계의 균일한 인가를 위해 LiCl 전해 용액을 사용하여 도메인을 반전 시켰다. 선택적 화학식각을 통해, 약 $6.8{\mu}m$의 분극 반전 주기를 확인 할 수 있었으며, $7{\mu}m$ ridge 높이와 $3{\mu}m$의 slap높이를 갖는 폭 $5{\mu}m$의 PPMgLN ridge-type 도파로 소자의 비선형 특성을 측정하였다.

Quasi-phase-matched (QPM) second harmonic generation (SHG) waveguide devices for a green light generation were fabricated by a periodically patterned electrode on the +Z crystal surface and homogeneous LiCl solution using a 5 mol% MgO doped congruent z-cut lithium niobate crystals. Using selective chemical etching, we confirmed the periodic (${\sim}6.8{\mu}m$) domain inverted structure and measured SHG properties of fabricated periodically poled MgO : $LiNbO_3$ ridge-type waveguides.

키워드

참고문헌

  1. L.E. Myers and W.R. Bosenberg, 'Periodically poled lithium niobate and quasi-phase-matched optical parametric oscillators', IEEE J. Quantum. Electron. 33 (1997) 1663 https://doi.org/10.1109/3.631262
  2. Y. Zhu and N. Ming, 'Second-harmonic generation in a Fibonacci optical superlattice and the dispersive effect of the refractive index', Phys. Rev. B 42 (1990) 3676
  3. S. Kurimura, Y. Kato, M. Maruyama, Y. Usui and H. Nakajima, 'Quasi-phase- matched adhered ridge waveguide in $LiNbO_3$ ', Appl. Phy. Lett. 89 (2006) 191123 https://doi.org/10.1063/1.2387940
  4. M. Iwai, T. Yoshino, S. Yamaguchi, M. Imaeda, N. Pavel, I. Shoji and T. Taira, 'High-power blue generation from a periodically poled MgO :$LiNbO_3$ ridge-type waveguide by frequency double of a diode end-pumped Nd:$Y_3Al_5O_{12} $ laser', Appl. Phy. Lett. 83 (2003) 3659 https://doi.org/10.1063/1.1623938
  5. Y. Chen, J. Guo, X. Liu, C. Lou, J. Yuan, Y. Luo, J. Xu and S. Chen, 'Highly efficient blue light of femtosecond pulses by second-harmonic generation in periodically poled MgO: $LiNbO_3$', Opt. Comm. 238 (2004) 201 https://doi.org/10.1016/j.optcom.2004.04.058
  6. Y.J. Lai, J.C. Chen and K.C. Liao, 'Investigations of ferroelectric domain structures in the MgO: $LiNbO_3$ fibers by LHPG', J. of Crystal Growth 198 (1999) 531 https://doi.org/10.1016/S0022-0248(98)01144-0
  7. B.M. Jin, I.W. Kim, W.B. White and A.S. Bhalla, 'Modification of UV- VIS optical absorption properties caused by MgO incorporation in MgO-doped $LiNbO_3$, crystals', Materials Lett. 30 (1997) 385 https://doi.org/10.1016/S0167-577X(96)00228-5