Cutoff Modulator Using a Proton-Diffused $LiNbO_3$ Channel Waveguide

양자확산 $LiNbO_3$ 채널 광도파로를 이용한 차단형 광변조기

  • 김종성 (한국과학기술원 전기 및 전자공학과) ;
  • 손영성 (한국과학기술원 전기 및 전자공학과) ;
  • 이형재 (한국과학기술원 전기 및 전자공학과) ;
  • 신상영 (한국과학기술원 전기 및 전자공학과)
  • Published : 1989.11.25

Abstract

An electro-optic cutoff modulator with self-aligned electrode that utilizes a single-mode proton-diffused well-guided channel waveguide in a X-cut Y-propagating $LiNbO_3$ substrate is reported. The self-aligned electrode is formed during proton diffusion process of itself. Nearly linear voltage-intensity relationship has been observed. Over 90 % modulation has been achieved with applied voltage of 25 V.

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