Electrode Analysis and Design of LiNbO$_{3}$ Optical Modulator with Coplanar Waveguide-type

COPLANAR WAVEGUIDE-형 LiNbO$_{3}$ 광변조기 전극설계 및 분석

  • 김성구 (전자부품종합기술연구소 광전부품연구팀) ;
  • 윤형도 (전자부품종합기술연구소 광전부품연구팀) ;
  • 윤대원 (전자부품종합기술연구소 광전부품연구팀) ;
  • 유용택 (전남대학교 전자공학과)
  • Published : 1995.12.01

Abstract

In this paper, methods of designing CPW(coplanar waveguide) traveling-wave electrodes are described and their properties are discussed. Especially, the effect of buffer layer thickness to the microwave characteristics of the CPW electrodes are studied in detail. The trade-off relationship between buffer layer thickness and electro-optical properties of the devices are clearly revealde. The microwave characteristics and driving voltage can be further improved by using selected parameters suggested in this paper. To reduce time and effort in designing CPW electrode structure, exact analytical models are proposed.

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