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Design and analysis of a mode size converter composed of periodically segmented taper waveguide

주기적으로 분리된 광도파로로 구성된 모드 크기 변환기의 설계 및 분석

  • 박보근 (광운대학교 전자공학부/전자통신공학과) ;
  • 정영철 (광운대학교 전자공학부/전자통신공학과)
  • Published : 2004.02.01

Abstract

In this paper, we designed a mode size converter to reduce coupling loss between optical waveguide and single mode fiber. The proposed mode converter is composed of periodically segmented tapered waveguide to achieve small size and easy fabrication. For the optimally designed mode size converter at 1550nm, the taper length is 500(equation omitted), the segmentation period 5ß:, the waveguide width of fiber contact section 1.3ß:, and duty cycle 0.95. The coupling loss of the optimized mode size converter is 0.33㏈/point, which is 1.27㏈/point lower than that without the mode size converter.

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