Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Design and Fabrication of Variable Optical Signal Delay Line Based on Polymer Coupled Ring Resonators

폴리머 결합 링 공진기 기반 가변 광신호 지연기의 설계 및 제작

  • Kwon, Oh-Sang (Department of Electronics and Communications Engineering, Kwangwoon University) ;
  • Kim, Jae-Seong (Department of Electronics and Communications Engineering, Kwangwoon University) ;
  • Chung, Young-Chul (Department of Electronics and Communications Engineering, Kwangwoon University)
  • 권오상 (광운대학교 전자통신공학과) ;
  • 김재성 (광운대학교 전자통신공학과) ;
  • 정영철 (광운대학교 전자통신공학과)
  • Received : 2011.11.03
  • Accepted : 2011.11.24
  • Published : 2011.12.25
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Abstract

In this paper, a variable optical signal delay line based on coupled ring resonators is designed and fabricated in high-index contrast polymer material. The free spectral ranges (FSR) of the rings are designed to be 100 GHz, and 8 coupled rings are used. When two rings near a bus waveguide are in resonance, the optical delay is measured to be about 100 ps. When four rings are in resonance, the measured delay is about 180 ps. Both are close to the theoretical calculations.

본 논문에서는 결합 링 공진기 구조 기반의 가변 광신호 지연기를 고 굴절률 차이를 갖는 폴리머 물질을 이용하여 설계 및 제작하였다. 링들의 FSR은 100 GHz 로 설계하였고, 8 개의 링들이 결합된 구조를 사용하였다. 버스 도파로에 가까운 두 개의 링들이 공진하는 경우 약 100 ps, 4 개의 링들이 공진하는 경우 180 ps 정도의 지연시간이 측정되었으며, 이는 이론적인 결과에 가까움을 확인할 수 있었다.

Keywords

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