Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Single Mode Lasing Characteristics in Multimode Interferometer-Coupled Semiconductor Square Ring Resonators

다중모드 간섭기를 이용한 반도체 이중사각형 링 공진기에서의 단일모드 발진 특성

  • 정달화 (세종대학교 전자정보통신공학부 광전자공학과) ;
  • 문희종 (세종대학교 전자정보통신공학부 광전자공학과) ;
  • 현경숙 (세종대학교 전자정보통신공학부 광전자공학과)
  • Published : 2009.02.25
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Abstract

We report the spectral characteristics of Multimode Interferometer (MMI)-coupled semicondoctor square ring resonators. The epitaxial layers of the proposed semiconductor ring resonator consists of $1.55{\mu}m$ GaInAsP-InP multiple quantum wells. The lasing characteristics were observed by varying the structure parameters of the MMI-coupled square ring resonators. It is concluded that the MMI-coupled scheme selects a single spectral lasing mode in the double square ring cavities.

다중모드 간섭기를 이용한 반도체 이중사각형 링 공진기에서의 단일 파장 모드 발진특성을 관찰하였다. 실험에 사용된 공진기의 에피택시는 발진 중심파장이 $1.55{\mu}m$인 InGaAsP-InP 다중양자우물 구조를 활성층으로 사용하여 제작되었다. 공진기의 구조는 다중모드 간섭기를 결합기로 이용한 이중사각형 링 공진기이며 발진특성을 측정하였다. 여러 가지 구조 변수를 즉 공진기의 구조 및 크기, 다중모드 간섭기의 길이를 변화시키며 실험을 진행하였다. 실험 결과 다양한 크기와 구성에서 단일파장모드선택 특성이 잘 나타남을 확인할 수 있었다.

Keywords

References

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