Proceedings of the Optical Society of Korea Conference (한국광학회:학술대회논문집)

Optical Society of Korea (한국광학회)
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Linewidth characterics of the PQR Lasers

광양자테 레이저의 선폭 특성

  • 김종삼 (포항공과대학교 전자전기공학과) ;
  • 김준연 (포항공과대학교 전자전기공학과) ;
  • 반노익 (포항공과대학교 전자전기공학과) ;
  • 임권섭 (포항공과대학교 전자전기공학과) ;
  • 류유신 (포항공과대학교 전자전기공학과) ;
  • 배중우 (포항공과대학교 전자전기공학과) ;
  • 권오대 (포항공과대학교 전자전기공학과)
  • Published : 2001.08.01
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Abstract

We measured the linewidth (FWHM) changes of the PQR laser against the diameter of the devices and the injection currents. We report the linewidth narrowing with increasing the PQR currents. A rough estimate of the line width behavior shows an inverse proportionality to the cavity length. The spectrum of $\frac{3}{4}$ circle cavity PQR laser is reported for the first time as well. The spectrum looks slightly different from that of the full circle device due to the structural distortion.

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