Journal
OPTICS EXPRESS
Volume 14, Issue 13, Pages 6308-6315Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.14.006308
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We demonstrate room temperature continuous-wave laser operation at 1.3 mu m in a photonic crystal nanocavity with InAs/GaAs self-assembled quantum dots by optical pumping. By analyzing a coupled rate equation and the experimental light-light characteristic plot, we evaluate the spontaneous emission coupling factor of the laser to be similar to 0.22. Three-dimensional carrier confinement and a low transparent carrier density due to volume effect in a quantum dot system play important roles in the cw laser operation at room temperature as well as a high quality factor photonic crystal nanocavity. (c) 2006 Optical Society of America.
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