Abstract

We report on lasing at room temperature and at telecommunications wavelength from photonic crystal nanocavities based on $\mathrm{In}\mathrm{As}\mathrm{P}∕\mathrm{In}\mathrm{P}$ quantum dots. Such laser cavities with a small modal volume and high quality factor display a high spontaneous emission coupling factor $\left(\beta \right)$. Lasing is confirmed by measuring the second-order autocorrelation function. A smooth transition from chaotic to coherent emission is observed, and coherent emission is obtained at eight times the threshold power.

© 2010 Optical Society of America

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