Demonstration of coherent emission from high-$β$ photonic crystal nanolasers at room temperature

Details Demonstration of coherent emission from high-$β$ photonic crystal nanolasers at room temperature Demonstration of coherent emission from high-$β$ photonic crystal nanolasers at room temperature

2010-03-25

arxiv.org/abs/1003.4930v1

Physics

Optics

Scientific paper

We report on lasing at room temperature and at telecommunications wavelength from photonic crystal nanocavities based on InAsP/InP quantum dots. Such laser cavities with a small modal volume and high quality factor display a high spontaneous emission coupling factor beta. 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 8 times the threshold power.

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