Experimental Demonstration of Nanolaser with sub-$\hat{I}¼$A Threshold Current

Abstract

We demonstrate a photonic crystal nanolaser exhibiting an ultra-low threshold of 730 nA at telecom wavelengths. The laser can be directly modulated at 3 GHz at an energy cost of 1 fJ/bit. This is the lowest threshold reported for any laser operating at room temperature and facilitates low-energy on-chip links.

3 pages with 2 figures