Heralded single-photon source in a III-V photonic crystal

Alex S Clark; Chad Husko; Matthew J Collins; Gaelle Lehoucq; Stéphane Xavier; Alfredo De Rossi; Sylvain Combrié; Chunle Xiong; Benjamin J Eggleton

doi:10.1364/OL.38.000649

Heralded single-photon source in a III-V photonic crystal

Opt Lett. 2013 Mar 1;38(5):649-51. doi: 10.1364/OL.38.000649.

Authors

Alex S Clark¹, Chad Husko, Matthew J Collins, Gaelle Lehoucq, Stéphane Xavier, Alfredo De Rossi, Sylvain Combrié, Chunle Xiong, Benjamin J Eggleton

Affiliation

¹ Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS), Institute of Photonics and Optical Science (IPOS), School of Physics, University of Sydney, Sydney, New South Wales 2006, Australia. a.clark@physics.usyd.edu.au

PMID: 23455253
DOI: 10.1364/OL.38.000649

Abstract

In this Letter we demonstrate heralded single-photon generation in a III-V semiconductor photonic crystal platform through spontaneous four-wave mixing. We achieve a high brightness of 3.4×10(7) pairs·s(-1) nm(-1) W(-1) facilitated through dispersion engineering and the suppression of two-photon absorption in the gallium indium phosphide material. Photon pairs are generated with a coincidence-to-accidental ratio over 60 and a low g(2) (0) of 0.06 proving nonclassical operation in the single photon regime.