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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


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 × 107 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 g2* (0) of 0.06 proving nonclassical operation in the single photon regime.

Original languageEnglish
Pages (from-to)649-651
Number of pages3
JournalOptics Letters
Issue number5
Publication statusPublished - 1 Mar 2013
Externally publishedYes


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