Degenerate photon-pair generation in an ultracompact silicon photonic crystal waveguide

Jiakun He, Alex S Clark, Matthew J Collins, Juntao Li, Thomas F Krauss, Benjamin J Eggleton, Chunle Xiong

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

We demonstrate degenerate, correlated photon-pair generation via slow-light-enhanced spontaneous four-wave mixing in a 96 μm long silicon photonic crystal waveguide. Our device represents a more than 50 times smaller footprint than silicon nanowires. We have achieved a coincidence-to-accidental ratio as high as 47 at a photon generation rate of 0.001 pairs per pulse and 14 at a photon generation rate of 0.023 pairs per pulse, which are both higher than the useful level of 10. This demonstration provides a path to generate indistinguishable photons in an ultracompact platform for future quantum photonic technologies.

Original languageEnglish
Pages (from-to)3575-3578
Number of pages4
JournalOptics Letters
Volume39
Issue number12
DOIs
Publication statusPublished - 15 Jun 2014

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