On-chip photon-pair generation in a silica microtoroidal cavity

Microcavities with high Q factor and small mode volume have the potential to be efficient and compact sources of photon pairs. Here, we demonstrate on-chip photon-pair generation by spontaneous four-wave mixing in a silica microtoroidal cavity and obtain a coincidence-to-accidental ratio of 7.4 ± 0....

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Bibliographic Details
Published in:Optics express 2021-02, Vol.29 (3), p.3533-3542
Main Authors: Hashimoto, Yosuke, Goban, Akihisa, Hirabayashi, Yuki, Kobayashi, Yuta, Araki, Tomohiro, Aoki, Takao
Format: Article
Language:English
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Summary:Microcavities with high Q factor and small mode volume have the potential to be efficient and compact sources of photon pairs. Here, we demonstrate on-chip photon-pair generation by spontaneous four-wave mixing in a silica microtoroidal cavity and obtain a coincidence-to-accidental ratio of 7.4 ± 0.1 with a pump power of 46 µW. The heralded photons also exhibit antibunching characterized by autocorrelation function values of (2)(0)=0.57±0.03
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.414037