Improved CAR and noise analysis for photon-pair generation in an ultra-compact silicon slow-light photonic crystal waveguide

Chunle Xiong*, Christelle Monat, Matthew J. Collins, Alex S. Clark, Christian Grillet, Graham D. Marshall, M. J. Steel, Juntao Li, Liam O'Faolain, Thomas F. Krauss, Benjamin J. Eggleton

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

    1 Citation (Scopus)

    Abstract

    We report the improvement and noise analysis of correlated photon-pair generation in an ultra-compact 96 m long dispersion-engineered silicon slow-light photonic crystal waveguide pumped by picosecond pulses. The key metrics for a photon-pair source: coincidence to accidental ratio (CAR) and pair brightness were measured to be a maximum 27 at a pair generation rate of 0.002 pair per pulse. We performed the noise analysis by comparing the single and coincidence count rate at the output end of the waveguide. The noise analysis shows that detector dark counts, leaked pump light, linear and nonlinear losses, multiple pair generation and detector jitter are the limiting factors to the CAR performance of the sources.

    Original languageEnglish
    Title of host publicationConference Proceedings - 2011 IEEE 2nd International Conference on Photonics, ICP 2011
    Place of PublicationPiscataway, NJ
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages1-5
    Number of pages5
    ISBN (Print)9781612842646
    DOIs
    Publication statusPublished - 2011
    Event2011 IEEE 2nd International Conference on Photonics, ICP 2011 - Kota Kinabalu, Sabah, Malaysia
    Duration: 17 Oct 201119 Oct 2011

    Other

    Other2011 IEEE 2nd International Conference on Photonics, ICP 2011
    Country/TerritoryMalaysia
    CityKota Kinabalu, Sabah
    Period17/10/1119/10/11

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