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 contribution

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
CountryMalaysia
CityKota Kinabalu, Sabah
Period17/10/1119/10/11

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