Correlated photon pair generation in AlGaAs nanowaveguides via spontaneous four-wave mixing

Kultavewuti, P., Zhu, E. Y., Qian, L., Pusino, V. , Sorel, M. and Aitchison, J. S. (2016) Correlated photon pair generation in AlGaAs nanowaveguides via spontaneous four-wave mixing. Optics Express, 24(4), pp. 3365-3376. (doi:10.1364/OE.24.003365) (PMID:26906995)

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Abstract

We demonstrate a source of correlated photon pairs which will have applications in future integrated quantum photonic circuits. The source utilizes spontaneous four-wave mixing (SFWM) in a dispersion-engineered nanowaveguide made of AlGaAs, which has merits of negligible two-photon absorption and low spontaneous Raman scattering (SpRS). We observe a coincidence-to-accidental (CAR) ratio up to 177, mainly limited by propagation losses. Experimental results agree well with theoretical predictions of the SFWM photon pair generation and the SpRS noise photon generation. We also study the effects from the SpRS, propagation losses, and waveguide lengths on the quality of our source.

Item Type:Articles
Additional Information:The authors would like to thank the Natural Sciences and Engineering Research Council of Canada (NSERC) and the Edward S. Rogers Sr. Graduate Scholarship for funding.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Sorel, Professor Marc and Pusino, Mr Vincenzo
Authors: Kultavewuti, P., Zhu, E. Y., Qian, L., Pusino, V., Sorel, M., and Aitchison, J. S.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN:1094-4087
ISSN (Online):1094-4087
Published Online:09 February 2016
Copyright Holders:Copyright © 2016 OSA
First Published:First published in Optics Express 24(4): 3365-3376
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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