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Compact energy–time entanglement source using cascaded nonlinear interactions

Lefebvre, P. and Valivarthi, R. and Zhou, Q. and Oesterling, L. and Oblak, D. and Tittel, W. (2021) Compact energy–time entanglement source using cascaded nonlinear interactions. Journal of the Optical Society of America B, 38 (4). pp. 1380-1385. ISSN 0740-3224. doi:10.1364/josab.404312. https://resolver.caltech.edu/CaltechAUTHORS:20210430-090245990

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Abstract

Entangled photon pair sources are essential for applications such as quantum communication and metrology. Here we present a compact energy–time entangled photon pair source at telecom wavelengths realized through cascaded second harmonic generation and spontaneous parametric down conversion in a single periodically poled lithium niobate waveguide. We introduce and characterize methods to diminish the effects of Raman scattering, the principal being quasi-CW pumping. The quality of energy–time entanglement produced by the compact source is analyzed using two-photon interference and Franson interference, and visibilities as high as 93.9%±0.4% and 90.5%±0.6% are achieved, respectively.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1364/josab.404312DOIArticle
ORCID:
AuthorORCID
Lefebvre, P.0000-0001-8661-1440
Zhou, Q.0000-0001-7099-1995
Additional Information:© 2021 Optical Society of America. Received 31 July 2020; revised 23 February 2021; accepted 7 March 2021; posted 9 March 2021 (Doc. ID 404312); published 31 March 2021. The authors acknowledge V. Kiselyov for technical support. The detectors were provided by V.B. Verma and S.W. Nam. Funding: Alberta Innovates - Technology Futures; Natural Sciences and Engineering Research Council of Canada; Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO); Canadian Institute for Advanced Research (CIFAR); National Key Research and Development Program of China (2018YFA0307400); National Natural Science Foundation of China (61405030, 61775025). The authors declare no conflicts of interest. Data Availability: Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.
Funders:
Funding AgencyGrant Number
Alberta Innovates Technology FuturesUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)UNSPECIFIED
Canadian Institute for Advanced Research (CIFAR)UNSPECIFIED
National Key Research and Development Program of China2018YFA0307400
National Natural Science Foundation of China61405030
National Natural Science Foundation of China61775025
Issue or Number:4
DOI:10.1364/josab.404312
Record Number:CaltechAUTHORS:20210430-090245990
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20210430-090245990
Official Citation:P. Lefebvre, R. Valivarthi, Q. Zhou, L. Oesterling, D. Oblak, and W. Tittel, "Compact energy–time entanglement source using cascaded nonlinear interactions," J. Opt. Soc. Am. B 38, 1380-1385 (2021); DOI: 10.1364/josab.404312
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:108896
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:30 Apr 2021 17:15
Last Modified:30 Apr 2021 17:15

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