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Photon-pair generation in a quadratically nonlinear parity-time symmetric coupler

Antonosyan, Diana; Solntsev, Alexander; Sukhorukov, Andrey

Description

Integrated nonlinear waveguide structures enable generation of quantum entangled photons. We describe theoretically the effects of spatially inhomogeneous loss on the creation of photon pairs through spontaneous parametric down-conversion in quadratically nonlinear directional couplers, where photons experience effective parity-time (PT) symmetric potential due to the presence of optical loss in one of the waveguides. We show that for losses below the PT-breaking threshold, the quantum photon...[Show more]

CollectionsANU Research Publications
Date published: 2018-02-12
Type: Journal article
URI: http://hdl.handle.net/1885/230764
Source: Photonics Research
DOI: 10.1364/PRJ.6.0000A6
Access Rights: Open Access

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