Temporally versatile polarization entanglement from Bragg reflection waveguides
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Bragg reflection waveguides emitting broadband parametric downconversion (PDC) have been proven to be well suited for the on-chip generation of polarization entanglement in a straightforward fashion [Sci. Rep. 3, 2314 (2013)]. Here, we investigate how the properties of the created states can be modified by controlling the relative temporal delay between the pair of photons created via PDC. Our results offer an easily accessible approach for changing the coherence of the polarization entanglement, in other words, to tune the phase of the off-diagonal elements of the density matrix. Furthermore, we provide valuable insight into the engineering of these states directly at the source.
Schlager , A , Pressl , B , Suchomel , H , Kamp , M , Höfling , S , Schneider , C & Weihs , G 2017 , ' Temporally versatile polarization entanglement from Bragg reflection waveguides ' , Optics Letters , vol. 42 , no. 11 , pp. 2102-2105 . https://doi.org/10.1364/OL.42.002102
© 2017, Optical Society of America. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at www.osapublishing.org / https://doi.org/10.1364/OL.42.002102
DescriptionThis work was supported by the FWF through project no. I-2065-N27, the DFG Project no. SCHN1376/2-1, the ERC project EnSeNa (257531) and the State of Bavaria.
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