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Proceedings Paper

Are on-chip heralded single photon sources possible by intermodal four wave mixing in silicon waveguides?
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Paper Abstract

On-chip heralded single photon sources are of key importance in the development of chip-scale devices exploiting the quantum properties of light. Single photon states can be produced as single photons heralded from correlated photon pairs generated through spontaneous four wave mixing. On-chip heralded single photon sources based on spontaneous four wave mixing have been already demonstrated. However, the heralded and herald photons are usually generated with wavelengths very close to the pump one, limiting the pump rejection efficiency and the application to the mid infrared. Moreover, the common sources of heralded photons based on spontaneous four wave mixing require spectral post filtering to achieve high purity, limiting the brightness and the integration of these sources. A solution to these problems can be provided by intermodal four wave mixing. In this work, we demonstrate the generation of photon pairs through intermodal four wave mixing in silicon waveguides, measuring the coincidences between the idler at 1.281 μm and the signal at 1.952 μm. We then discuss the application of intermodal four wave mixing to on-chip heralded single photon sources.

Paper Details

Date Published: 11 September 2018
PDF: 7 pages
Proc. SPIE 10733, Quantum Photonic Devices 2018, 107330G (11 September 2018); doi: 10.1117/12.2320956
Show Author Affiliations
Stefano Signorini, Univ. degli Studi di Trento (Italy)
Sara Piccione, Univ. degli Studi di Trento (Italy)
Mher Ghulinyan, Fondazione Bruno Kessler (Italy)
Georg Pucker, Fondazione Bruno Kessler (Italy)
Lorenzo Pavesi, Univ. degli Studi di Trento (Italy)


Published in SPIE Proceedings Vol. 10733:
Quantum Photonic Devices 2018
Cesare Soci; Mario Agio; Kartik Srinivasan, Editor(s)

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