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

Stefano Signorini; Sara Piccione; Mher Ghulinyan; Georg Pucker; Lorenzo Pavesi

doi:10.1117/12.2320956

11 September 2018 Are on-chip heralded single photon sources possible by intermodal four wave mixing in silicon waveguides?

Stefano Signorini, Sara Piccione, Mher Ghulinyan, Georg Pucker, Lorenzo Pavesi

Author Affiliations +

Proceedings Volume 10733, Quantum Photonic Devices 2018; 107330G (2018) https://doi.org/10.1117/12.2320956
Event: SPIE Nanoscience + Engineering, 2018, San Diego, California, United States

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.

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Stefano Signorini, Sara Piccione, Mher Ghulinyan, Georg Pucker, and Lorenzo Pavesi "Are on-chip heralded single photon sources possible by intermodal four wave mixing in silicon waveguides?", Proc. SPIE 10733, Quantum Photonic Devices 2018, 107330G (11 September 2018); https://doi.org/10.1117/12.2320956

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