2017/03/30 by Z. Vernon, M. Menotti, C. C. Tison +8
Physics and Astronomy · #physics.optics #quant-ph
paper · pdf · doi:10.1364/ol.42.003638
published as Optics Letters Vol. 42, Issue 18, pp. 3638-3641 (2017) · 5 pages, 3 figures
arxiv created 2017/03/30 · arxiv updated 2017/10/05
We demonstrate that an integrated silicon microring resonator is capable of efficiently producing photon pairs that are completely unentangled; such pairs are a key component of heralded single photon sources. A dual-channel interferometric coupling scheme can be used to independently tune the quality factors associated with the pump and signal and idler modes, yielding a biphoton wavefunction with Schmidt number arbitrarily close to unity. This will permit the generation of heralded single photon states with unit purity.