Conditional preparation of single photon wavepackets in pure quantum states
Peter J. Mosley, Jeff S. Lundeen, Brian J. Smith, Ian A. Walmsley, Piotr Wasylczyk, Alfred B. U’Ren, Christine Silberhorn · 2007
We demonstrate the generation of uncorrelated two-photon states through parametric downconversion with specific source engineering and show how this produces pure heralded single photons. Experimental data showing photons with over 95% purity are presented.