Abstract
The generation of high purity single photons and entangled photon pairs is a crucial first step in many quantum optics experiments, including those that require quantum teleportation [1], entanglement swapping [2], and the generation of multi-photon entanglement [3]. The most widely used and established approach for creating photon pairs is spontaneous parametric down conversion (SPDC) - where pump photons undergo a non-linear optical process to create a down-converted photon pair [4]. Traditionally, the generation of high-purity heralded single photons required severe spectral filtering, introducing additional loss. However, through careful engineering of spectral correlations of the down-converted photon pairs one can circumvent the need for filtering and avoid the accompanying reduction in heralding efficiency.
© 2015 IEEE
PDF ArticleMore Like This
Matthias Bock, Andreas Lenhard, and Christoph Becher
EA_6_6 European Quantum Electronics Conference (EQEC) 2015
O. Alibart, S. Tanzilli, D.B. Ostrowsky, and P. Baldi
IThA3 International Quantum Electronics Conference (IQEC) 2004
A. Eckstein, M. Avenhaus, A. Christ, P. J. Mosley, and C. Silberhorn
EA2_4 European Quantum Electronics Conference (EQEC) 2009