Manipulating Frequency Entangled Photons

Abstract. A parametric down conversion source pumped by a monochromatic laser will produce frequency entangled photon pairs. We demonstrate this by an experiment in which five-dimensional frequency entanglement is manipulated at telecommunication wavelengths using commercially available components such as electro-optic phase modula-tors and narrowband frequency filters. A theoretical intuition for this approach is developed by introducing the notion of frequency bin entan-glement. We conclude by showing that using this method one can in principle violate the CHSH, the CGLMP, and a new – as yet unnamed – Bell inequalities