Broadband frequency mode entanglement in waveguided parametric downconversion.
We report the observation of beatings of the coincidence event rate in a Hong-Ou-Mandel interference (HOMI) between signal and idler photons from a parametric downconversion (PDC) process inside a multimode KTP waveguide. As an explanation we introduce biphotonic states entangled in their broadband frequency modes generated by waveguide mode triples and propose a suitable entanglement detection scheme.
Eckstein
Andreas
A
Max Planck Research Group, Erlangen, Germany. aeckstein@optik.uni-erlangen.de
Silberhorn
Christine
C