Broadband frequency mode entanglement in waveguided PDC
Andreas Eckstein, Christine Silberhorn
TL;DR
This paper demonstrates broadband frequency mode entanglement in waveguided parametric downconversion, revealing beatings in Hong-Ou-Mandel interference and proposing a detection scheme for broadband bi-photonic states.
Contribution
It introduces broadband frequency mode entanglement in waveguided PDC and a novel detection method for these entangled states.
Findings
Observation of beatings in HOM interference signals.
Identification of broadband bi-photonic states entangled in frequency modes.
Proposal of a detection scheme for broadband entanglement.
Abstract
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 multi-mode KTP waveguide. As explanation we introduce bi-photonic states entangled in their broadband frequency modes generated by waveguide mode triples and propose a suitable entanglement detection scheme.
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